Spur Garbage collection takes 4 times more when loading MSE (WAS: mse loading looks slower :()

Hi,

I made the benchmarks with the files you provided. I have more or less the
same magnitude:
Version 504: 0:00:01:09.021
Version 1175: 0:00:02:37.507

However, by launching it in the time profiler (MooseModel new
importFromMSEStream: (StandardFileStream readOnlyFileNamed:
'd:/ArgoUML-0-34.mse')), it takes
504: 1 min 55
1175: 4 min 25
Well there is a delta...

After investigation, the standard process has almost the same duration (120
secs for prespur and 140 secs for spur).
But, there is a large difference in GC time:

504: not spur
**Memory**
        old +144,822,000 bytes
        young -8,293,660 bytes
        used +136,528,340 bytes
        free -104,186,788 bytes

**GCs**
        full 1 totalling 965ms (1.0% uptime), avg 965.0ms
        incr 3264 totalling 42,279ms (33.0% uptime), avg 13.0ms
        tenures 2,497 (avg 1 GCs/tenure)
        root table 0 overflows

1175: spur
**Memory**
        old +0 bytes
        young +340,048 bytes
        used +340,048 bytes
        free -340,048 bytes
**GCs**
        full 7 totalling 145,003ms (66.0% uptime), avg
20715.0ms
        incr 3288 totalling 30,912ms (14.0% uptime), avg 9.0ms
        tenures 7,146,505 (avg 0 GCs/tenure)
        root table 0 overflows

Total GC time
504: 43 secs
1175: 176 secs

See the performance reports attached.

I let VM people take care of the issue ;)

Cheers,
Vincent

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Tudor Girba
Sent: dimanche 24 janvier 2016 09:08
To: Moose-related development
Subject: [Moose-dev] Re: mse loading looks slower :(

Hi,

I am talking about the difference between Moose 6 images:
- October 7:
https://ci.inria.fr/moose/job/moose-6.0/504/artifact/moose-6.0.zip

- yesterday:
https://ci.inria.fr/moose/job/moose-6.0/1175/artifact/moose-6.0.zip

Multiple things did change, but not in Moose. In the end, I would like to
understand where the slowness comes. Maybe it comes from Spur itself, but
maybe it comes from somewhere else.

Cheers,
Doru



> On Jan 24, 2016, at 1:41 AM, Mariano Martinez Peck <[hidden email]>
wrote:
>
> Doru...just to be sure it is not a Pharo (image change), when you said
before and after Spur, do you mean a Pharo 5.0 exactly (just before Spur)
and a Pharo JUST after it?  Otherwise, the slowness may come from the
difference between the 2 Pharos you are running.
>
> Cheers,
>
> On Sat, Jan 23, 2016 at 5:55 PM, Tudor Girba <[hidden email]> wrote:
> Hi,
>
> I am doing some performance testing of Moose with the Spur VM on Mac.
>
> I tried to load an MSE file with ArgoUML 0.34 and on my machine it loads
twice as slow with Spur than before: 'ArgoUML-0-34' / 'ArgoUML-0-34.mse') fullName). --
www.tudorgirba.com
www.feenk.com

"What is more important: To be happy, or to make happy?"

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I can confirm more time taken
[
        MooseModel new
                importFromMSEStream: (StandardFileStream readOnlyFileNamed:
                        (FileSystem workingDirectory / '../../src' / 'ArgoUML-0-34.mse')
fullName).
        ] timeProfile

I wonder what happens if you block the UI while loading

1178 spur (50542 on vm 420)
  - 85216 tallies, 85302 msec.

**Tree**
--------------------------------
Process: (40s) Morphic UI Process: nil
--------------------------------
32.7% {27886ms} MooseModel class>>importFrom:
   |32.7% {27860ms} MooseModel class>>importFrom:withMetamodel:
   |  32.7% {27854ms} MSEImporter(FMImporter)>>run
   |    32.7% {27854ms} FMMSEParser>>run
   |      32.6% {27850ms} FMMSEParser>>basicRun
   |        32.6% {27850ms} FMMSEParser>>Document
   |          32.4% {27648ms} FMMSEParser>>Element
   |            22.4% {19072ms} FMMSEParser>>Attribute
   |              |8.5% {7209ms} MSEImporter(FMImporter)>>endAttribute:
   |              |  |8.4% {7169ms} FMFutureElement>>endAttribute:
   |              |  |  8.4% {7151ms} FMFutureAttribute>>endAttribute:
   |              |  |    8.4% {7129ms} FMFutureAttribute>>maybeEnd
   |              |  |      4.4% {3753ms}
FM3PropertyDescription>>setOn:values:
   |              |  |        |4.3% {3653ms}
FAMIXMethod(Object)>>mmSetProperty:to:
   |              |  |        |  4.3% {3633ms}
FM3PropertyDescription>>setOn:rawValue:
   |              |  |        |    1.3% {1079ms}
FAMIXParameter(FAMIXStructuralEntity)>>declaredType:
   |              |  |        |      1.3% {1067ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |        |        1.2% {1059ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |        |          1.2% {1051ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |        |            1.2% {1051ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |        |              1.2% {1051ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |        |                1.2% {1051ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |        |                  1.1% {960ms} primitives
   |              |  |      3.9% {3308ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |  |        1.6% {1343ms}
FMMultivalueLink(Collection)>>detect:ifNone:
   |              |  |        1.4% {1180ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |5.9% {4996ms} FMMSEParser>>Value
   |              |  |3.7% {3166ms} FMMSEParser>>Reference
   |              |  |  |2.3% {1945ms} FMMSEParser>>Identifier
   |              |  |  |  1.4% {1232ms} Character>>isDigit
   |              |  |  |    1.3% {1080ms} Character>>characterSet
   |              |  |  |      1.2% {1062ms} EncodedCharSet
class>>charsetAt:
   |              |  |  |        1.2% {1034ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |  |  |          1.2% {1024ms} primitives
   |              |  |1.7% {1425ms} FMMSEParser>>Primitive
   |              |  |  1.2% {1033ms} FMMSEParser>>Number
   |              |5.2% {4420ms} FMMSEParser>>tNAME
   |              |  |4.1% {3503ms} Character>>isAlphaNumeric
   |              |  |  3.5% {2987ms} Character>>isLetter
   |              |  |    3.1% {2667ms} Character>>characterSet
   |              |  |      3.1% {2641ms} EncodedCharSet class>>charsetAt:
   |              |  |        3.0% {2585ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |  |          3.0% {2547ms} primitives
   |              |2.2% {1876ms} MSEImporter(FMImporter)>>beginAttribute:
   |              |  2.2% {1852ms} FMFutureElement>>beginAttribute:
   |              |    1.8% {1558ms} PhexMatcher>>beTrue
   |              |      1.7% {1487ms} PhexMatcher>>true
   |              |        1.6% {1405ms}
PhexMatcher>>expectedUnknownMessageToReturn:
   |            6.0% {5156ms} FMMSEParser>>Serial
   |              |4.8% {4131ms} MSEImporter(FMImporter)>>serial:
   |              |  |4.8% {4125ms} FMFutureElement>>serial:
   |              |  |  4.8% {4121ms} MSEImporter(FMImporter)>>assign:to:
   |              |  |    4.1% {3524ms} FMDanglingReference>>resolve:
   |              |  |      3.4% {2859ms} FMFutureAttribute>>maybeEnd
   |              |  |        2.0% {1706ms}
FM3PropertyDescription>>setOn:values:
   |              |  |          |1.9% {1646ms}
FAMIXMethod(Object)>>mmSetProperty:to:
   |              |  |          |  1.9% {1624ms}
FM3PropertyDescription>>setOn:rawValue:
   |              |  |        1.3% {1137ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |1.1% {905ms} FMMSEParser>>Identifier
   |            2.0% {1680ms} FMMSEParser>>tFULLNAME
   |              |1.6% {1325ms} Character>>isAlphaNumeric
   |              |  1.3% {1075ms} Character>>isLetter
   |              |    1.1% {969ms} Character>>characterSet
   |              |      1.1% {953ms} EncodedCharSet class>>charsetAt:
   |              |        1.1% {937ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |          1.1% {917ms} primitives
   |            1.6% {1395ms} MSEImporter(FMImporter)>>beginElement:
   |              1.6% {1357ms} FMFutureElement class>>with:name:
   |                1.6% {1353ms} FMFutureElement>>with:name:
   |                  1.4% {1195ms} FM3MetaDescription>>createInstance
   |                    1.4% {1163ms} FAMIXImplicitVariable
class(Behavior)>>new
1.4% {1183ms} MooseModel>>silentlyAddAll:
   1.4% {1157ms} MooseModel>>silentlyAdd:
--------------------------------
Process: other processes
--------------------------------
36.2% {30857ms} InputEventFetcher>>eventLoop
   36.2% {30857ms} InputEventFetcher>>waitForInput
29.4% {25047ms} Semaphore>>waitTimeoutMSecs:
   29.4% {25047ms} DelayWaitTimeout>>wait

**Leaves**
36.2% {30857ms} InputEventFetcher>>waitForInput
29.4% {25047ms} DelayWaitTimeout>>wait
7.8% {6637ms} Array(SequenceableCollection)>>at:ifAbsent:
3.6% {3102ms} Array(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
1.4% {1213ms} FMMultivalueLink(Collection)>>detect:ifNone:
1.3% {1125ms} ByteString(String)>>=
1.1% {914ms} PhexMatcher>>expect:describeShould:describeShouldNot:

**Memory**
        old +134,217,728 bytes
        young -134,644,032 bytes
        used -426,304 bytes
        free +134,644,032 bytes

**GCs**
        full 7 totalling 56,554ms (66.0% uptime), avg 8079.0ms
        incr 3309 totalling 13,509ms (16.0% uptime), avg 4.0ms
        tenures 7,140,590 (avg 0 GCs/tenure)
        root table 0 overflows


1178 Spur (50542 on vm 403)
  - 87658 tallies, 87744 msec.

**Tree**
--------------------------------
Process: (40s) Morphic UI Process: nil
--------------------------------
34.1% {29962ms} MooseModel class>>importFrom:
   |34.1% {29954ms} MooseModel class>>importFrom:withMetamodel:
   |  34.1% {29952ms} MSEImporter(FMImporter)>>run
   |    34.1% {29952ms} FMMSEParser>>run
   |      34.1% {29948ms} FMMSEParser>>basicRun
   |        34.1% {29948ms} FMMSEParser>>Document
   |          33.9% {29764ms} FMMSEParser>>Element
   |            22.8% {19998ms} FMMSEParser>>Attribute
   |              |9.1% {7992ms} MSEImporter(FMImporter)>>endAttribute:
   |              |  |9.1% {7972ms} FMFutureElement>>endAttribute:
   |              |  |  9.1% {7968ms} FMFutureAttribute>>endAttribute:
   |              |  |    9.1% {7964ms} FMFutureAttribute>>maybeEnd
   |              |  |      5.2% {4538ms}
FM3PropertyDescription>>setOn:values:
   |              |  |        |5.1% {4444ms}
FAMIXMethod(Object)>>mmSetProperty:to:
   |              |  |        |  5.0% {4386ms}
FM3PropertyDescription>>setOn:rawValue:
   |              |  |        |    1.5% {1287ms}
FAMIXParameter(FAMIXStructuralEntity)>>declaredType:
   |              |  |        |      |1.5% {1283ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |        |      |  1.4% {1255ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |        |      |    1.4% {1247ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |        |      |      1.4% {1247ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |        |      |        1.4% {1247ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |        |      |          1.4% {1247ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |        |      |            1.3% {1177ms} primitives
   |              |  |        |    1.1% {968ms}
FAMIXMethod(FAMIXBehaviouralEntity)>>declaredType:
   |              |  |        |      |1.1% {968ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |        |      |  1.1% {954ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |        |      |    1.1% {952ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |        |      |      1.1% {952ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |        |      |        1.1% {952ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |        |      |          1.1% {952ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |        |      |            1.0% {888ms} primitives
   |              |  |        |    1.1% {958ms} FAMIXInvocation>>receiver:
   |              |  |        |      1.1% {954ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |        |        1.0% {910ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |        |          1.0% {900ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |        |            1.0% {900ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |        |              1.0% {900ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |        |                1.0% {900ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |      3.8% {3367ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |  |        1.6% {1395ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |  |        1.1% {979ms}
FMMultivalueLink(Collection)>>detect:ifNone:
   |              |5.8% {5121ms} FMMSEParser>>Value
   |              |  |3.6% {3197ms} FMMSEParser>>Reference
   |              |  |  |2.4% {2122ms} FMMSEParser>>Identifier
   |              |  |  |  1.6% {1399ms} Character>>isDigit
   |              |  |  |    1.4% {1243ms} Character>>characterSet
   |              |  |  |      1.4% {1225ms} EncodedCharSet
class>>charsetAt:
   |              |  |  |        1.4% {1199ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |  |  |          1.3% {1153ms} primitives
   |              |  |1.8% {1552ms} FMMSEParser>>Primitive
   |              |  |  1.3% {1169ms} FMMSEParser>>Number
   |              |5.2% {4562ms} FMMSEParser>>tNAME
   |              |  |4.1% {3565ms} Character>>isAlphaNumeric
   |              |  |  3.5% {3068ms} Character>>isLetter
   |              |  |    3.2% {2816ms} Character>>characterSet
   |              |  |      3.2% {2782ms} EncodedCharSet class>>charsetAt:
   |              |  |        3.1% {2722ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |  |          3.0% {2658ms} primitives
   |              |2.0% {1726ms} MSEImporter(FMImporter)>>beginAttribute:
   |              |  1.9% {1684ms} FMFutureElement>>beginAttribute:
   |              |    1.6% {1425ms} PhexMatcher>>beTrue
   |              |      1.5% {1351ms} PhexMatcher>>true
   |              |        1.4% {1243ms}
PhexMatcher>>expectedUnknownMessageToReturn:
   |            6.1% {5343ms} FMMSEParser>>Serial
   |              |5.0% {4374ms} MSEImporter(FMImporter)>>serial:
   |              |  5.0% {4370ms} FMFutureElement>>serial:
   |              |    5.0% {4370ms} MSEImporter(FMImporter)>>assign:to:
   |              |      4.2% {3708ms} FMDanglingReference>>resolve:
   |              |        3.4% {3027ms} FMFutureAttribute>>maybeEnd
   |              |          2.1% {1864ms}
FM3PropertyDescription>>setOn:values:
   |              |            |2.1% {1812ms}
FAMIXInheritance(Object)>>mmSetProperty:to:
   |              |            |  2.0% {1790ms}
FM3PropertyDescription>>setOn:rawValue:
   |              |          1.3% {1131ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |            2.3% {2034ms} FMMSEParser>>tFULLNAME
   |              |1.8% {1606ms} Character>>isAlphaNumeric
   |              |  1.6% {1401ms} Character>>isLetter
   |              |    1.5% {1305ms} Character>>characterSet
   |              |      1.5% {1295ms} EncodedCharSet class>>charsetAt:
   |              |        1.5% {1275ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |          1.4% {1259ms} primitives
   |            2.3% {1998ms} MSEImporter(FMImporter)>>beginElement:
   |              2.2% {1948ms} FMFutureElement class>>with:name:
   |                2.2% {1948ms} FMFutureElement>>with:name:
   |                  2.0% {1774ms} FM3MetaDescription>>createInstance
   |                    2.0% {1740ms} FAMIXLocalVariable
class(Behavior)>>new
1.4% {1207ms} MooseModel>>silentlyAddAll:
   1.3% {1183ms} MooseModel>>silentlyAdd:
--------------------------------
Process: other processes
--------------------------------
64.1% {56239ms} Semaphore>>waitTimeoutMSecs:
   64.1% {56239ms} DelayWaitTimeout>>wait

**Leaves**
64.1% {56239ms} DelayWaitTimeout>>wait
9.1% {7960ms} Array(SequenceableCollection)>>at:ifAbsent:
4.5% {3922ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
1.6% {1431ms} ByteSymbol(String)>>=

**Memory**
        old +134,217,728 bytes
        young -133,875,776 bytes
        used +341,952 bytes
        free +133,875,776 bytes

**GCs**
        full 8 totalling 57,100ms (65.0% uptime), avg 7138.0ms
        incr 3317 totalling 14,673ms (17.0% uptime), avg 4.0ms
        tenures 7,133,411 (avg 0 GCs/tenure)
        root table 0 overflows

504 Non-spur (50370)
  - 42377 tallies, 42492 msec.

**Tree**
--------------------------------
Process: other processes
--------------------------------
4.0% {1701ms} Semaphore>>waitTimeoutMSecs:
   4.0% {1701ms} DelayWaitTimeout>>wait
--------------------------------
Process: (40s) Morphic UI Process: nil
--------------------------------
92.3% {39219ms} MooseModel class>>importFrom:
   |92.2% {39179ms} MooseModel class>>importFrom:withMetamodel:
   |  92.2% {39175ms} MSEImporter(FMImporter)>>run
   |    92.2% {39175ms} FMMSEParser>>run
   |      92.2% {39163ms} FMMSEParser>>basicRun
   |        92.2% {39163ms} FMMSEParser>>Document
   |          84.4% {35866ms} FMMSEParser>>Element
   |            |59.5% {25266ms} FMMSEParser>>Attribute
   |            |  |23.1% {9814ms} MSEImporter(FMImporter)>>endAttribute:
   |            |  |  |23.0% {9777ms} FMFutureElement>>endAttribute:
   |            |  |  |  23.0% {9767ms} FMFutureAttribute>>endAttribute:
   |            |  |  |    23.0% {9753ms} FMFutureAttribute>>maybeEnd
   |            |  |  |      12.9% {5465ms}
FM3PropertyDescription>>setOn:values:
   |            |  |  |        |12.6% {5363ms}
FAMIXInvocation(Object)>>mmSetProperty:to:
   |            |  |  |        |  12.6% {5344ms}
FM3PropertyDescription>>setOn:rawValue:
   |            |  |  |        |    3.2% {1378ms}
FAMIXLocalVariable(FAMIXStructuralEntity)>>declaredType:
   |            |  |  |        |      |3.2% {1378ms} FMMultivalueLink
class>>on:update:from:to:
   |            |  |  |        |      |  3.2% {1372ms}
FMMultivalueLink>>unsafeAdd:
   |            |  |  |        |      |    3.2% {1364ms}
OrderedCollection(SequenceableCollection)>>includes:
   |            |  |  |        |      |      3.2% {1364ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |            |  |  |        |      |        3.2% {1364ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |            |  |  |        |      |          3.2% {1364ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |            |  |  |        |      |            3.0% {1281ms} primitives
   |            |  |  |        |    2.9% {1219ms}
FAMIXMethod(FAMIXBehaviouralEntity)>>declaredType:
   |            |  |  |        |      |2.9% {1217ms} FMMultivalueLink
class>>on:update:from:to:
   |            |  |  |        |      |  2.9% {1217ms}
FMMultivalueLink>>unsafeAdd:
   |            |  |  |        |      |    2.9% {1217ms}
OrderedCollection(SequenceableCollection)>>includes:
   |            |  |  |        |      |      2.9% {1217ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |            |  |  |        |      |        2.9% {1217ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |            |  |  |        |      |          2.9% {1217ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |            |  |  |        |      |            2.7% {1133ms} primitives
   |            |  |  |        |    2.8% {1189ms} FAMIXInvocation>>receiver:
   |            |  |  |        |      |2.8% {1187ms} FMMultivalueLink
class>>on:update:from:to:
   |            |  |  |        |      |  2.8% {1179ms}
FMMultivalueLink>>unsafeAdd:
   |            |  |  |        |      |    2.8% {1175ms}
OrderedCollection(SequenceableCollection)>>includes:
   |            |  |  |        |      |      2.8% {1175ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |            |  |  |        |      |        2.8% {1175ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |            |  |  |        |      |          2.8% {1175ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |            |  |  |        |      |            2.6% {1087ms} primitives
   |            |  |  |        |    1.7% {734ms}
ByteSymbol(Symbol)>>asMutator
   |            |  |  |        |      1.6% {694ms}
ByteString(String)>>asSymbol
   |            |  |  |        |        1.5% {628ms} Symbol class>>intern:
   |            |  |  |        |          1.5% {626ms} Symbol class>>lookup:
   |            |  |  |        |            1.5% {626ms} WeakSet>>like:
   |            |  |  |        |              1.5% {622ms} WeakSet>>scanFor:
   |            |  |  |        |                1.2% {495ms}
ByteString(String)>>hash
   |            |  |  |        |                  1.1% {481ms} primitives
   |            |  |  |      9.9% {4216ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |            |  |  |        4.0% {1705ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |            |  |  |          |1.6% {680ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |            |  |  |          |  |1.2% {501ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |            |  |  |          |1.3% {574ms}
FMMultivalueLink(Collection)>>detect:ifNone:
   |            |  |  |        2.9% {1252ms}
FMMultivalueLink(Collection)>>detect:ifNone:
   |            |  |  |          |2.1% {896ms}
FMMultivalueLink(Collection)>>detect:ifFound:ifNone:
   |            |  |  |          |  1.0% {441ms} FMMultivalueLink>>do:
   |            |  |  |        2.0% {852ms} ByteString(String)>>=
   |            |  |  |          1.9% {828ms} primitives
   |            |  |15.4% {6526ms} FMMSEParser>>tNAME
   |            |  |  |12.2% {5185ms} Character>>isAlphaNumeric
   |            |  |  |  |10.7% {4561ms} Character>>isLetter
   |            |  |  |  |  |9.9% {4212ms} Character>>characterSet
   |            |  |  |  |  |  9.8% {4166ms} EncodedCharSet
class>>charsetAt:
   |            |  |  |  |  |    9.7% {4112ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |            |  |  |  |  |      9.5% {4052ms} primitives
   |            |  |  |  |1.2% {496ms} Character>>isDigit
   |            |  |  |1.1% {486ms} Character>>isLetter
   |            |  |  |  1.0% {444ms} Character>>characterSet
   |            |  |  |    1.0% {442ms} EncodedCharSet class>>charsetAt:
   |            |  |  |      1.0% {436ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |            |  |  |        1.0% {426ms} primitives
   |            |  |13.2% {5616ms} FMMSEParser>>Value
   |            |  |  |8.2% {3480ms} FMMSEParser>>Reference
   |            |  |  |  |5.1% {2187ms} FMMSEParser>>Identifier
   |            |  |  |  |  |3.7% {1559ms} Character>>isDigit
   |            |  |  |  |  |  3.4% {1429ms} Character>>characterSet
   |            |  |  |  |  |    3.3% {1419ms} EncodedCharSet
class>>charsetAt:
   |            |  |  |  |  |      3.3% {1407ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |            |  |  |  |  |        3.2% {1379ms} primitives
   |            |  |  |  |2.0% {860ms}
MSEImporter(FMImporter)>>referenceNumber:
   |            |  |  |  |  2.0% {858ms} FMFutureAttribute>>referenceNumber:
   |            |  |  |4.3% {1837ms} FMMSEParser>>Primitive
   |            |  |  |  3.1% {1328ms} FMMSEParser>>Number
   |            |  |  |    1.9% {794ms} Character>>isDigit
   |            |  |  |      1.7% {738ms} Character>>characterSet
   |            |  |  |        1.7% {738ms} EncodedCharSet class>>charsetAt:
   |            |  |  |          1.7% {730ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |            |  |  |            1.7% {722ms} primitives
   |            |  |6.3% {2687ms} MSEImporter(FMImporter)>>beginAttribute:
   |            |  |  6.2% {2645ms} FMFutureElement>>beginAttribute:
   |            |  |    4.3% {1825ms} PhexMatcher>>beTrue
   |            |  |      |4.2% {1767ms} PhexMatcher>>true
   |            |  |      |  3.9% {1675ms}
PhexMatcher>>expectedUnknownMessageToReturn:
   |            |  |      |    2.5% {1077ms} Array(Collection)>>copyWithout:
   |            |  |      |      |2.4% {1041ms}
Array(SequenceableCollection)>>reject:
   |            |  |      |      |  1.3% {566ms} Array
class(SequenceableCollection class)>>new:streamContents:
   |            |  |      |      |    |1.0% {445ms} primitives
   |            |  |      |      |  1.1% {475ms} primitives
   |            |  |      |    1.4% {578ms}
PhexMatcher>>expect:describeShould:describeShouldNot:
   |            |  |      |      1.2% {527ms} primitives
   |            |  |    1.9% {788ms} FMFutureAttribute class>>with:name:
   |            |  |      1.8% {778ms} FMFutureAttribute>>with:name:
   |            |  |        1.3% {543ms} primitives
   |            |14.6% {6224ms} FMMSEParser>>Serial
   |            |  |12.1% {5136ms} MSEImporter(FMImporter)>>serial:
   |            |  |  |12.1% {5124ms} FMFutureElement>>serial:
   |            |  |  |  12.1% {5122ms} MSEImporter(FMImporter)>>assign:to:
   |            |  |  |    9.9% {4215ms} FMDanglingReference>>resolve:
   |            |  |  |      |7.6% {3215ms} FMFutureAttribute>>maybeEnd
   |            |  |  |      |  |4.1% {1737ms}
FM3PropertyDescription>>setOn:values:
   |            |  |  |      |  |  |3.9% {1671ms}
FAMIXAccess(Object)>>mmSetProperty:to:
   |            |  |  |      |  |  |  3.9% {1662ms}
FM3PropertyDescription>>setOn:rawValue:
   |            |  |  |      |  |  |    2.1% {888ms}
FAMIXParameter(FAMIXStructuralEntity)>>declaredType:
   |            |  |  |      |  |  |      2.1% {884ms} FMMultivalueLink
class>>on:update:from:to:
   |            |  |  |      |  |  |        2.1% {882ms}
FMMultivalueLink>>unsafeAdd:
   |            |  |  |      |  |  |          2.1% {882ms}
OrderedCollection(SequenceableCollection)>>includes:
   |            |  |  |      |  |  |            2.1% {882ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |            |  |  |      |  |  |              2.1% {882ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |            |  |  |      |  |  |                2.1% {882ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |            |  |  |      |  |  |                  1.8% {776ms}
primitives
   |            |  |  |      |  |3.4% {1452ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |            |  |  |      |  |  1.5% {650ms}
FMMultivalueLink(Collection)>>detect:ifNone:
   |            |  |  |      |  |    |1.2% {513ms}
FMMultivalueLink(Collection)>>detect:ifFound:ifNone:
   |            |  |  |      |  |  1.0% {443ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |            |  |  |      |2.2% {929ms} PhexMatcher>>beTrue
   |            |  |  |      |  2.2% {920ms} PhexMatcher>>true
   |            |  |  |      |    2.1% {874ms}
PhexMatcher>>expectedUnknownMessageToReturn:
   |            |  |  |      |      1.4% {582ms}
Array(Collection)>>copyWithout:
   |            |  |  |      |        1.3% {574ms}
Array(SequenceableCollection)>>reject:
   |            |  |  |      |          1.1% {457ms} Array
class(SequenceableCollection class)>>new:streamContents:
   |            |  |  |    1.1% {481ms} PhexMatcher>>>=
   |            |  |  |      1.1% {447ms} PhexMatcher>>expect:using:
   |            |  |  |        1.0% {429ms}
PhexMatcher>>expect:describeShould:describeShouldNot:
   |            |  |2.3% {962ms} FMMSEParser>>Identifier
   |            |  |  1.6% {665ms} Character>>isDigit
   |            |  |    1.4% {595ms} Character>>characterSet
   |            |  |      1.4% {583ms} EncodedCharSet class>>charsetAt:
   |            |  |        1.4% {575ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |            |  |          1.3% {569ms} primitives
   |            |5.2% {2230ms} FMMSEParser>>tFULLNAME
   |            |  |4.1% {1737ms} Character>>isAlphaNumeric
   |            |  |  3.6% {1538ms} Character>>isLetter
   |            |  |    3.4% {1452ms} Character>>characterSet
   |            |  |      3.4% {1438ms} EncodedCharSet class>>charsetAt:
   |            |  |        3.3% {1418ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |            |  |          3.3% {1398ms} primitives
   |            |4.3% {1813ms} MSEImporter(FMImporter)>>beginElement:
   |            |  4.1% {1725ms} FMFutureElement class>>with:name:
   |            |    4.0% {1715ms} FMFutureElement>>with:name:
   |            |      3.7% {1560ms} FM3MetaDescription>>createInstance
   |            |        3.6% {1532ms} FAMIXInvocation class(Behavior)>>new
   |            |          1.3% {544ms} FAMIXMethod>>initialize
   |            |            1.2% {528ms}
FAMIXMethod(FAMIXBehaviouralEntity)>>initialize
   |          7.7% {3289ms} MSEImporter>>endDocument
   |            7.7% {3289ms} FMRepository>>addAll:
   |              7.7% {3281ms} FMRepository>>add:
   |                7.7% {3281ms} IdentitySet(Set)>>add:
   |                  7.2% {3048ms} IdentitySet>>scanFor:
   |                    7.1% {3028ms} primitives
2.9% {1243ms} MooseModel>>silentlyAddAll:
   2.9% {1229ms} MooseModel>>silentlyAdd:
     2.0% {838ms} MooseModel>>add:
       1.6% {700ms} MooseModel(MooseAbstractGroup)>>add:
         1.6% {678ms} MooseGroupRuntimeStorage>>add:
           1.6% {670ms} MooseGroupRuntimeStorage>>updateCacheFor:

**Leaves**
22.8% {9667ms} Array(SequenceableCollection)>>at:ifAbsent:
11.0% {4677ms} Array(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
7.5% {3195ms} IdentitySet>>scanFor:
4.0% {1701ms} DelayWaitTimeout>>wait
3.8% {1624ms} ByteString(String)>>=
2.5% {1073ms} FMMultivalueLink(Collection)>>detect:ifFound:ifNone:
2.2% {935ms} PhexMatcher>>expect:describeShould:describeShouldNot:
2.1% {897ms} FMMultivalueLink(Collection)>>detect:ifNone:
2.1% {880ms} FMMultivalueLink>>do:
2.1% {876ms} WriteStream>>nextPut:
1.6% {670ms} FM3MetaDescription>>attributeNamed:ifAbsent:
1.4% {594ms} Array class(SequenceableCollection class)>>new:streamContents:
1.4% {592ms} Array(SequenceableCollection)>>reject:
1.3% {543ms} FMFutureAttribute>>with:name:
1.2% {523ms} SmallInteger(ProtoObject)>>~~
1.2% {497ms} ByteString(String)>>hash

**Memory**
        old +110,336,532 bytes
        young +169,672 bytes
        used +110,506,204 bytes
        free -699,236 bytes

**GCs**
        full 10 totalling 3,122ms (7.0% uptime), avg 312.0ms
        incr 3216 totalling 17,586ms (41.0% uptime), avg 5.0ms
        tenures 2,480 (avg 1 GCs/tenure)
        root table 0 overflows


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Producing less garbage speeds it up

MooseModel>addNoAnnounce: anElement
        self entityStorage add: anElement.
        self privateState flushGroups.
        anElement privateSetMooseModel: self.
        ^anElement

MooseModel>silentlyAddAll: entities
       
        entities do: [:each | self addNoAnnounce: each].
        ^entities


  - 66218 tallies, 66280 msec.

**Tree**
--------------------------------
Process: (40s) Morphic UI Process: nil
--------------------------------
44.9% {29736ms} MooseModel class>>importFrom:
   |44.8% {29722ms} MooseModel class>>importFrom:withMetamodel:
   |  44.8% {29714ms} MSEImporter(FMImporter)>>run
   |    44.8% {29714ms} FMMSEParser>>run
   |      44.8% {29714ms} FMMSEParser>>basicRun
   |        44.8% {29714ms} FMMSEParser>>Document
   |          44.5% {29506ms} FMMSEParser>>Element
   |            31.3% {20727ms} FMMSEParser>>Attribute
   |              |11.8% {7827ms} MSEImporter(FMImporter)>>endAttribute:
   |              |  |11.8% {7819ms} FMFutureElement>>endAttribute:
   |              |  |  11.8% {7811ms} FMFutureAttribute>>endAttribute:
   |              |  |    11.8% {7795ms} FMFutureAttribute>>maybeEnd
   |              |  |      6.4% {4250ms}
FM3PropertyDescription>>setOn:values:
   |              |  |        |6.3% {4154ms}
FAMIXFileAnchor(Object)>>mmSetProperty:to:
   |              |  |        |  6.2% {4130ms}
FM3PropertyDescription>>setOn:rawValue:
   |              |  |        |    1.8% {1175ms}
FAMIXLocalVariable(FAMIXStructuralEntity)>>declaredType:
   |              |  |        |      |1.8% {1171ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |        |      |  1.8% {1167ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |        |      |    1.7% {1159ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |        |      |      1.7% {1159ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |        |      |        1.7% {1159ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |        |      |          1.7% {1159ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |        |      |            1.7% {1107ms} primitives
   |              |  |        |    1.4% {951ms}
FAMIXMethod(FAMIXBehaviouralEntity)>>declaredType:
   |              |  |        |      |1.4% {951ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |        |      |  1.4% {945ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |        |      |    1.4% {939ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |        |      |      1.4% {939ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |        |      |        1.4% {939ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |        |      |          1.4% {939ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |        |      |            1.3% {839ms} primitives
   |              |  |        |    1.3% {879ms} FAMIXInvocation>>receiver:
   |              |  |        |      1.3% {879ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |        |        1.3% {831ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |        |          1.2% {817ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |        |            1.2% {811ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |        |              1.2% {811ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |        |                1.2% {811ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |        |                  1.1% {723ms} primitives
   |              |  |      5.3% {3489ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |  |        1.9% {1291ms}
FMMultivalueLink(Collection)>>detect:ifNone:
   |              |  |          |1.6% {1089ms}
FMMultivalueLink(Collection)>>detect:ifFound:ifNone:
   |              |  |          |  1.3% {861ms} FMMultivalueLink>>do:
   |              |  |          |    1.1% {743ms} primitives
   |              |  |        1.9% {1289ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |7.8% {5141ms} FMMSEParser>>tNAME
   |              |  |6.2% {4122ms} Character>>isAlphaNumeric
   |              |  |  4.8% {3201ms} Character>>isLetter
   |              |  |    |4.4% {2913ms} Character>>characterSet
   |              |  |    |  4.3% {2863ms} EncodedCharSet class>>charsetAt:
   |              |  |    |    4.2% {2811ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |  |    |      4.2% {2769ms} primitives
   |              |  |  1.3% {847ms} Character>>isDigit
   |              |  |    1.2% {763ms} Character>>characterSet
   |              |  |      1.1% {755ms} EncodedCharSet class>>charsetAt:
   |              |  |        1.1% {751ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |  |          1.1% {745ms} primitives
   |              |7.6% {5043ms} FMMSEParser>>Value
   |              |  |4.7% {3107ms} FMMSEParser>>Reference
   |              |  |  |3.0% {1958ms} FMMSEParser>>Identifier
   |              |  |  |  |1.9% {1275ms} Character>>isDigit
   |              |  |  |  |  1.7% {1127ms} Character>>characterSet
   |              |  |  |  |    1.7% {1111ms} EncodedCharSet
class>>charsetAt:
   |              |  |  |  |      1.6% {1093ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |  |  |  |        1.6% {1071ms} primitives
   |              |  |  |1.1% {721ms}
MSEImporter(FMImporter)>>referenceNumber:
   |              |  |  |  1.1% {715ms} FMFutureAttribute>>referenceNumber:
   |              |  |2.4% {1610ms} FMMSEParser>>Primitive
   |              |  |  1.9% {1233ms} FMMSEParser>>Number
   |              |  |    1.1% {741ms} Character>>isDigit
   |              |3.2% {2150ms} MSEImporter(FMImporter)>>beginAttribute:
   |              |  3.2% {2126ms} FMFutureElement>>beginAttribute:
   |              |    2.7% {1806ms} PhexMatcher>>beTrue
   |              |      2.6% {1756ms} PhexMatcher>>true
   |              |        2.5% {1678ms}
PhexMatcher>>expectedUnknownMessageToReturn:
   |              |          1.4% {925ms} Array(Collection)>>copyWithout:
   |              |            |1.3% {891ms}
Array(SequenceableCollection)>>reject:
   |              |          1.1% {721ms}
PhexMatcher>>expect:describeShould:describeShouldNot:
   |            7.9% {5213ms} FMMSEParser>>Serial
   |              |6.4% {4236ms} MSEImporter(FMImporter)>>serial:
   |              |  |6.4% {4226ms} FMFutureElement>>serial:
   |              |  |  6.4% {4222ms} MSEImporter(FMImporter)>>assign:to:
   |              |  |    5.5% {3617ms} FMDanglingReference>>resolve:
   |              |  |      4.5% {2979ms} FMFutureAttribute>>maybeEnd
   |              |  |        2.7% {1760ms}
FM3PropertyDescription>>setOn:values:
   |              |  |          |2.5% {1688ms}
FAMIXInvocation(Object)>>mmSetProperty:to:
   |              |  |          |  2.5% {1656ms}
FM3PropertyDescription>>setOn:rawValue:
   |              |  |          |    1.1% {759ms}
FAMIXLocalVariable(FAMIXStructuralEntity)>>declaredType:
   |              |  |          |      1.1% {759ms} FMMultivalueLink
class>>on:update:from:to:
   |              |  |          |        1.1% {739ms}
FMMultivalueLink>>unsafeAdd:
   |              |  |          |          1.1% {739ms}
OrderedCollection(SequenceableCollection)>>includes:
   |              |  |          |            1.1% {739ms}
OrderedCollection(SequenceableCollection)>>indexOf:
   |              |  |          |              1.1% {739ms}
OrderedCollection(SequenceableCollection)>>indexOf:ifAbsent:
   |              |  |          |                1.1% {739ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
   |              |  |        1.8% {1187ms}
FM3MetaDescription>>attributeNamed:ifAbsent:
   |              |1.2% {819ms} FMMSEParser>>Identifier
   |            2.5% {1672ms} FMMSEParser>>tFULLNAME
   |              |1.9% {1275ms} Character>>isAlphaNumeric
   |              |  1.7% {1105ms} Character>>isLetter
   |              |    1.5% {991ms} Character>>characterSet
   |              |      1.5% {977ms} EncodedCharSet class>>charsetAt:
   |              |        1.4% {961ms}
Array(SequenceableCollection)>>at:ifAbsent:
   |              |          1.4% {937ms} primitives
   |            2.4% {1565ms} MSEImporter(FMImporter)>>beginElement:
   |              2.3% {1523ms} FMFutureElement class>>with:name:
   |                2.3% {1513ms} FMFutureElement>>with:name:
   |                  2.1% {1361ms} FM3MetaDescription>>createInstance
   |                    2.0% {1313ms} FAMIXInvocation class(Behavior)>>new
1.2% {763ms} MooseModel>>silentlyAddAll:
   1.1% {749ms} MooseModel>>addNoAnnounce:
--------------------------------
Process: other processes
--------------------------------
43.4% {28751ms} InputEventFetcher>>eventLoop
   43.4% {28751ms} InputEventFetcher>>waitForInput
10.1% {6724ms} Semaphore>>waitTimeoutMSecs:
   10.1% {6724ms} DelayWaitTimeout>>wait

**Leaves**
43.4% {28751ms} InputEventFetcher>>waitForInput
11.3% {7489ms} Array(SequenceableCollection)>>at:ifAbsent:
10.1% {6724ms} DelayWaitTimeout>>wait
5.5% {3615ms}
OrderedCollection(SequenceableCollection)>>indexOf:startingAt:ifAbsent:
1.9% {1273ms} ByteSymbol(String)>>=
1.8% {1175ms} FMMultivalueLink>>do:
1.6% {1073ms} PhexMatcher>>expect:describeShould:describeShouldNot:
1.2% {787ms} WriteStream>>nextPut:
1.0% {677ms} UndefinedObject(ProtoObject)>>~~
1.0% {671ms} FMMultivalueLink(Collection)>>detect:ifFound:ifNone:

**Memory**
        old +167,772,160 bytes
        young -167,290,864 bytes
        used +481,296 bytes
        free +167,290,864 bytes

**GCs**
        full 9 totalling 36,946ms (56.0% uptime), avg 4105.0ms
        incr 3179 totalling 13,809ms (21.0% uptime), avg 4.0ms
        tenures 7,162,840 (avg 0 GCs/tenure)
        root table 0 overflows


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this is interesting
now I would be curious to understand why spur gc is more busy.

Stef

Le 24/1/16 15:40, Stephan Eggermont a écrit :
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On 24-01-16 15:34, Vincent BLONDEAU wrote:
> Yes, and we have to do several passes to construct the model with references
> (so we store a mapping table).
> Maybe a collection or two are GCed.

Probably a bit more. Before loading, there were 172 instances of
SmallDictionary. After loading, 558293, of which 30194 contain something.

Stephan




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On 24-01-16 15:40, Stephan Eggermont wrote:
> Producing less garbage speeds it up
>
>   - 66218 tallies, 66280 msec.

Hmm, can't reproduce it. It is now again just about as slow as it was.

Stephan

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What should we use instead? Array? nil when it’s empty? How about introducing some sort of a NilDictionary?

Would anyone like to experiment?

Cheers,
Doru


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Hi Vincent,

   I'll take a look early this week.  There's clearly a bug; the Spur
GC is /not/ collecting those dictionaries :-( (thanks Stephan!).
Assuming the bug is fixed times should come down (see below).  It may
be that the bug in Slang that I introduced in December has broken
things because I don't see these symptoms in my daily work (but I use
the most up-to-date VM version possible ;-) ).  But I'm not in denial
and look forward to using MOOSE as a good stress case.

I do want to say that the GC is not complete.  Right now we have a
scavenger that works well, and a global GC that has a slow compaction
algorithm, and hence there are significant pauses.  For example here's
what I see as typical in using SPur for VMMaker work:

memory 160,432,128 bytes
    old 153,658,624 bytes (95.8%)
    young 4,838,224 bytes (3%)
    used 127,009,928 bytes (79.2%)
    free 28,126,456 bytes (17.5%)
GCs 7,265 (?? ms between GCs)
    full 36 totalling 13,229 ms (0% uptime), avg 367.5 ms
    incr 7,229 totalling 6,546 ms (0% uptime), avg 0.9 ms
    tenures 3,589,063 (avg 0 GCs/tenure)

(There's no uptime in the above stats because we're still
transitioning Squeak to the 64-bit clock and there are consequently
bugs in computing uptime).

The plan is to add an incremental global GC so this work is broken up
into much smaller pieces.  I don't want to see 700ms pauses in global
GC; one can't do game animation with that.  So an incremental
mark-sweep is needed.  There are two nice papers we're considering,
one from Lua and one for a truly concurrent collector.  But time is
pressing, so if anyone out there knows GC and is interested in helping
this is a nicely self-contained project for which we'd love to have
volunteers.

_,,,^..^,,,_ (phone)
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Hi Eliot,

Thanks for looking at this.

Please let us know what support you need, or what kind of experiments we can do on our side.

Cheers,
Doru


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Hi Eliot,

I created a package to easily reproduce the problem:
https://dl.dropboxusercontent.com/u/18323746/Tmp/moose-6-for-GC-bug.zip

In there you will get:
- an image,
- the MSE file to be loaded, and
- a Playground script that loads that file.

On my Mac, this takes some 3 minutes, while before it took about 1 minute.

Let me know if you need anything else.

Cheers,
Doru



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On 24-01-16 21:19, Tudor Girba wrote:
> What should we use instead? Array? nil when it’s empty? How about introducing some sort of a NilDictionary?
>
> Would anyone like to experiment?

With the fast become the NullDictionary should work even better than
before. Storing all the keys when we have only so little variants is
wasteful, generating value classes would be much faster

Stephan


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Hi,

 Model Name: MacBook Pro
  Model Identifier: MacBookPro10,1
  Processor Name: Intel Core i7
  Processor Speed: 2.6 GHz
  Number of Processors: 1
  Total Number of Cores: 4
  L2 Cache (per Core): 256 KB
  L3 Cache: 6 MB
  Memory: 16 GB
  Boot ROM Version: MBP101.00EE.B0A
  SMC Version (system): 2.3f36
  Serial Number (system): C02JG3T5DKQ5
  Hardware UUID: 1FF116A4-5040-53B2-A133-F95256DE6C94


Cheers,
Doru


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On 24/01/16 22:53, Eliot Miranda wrote:
> Hi Stephan,
> So Vincent's awful sats are no longer showing up?  He reported a 140
> second GC pause.  What are you seeing?  (.i.e. can you post the full
> stats?)  If this has disappeared then I suspect my Slang bug, which I
> fixed yesterday.  But I will investigate.

I sent you the stats by mail, they were only posted to the moose mailing
list. I'm afraid my somewhat better results can only be explained
through faster hardware, a 4790K i7 on 4GHz, running Ubuntu 15.10.
Loading the mse file still spends 2/3 of time in garbage collection, at
least mostly. I had one run that was much better 85s -> 66s, I thought
by not creating so much garbage.

Stephan


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Hi Eliot,

Indeed, this was a Spur image. I will put together the same setup with a pre-Spur image and get back to you.

Cheers,
Doru


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