Fwd: [squeak-dev] About Collections-ul.137..140

> ---------- Forwarded message ----------
> From: Levente Uzonyi <[hidden email]>
> Date: Sun, Sep 20, 2009 at 4:38 PM
> Subject: [squeak-dev] About Collections-ul.137..140
> To: [hidden email]
>
>
> Hi!
>
> Just uploaded four packages to inbox: Collections-ul.137,
> Collections-ul.138, Collections-ul.139 and Collections-ul.140. These
> packages reimplement #rehash and #grow in Set and its subclasses
> (except MethodDictionary). The ideas come are from Ralph Boland's
> FasterSets project, but the implementation is different. According to
> my measurements they are even faster. The four packages should be
> loaded in the given order one-by-one otherwise mc might remove old
> methods before adding new ones, etc (couldn't come up with a better mc
> based load mechanism).
>
> While I was rewriting these methods, I found that KeyedSet and
> KeyedIdentitySet are not used (no references, no senders) in the
> trunk.
> Also checked that in a 3.8.1 full image they have no references (just
> senders in DecompilerTests >> #decompilerDiscrepancies). I think they
> might be removed from the base image and moved to a separate package.
>
> Cheers,
> Levente
>
>
>
>
> --
> Damien Cassou
> http://damiencassou.seasidehosting.st
>
> "Lambdas are relegated to relative obscurity until Java makes them
> popular by not having them." James Iry
>

> I suggest you test your version to the version currently in fasterSets
> to see which one is actually faster.
> Note that fasterSets has code for measuring performance at least in
> terms of the number of compares.
> Perhaps you can make the comparision and post the results.  I would
> like to see them.
> I suggest that you study the current version of fasterSets and your
> version and combine the best
> features of both.
>
> If you wanted to make improvements I don't know why you didn't start
> from the newer version.
> I believe it was Damien Cassou who proposed that I make most of them.
> I also asked that any modifications be incorporated into fasterSets
> but I assume you have not done this.

> 2009/9/21 Damien Cassou <[hidden email]>:
>> ---------- Forwarded message ----------
>> From: Levente Uzonyi <[hidden email]>
>> Date: Sun, Sep 20, 2009 at 4:38 PM
>> Subject: [squeak-dev] About Collections-ul.137..140
>> To: [hidden email]
>>
>>
>> Hi!
>>
>> Just uploaded four packages to inbox: Collections-ul.137,
>> Collections-ul.138, Collections-ul.139 and Collections-ul.140. These
>> packages reimplement #rehash and #grow in Set and its subclasses
>> (except MethodDictionary). The ideas come are from Ralph Boland's
>> FasterSets project, but the implementation is different. According to
>> my measurements they are even faster. The four packages should be
>> loaded in the given order one-by-one otherwise mc might remove old
>> methods before adding new ones, etc (couldn't come up with a better mc
>> based load mechanism).
>>
>> While I was rewriting these methods, I found that KeyedSet and
>> KeyedIdentitySet are not used (no references, no senders) in the
>> trunk.
>> Also checked that in a 3.8.1 full image they have no references (just
>> senders in DecompilerTests >> #decompilerDiscrepancies). I think they
>> might be removed from the base image and moved to a separate package.
>>
>> Cheers,
>> Levente
>>
>>
>>
>>
>> --
>> Damien Cassou
>> http://damiencassou.seasidehosting.st
>>
>> "Lambdas are relegated to relative obscurity until Java makes them
>> popular by not having them." James Iry
>>
>
>
> It sounds like you are using an older version of fasterSets.  The
> original version did not make the
> modifications for Method dictionary but the new version does.  I also
> made a number of other improvements.
> I suggest you test your version to the version currently in fasterSets
> to see which one is actually faster.
> Note that fasterSets has code for measuring performance at least in
> terms of the number of compares.
> Perhaps you can make the comparision and post the results.  I would
> like to see them.
> I suggest that you study the current version of fasterSets and your
> version and combine the best
> features of both.
>
> If you wanted to make improvements I don't know why you didn't start
> from the newer version.
> I believe it was Damien Cassou who proposed that I make most of them.
> I also asked that any modifications be incorporated into fasterSets
> but I assume you have not done this.
>
>
> Regards,
>
> Ralph Boland
>