AR 59342.
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]] On
Behalf Of John Brant
Sent: Tuesday, February 09, 2010 11:32 AM
To: VW NC
Subject: [vwnc] profiler bug
The TimeProfiler is broken when your stack grows over a depth of 127.
This bug makes the profiler almost useless for deep call stacks. For
example, if you have:
Object>>foo: a
a < 0 ifTrue: [^10000 factorial].
^self bar: a
Object>>bar: a
^self foo: a - 1
and run "TimeProfiler profile: [Object foo: 1000]", you get a profile
that ends with:
...
100.0 Object>>foo:
50.0 Object>>bar:
50.0 Object>>foo:
>From this profile, it appears that the #foo: method calls itself, but
>it
doesn't.
It appears that the "optimization" code in MessageTally>>tally:by:
method is causing the problem.
John Brant
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