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Re: indirect threading for bytecode interpreter

From: Tom Tromey
Subject: Re: indirect threading for bytecode interpreter
Date: Sun, 20 Sep 2009 21:17:10 -0600
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)

>>>>> "Dan" == Dan Nicolaescu <address@hidden> writes:

Dan> Making the GC generational might help.  The first GC after startup does
Dan> 200K mark_object calls, so if most of those don't need to be scanned for
Dan> each GC, then that might help.


Whatever happened to the Boehm GC branch?  That seems like the simplest
way to implement this feature.

Dan> If you have a testcase that shows GC problems, maybe posting the test
Dan> case would enticemore people look into it...
Here's a script I've been running on the GDB sources:


I've profiled (using oprofile) Emacs running this a few times; typical
results show mark_object at 10-12% of runtime.  It is probably pretty
easy to reproduce this with a variety of elisp programs.


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