From: Kurt Stephens <kurt@...>
Date: 2008-12-21T19:40:37+09:00
Subject: [ruby-core:20753] Re: [PATCH] Promising C coding techniques to reduce MRI's memory use

How difficult to apply to 1.8.6?

Brent Roman wrote:
> Just finished running the standard regression test suite with both
> unpatched and patched versions of 1.8.7.
>
> I think the results are encouraging, but there are a couple issues:
>
>                 Process Size Inital/Final       User's CPU time (from the
> time command)
> Unpatched 1.8.7-p72:     30MB/97MB      92 seconds
> MBARI 6 atop 1.8.7-p2:   30MB/57MB    100 seconds
>
> The patched version reports one additional failure:
>   2) Failure:
> test_should_propagate_signaled(TestBeginEndBlock)
> [./ruby/test_beginendblock.rb:81]:
> <""> expected to be =~
> </Interrupt$/>.
>
> 1878 tests, 1344988 assertions, 2 failures, 0 errors
>
> real	2m35.696s
> user	1m39.422s
> sys	0m3.284s
>
> And, the drb test segfaults with the patched version.
> (so I removed it for both the patched and unpatched for comparason)
>
> Looks like I also will be playing with these patches over the holidays.
>
> Enjoy,
>
> - brent
>
>
>
>