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Date: Wed, 27 Jul 2005 19:31:53 -0400
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: perl - segfault on "free unused scalar"
Message-ID: <20050727233153.GB21845@trixie.casa.cgf.cx>
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On Thu, Jul 28, 2005 at 12:35:02AM +0200, Krzysztof Duleba wrote:
>Igor Pechtchanski wrote:
>>On Wed, 27 Jul 2005, Krzysztof Duleba wrote:
>
>>>I've simplified the test case. It seems that Cygwin perl can't handle
>>>too much memory. For instance:
>>>
>>>$ perl -e '$a="a"x(200 * 1024 * 1024); sleep 9'
>
>>>$ perl -e '$a="a"x(1024 * 1024);my %b; $b{$_}=$a for(1..400);sleep 9'
>
>>>$ perl -e '$a="a"x(50 * 1024 * 1024);$b=$a;$c=$a;$d=$a;$e=$a;sleep 10'
>>
>>Yeah.  Set heap_chunk_in_mb to include all available memory, and I'm sure
>>you'll find that Cygwin perl works the same too.
>
>After setting heap_chunk_in_mb to 2048, all those tests passed. Thanks! But 
>I still don't understand why C isn't bound by heap_chunk_in_mb and perl is.

I think we have to work at making C as mean as perl seems to be.

What's particularly perplexing is that they are both maintained by the
same person so you'd expect the meanness quotient to be the same for
each package.

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