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Re: DWORD "heap_chunk_in_mb" and CYGWIN_NT-5.2-WOW64
- From: Ulf-Dietrich Braumann <braumann at uni-leipzig dot de>
- To: cygwin at cygwin dot com
- Date: Sat, 18 Dec 2010 22:51:18 +0100
- Subject: Re: DWORD "heap_chunk_in_mb" and CYGWIN_NT-5.2-WOW64
- References: <Pine.WNT.4.64.1011101210260.2128@zbpxnh.vmov.hav-yrvcmvt.qr>
- Reply-to: braumann at uni-leipzig dot de
Hi,
I need to revise my problem report some weeks ago. Actually, the "Changing
Cygwin's Maximum Memory" explanations under
http://www.cygwin.com/cygwin-ug-net/setup-maxmem.htm recommending
something like
regtool -i set /HKLM/Software/Cygwin/heap_chunk_in_mb 2048
regtool -v list /HKLM/Software/Cygwin
do work under Windows Server 2003 64bit. And exactly,
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Cygwin is that place where the
abovementioned regtool invocation will place "heap_chunk_in_mb".
Sorry for having bothered you some time ago, I did something wrong that
day (no idea what). The max_memory check program now returns 1792MB
accessible memory.
Regards - Ulf-Dietrich
On Wed, 10 Nov 2010, Ulf-Dietrich Braumann wrote:
Hi,
it is maybe no surprise that the advice for changing cygwin's maximum
memory given under http://www.cygwin.com/cygwin-ug-net/setup-maxmem.html
does not work under Windows Server 2003 64bit, i.e. the max_memory.c
check program always returns 1536MB available memory, no matter if I
place the DWORD "heap_chunk_in_mb" (I want 2048MB) in the
HKEY_LOCAL_MACHINE or the HKEY_CURRENT_USER registry branch. And yes, I
always have restarted the whole server to give cygwin a chance to read
the variable.
During my search I have found some Cygwin entries in a branch
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Cygwin, so I have tried to place
the "heap_chunk_in_mb" there, but got no effect.
Does anybody know where to correctly place the DWORD "heap_chunk_in_mb"
on a Windows Server 2003 64bit running CYGWIN_NT-5.2-WOW64?
Thanks a lot - Ulf-Dietrich
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