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RE: Win2k and cygwin memory leak
- From: "Hannu E K Nevalainen \(garbage mail\)" <garbage_collector at telia dot com>
- To: <cygwin at cygwin dot com>
- Date: Fri, 8 Aug 2003 00:10:54 +0200
- Subject: RE: Win2k and cygwin memory leak
"Me too!" `8-7, well...
I consider this be a fine-tune issue regarding Windows, this ofcourse
affects cygwin - and all other software packages that has been installed.
I'll let it be unsaid whether this should have been automated by M$ or
not... (I _do_ have an opinion... ;-)
After having read what is on this page:
> RAMpage => http://www.jfitz.com/software/RAMpage/
I can only say; I _DO_ agree.
I have been running W98 (and SE) ever since I got my brand new P2@450/128MB
(it was top spec. at that time!) - I installed W2K just recently. (Now w
The first 2-3 years it was turned on, all the time - running the first
"distributed.net" projects. At least three times a week I had to restart
windows, simply because RAM was all wasted. As I later concluded - it was
vcache (i.e. disk buffering) that filled up RAM to the extent that there was
NOTHING left for application use - at this point all memory allocations lead
to EXTENSIVE swap file use.
IMO this behaviour was/is very prominent in W98. I found a remedy though...
first running a sibling to RAMpage, then by fiddling a bit with
"system.ini" - see below.
This little addition to the ini-file has held the machine very much more
usable, with just a little more disk-thrashing as side effect.
I wouldn't be too surprised if there STILL is something like this left in
more recent Windows versions.
If there is a this easy remedy for them is beyond my knowledge.
So, cgf is right here IMO.
I have kept maxfilecache (KBytes) at 10-20% of installed RAM and chunksize
(Bytes) as high as I have considered reasonable.
a) maxfilecache/chunksize should be a fairly high number. (better
b) chunksize shouldn't be _too_ small. (too small -> overhead grows)
Please note that I have NOT done any benchmarks here...
-- system.ini - addition/change for 256MB RAM --
/Hannu E K Nevalainen, B.Sc. EE Microcomputer systems - 59?14'N, 17?12'E
> "Christopher Faylor" <firstname.lastname@example.org>@cygwin.com on
> 08/07/2003 11:40:57
> Please respond to email@example.com
> Sent by: firstname.lastname@example.org
> To: email@example.com
> cc: (bcc: Brian Kelly/WTC1/Empire)
> Subject: Re: Win2k and cygwin memory leak
> On Thu, Aug 07, 2003 at 11:32:42AM -0400, Rolf Campbell wrote:
> >This may be a Win2000 problem, not a cygwin problem...What service pack
> >are you running?
> "May be"? You run a bunch of programs, exit them, and Windows
> slowly loses
> memory after each exit?
> Hard to see how that's a cygwin problem.
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