Date: Sun, 9 Jun 1996 21:12:36 -0400 (EDT) From: Brian Tao <taob@io.org> To: "John S. Dyson" <toor@dyson.iquest.net> Cc: dyson@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: Memory leak or reporting problem in 2.2-960501-SNAP? Message-ID: <Pine.NEB.3.92.960609210401.8414I-100000@zap.io.org> In-Reply-To: <199606100017.TAA05432@dyson.iquest.net>
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On Sun, 9 Jun 1996, John S. Dyson wrote:
>
> Generally, your system will be able to sustain a very slight amount of
> paging without a major performance hit
Luckily, none of the systems here page very much during normal
usage, and with the way memory prices are now, it shouldn't be too
difficult to keep up with demand. :)
> The problem is that the system will use as much memory as it has...
True, but the partitioning of memory is different, and that's what
I'm interested in. I just rebooted our Web/FTP server. Here's the
header from 'top', again with about 60 httpd's and 10 ftpd's running:
load averages: 0.41, 0.42, 0.28 21:07:47
103 processes: 1 running, 102 sleeping
Cpu states: 5.3% user, 0.0% nice, 12.9% system, 8.3% interrupt, 73.5% idle
Mem: 61M Active, 1536K Inact, 19M Wired, 22M Cache, 6413K Buf, 25M Free
Swap: 262M Total, 4000K Used, 258M Free, 2% Inuse
This intuitively looks more "correct" than the 91M active I saw
earlier, under similar load. I generally ignore the amount of cache
reported, since it grows and shrinks with the amount of otherwise free
memory.
> Now for forks/execs we are at parity or faster even under light load
> (from 2.1 to 2.2 we have speeded up forks by 3x and fork/execs by
> about 2x.) There is another group of people working on the code,
> where we should see another performance increase.
*applause* *applause*
--
Brian Tao (BT300, taob@io.org, taob@ican.net)
Systems and Network Administrator, Internet Canada Corp.
"Though this be madness, yet there is method in't"
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