Gentoo Archives: gentoo-performance

From: Gyujin Park <gpark@××××××.com>
To: gentoo-performance@l.g.o
Subject: Re: [gentoo-performance] swap?
Date: Sat, 31 Jul 2004 13:27:54
Message-Id: 20040731132750.8CB6C38081@spy23.spymac.net
1 Yes, response in Apache, and vsFTP gets really slow until more memory frees out.
2 (Report from users and other admins while I was testing the system.)
3
4 Thanks,
5
6 Tom
7
8 On Fri Jul 30 20:42 , Colin Kingsley <ckingsley@×××××.com> sent:
9
10 >As far as I know, your system should be stable. The details of how
11 >much memory/swap is used at any given moment probably depends on your
12 >kernel, how much memory you have, etc.
13 >
14 >Do you have any actual evidence of the slow down you mentioned? the
15 >system should begin using swap when/if it needs to. it looks to me
16 >like you discovered the "free" command and are seeing problems where
17 >none exist.
18 >
19 >On Sat, 31 Jul 2004 03:53:58 +0200, lukas lukas@××××××.de> wrote:
20 >> On Saturday 31 July 2004 02:42, Gyujin Park wrote:
21 >> > Does this mean the system will be still stable with 99% memory usage?
22 >> > I mean, at some point it should turn into swap. The system reaches up
23 >> > to 99% physical memory usage with less than 3 MB of physical memory
24 >> > left.
25 >>
26 >> "free" gives me the following outout on my workstation:
27 >>
28 >> total used free shared buffers cached
29 >> Mem: 1550840 1308096 242744 0 94244 859148
30 >> -/+ buffers/cache: 354704 1196136
31 >> Swap: 522104 23868 498236
32 >>
33 >> About 84% memory is used. But about 900MB are used for caching and
34 >> buffering, so in fact there are only about 346MB in "real use".
35 >> If your memory is 99% without buffers and cache, then there is
36 >> something wrong (but I don't know what).
37 >> Can you see a process that consumes that much memory when you are
38 >> calling "ps" or "top"?
39 >> What kind of kernel do you use?
40 >>
41 >> cu
42 >>
43 >> lukas
44 >>
45 >>
46 >>
47 >
48 >--
49 >gentoo-performance@g.o mailing list
50 >
51
52
53 ---- Introducing Spymac MailPro: http://www.spymac.com/mailpro/
54
55 --
56 gentoo-performance@g.o mailing list

Replies

Subject Author
Re: [gentoo-performance] swap? Bart Alewijnse <scarfboy@×××××.com>
Re: [gentoo-performance] swap? Colin Kingsley <ckingsley@×××××.com>