From: William Lee Irwin III <wli@holomorphy.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [RFC][PATCH] iowait statistics
Date: Wed, 15 May 2002 11:46:46 -0700 [thread overview]
Message-ID: <20020515184646.GH27957@holomorphy.com> (raw)
In-Reply-To: <20020515183004.GG27957@holomorphy.com> <Pine.LNX.4.44L.0205151533060.32261-100000@imladris.surriel.com>
On Wed, May 15, 2002 at 03:33:58PM -0300, Rik van Riel wrote:
> Well, with the amount of memory you have in the machine
> I expect the time spent in idle and iowait to be fairly
> limited during a repetitive kernel compile ;)
> If everything "looks" normal in top and vmstat things
> should be ok.
On Wed, May 15, 2002 at 03:33:58PM -0300, Rik van Riel wrote:
$ vmstat 1
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
17 0 0 0 182880 32364 55180 0 0 2 77 29 229 84 6 10
17 0 0 0 178840 32380 55268 0 0 0 1240 169 766 95 5 0
16 0 0 0 168056 32380 55480 0 0 0 0 104 829 95 5 0
20 0 0 0 197960 32380 55616 0 0 0 0 105 1156 94 6 0
16 0 0 0 179416 32380 55632 0 0 0 0 108 994 95 5 0
18 0 0 0 184428 32380 55692 0 0 0 0 109 954 94 6 0
16 0 0 0 165684 32396 55720 0 0 0 1148 182 1069 96 4 0
17 0 0 0 155572 32396 55732 0 0 0 0 104 854 96 4 0
17 0 0 0 181108 32400 56636 0 0 0 0 104 853 95 5 0
18 0 0 0 194772 32400 56692 0 0 0 0 103 955 94 6 0
16 0 0 0 185068 32400 56856 0 0 0 0 104 1006 95 5 0
18 1 0 0 191744 32408 56972 0 0 0 1808 286 1062 95 5 0
16 0 0 0 202512 32408 57092 0 0 0 0 103 956 94 6 0
17 0 0 0 191116 32408 57140 0 0 0 0 103 1143 91 9 0
17 0 0 0 202032 32408 57288 0 0 0 0 103 899 93 7 0
17 0 0 0 187764 32408 57320 0 0 0 0 103 928 92 8 0
18 1 0 0 198048 32408 57400 0 0 0 1776 294 1026 94 6 0
16 1 0 0 205108 32408 57436 0 0 0 0 104 842 96 4 0
16 0 0 0 181964 32408 57488 0 0 0 0 103 1028 95 5 0
16 0 0 0 175224 32408 57524 0 0 0 0 104 961 95 5 0
All good there. OTOH:
$ top
fscanf failed on /proc/stat for cpu 1
fscanf failed on /proc/stat for cpu 2
fscanf failed on /proc/stat for cpu 3
... and it proceeds thus:
11:45am up 2:00, 4 users, load average: 17.18, 16.86, 16.94
52 processes: 50 sleeping, 2 running, 0 zombie, 0 stopped
CPU0 states: 72.2% user, 27.1% system, 0.0% nice, 0.2% idle
fscanf failed on /proc/stat for cpu 1
Mem: 499088K av, 174936K used, 324152K free, 0K shrd, 32684K buff
Swap: 1052248K av, 0K used, 1052248K free 61812K cached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
26200 wli 25 0 13780 13M 2204 R 10.0 2.7 0:01 cc1
26246 wli 15 0 1060 1060 804 R 0.1 0.2 0:00 top
1 root 15 0 492 492 428 S 0.0 0.0 0:00 init
2 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU0
3 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU1
4 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU2
5 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU3
6 root 15 0 0 0 0 SW 0.0 0.0 0:00 keventd
7 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU0
8 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU1
9 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU2
10 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU3
11 root 25 0 0 0 0 SW 0.0 0.0 0:00 kswapd
12 root 25 0 0 0 0 SW 0.0 0.0 0:00 pdflush
... i.e. a little bit of recurring fscanf stuff.
Cheers,
Bill
WARNING: multiple messages have this Message-ID (diff)
From: William Lee Irwin III <wli@holomorphy.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [RFC][PATCH] iowait statistics
Date: Wed, 15 May 2002 11:46:46 -0700 [thread overview]
Message-ID: <20020515184646.GH27957@holomorphy.com> (raw)
In-Reply-To: <Pine.LNX.4.44L.0205151533060.32261-100000@imladris.surriel.com>
On Wed, May 15, 2002 at 03:33:58PM -0300, Rik van Riel wrote:
> Well, with the amount of memory you have in the machine
> I expect the time spent in idle and iowait to be fairly
> limited during a repetitive kernel compile ;)
> If everything "looks" normal in top and vmstat things
> should be ok.
On Wed, May 15, 2002 at 03:33:58PM -0300, Rik van Riel wrote:
$ vmstat 1
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
17 0 0 0 182880 32364 55180 0 0 2 77 29 229 84 6 10
17 0 0 0 178840 32380 55268 0 0 0 1240 169 766 95 5 0
16 0 0 0 168056 32380 55480 0 0 0 0 104 829 95 5 0
20 0 0 0 197960 32380 55616 0 0 0 0 105 1156 94 6 0
16 0 0 0 179416 32380 55632 0 0 0 0 108 994 95 5 0
18 0 0 0 184428 32380 55692 0 0 0 0 109 954 94 6 0
16 0 0 0 165684 32396 55720 0 0 0 1148 182 1069 96 4 0
17 0 0 0 155572 32396 55732 0 0 0 0 104 854 96 4 0
17 0 0 0 181108 32400 56636 0 0 0 0 104 853 95 5 0
18 0 0 0 194772 32400 56692 0 0 0 0 103 955 94 6 0
16 0 0 0 185068 32400 56856 0 0 0 0 104 1006 95 5 0
18 1 0 0 191744 32408 56972 0 0 0 1808 286 1062 95 5 0
16 0 0 0 202512 32408 57092 0 0 0 0 103 956 94 6 0
17 0 0 0 191116 32408 57140 0 0 0 0 103 1143 91 9 0
17 0 0 0 202032 32408 57288 0 0 0 0 103 899 93 7 0
17 0 0 0 187764 32408 57320 0 0 0 0 103 928 92 8 0
18 1 0 0 198048 32408 57400 0 0 0 1776 294 1026 94 6 0
16 1 0 0 205108 32408 57436 0 0 0 0 104 842 96 4 0
16 0 0 0 181964 32408 57488 0 0 0 0 103 1028 95 5 0
16 0 0 0 175224 32408 57524 0 0 0 0 104 961 95 5 0
All good there. OTOH:
$ top
fscanf failed on /proc/stat for cpu 1
fscanf failed on /proc/stat for cpu 2
fscanf failed on /proc/stat for cpu 3
... and it proceeds thus:
11:45am up 2:00, 4 users, load average: 17.18, 16.86, 16.94
52 processes: 50 sleeping, 2 running, 0 zombie, 0 stopped
CPU0 states: 72.2% user, 27.1% system, 0.0% nice, 0.2% idle
fscanf failed on /proc/stat for cpu 1
Mem: 499088K av, 174936K used, 324152K free, 0K shrd, 32684K buff
Swap: 1052248K av, 0K used, 1052248K free 61812K cached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
26200 wli 25 0 13780 13M 2204 R 10.0 2.7 0:01 cc1
26246 wli 15 0 1060 1060 804 R 0.1 0.2 0:00 top
1 root 15 0 492 492 428 S 0.0 0.0 0:00 init
2 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU0
3 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU1
4 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU2
5 root 0K 0 0 0 0 SW 0.0 0.0 0:00 migration_CPU3
6 root 15 0 0 0 0 SW 0.0 0.0 0:00 keventd
7 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU0
8 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU1
9 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU2
10 root 34 19 0 0 0 SWN 0.0 0.0 0:00 ksoftirqd_CPU3
11 root 25 0 0 0 0 SW 0.0 0.0 0:00 kswapd
12 root 25 0 0 0 0 SW 0.0 0.0 0:00 pdflush
... i.e. a little bit of recurring fscanf stuff.
Cheers,
Bill
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/
next prev parent reply other threads:[~2002-05-15 18:48 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-14 1:19 [RFC][PATCH] iowait statistics Rik van Riel
2002-05-14 1:19 ` Rik van Riel
2002-05-14 2:18 ` Andrew Morton
2002-05-14 2:18 ` Andrew Morton
2002-05-14 12:30 ` Rik van Riel
2002-05-14 12:30 ` Rik van Riel
2002-05-15 17:02 ` Denis Vlasenko
2002-05-15 17:02 ` Denis Vlasenko
2002-05-16 7:41 ` Andrew Morton
2002-05-16 7:41 ` Andrew Morton
2002-05-16 14:04 ` Denis Vlasenko
2002-05-14 15:39 ` William Lee Irwin III
2002-05-14 15:39 ` William Lee Irwin III
2002-05-14 16:36 ` Rik van Riel
2002-05-14 16:36 ` Rik van Riel
2002-05-14 16:54 ` William Lee Irwin III
2002-05-14 16:54 ` William Lee Irwin III
2002-05-15 17:17 ` Denis Vlasenko
2002-05-15 17:17 ` Denis Vlasenko
2002-05-15 14:03 ` Rik van Riel
2002-05-15 14:03 ` Rik van Riel
2002-05-15 20:17 ` Denis Vlasenko
2002-05-15 20:17 ` Denis Vlasenko
2002-05-15 16:13 ` Rik van Riel
2002-05-15 16:13 ` Rik van Riel
2002-05-15 16:21 ` William Lee Irwin III
2002-05-15 16:21 ` William Lee Irwin III
2002-05-15 17:00 ` William Lee Irwin III
2002-05-15 17:00 ` William Lee Irwin III
2002-05-15 18:16 ` Bill Davidsen
2002-05-15 18:16 ` Bill Davidsen
2002-05-15 18:30 ` William Lee Irwin III
2002-05-15 18:30 ` William Lee Irwin III
2002-05-15 18:33 ` Rik van Riel
2002-05-15 18:33 ` Rik van Riel
2002-05-15 18:46 ` William Lee Irwin III [this message]
2002-05-15 18:46 ` William Lee Irwin III
2002-05-15 19:00 ` Rik van Riel
2002-05-15 19:00 ` Rik van Riel
2002-05-16 11:42 ` Denis Vlasenko
2002-05-16 11:42 ` Denis Vlasenko
2002-05-16 9:49 ` Leigh Brown
2002-05-16 14:51 ` Rik van Riel
2002-05-16 16:44 ` Leigh Brown
2002-05-17 8:02 ` Jens Axboe
2002-05-16 11:14 ` Denis Vlasenko
2002-05-16 11:14 ` Denis Vlasenko
2002-05-15 15:15 ` Bill Davidsen
2002-05-15 15:15 ` Bill Davidsen
2002-05-16 10:58 ` Denis Vlasenko
2002-05-16 10:58 ` Denis Vlasenko
2002-05-14 18:19 ` Martin J. Bligh
2002-05-14 18:19 ` Martin J. Bligh
2002-05-15 1:31 ` Bill Davidsen
2002-05-15 1:41 ` William Lee Irwin III
2002-05-15 1:41 ` William Lee Irwin III
2002-05-15 14:39 ` Bill Davidsen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20020515184646.GH27957@holomorphy.com \
--to=wli@holomorphy.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=riel@conectiva.com.br \
--cc=vda@port.imtp.ilyichevsk.odessa.ua \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.