* [2.4.17rc1] Swapping
@ 2001-12-18 13:09 Andreas Hartmann
0 siblings, 0 replies; only message in thread
From: Andreas Hartmann @ 2001-12-18 13:09 UTC (permalink / raw)
To: Kernel-Mailingliste; +Cc: Marcelo Tosatti
[-- Attachment #1: Type: text/plain, Size: 1786 bytes --]
Hello all,
I tested linux 2.4.17rc1 regarding the VM. As test I did what I'm doing
frequently: making a incremental backup (the source is about 20 GB) with
rsync (via ssh) of my server to my backup-server.
server -----> backup-server
The building of the filelist on the server needed 64MB (!) swap. The
building of the filelist on the backup-server needed 151 MB swap (!)
You can find the processlist with all running processes of the server
and the backup-server in the attached file VM. I used a file because of
the ugly line cutting in the mail.
The processlist of the server was done after completing the filelist on
the server - the processlist of the backup-server was a snapshot while
building its filelist.
During data transport, the swap space on the backup-server increased to
243 MB (!) and the system swaped nearly nonstop. Because the
swap-space reached the limit, I gave the backup-server during
data-transport more swap with swapon /dev/hdb13.
A snapshot of free on the backup-server:
free
total used free shared buffers cached
Mem: 514368 509968 4400 0 177328 164220
-/+ buffers/cache: 168420 345948
Swap: 1052208 243228 808980
After completing, the swap on the backupserver was reduced to 65MB and
on the server to 37MB
I think it is not necessary to emphasis, that the backup-server was very
slow and tenacious during data transport!
The behaviour of 2.4.17rc1 isn't better than evry other 2.4.x-version.
There is only one exception:
I did the same with kernel 2.4.13 - and this version worked extremly
fine nearly without any swapping.
Linux-2.2.x is working fine, too - that is without swapping in this
situation.
Regards,
Andreas Hartmann
[-- Attachment #2: VM --]
[-- Type: text/plain, Size: 14515 bytes --]
server
ps -aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 1100 56 ? S Dec17 0:03 init [2]
root 2 0.0 0.0 0 0 ? SW Dec17 0:00 [keventd]
root 3 0.0 0.0 0 0 ? SWN Dec17 0:00 [ksoftirqd_CPU0]
root 4 0.0 0.0 0 0 ? SW Dec17 0:28 [kswapd]
root 5 0.0 0.0 0 0 ? SW Dec17 0:00 [bdflush]
root 6 0.0 0.0 0 0 ? SW Dec17 0:03 [kupdated]
root 26 0.0 0.0 0 0 ? SW Dec17 0:00 [kreiserfsd]
bin 78 0.0 0.0 1116 52 ? S Dec17 0:00 /sbin/portmap
root 90 0.0 0.0 1424 256 ? S Dec17 0:00 /usr/sbin/syslogd
root 92 0.0 0.0 1972 228 ? S Dec17 0:00 /usr/local/sbin/sshd
root 95 0.0 0.0 1152 144 ? S Dec17 0:00 /usr/sbin/klogd -c 1
named 116 0.0 0.0 2456 244 ? S Dec17 0:02 /usr/sbin/named -u named -g named
at 120 0.0 0.0 1224 148 ? S Dec17 0:00 /usr/sbin/atd
root 172 0.0 0.0 5068 232 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLroot 173 0.0 0.0 1384 228 ? S Dec17 0:00 /usr/sbin/inetd
wwwrun 200 0.0 0.1 5132 388 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 201 0.0 0.1 5120 360 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 202 0.0 0.1 5132 392 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 203 0.0 0.1 5136 364 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 204 0.0 0.1 5132 392 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLnews 205 0.0 0.4 5740 1252 ? S Dec17 0:00 /usr/local/news/bin/innd -p4 -a
news 206 0.0 0.0 1772 128 ? S Dec17 0:00 /bin/sh /usr/local/news/bin/rc.news
news 217 0.0 0.0 1552 56 ? SN Dec17 0:00 /usr/local/news/bin/crosspost
news 218 0.0 0.0 1548 56 ? SN Dec17 0:00 /usr/local/news/bin/overchan
daemon 221 0.0 0.0 1964 184 ? S Dec17 0:00 lpd Waiting
root 241 0.0 0.0 1120 248 ? S Dec17 0:00 /usr/sbin/crond
root 249 0.0 0.1 2948 416 ? S Dec17 0:00 sendmail: accepting connections
fax 258 0.0 0.0 2240 160 ? S Dec17 0:00 /usr/local/sbin/faxq
fax 260 0.0 0.0 2572 156 ? S Dec17 0:00 /usr/local/sbin/hfaxd -i hylafax
squid 266 0.0 0.0 3876 160 ? S< Dec17 0:00 /usr/sbin/squid -sYD
squid 268 0.0 0.4 9744 1156 ? S< Dec17 0:04 (squid) -sYD
squid 269 0.0 0.0 1068 76 ? S Dec17 0:00 (unlinkd)
root 280 0.0 0.0 28484 196 ? S Dec17 0:00 /sbin/junkbuster /etc/junkbuster/config
root 286 0.0 0.0 1380 160 ? S Dec17 0:00 /usr/sbin/rpc.kmountd
root 287 0.0 0.0 0 0 ? SW Dec17 0:00 [nfsd]
root 288 0.0 0.0 0 0 ? SW Dec17 0:00 [lockd]
root 289 0.0 0.0 0 0 ? SW Dec17 0:00 [rpciod]
root 293 0.0 0.1 1548 292 ? S Dec17 0:00 /usr/sbin/timed -M -t -n maya.org -F localhost
root 294 0.0 0.0 1072 56 tty1 S Dec17 0:00 /sbin/mingetty --noclear tty1
root 295 0.0 0.0 1072 56 tty2 S Dec17 0:00 /sbin/mingetty tty2
root 296 0.0 0.0 1072 56 tty3 S Dec17 0:00 /sbin/mingetty tty3
root 297 0.0 0.0 1072 56 tty4 S Dec17 0:00 /sbin/mingetty tty4
root 298 0.0 0.0 1072 56 tty5 S Dec17 0:00 /sbin/mingetty tty5
root 299 0.0 0.0 1072 56 tty6 S Dec17 0:00 /sbin/mingetty tty6
news 321 0.0 0.2 1800 568 ? S Dec17 0:10 /bin/sh /usr/local/news/bin/innwatch
wwwrun 454 0.0 0.1 5120 444 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 455 0.0 0.1 5132 452 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 456 0.0 0.1 5136 452 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 457 0.0 0.1 5132 452 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLwwwrun 458 0.0 0.1 5132 452 ? S Dec17 0:00 /usr/sbin/httpd -f /etc/httpd/httpd.conf -D SSLroot 576 0.0 0.0 28484 196 ? S Dec17 0:00 /sbin/junkbuster /etc/junkbuster/config
root 12482 0.1 0.1 3368 444 ? S 12:29 0:04 /usr/local/sbin/sshd
ausgang 12484 0.0 0.0 1904 148 ? S 12:29 0:00 bash -c export KDEDIR=/opt/kde-2.2 && export PAausgang 12490 0.2 0.3 16364 828 ? S 12:29 0:06 /opt/kde-2.2/bin/kppp -c 01019 freenet ohne Optroot 12491 0.0 0.0 15060 116 ? S 12:29 0:00 /opt/kde-2.2/bin/kppp -c 01019 freenet ohne Optausgang 12608 0.0 0.3 6600 812 ? S 12:30 0:01 /opt/kde.1.1.2/bin/ktail
ausgang 12612 0.0 0.6 17760 1640 ? S 12:30 0:01 konsole -vt_sz 60x18 -e /usr/local/bin/tail -f
ausgang 12633 0.0 0.1 17468 296 ? S 12:30 0:00 kdeinit: dcopserver --nosid --suicide
ausgang 12636 0.0 0.1 17916 312 ? S 12:30 0:00 kdeinit: klauncher
ausgang 12639 0.0 0.2 17820 668 ? S 12:30 0:00 kdeinit: kded
ausgang 12643 0.0 0.0 17240 228 ? S 12:30 0:00 kdeinit: Running...
ausgang 12644 0.0 0.0 1232 100 pts/0 S 12:30 0:00 /usr/local/bin/tail -f /usr/local/news/log/newsroot 13324 0.3 0.2 3028 636 ? S 12:55 0:05 /usr/local/sbin/sshd
root 13327 9.2 32.1 83892 82544 ? S 12:55 2:45 rsync --server --sender -vbulogDtpr --delete --root 13333 0.0 0.2 3056 716 ? S 12:55 0:01 /usr/local/sbin/sshd
andreas 13337 0.0 0.3 2116 860 pts/1 S 12:55 0:00 -bash
andreas 13343 0.0 0.3 2528 792 pts/1 S 12:55 0:00 xosview
news 13711 0.0 0.1 1184 432 ? S 13:16 0:00 sleep 600
andreas 13718 0.0 0.4 2756 1100 pts/1 R 13:24 0:00 ps -aux
free
total used free shared buffers cached
Mem: 256516 252152 4364 0 140560 6632
-/+ buffers/cache: 104960 151556
Swap: 131504 65552 65952
backup server
ps -aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 1324 472 ? S Dec17 0:04 init [3]
root 2 0.0 0.0 0 0 ? SW Dec17 0:00 [keventd]
root 3 0.0 0.0 0 0 ? SWN Dec17 0:00 [ksoftirqd_CPU0]
root 4 0.0 0.0 0 0 ? SW Dec17 0:13 [kswapd]
root 5 0.0 0.0 0 0 ? SW Dec17 0:00 [bdflush]
root 6 0.0 0.0 0 0 ? SW Dec17 0:10 [kupdated]
root 7 0.0 0.0 0 0 ? SW Dec17 0:00 [kreiserfsd]
root 70 0.0 0.0 0 0 ? SW Dec17 0:00 [eth1]
root 82 0.0 0.1 1636 664 ? S Dec17 0:00 /usr/sbin/syslogd
root 86 0.0 0.0 1376 400 ? S Dec17 0:00 /usr/sbin/klogd -c 1
at 111 0.0 0.0 1436 492 ? S Dec17 0:00 /usr/sbin/atd
root 116 0.0 0.1 1600 532 ? S Dec17 0:00 /usr/sbin/inetd
root 127 0.0 0.1 2564 712 ? S Dec17 0:00 /usr/local/sbin/sshd
daemon 148 0.0 0.1 2204 568 ? S Dec17 0:00 lpd Waiting
root 166 0.0 0.0 1332 504 ? S Dec17 0:00 /usr/sbin/crond
root 167 0.0 0.1 2620 824 ? S Dec17 0:00 sendmail: accepting connections
root 183 0.0 0.1 2268 556 tty1 S Dec17 0:00 login -- root
root 185 0.0 0.0 1280 380 tty3 S Dec17 0:00 /sbin/mingetty tty3
root 186 0.0 0.0 1280 380 tty4 S Dec17 0:00 /sbin/mingetty tty4
root 187 0.0 0.0 1280 380 tty5 S Dec17 0:00 /sbin/mingetty tty5
root 188 0.0 0.0 1280 380 tty6 S Dec17 0:00 /sbin/mingetty tty6
root 893 0.0 0.1 2588 764 tty1 S 00:03 0:00 -bash
root 9011 0.0 0.1 2268 568 tty2 S 00:26 0:00 login -- root
root 22092 0.0 0.1 2656 764 tty2 S 07:58 0:00 -bash
root 2505 0.0 0.1 3896 560 tty2 S 08:02 0:00 mc
root 2506 0.0 0.0 1280 296 ? S 08:02 0:00 cons.saver /dev/tty2
root 2507 0.0 0.1 2656 760 pts/0 S 08:02 0:00 bash -rcfile .bashrc
root 4322 0.0 0.1 1768 640 ? S 08:04 0:00 /usr/sbin/timed -t -n maya.org
root 4328 0.0 0.1 2296 548 ? S 08:04 0:00 /opt/kde-2.2/bin/kdm -debug 1
bin 5251 0.0 0.0 1336 308 ? S 09:51 0:00 /sbin/portmap
root 5256 0.0 0.0 1488 444 ? S 09:51 0:00 /usr/sbin/rpc.kmountd
root 5259 0.0 0.0 0 0 ? SW 09:51 0:00 [rpciod]
root 5260 0.0 0.0 0 0 ? SW 09:51 0:00 [lockd]
root 7034 2.5 1.6 52776 8508 ? S 12:17 1:44 /usr/X11R6/bin/X -auth /var/lib/xdm/authfiles/Aroot 7035 0.0 0.1 3088 772 ? S 12:17 0:00 -:0
root 7046 0.0 0.2 3528 1096 ? S 12:17 0:00 /usr/X11R6/bin/xconsole -geometry 480x130-0-0 -andreas 7054 0.0 0.1 2188 680 ? S 12:18 0:00 /bin/sh /usr/X11R6/bin/kde-cvs
andreas 7068 0.0 0.1 2192 680 ? S 12:18 0:00 /bin/sh /opt/kde-2.2/bin/startkde
andreas 7078 0.0 0.6 17496 3552 ? S 12:18 0:00 kdeinit: Running...
andreas 7081 0.0 0.7 17416 3672 ? S 12:18 0:00 kdeinit: dcopserver --nosid
andreas 7084 0.0 0.8 18888 4616 ? S 12:18 0:00 kdeinit: klauncher
andreas 7087 0.0 0.9 18592 4764 ? S 12:18 0:00 kdeinit: kded
andreas 7100 0.0 0.9 21648 5092 ? S 12:18 0:00 kdeinit: knotify
andreas 7101 0.0 0.6 13256 3440 ? S 12:18 0:00 ksmserver --restore
andreas 7102 0.0 1.3 20308 6692 ? S 12:18 0:03 kdeinit: kwin
andreas 7105 0.0 0.9 19688 5000 ? S 12:18 0:00 kdeinit: kwrited
andreas 7106 0.0 0.9 19520 5116 ? S 12:18 0:00 kdeinit: khotkeys
andreas 7108 0.0 1.6 21808 8636 ? S 12:18 0:01 kdeinit: kdesktop
andreas 7109 0.0 0.0 1636 464 pts/1 S 12:18 0:00 /bin/cat
andreas 7113 0.0 0.4 18416 2140 ? S 12:18 0:00 kwikdisk
andreas 7114 0.0 0.8 22080 4608 ? S 12:18 0:03 kdeinit: kicker
andreas 7119 0.0 0.5 19404 2860 ? S 12:18 0:00 kdeinit: klipper -icon klipper -miniicon klippeandreas 7120 0.2 1.9 21244 9916 ? S 12:18 0:11 kdeinit: konsole -icon konsole -miniicon konsolandreas 7121 0.0 0.1 2628 904 pts/2 S 12:18 0:00 /bin/bash
andreas 7129 0.8 0.1 2224 848 pts/2 S 12:18 0:35 top
andreas 7131 0.0 0.1 2188 680 ? S 12:18 0:00 /bin/sh /usr/local/mozilla/mozilla.sh -mail
andreas_ 7133 0.0 0.1 2276 680 ? S 12:18 0:00 /bin/sh /usr/local/mozilla/run-mozilla.sh /usr/andreas_ 7138 2.4 5.6 60220 29132 ? S 12:18 1:39 /usr/local/mozilla/mozilla-bin -mail
andreas_ 7140 0.0 5.6 60220 29132 ? S 12:18 0:00 /usr/local/mozilla/mozilla-bin -mail
andreas_ 7141 0.0 5.6 60220 29132 ? S 12:18 0:00 /usr/local/mozilla/mozilla-bin -mail
andreas_ 7142 0.0 5.6 60220 29132 ? S 12:18 0:00 /usr/local/mozilla/mozilla-bin -mail
andreas 7253 0.0 0.1 2192 680 ? S 12:29 0:00 /bin/sh /usr/local/bin/internet
andreas 7255 0.0 0.2 3404 1056 ? S 12:29 0:01 ssh ausgang@susi.maya.org export KDEDIR=/opt/kdandreas_ 7403 0.0 0.6 16916 3208 ? S 12:40 0:00 kdeinit: Running...
andreas_ 7406 0.0 0.5 17432 2600 ? S 12:40 0:00 kdeinit: dcopserver --nosid --suicide
andreas_ 7409 0.0 0.5 18316 3020 ? S 12:40 0:00 kdeinit: klauncher
andreas_ 7412 0.0 0.9 19324 5104 ? S 12:40 0:00 kdeinit: kded
andreas_ 7420 0.0 0.9 18608 4824 ? S 12:40 0:00 kdeinit: kcookiejar
andreas_ 7422 0.0 0.4 12396 2348 ? S 12:40 0:00 kdesud
andreas_ 7469 0.0 0.7 17720 3912 ? S 12:48 0:00 kdeinit: kio_http http /tmp/ksocket-andreas_n/kandreas_ 7471 0.0 0.7 17732 3912 ? S 12:48 0:00 kdeinit: kio_http http /tmp/ksocket-andreas_n/kandreas_ 7477 0.0 0.7 17728 3912 ? S 12:48 0:00 kdeinit: kio_http http /tmp/ksocket-andreas_n/kandreas_ 7482 0.0 0.7 17724 3912 ? S 12:49 0:00 kdeinit: kio_http http /tmp/ksocket-andreas_n/kandreas_ 7495 0.0 0.7 17704 3812 ? S 12:51 0:00 kdeinit: kio_http http /tmp/ksocket-andreas_n/kandreas_ 7496 0.0 0.7 17704 3812 ? S 12:51 0:00 kdeinit: kio_http http /tmp/ksocket-andreas_n/kandreas_ 7497 0.0 0.7 17704 3812 ? S 12:51 0:00 kdeinit: kio_http http /tmp/ksocket-andreas_n/kroot 7502 0.0 0.1 2688 960 pts/5 S 12:54 0:00 bash
root 7528 0.0 0.1 2688 1016 pts/5 S 12:55 0:00 bash
root 7529 5.1 12.8 157752 65852 pts/5 D 12:55 1:37 rsync --delete --ignore-errors -e ssh -avub --eroot 7530 0.1 0.1 3168 680 pts/5 S 12:55 0:02 ssh susi rsync --server --sender -vbulogDtpr --andreas 7533 0.4 0.3 3140 1556 pts/6 S 12:55 0:07 ssh susi.maya.org
andreas 7563 0.0 0.2 2720 1340 ? S 13:10 0:00 xosview +n
andreas_ 7590 0.0 5.6 60220 29132 ? S 13:18 0:00 /usr/local/mozilla/mozilla-bin -mail
andreas 7591 0.0 0.2 2484 1112 ? S 13:18 0:00 imapd
andreas 7604 0.1 0.3 2628 1580 pts/3 S 13:25 0:00 /bin/bash
andreas 7612 0.0 0.2 2180 1032 pts/3 S 13:25 0:00 /bin/sh /usr/bin/e VM
andreas 7613 0.7 0.3 4200 1940 pts/3 S 13:25 0:00 mcedit VM
andreas 7615 0.3 0.3 2628 1580 pts/7 S 13:26 0:00 /bin/bash
andreas 7624 0.0 0.2 3116 1284 pts/7 R 13:27 0:00 ps -aux
free
total used free shared buffers cached
Mem: 514368 509964 4404 0 322136 27468
-/+ buffers/cache: 160360 354008
Swap: 208836 135324 73512
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2001-12-18 13:09 [2.4.17rc1] Swapping Andreas Hartmann
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