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Old 12-21-2006, 07:43 PM   #1
tripmix
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Full swap make my box super slow


My swap disk seem to fill up way to fast making everything superslow. I have 1G ram and 1G swap. After only one day up my swap is full and it's not clearing when I kill apps useing alot of memory.
I tried "swapoff -a" to clear it but it gives me this error "swapoff: /dev/sda2: Cannot allocate memory" I don't know what that means, I guess it means it has no place to put the swap data.
Any way I could force it to use like only 90% of may swap space? Or would that cause the same slowdown? And when I say slow I mean so slow I can't even move the mouse pointer or type.
I have computers whit less ram and smaller swap and this do not happen to them.
 
Old 12-21-2006, 08:19 PM   #2
frob23
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You shouldn't be swapping at all if you can avoid it. What programs are eating this much memory?
 
Old 12-21-2006, 08:24 PM   #3
Tinkster
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Quote:
Originally Posted by tripmix
My swap disk seem to fill up way to fast making everything superslow. I have 1G ram and 1G swap. After only one day up my swap is full and it's not clearing when I kill apps useing alot of memory.
I tried "swapoff -a" to clear it but it gives me this error "swapoff: /dev/sda2: Cannot allocate memory" I don't know what that means, I guess it means it has no place to put the swap data.
Any way I could force it to use like only 90% of may swap space? Or would that cause the same slowdown? And when I say slow I mean so slow I can't even move the mouse pointer or type.
I have computers whit less ram and smaller swap and this do not happen to them.
Impossible to tell anything with the information you provide; what
tasks are you running, what does top say? Which tasks were running
(and hogging virtual memory *before* you 'closed all programs'?


Cheers,
Tink
 
Old 12-21-2006, 08:32 PM   #4
tripmix
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Thats part of the problem, I don't know.
Now I'm running xorg, kde, firefox, konquror, amule and azureus. These are the only ones that seem to use alot of memory. And there is a stupid exe file called beagel something, don't know what that is. I also run apache2 mythtv mysql but they don't seem to be useing alot of memory.

Here is output from "ps u -A"
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 6120 84 ? S Dec20 0:02 init [2]
root 2 0.0 0.0 0 0 ? S Dec20 0:00 [migration/0]
root 3 0.0 0.0 0 0 ? SN Dec20 0:00 [ksoftirqd/0]
root 4 0.0 0.0 0 0 ? S Dec20 0:00 [watchdog/0]
root 5 0.0 0.0 0 0 ? S Dec20 0:06 [migration/1]
root 6 0.0 0.0 0 0 ? SN Dec20 0:00 [ksoftirqd/1]
root 7 0.0 0.0 0 0 ? S Dec20 0:00 [watchdog/1]
root 8 0.0 0.0 0 0 ? S< Dec20 0:00 [events/0]
root 9 0.0 0.0 0 0 ? S< Dec20 0:00 [events/1]
root 10 0.0 0.0 0 0 ? S< Dec20 0:00 [khelper]
root 11 0.0 0.0 0 0 ? S< Dec20 0:00 [kthread]
root 15 0.0 0.0 0 0 ? S< Dec20 0:06 [kblockd/0]
root 16 0.0 0.0 0 0 ? S< Dec20 0:00 [kblockd/1]
root 17 0.0 0.0 0 0 ? S< Dec20 0:00 [kacpid]
root 142 0.0 0.0 0 0 ? S< Dec20 0:00 [khubd]
root 185 0.0 0.0 0 0 ? S< Dec20 0:00 [aio/0]
root 184 0.0 0.0 0 0 ? D Dec20 0:54 [kswapd0]
root 186 0.0 0.0 0 0 ? S< Dec20 0:00 [aio/1]
root 784 0.0 0.0 0 0 ? S< Dec20 0:00 [kseriod]
root 1725 0.0 0.0 0 0 ? S< Dec20 0:00 [ata/0]
root 1726 0.0 0.0 0 0 ? S< Dec20 0:00 [ata/1]
root 1736 0.0 0.0 0 0 ? S< Dec20 0:00 [scsi_eh_0]
root 1737 0.0 0.0 0 0 ? S< Dec20 0:00 [scsi_eh_1]
root 1745 0.0 0.0 0 0 ? S< Dec20 0:00 [scsi_eh_2]
root 1746 0.0 0.0 0 0 ? S< Dec20 0:00 [scsi_eh_3]
root 1747 0.0 0.0 0 0 ? S< Dec20 0:00 [scsi_eh_4]
root 1748 0.0 0.0 0 0 ? S< Dec20 0:00 [scsi_eh_5]
root 2146 0.0 0.0 0 0 ? S Dec20 0:11 [kjournald]
root 2351 0.0 0.0 11480 12 ? S<s Dec20 0:00 udevd --daemon
root 3244 0.0 0.0 0 0 ? S< Dec20 0:00 [kpsmoused]
root 3288 0.0 0.0 0 0 ? S< Dec20 0:00 [ivtv_vbi/0]
root 3289 0.0 0.0 0 0 ? S< Dec20 0:00 [ivtv_vbi/1]
root 3388 0.0 0.0 0 0 ? S< Dec20 0:00 [msp34xx]
root 3413 0.0 0.0 0 0 ? S< Dec20 0:00 [ivtv-enc]
root 3414 0.0 0.0 0 0 ? S< Dec20 0:00 [ivtv-enc-vbi]
root 3425 0.0 0.0 0 0 ? S< Dec20 0:00 [ivtv-dec-vbi]
root 3424 0.0 0.0 0 0 ? S< Dec20 0:00 [ivtv-dec]
root 3739 0.0 0.0 0 0 ? S Dec20 0:34 [lirc_dev]
root 3791 0.0 0.0 0 0 ? S< Dec20 0:00 [kmirrord]
root 3844 0.0 0.0 0 0 ? S Dec20 0:03 [kjournald]
root 3846 0.0 0.0 0 0 ? S Dec20 0:08 [kjournald]
root 3848 0.0 0.0 0 0 ? S Dec20 0:00 [kjournald]
daemon 4208 0.0 0.0 4816 4 ? Ss Dec20 0:00 /sbin/portmap
root 4558 0.0 0.0 6760 224 ? Ss Dec20 0:00 /sbin/syslogd
root 4575 0.0 0.0 2652 76 ? Ss Dec20 0:00 /sbin/klogd -x
root 4588 0.0 0.0 9428 16 ? Ss Dec20 0:00 /usr/sbin/lircd --device=/dev/lirc0
root 4622 0.0 0.0 10108 16 ? S Dec20 0:00 /bin/sh /usr/bin/mysqld_safe
mysql 4659 0.0 0.3 149068 4036 ? Sl Dec20 0:12 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/
root 4660 0.0 0.0 2636 12 ? S Dec20 0:00 logger -p daemon.err -t mysqld_safe -i -t mysqld
root 4778 0.0 0.0 2652 196 ? Ss Dec20 0:00 /usr/sbin/acpid -c /etc/acpi/events -s /var/run/acpid.socket
root 4812 0.0 0.0 31836 28 ? Ss Dec20 0:00 /usr/sbin/cupsd
103 4869 0.0 0.0 9520 24 ? Ss Dec20 0:00 /usr/bin/dbus-daemon --system
110 4883 0.0 0.0 24308 792 ? Ss Dec20 0:03 /usr/sbin/hald
root 4884 0.0 0.0 11268 28 ? S Dec20 0:00 hald-runner
110 4890 0.0 0.0 9264 12 ? S Dec20 0:00 hald-addon-acpi: listening on acpid socket /var/run/acpid.socket
110 4897 0.0 0.0 9264 12 ? S Dec20 0:00 hald-addon-keyboard: listening on /dev/input/event2
110 4901 0.0 0.0 9268 80 ? S Dec20 0:02 hald-addon-keyboard: listening on /dev/input/event1
root 4913 0.0 0.0 4948 56 ? S Dec20 0:08 hald-addon-storage: polling /dev/hdb
root 4941 0.0 0.0 9944 156 ? Ss Dec20 0:03 /usr/bin/dirmngr --daemon --sh
100 4999 0.0 0.0 26472 100 ? Ss Dec20 0:00 /usr/sbin/exim4 -bd -q30m
lp 5051 0.0 0.0 10060 12 ? Ss Dec20 0:00 /usr/sbin/lpd -s
root 5075 0.0 0.0 8940 8 ? Ss Dec20 0:00 /usr/sbin/inetd
root 5089 0.0 0.0 28764 612 ? Ss Dec20 0:02 /usr/sbin/nmbd -D
root 5091 0.0 0.0 40572 340 ? Ss Dec20 0:00 /usr/sbin/smbd -D
root 5096 0.0 0.0 40572 8 ? S Dec20 0:00 /usr/sbin/smbd -D
statd 5167 0.0 0.0 7884 12 ? Ss Dec20 0:00 /sbin/rpc.statd
ntp 5187 0.0 0.0 18164 480 ? Ss Dec20 0:04 /usr/sbin/ntpd -p /var/run/ntpd.pid -u 109:112 -g
root 5198 0.0 0.0 36468 840 ? Ss Dec20 0:01 /usr/bin/perl /usr/share/webmin/miniserv.pl /etc/webmin/miniserv.conf
daemon 5219 0.0 0.0 9048 36 ? Ss Dec20 0:00 /usr/sbin/atd
root 5233 0.0 0.0 11496 212 ? Ss Dec20 0:00 /usr/sbin/cron
root 5354 0.0 0.0 2652 12 tty2 Ss+ Dec20 0:00 /sbin/getty 38400 tty2
root 5355 0.0 0.0 2648 12 tty3 Ss+ Dec20 0:00 /sbin/getty 38400 tty3
root 5356 0.0 0.0 2652 12 tty4 Ss+ Dec20 0:00 /sbin/getty 38400 tty4
root 5357 0.0 0.0 2648 12 tty5 Ss+ Dec20 0:00 /sbin/getty 38400 tty5
root 5358 0.0 0.0 2652 12 tty6 Ss+ Dec20 0:00 /sbin/getty 38400 tty6
root 2129 0.0 0.0 55864 12 ? Ss Dec20 0:00 gdm
root 2130 0.0 0.0 62436 100 ? S Dec20 0:02 gdm
root 2133 7.0 49.1 1263072 505476 tty7 SLs+ Dec20 152:17 /usr/X11R6/bin/X :0 -dpi 96 -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7
mythtv 2154 0.0 0.0 8576 16 ? Ss Dec20 0:00 /bin/sh /usr/bin/startkde
mythtv 2208 0.0 0.0 17812 76 ? Ss Dec20 0:01 /usr/bin/ssh-agent /usr/bin/dbus-launch --exit-with-session /usr/bin/startkde
mythtv 2211 0.0 0.0 9516 12 ? Ss Dec20 0:00 /usr/bin/dbus-daemon --fork --print-pid 4 --print-address 6 --session
mythtv 2212 0.0 0.0 7848 8 ? S Dec20 0:00 /usr/bin/dbus-launch --exit-with-session /usr/bin/startkde
root 2241 0.0 0.0 2496 72 ? S Dec20 0:00 start_kdeinit --new-startup +kcminit_startup
mythtv 2242 0.0 0.1 75500 1440 ? Ss Dec20 0:00 kdeinit Running...
mythtv 2245 0.0 0.1 77452 1448 ? S Dec20 0:08 dcopserver [kdeinit] --nosid
mythtv 2247 0.0 0.2 79892 2208 ? S Dec20 0:01 klauncher [kdeinit] --new-startup
mythtv 2249 0.8 0.3 145824 3544 ? S Dec20 17:55 kded [kdeinit] --new-startup
mythtv 2251 0.0 0.0 11408 664 ? S Dec20 0:00 /usr/lib/gamin/gam_server
mythtv 2256 0.0 0.0 2632 40 ? S Dec20 0:00 kwrapper ksmserver
mythtv 2258 0.0 0.1 84052 1448 ? S Dec20 0:15 ksmserver [kdeinit]
mythtv 2259 0.0 0.2 88840 2068 ? S Dec20 0:01 kwin [kdeinit] -session 10cae17562000116637974300000055400000_1166531861_179653 -d
mythtv 2260 0.1 0.5 100280 5368 ? S Dec20 3:51 kwin [kdeinit] -session 10cae17562000116637974300000055400001_1166531861_180026 -d
mythtv 2262 0.0 0.3 118172 3176 ? S Dec20 0:21 knotify [kdeinit]
mythtv 2267 0.0 0.5 94620 5200 ? S Dec20 0:32 /usr/bin/artsd -F 10 -S 4096 -s 60 -m artsmessage -l 3 -f
mythtv 2270 0.0 0.3 98404 3584 ? S Dec20 0:02 kdesktop [kdeinit]
mythtv 2272 0.1 0.3 95820 3524 ? S Dec20 2:47 kdesktop [kdeinit]
mythtv 2277 0.0 0.4 104556 4448 ? S Dec20 0:33 kicker [kdeinit]
mythtv 2278 0.1 0.7 121748 7384 ? S Dec20 3:45 kicker [kdeinit]
mythtv 2284 0.0 0.1 86420 1652 ? S Dec20 0:00 khotkeys [kdeinit]
mythtv 2285 0.0 0.2 86552 2160 ? S Dec20 0:52 khotkeys [kdeinit]
mythtv 2294 0.0 0.1 84928 1300 ? S Dec20 0:02 kaccess [kdeinit]
mythtv 2296 1.2 9.3 292804 96504 ? D Dec20 26:37 konqueror [kdeinit] -session 10cae17562000116638031000000055400019_1166531861_1518
mythtv 2297 2.0 0.5 94956 5216 ? S Dec20 43:36 superkaramba -session 10cae17562000116653134600000055260014_1166531861_151926 -dis
mythtv 2300 0.0 0.9 125988 9696 ? Sl Dec20 0:23 beagled /usr/lib/beagle/BeagleDaemon.exe --bg
mythtv 2305 0.0 0.2 88068 2252 ? S Dec20 0:05 klipper [kdeinit]
mythtv 2307 0.0 0.3 107072 3156 ? S Dec20 0:01 korgac --miniicon korganizer
root 7413 0.0 0.0 25280 308 tty1 Ss Dec20 0:00 /bin/login --
mythtv 9012 6.5 0.6 407340 6468 ? SLl Dec20 141:02 /usr/bin/mythfrontend
mythtv 15922 0.0 0.3 93292 3920 ? S Dec20 0:07 kio_uiserver [kdeinit]
mythtv 23368 0.0 0.0 57368 20 ? S Dec20 0:00 /usr/bin/kdesud
mythtv 14879 0.0 0.2 230344 2936 ? Ssl Dec20 0:40 /usr/bin/mythbackend --daemon --logfile /var/log/mythtv/mythbackend.log --pidfile
mythtv 10323 0.0 0.0 13180 440 pts/1 Ss Dec20 0:00 /bin/sh
mythtv 17322 4.6 4.7 203876 49272 ? Sl Dec21 24:54 amule
root 24946 0.0 0.0 60876 108 ? Ss Dec21 0:00 /usr/sbin/apache2 -k start
www-data 24947 0.0 0.0 61008 276 ? S Dec21 0:00 /usr/sbin/apache2 -k start
www-data 24949 0.0 0.0 61008 464 ? S Dec21 0:00 /usr/sbin/apache2 -k start
www-data 24951 0.0 0.0 61008 280 ? S Dec21 0:00 /usr/sbin/apache2 -k start
www-data 24952 0.0 0.0 61008 236 ? S Dec21 0:00 /usr/sbin/apache2 -k start
www-data 24953 0.0 0.0 61008 240 ? S Dec21 0:00 /usr/sbin/apache2 -k start
www-data 18876 0.0 0.0 61008 296 ? S Dec21 0:00 /usr/sbin/apache2 -k start
www-data 24077 0.0 0.0 61008 348 ? S Dec21 0:00 /usr/sbin/apache2 -k start
root 27809 0.0 0.1 12612 1096 tty1 S+ 00:11 0:00 -bash
root 27976 0.0 0.0 0 0 ? S 00:11 0:00 [pdflush]
mythtv 25164 3.4 11.0 670036 113576 ? Sl 00:54 3:03 java -Xmx1024M -Djava.library.path=.:/usr/lib/jni:/usr/lib -classpath Azureus2.jar
root 27024 0.0 0.0 0 0 ? S 00:58 0:00 [pdflush]
mythtv 29024 3.5 7.1 287652 73212 ? Sl 01:01 2:55 /usr/lib/firefox/firefox-bin
mythtv 29145 0.0 0.1 24788 1212 ? S 01:01 0:00 /usr/lib/libgconf2-4/gconfd-2 10
root 31327 0.0 0.0 20256 540 pts/1 S 01:05 0:00 su
root 31369 0.0 0.1 12596 1412 pts/1 S 01:05 0:00 bash
mythtv 31438 0.0 0.2 83300 2712 ? S 01:52 0:00 kio_file [kdeinit] file /tmp/ksocket-mythtv/klauncherhEzSRb.slave-socket /tmp/ksoc
root 21240 0.0 0.1 10736 1060 pts/1 R+ 02:24 0:00 ps u -A

These lists allways get messed up when I post them so sorry.
 
Old 12-21-2006, 08:35 PM   #5
rufius
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Registered: Oct 2002
Location: Miami, FL
Distribution: Ubuntu
Posts: 184

Rep: Reputation: 30
You could decrease the swappiness of the system... its probably defaulting to 60. Check with the command:
Code:
cat /proc/sys/vm/swappiness
If its at 60, you can probably knock it down to 10, which is what I usually put it at. Use the following command to do so while the system is running:
Code:
sysctl -w vm.swappiness=10
Then you can set that permanently in /etc/sysctl.conf by adding the line at the bottom or wherever:
Code:
vm.swappiness=10
Hope that helps. Regards.
 
Old 12-21-2006, 08:37 PM   #6
tripmix
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Registered: Nov 2004
Location: Norway
Distribution: Debian mostly
Posts: 106

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Top output for the one that asked

Tasks: 133 total, 2 running, 131 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.8%us, 1.8%sy, 0.0%ni, 89.2%id, 3.8%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 1028688k total, 1013384k used, 15304k free, 3356k buffers
Swap: 979956k total, 979572k used, 384k free, 70720k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
17322 mythtv 15 0 199m 48m 6648 S 5 4.9 25:24.26 amule
2133 root 15 0 1290m 491m 2396 S 3 48.9 152:54.06 Xorg
2249 mythtv 18 0 142m 3744 1692 S 1 0.4 18:01.16 kded
2297 mythtv 16 0 94956 5208 3112 S 1 0.5 43:50.88 superkaramba
25164 mythtv 15 0 654m 113m 7092 S 1 11.3 3:20.58 java
1 root 16 0 6120 84 52 S 0 0.0 0:02.53 init
2 root RT 0 0 0 0 S 0 0.0 0:00.64 migration/0
3 root 34 19 0 0 0 S 0 0.0 0:00.14 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0
5 root RT 0 0 0 0 S 0 0.0 0:06.63 migration/1
6 root 34 19 0 0 0 S 0 0.0 0:00.33 ksoftirqd/1
7 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1
8 root 10 -5 0 0 0 S 0 0.0 0:00.21 events/0
9 root 10 -5 0 0 0 S 0 0.0 0:00.06 events/1
 
Old 12-21-2006, 08:41 PM   #7
tripmix
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Location: Norway
Distribution: Debian mostly
Posts: 106

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Set it to 10 like you said. I hope that helps. Thanks.
 
  


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