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josedimas n00b
Joined: 03 Feb 2005 Posts: 39 Location: São Carlos/Brasil
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Posted: Sun Mar 05, 2006 6:37 am Post subject: swap is not being used after changed to 2006.0 |
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Yesterday I intalled gentoo in my box and used 2006.0 release...
I followed the very same steps as always, checking the new handbook...
My memory usage used to be between 10-30% and now (using the same programs) it's always higher than 40, sometimes reaching more than 60%...
The reason seems to be since I reinstalled gentoo, the swap is not being used, and I don't know why!
It's mounted on a logical partition in a sata hd...
here's my fstab:
Code: | /dev/sda1 /boot reiserfs defaults,noatime 1 2
/dev/sda2 / reiser4 noatime 0 1
/dev/sda5 none swap sw 0 0
/dev/sda6 /usr reiser4 defaults 0 0
/dev/sda7 /var reiser4 defaults 0 0
/dev/sda8 /tmp reiser4 defaults 0 0
/dev/sda9 /home reiser4 defaults 0 0
/dev/cdrom /mnt/cdrom auto noauto,user 0 0
/dev/fd0 /mnt/floppy auto noauto,user 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs nodev,nosuid,noexec 0 0 |
Can someone give me some help, please?
I don't have any idea of how to solve this.
thx in advance! |
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Keruskerfuerst Advocate
Joined: 01 Feb 2006 Posts: 2289 Location: near Augsburg, Germany
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Posted: Sun Mar 05, 2006 8:18 am Post subject: |
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RAM is much faster than the swap space on the harddisk.
So why should memory swaped out on harddisk, when there is enough free memory in the RAM?
This is intended to be so. |
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Paapaa l33t
Joined: 14 Aug 2005 Posts: 955 Location: Finland
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Posted: Sun Mar 05, 2006 8:54 am Post subject: Re: swap is not being used after changed to 2006.0 |
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josedimas wrote: | My memory usage used to be between 10-30% and now (using the same programs) it's always higher than 40, sometimes reaching more than 60%... |
How are you measuring your memory usage? Could you post the output of the command? |
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josedimas n00b
Joined: 03 Feb 2005 Posts: 39 Location: São Carlos/Brasil
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Posted: Sun Mar 05, 2006 12:57 pm Post subject: |
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Code: | user@home ~ $ free
total used free shared buffers cached
Mem: 514368 447360 67008 0 12 207084
-/+ buffers/cache: 240264 274104
Swap: 1180736 260 118047 |
This '260' never changes no matter how many times I run 'free'
I know there's pretty much free RAM, the problem is, my pc is much slower than before, and this swap thing is the only reason I can imagine for the problem... And before that, even with low memory usage, the swap was always being working.
thanks! |
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Keruskerfuerst Advocate
Joined: 01 Feb 2006 Posts: 2289 Location: near Augsburg, Germany
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Posted: Sun Mar 05, 2006 7:30 pm Post subject: |
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Try to use "top" on console. |
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josedimas n00b
Joined: 03 Feb 2005 Posts: 39 Location: São Carlos/Brasil
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Posted: Mon Mar 06, 2006 4:07 pm Post subject: |
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Code: | top - 13:05:54 up 19 min, 2 users, load average: 0.58, 0.95, 0.58
Tasks: 67 total, 1 running, 66 sleeping, 0 stopped, 0 zombie
Cpu(s): 5.6% us, 1.3% sy, 0.0% ni, 92.7% id, 0.0% wa, 0.3% hi, 0.0% si
Mem: 514368k total, 505344k used, 9024k free, 52k buffers
Swap: 1180736k total, 0k used, 1180736k free, 334844k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6975 root 0 0 57416 33m 5596 S 3.7 6.8 1:20.38 X
5442 jdimas 0 0 87308 32m 14m S 1.7 6.5 0:10.56 firefox-bin
5404 jdimas 0 0 258m 52m 20m S 0.7 10.5 0:15.45 java
7023 jdimas 0 0 5248 2880 1716 S 0.3 0.6 0:03.68 conky
1 root 0 0 1464 508 448 S 0.0 0.1 0:00.62 init
2 root 0 19 0 0 0 S 0.0 0.0 0:00.16 ksoftirqd/0
3 root 0 -5 0 0 0 S 0.0 0.0 0:00.06 events/0
4 root 0 -5 0 0 0 S 0.0 0.0 0:00.00 khelper
5 root 0 -5 0 0 0 S 0.0 0.0 0:00.00 kthread
7 root 0 -5 0 0 0 S 0.0 0.0 0:00.09 kblockd/0
8 root 13 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid
98 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 khubd
166 root 0 0 0 0 0 S 0.0 0.0 0:00.20 pdflush
167 root 4 0 0 0 0 S 0.0 0.0 0:00.05 pdflush
169 root 39 19 0 0 0 S 0.0 0.0 0:00.00 kprefetchd
168 root 11 0 0 0 0 S 0.0 0.0 0:00.08 kswapd0
170 root 13 -5 0 0 0 S 0.0 0.0 0:00.00 aio/0 |
forgot to tell... now my box stops working quite often...
Today even the keyboard lights didn't work... had to reset
looks like its using to much resources to execute simple programs... |
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Paapaa l33t
Joined: 14 Aug 2005 Posts: 955 Location: Finland
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Posted: Tue Mar 07, 2006 11:46 am Post subject: |
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josedimas wrote: | forgot to tell... now my box stops working quite often...
Today even the keyboard lights didn't work... had to reset
looks like its using to much resources to execute simple programs... |
I don't think swap usage is a problem - there is no need to use swap (at all) if you have plenty of RAM available. (Linux might utilize swap if it thinks it needs more memory for cache). Sounds like you have some hardware problems going on. Check the CPU/Mobo temperature. Also test your memory for errors. Have you overclocked recently? |
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