Server :: Excessive Swap Usage From Setroubleshootd
Jul 21, 2011
Just noticed from the "top" command that one of my least heavily used box is swapping excessivly by a program called setroubleshootd. Following is the top section of the "top" command sorted by Swap used for both boxes. Also tried checking it out to see if there's a "service setroubleshootd restart" but when I checked the status I got the following.
Code:
[root]# service setroubleshootd status
setroubleshootd: unrecognized service
Lightly loaded box with lots of swapping
Code:
Tasks: 85 total, 2 running, 83 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 98.0%id, 1.7%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 1026880k total, 983528k used, 43352k free, 59604k buffers
Swap: 2064376k total, 355692k used, 1708684k free, 121996k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP COMMAND
3319 root 15 0 1202m 665m 5748 S 0.0 66.3 23:29.99 537m setroubleshootd
3845 root 34 19 253m 14m 2188 S 0.0 1.5 0:34.41 238m yum-updatesd
3841 gdm 16 0 216m 5300 4236 S 0.0 0.5 0:00.15 211m gdmgreeter
3822 root 18 0 190m 2208 1568 S 0.0 0.2 0:00.00 187m gdm-binary
3824 root 15 0 185m 3948 3236 S 0.0 0.4 0:00.11 181m gdm-rh-security
3725 root 16 0 163m 2532 1920 S 0.0 0.2 0:00.00 161m gdm-binary
3500 root 18 0 130m 2140 1240 S 0.0 0.2 0:00.00 128m cupsd
Heavily used box with little swapping
Code:
Tasks: 118 total, 4 running, 113 sleeping, 0 stopped, 1 zombie
Cpu(s): 4.7%us, 0.3%sy, 0.0%ni, 94.7%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 2059580k total, 1928356k used, 131224k free, 162032k buffers
Swap: 4095992k total, 12k used, 4095980k free, 1336632k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP COMMAND
3842 root 34 19 253m 17m 2196 S 0.0 0.9 0:34.20 235m yum-updatesd
3284 root 15 0 301m 77m 6004 S 0.0 3.9 2:23.30 223m setroubleshootd
3840 gdm 16 0 216m 16m 7064 S 0.0 0.8 0:00.43 199m gdmgreeter
3814 root 18 0 190m 2352 1644 S 0.0 0.1 0:00.00 187m gdm-binary
3816 root 15 0 185m 4112 3384 S 0.0 0.2 0:02.90 181m gdm-rh-security
3724 root 15 0 163m 2588 1976 S 0.0 0.1 0:00.00 161m gdm-binary
3465 root 18 0 141m 14m 1824 S 0.0 0.7 0:00.06 127m cupsd
12799 daemon 18 0 103m 3708 648 S 0.0 0.2 0:00.00 100m httpd
12396 daemon 15 0 112m 13m 3440 S 0.0 0.7 0:00.99 98m httpd
3556 root 18 0 103m 5260 2208 S 0.0 0.3 0:37.68 98m httpd
11778 daemon 15 0 117m 19m 3144 S 2.3 1.0 0:01.76 98m httpd
12750 daemon 15 0 106m 9096 2860 S 0.0 0.4 0:00.04 97m httpd
12673 daemon 15 0 110m 12m 2876 S 0.0 0.6 0:00.23 97m httpd
12693 daemon 15 0 110m 13m 2876 S 0.0 0.7 0:00.18 97m httpd
12666 daemon 15 0 105m 8132 2888 S 0.0 0.4 0:00.19 97m httpd
12729 daemon 15 0 112m 15m 2968 S 0.0 0.8 0:00.11 97m httpd
12588 daemon 15 0 110m 12m 2984 S 0.0 0.6 0:00.54 97m httpd
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Mar 2, 2009
For some reason, if I leave my Linux box running for several days, the swap space and RAM slowly fill up until my system is so slow that it takes around 15 seconds just to open a new tab if Firefox (Iceweasel, specifically). I have 512GB RAM and almost a gig of swap; how on earth does it fill up so much? Even if I close all my programs, there's still over 600MB swap used and all RAM is full. I've included a screenshot of 'top' running just about two minutes after I closed all my running programs.
(Before I closed it, I had only 71MB swap free.) I know that Linux is supposed to make good usage of RAM, but isn't this over the top? Is there a way to force it to use only required memory with no or little extras kept in RAM? Just thought I'd add in the fact that I'm running Xfce as opposed to KDE or GNOME in an attempt to have a smoother running system on my old hardware. Also, what's the "VIRT" column?
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May 11, 2011
I upgraded from Fedora 13 to 14 over the network. Everything seems to have worked. The one problem after my install is that I have noticed that setroubleshootd consumes alot of memory.
[Code]
It doesn't take long for setroubleshootd to jump in memory usage. I can kill the process but it will start up again. I have tried disabling the service but it doesn't show up in /etc/init.d. # service setroubledshootd stop setroubledshootd: unrecognized service So I am not sure what I can do to resolve the issue with setroubleshootd besides killing it off every 15 minutes.
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Dec 3, 2010
I am using a 790FX chipset with SB750 southbridge and running Mandriva 2010.0. The sata controller is running in AHCI mode with several harddisks attached. The problem I am having is that everytime I copy files from harddisk to harddisk or harddisk to usb flash drive, CPU usage goes to 100%. Could there be a problem with the ahci driver in this kernel version, something related to disk cache, or something simple I am overlooking?
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May 13, 2011
I have run into a problem with my desktop using roughly 50% RAM (w/o buffers or cache) while running a limited set of applications (fbterm, tmux, weechat, ncmpc, rtorrent) on the command line. This usage only increases roughly 5-10% when starting X (an addition of xcompmgr, awesome wm, zim, parcellite, 2x conky (one replacing root-tails functionality), plus firefox and other apps that may or may not be running from time to time). (h)top is reporting programs only using roughly .1-.2% per proccess and roughly 100 processes (current look at top shows 120 processes, only 32 of which are registering any usage over 0.0%) The RAM usage when in the console (which I will add is about 150MB after boot) is totally unreasonable and I need some direction on trying to find out what is using all of this RAM.
System:
Distro: Arch Linux
RAM: 2G
CPU: AMD 64 x2 4800+
HDD: 3x WD Black 750G (RAID 5 on partition 2 (swap) and 3 (root), RAID 1 on partition 1 (boot). LVM over root partition)
GPU: Nvidia 8400 GS
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Oct 2, 2009
I am running Apache 2.2.3 on a CentOS release 5.3 (Final) with 100 Sites. I've notice that Apache is making my server Swap around 200 MBs.
"http://www.xxx.yyy.zzz/server-status" doesn't show me too much to, so I am looking the behavior of specific httpd process.
ProcessID "18753" is the one for "http://www.xxx.yyy.zzz/server-status" in my browser.
This command show me (In KBs) how much virtual memory is that specific process using:
# /etc/init.d/httpd start
# grep Private_Dirty /proc/18753/smaps | awk '{ print $2 }' | xargs ruby -e 'puts ARGV.inject { |i, j| i.to_i + j.to_i }'
3012
... Running this command a lot of times it gives me the same output, but suddenly...
# grep Private_Dirty /proc/18753/smaps | awk '{ print $2 }' | xargs ruby -e 'puts ARGV.inject { |i, j| i.to_i + j.to_i }'
21708
Something make that process (and all the others httpd process too) to use a lot more memory!
Part of my httpd.conf:
# Timeout 120
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 3
<IfModule prefork.c>
StartServers 5
MinSpareServers 5
MaxSpareServers 20
ServerLimit 256
MaxClients 256
MaxRequestsPerChild 100
</IfModule>
<IfModule worker.c>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule> #
My server is running Mysql 5.1.34, vsftpd 2.0.5, BIND 9.3.4-P1 (as slave). I couldn't found anything running in the specific time that httpd processes start to use that much memory.
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Dec 18, 2009
My monitor tools indicate that the percentage of swap used is more than the ideal , so I want to calculate which process is consuming from the swap. I tried the following but it didn't help be 100%
#ps -eo vsz,rss,pid,args | sort -n
How to accurately calculate which process consuming from swap, just the swap no ram + swap!
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Jan 10, 2011
On one of my servers the "free" command tells me that a lot of swap space are in use. What I'd like to do is to determine which processes have been swapped out. I tried issuing "top" and sort by the "swap" column, but this doesn't seem to provide correct values - when performing the same excersize on another server with close to no pages swapped out, the sum when adding the swap value for each process greatly exceeds the swap usage reported by "free". So how do I go about determining the swap space used for individual processes?
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Dec 10, 2010
Nagios had alerted me that the server had a very high load average exceeding the critical level (17+), when logging onto the server I found that all 4GB of the swap was in use despite the fact that there was 15GB+ of free memory (and that's not even including memory from cache and buffers!) Because it seems all heavily used pages were being stored in swap, the I/O wait on the server became very high, and 4 kswapd daemons were taking up nearly 100% available CPU. This did coincide with an error reported by Bacula during a backup job while changing to a bad tape...
From /var/log/bacula.log:
Code:
10-Dec 02:11 bacula-sd JobId 1898: End of medium on Volume "4097" Bytes=434,170,000,000 Blocks=217,084 at 10-Dec-2010 02:11.
10-Dec 02:11 bacula-sd JobId 1898: 3307 Issuing autochanger "unload slot 4097, drive 0" command.
10-Dec 02:12 bacula-sd JobId 1898: 3301 Issuing autochanger "loaded? drive 0" command.
10-Dec 02:12 bacula-sd JobId 1898: 3302 Autochanger "loaded? drive 0", result: nothing loaded.
10-Dec 02:12 bacula-sd JobId 1898: 3304 Issuing autochanger "load slot 4096, drive 0" command.
10-Dec 02:13 bacula-sd JobId 1898: 3305 Autochanger "load slot 4096, drive 0", status is OK.
10-Dec 02:13 bacula-sd JobId 1898: Volume "4096" previously written, moving to end of data.
10-Dec 03:51 bacula-sd JobId 1898: Error: Unable to position to end of data on device "Tape-1" (/dev/IBMtape0n): ERR=dev.c:1384 read e
rror on "Tape-1" (/dev/IBMtape0n). ERR=Input/output error.
10-Dec 03:51 bacula-sd JobId 1898: Marking Volume "4096" in Error in Catalog.
10-Dec 03:51 bacula-sd JobId 1898: 3307 Issuing autochanger "unload slot 4096, drive 0" command.
10-Dec 03:58 bacula-sd JobId 1898: 3301 Issuing autochanger "loaded? drive 0" command.
10-Dec 03:58 bacula-sd JobId 1898: 3302 Autochanger "loaded? drive 0", result: nothing loaded.
10-Dec 03:58 bacula-sd JobId 1898: 3304 Issuing autochanger "load slot 4098, drive 0" command.
10-Dec 03:58 bacula-sd JobId 1898: 3305 Autochanger "load slot 4098, drive 0", status is OK.
10-Dec 03:59 bacula-sd JobId 1898: Wrote label to prelabeled Volume "4098" on device "Tape-1" (/dev/IBMtape0n)
10-Dec 03:59 bacula-sd JobId 1898: New volume "4098" mounted on device "Tape-1" (/dev/IBMtape0n) at 10-Dec-2010 03:59.
At the same time, these messages starting occuring in /var/log/messages:
Code:
Dec 10 03:51:47 07 kernel: Mem-info:
Dec 10 03:51:47 07 kernel: Node 0 DMA per-cpu:
Dec 10 03:51:47 07 kernel: cpu 0 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 0 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 1 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 1 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 2 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 2 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 3 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 3 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 4 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 4 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 5 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 5 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 6 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 6 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 7 hot: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: cpu 7 cold: high 0, batch 1 used:0
Dec 10 03:51:47 07 kernel: Node 0 DMA32 per-cpu:
Dec 10 03:51:47 07 kernel: cpu 0 hot: high 186, batch 31 used:162
Dec 10 03:51:47 07 kernel: cpu 0 cold: high 62, batch 15 used:48
Dec 10 03:51:47 07 kernel: cpu 1 hot: high 186, batch 31 used:0
Dec 10 03:51:47 07 kernel: cpu 1 cold: high 62, batch 15 used:0
Dec 10 03:51:47 07 kernel: cpu 2 hot: high 186, batch 31 used:0
Dec 10 03:51:47 07 kernel: cpu 2 cold: high 62, batch 15 used:0
Dec 10 03:51:47 07 kernel: cpu 3 hot: high 186, batch 31 used:18
Dec 10 03:51:47 07 kernel: cpu 3 cold: high 62, batch 15 used:0
Dec 10 03:51:47 07 kernel: cpu 4 hot: high 186, batch 31 used:159
Dec 10 03:51:47 07 kernel: cpu 4 cold: high 62, batch 15 used:56
...
Dec 10 03:51:47 07 kernel: Node 3 HighMem per-cpu: empty
Dec 10 03:51:47 07 kernel: Free pages: 732052kB (0kB HighMem)
Dec 10 03:51:47 07 kernel: Active:4232128 inactive:3071288 dirty:158210 writeback:0 unstable:0 free:183320 slab:256840 mapped-file:289545 mapped-anon:3805487 pagetables:13063
Dec 10 03:51:47 07 kernel: Node 0 DMA free:10796kB min:4kB low:4kB high:4kB active:0kB inactive:0kB present:10356kB pages_scanned:0 all_unreclaimable? yes
Dec 10 03:51:47 07 kernel: lowmem_reserve[]: 0 3512 9067 9067
Dec 10 03:51:47 07 kernel: Node 0 DMA32 free:213332kB min:2500kB low:3124kB high:3748kB active:1794108kB inactive:1463220kB present:3596296kB pages_scanned:64 all_unreclaimable? no
Dec 10 03:51:47 07 kernel: lowmem_reserve[]: 0 0 5555 5555
Dec 10 03:51:47 07 kernel: Node 0 Normal free:41028kB min:3952kB low:4940kB high:5928kB active:3409444kB inactive:1471120kB present:5688320kB pages_scanned:0 all_unreclaimable? no
Dec 10 03:51:47 07 kernel: lowmem_reserve[]: 0 0 0 0
Dec 10 03:51:47 07 kernel: Node 0 HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Dec 10 03:51:47 07 kernel: lowmem_reserve[]: 0 0 0 0
Dec 10 03:51:47 07 kernel: Node 1 DMA free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
...
Well to cut a long story short, I fixed the problem by disabling the swap partition with 'swapoff'. After about 30 mins all the swap was freed and the server went back to normal. I don't dare reactivate the swap partition and unfortunately as this is a live server which currently has no fail over, I can't reboot either
Server Spec:
4 * Dual-Core AMD Opteron(tm) Processor 8214
32GB DDR2 ECC RAM
RHEL 5.5, 2.6.18-194.11.3.el5 SMP x86_64
Running many KVM VMs (All CentOS x64) and kksmd is used.
bacula-dir Version: 5.0.0
IBM Tape Drive using lin_tape module version 1.34.0 according to modinfo
And before anybody asks
# sysctl vm.swappiness
vm.swappiness = 10
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Nov 29, 2010
I'm using slackware about a month now and two days ago I checked to see the usage of my RAM and I saw that there was no swap, no used, no total, nothing! (how can this be?) swap -s returned nothing, I checked fstab and there was swap there so I entered the line about swap:
"UUID=6ea9269a-6bf7-4486-b481-a54dd3bde314 none swap sw 0 0"
I believe it' s correct. I checked after restart with "free" and the total was ok but used is 0. I copied about 5 GB to see what would happen and still nothing. RAM was nearly full but still no swap used!
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May 13, 2011
We have several clusters used for high performance computing. The cluster nodes have 48GB memory and on each there is 2GB swap available. What I would like to avoid is the usage of swap as long as there is enough free memory or empty the swap as soon as there is a free memory. I thought that this could be achieved by setting the swapiness to 0, but although it helped a bit, it still didn't solve the problem completely. Even with swapiness set to 0, my memory usage looks like this:
total used free shared buffers cached
Mem: 48264 35534 12730 0 19 99
-/+ buffers/cache: 35416 12848
Swap: 2055 1286 768
So the system is using ~1.2GB of swap even if there's ~12.7GB free memory.
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Mar 13, 2010
I have a netbook and one of the suggested optimizations was to reduce the use of swap.I've noticed on my desktop and conventional laptop that it is quite usual for the swap file to be used even when memory usage is low (25% of available memory).I'm looking for some advise on the best way to set up a conventional desktop or laptop as my understanding is that the use of a swap file will slow the system responsiveness down. Can I use a version of the above to improve performance and reduce swap usage?
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Aug 21, 2010
How to reduce the cached swap from the server?
[root@CMS-UAT ~]# free -m
total used free shared buffers cached
Mem: 7985 4146 3839 0 3 2300
-/+ buffers/cache: 1842 6143
Swap: 12479 4721 7758
[root@CMS-UAT ~]#
My server is showing swap usage of 4.7 GB.
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Jan 1, 2011
I have Ubuntu 10.04 installed on my PC with 1GB of RAM and 3GB of Swap partition. But the machine gets hung or reboots itself when the usage is even marginally higher. This is the output of "free -m" for Swap:
Swap: 2908 11 2897
I have tried increasing the swappiness to 80, and this not made any difference. I believe the RAM is taking up all the load and none of the pages are going in to the swap. Hence the slow response and the frequent hung system. I know this is an old PC but Windows XP (installed on another HDD) runs way better on the same configuration.
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May 31, 2011
No matter what I do, the SWAP usage remains zero all the time. Is there anything I am missing? In the following case (see attached screenshot) I am running make on the kernel that I downloaded. The CPU usage is understandable. But what is the use of Swap when its never used. [URL]. I am on Kubuntu natty. My partitions are as follows:
Kamesh@Galaxy:~$ sudo fdisk -l
[sudo] password for:
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x88fa88fa
Device Boot Start End Blocks Id System
/dev/sda1 * 1 9615 77232456 7 HPFS/NTFS
/dev/sda2 9616 19458 79056897 5 Extended
/dev/sda5 9616 18960 75057152 83 Linux
/dev/sda6 18960 19458 3998720 82 Linux swap / Solaris
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Feb 7, 2011
There is squid 3.1.8 on a Fedora 12 server with 2 GB of RAM. It is used for sharing the Internet for approximatively 80 PC's. The problem is that it is really a memory hog, when enabling delay pools. I am using the following configuration for the memory pools:
Code:
delay_pools 1
delay_class 1 2
delay_access 1 allow drumuri
[code]....
There are moments when the squid process uses approximatively all the RAM and goes into swapping. After that I restart it, it goes well for a while and again eats up all the memory. On the Internet it says that Squid uses a lot of memory, but should it use 2 GB of memory, even if all 80 people are online at the same time?
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Mar 9, 2011
I was trying to have a go at installing MAC on my dell alongside Ub and W7. I copied the grub2 to the first part of my sda5 so as to put the mac loader in MBR.I have since repaired grub2 back to MBR.But now my beloved Ubuntu starts up then continuosly increases RAM usage till 90% then SWAP 90% even when no application is running!!
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Aug 6, 2009
OS: Fedora 11, x86_64.Are there means to nice the 'locate' processes setroubleshootd spawns?I am using Fedora 11 on a server with large number of files, SELinux is currently in permissive mode, and setroubleshootd periodically spawns processes running 'locate', it gobbles up CPU time.I haven't found any clues in setroubleshootd config file.Nothing in its logs, either.Is there a way to shut setroubleshootd in Fedora 11? There is no such service any more, and the way 'locate' works makes everything quite slow.
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Aug 6, 2010
I've come across a really strange issue with one of my RHEL servers. The "free" command shows that 7019 MB of memory are actually in use by my system, but when summing up the actual usage (or even virtual usage like the example below) it doesn't add up - the sum is far less than what is reported by "free":
Code:
[root@server1 ~]# free -m
total used free shared buffers cached
Mem: 12011 7946 4065 0 4 23
-/+ buffers/cache: 7919 4092
[code]....
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Mar 8, 2010
I upgraded via yum to 2.6.32.9-67 today and rebooted.
Running Google Picasa under wine is pretty much unusable. A quick reboot to the previous 2.6.31 kernel provided via the Fedora repositories previously solved my symptoms.
I don't think the problem is limited to Picasa but haven't done anything scientific to show what the problem could be.
Because I run on a trusty six year old laptop I visually monitor the system with the System Monitor applet. Usually slowness is i/o wait while the disk is retrieving information but on 2.6.32 it's pegged as system time eating up my CPU.
Before I report this in bugzilla, can anyone else tell me what their experiences with 2.6.32-9.67 have been?
Also, are there any fine-grained performance monitor tools that might explain what's going on to peg the CPU so high? top just shows Picasa running.. and it can be a hog doing background work at times. If it is, a reboot just continues the cpu needs not eliminates them as in my case.
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Nov 26, 2010
Just installed Fedora 14. My HDD LED is flickering constantly about 7x a second. This only happens after I start X-windows and continues if I log out. Top shows dbus-daemon at 15% CPU. I'm sure this is causing it as it only starts after X-windows.
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Feb 2, 2010
Last weekend i've set up my first headless ubuntu home file server and torrent downloader with ubuntu 9.10.Very cool but CPU is way too fast for a home server: P4 HT 2.8Ghz, unfortunatly it has only 256Mb of ram, so no X server and no VNC (old HP office pc) At the moment memory usage is only 40Mb without X server. Besides SSH works just fine Few questions i can't seem to find answers to on google:What is a good CL network monitoring program?mething similar to htopUbuntu 9.10 has a lot, about 20-30, console-kit deamon instanses running after boot each using some memory that i can't spare.
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Mar 15, 2011
When I ps -e, I see a whole bunch of processes, many more that when I ran Slackware.Is there a list of processess I can look at to see what they are and what ones I dont need, instead of googling each one and getting some cryptic explanation?
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Nov 23, 2010
I'm using Firefox 3.6.12 on Fedora 14 (64 bit) and have noticed that after using it for a while (and/or leaving the browser open for hours at a time), it becomes almost unusably slow and uses an excessive amount of memory. For example, any of the following can cause Firefox to temporarily (for 5 to 10 seconds or so) stop responding:
- clicking on a link
- opening or closing a tab
- scrolling
It will always start responding again, sometimes after the window darkens (to indicate that it's not responding) but it's so bad that it can't really be used. Closing it and opening it (restoring the tabs) again fixes it for a while, but the problem recurs. Regarding the memory usage, it was using 850MB (according to System Monitor) when I closed it, and having re-opened it and restored the tabs, it's now using under 200MB (but appears to be rising).
Another way that this manifests itself is that when trying to watch a Flash video (like iPlayer), it pauses for a second every 30 seconds or so, making it very annoying to watch them (I've switched to Chrome for this now, and am tempted to switch for general browsing, but like the plugins in Firefox).Is anyone else having these issues, and does anyone have any suggestions on how to fix it?
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Aug 17, 2011
At times, the disk I/O will go through the roof and cause the system to slow to a crawl. X becomes really slow and can go completely unresponsive, dropping all keyboard input, preventing me from restarting X. Sometimes I will switch to a virtual terminal to log in and run iotop to check what is using all the I/O, but it will be so I/O bound that the login times out. Sometimes I do manage to get in and can run iotop and then it is a matter of waiting 10 minutes or so for python to load up. Usually by this time, whatever was causing the slowdown has finished and so I don't even know what the problem is. Other times it never recovers (I once left it over night, since it was at the end of my work day and just went home)
This is my work computer so it is very inconvenient to have to wait for this I/O blockage or lose all my work rebooting. I thought it was due to swapping, so I disabled swap, but that hasn't helped. I'm running the cfq I/O scheduler, but I've tried both deadline and noop.
Also, is there a way to disable the login timeout so I can at least get logged in to the box from the console when this happens?
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Mar 20, 2011
Does one need to Check the Swap filesystem, from time to time
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Dec 7, 2010
Lucid on an Acer Travelmate800.Can anyone tell me why I have 0k for swap space? I allocated swap which I can see in my Disk Utility's 'volumes' display.
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Feb 9, 2009
After having used fc5 for years, I installed fc10 in order to be able to run the newest versions of some of my tools. Under fc5, my monitor (Dell 2407FPW) and adapter (ATI Technologies Inc RV380) have happily coexisted at 1920x1200 76Hz. During the fc10 install, the monitor flickered a few times, then settled down (an auto-detect by the installation?) Now, after installation is complete, if I display a window with a lot of small text, the text is nearly unreadable because of horizontal jitter. If I move the window part-way off-screen, so that there is less small text on-screen, the jitter is somewhat reduced.
My hunch was that the installation got the ModeLine settings wrong, but when I went to edit /etc/X11/xorg.conf, I couldn't find it. I also ran a case-insensitive search for any file containing "ModeLine", starting in /etc, but nothing turned up except /etc/prelink.cache, a binary file.
I tried running Computer/SystemSettings/Display, but every time I do this, the monitor immediately goes into sleep mode, and nothing will recover it out except an X11 reboot (Ctrl-Alt-Backspace).
Is there any way to tweak the display settings other than the gui ("Display") program?
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Jan 3, 2010
I have a truecrypt partition on an nvidia fakeraid raid0.ore there is no data recognizeable to ubuntu's kernel on startup and I think it is causing a big slowdown for me every time I boot up, which takes over ten minutes every time. Attached are bootchart results.What I would like to do is know how to remove dmraid from the startup process. I can't find any scripts in /etc/rc*.d and all of the information I can find on these forums is about how to enable dmraid on boot, not disable it.
Manually using dmraid takes nearly no time at all, which is what I did before this kernel upgrade since ubuntu didn't put dmraid in the startup process. I can't see why it takes dmraid ten minutes to detect raid devices now! The only clue I can see is that in the startup process with the splash screen disabled it talks about examining inodes on both drives in the array and then goes on to spit out stuff about raid 0, raid1, raid2, raid3, raid4 and on and on so it seems like it is loading raid arrays that don't exist and never have.If any bootchart gurus have any advice, please feel free to throw me a bone, I am in fear of restarting!edit: for some reason ubuntuforums shrank my images so that they are unreadable by anybody except those with a large projector.
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Apr 13, 2010
I view my /var/log/maillog and see tons of lines like this code...
I think those are some kind of SMTP attacks from this host by I tried to block hit with Iptables but it seemes to peace them off and they keep coming...!
please some kind of postfix-configuration solution?
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