I was looking into what was running on my CentOS 5.1 server and was wondering what services I can kill that are not needed. By eliminating unwanted processes wouldn't this speed up the server? For instance, kpsmoused, I'm not even using a mouse or keyboard or monitor on my server, I putty into it, so what would like to do is kill and then prevent it from running again. How can this be accomplished?
What processes do you want to kill as i think kpsmoused is a kernel process killing it could make your system unstable
Here is a list of the running processes I am not sure what I can eliminate could you assist please? # top top - 10:40:36 up 2 days, 14:24, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 80 total, 3 running, 77 sleeping, 0 stopped, 0 zombie Cpu(s): 0.3%us, 0.3%sy, 0.0%ni, 99.0%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st Mem: 1033584k total, 1000072k used, 33512k free, 168172k buffers Swap: 2031608k total, 64k used, 2031544k free, 686020k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 21259 root 15 0 2172 996 792 R 0.3 0.1 0:00.05 top 1 root 15 0 2040 588 508 S 0.0 0.1 0:00.77 init 2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 5 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 events/0 6 root 16 -5 0 0 0 S 0.0 0.0 0:00.00 khelper 7 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 kthread 10 root 10 -5 0 0 0 S 0.0 0.0 0:00.02 kblockd/0 11 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid 89 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/0 92 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khubd 94 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kseriod 153 root 15 0 0 0 0 S 0.0 0.0 0:09.55 pdflush 154 root 15 0 0 0 0 S 0.0 0.0 0:04.58 pdflush 155 root 10 -5 0 0 0 S 0.0 0.0 0:05.99 kswapd0 156 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 aio/0 305 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kpsmoused 328 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 ata/0 329 root 17 -5 0 0 0 S 0.0 0.0 0:00.00 ata_aux 332 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_0 333 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_1 334 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_2 345 root 16 -5 0 0 0 S 0.0 0.0 0:00.00 ksnapd 348 root 10 -5 0 0 0 S 0.0 0.0 0:16.55 kjournald 380 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 kauditd 414 root 21 -4 2944 1432 384 S 0.0 0.1 0:00.75 udevd 1209 root 16 -5 0 0 0 S 0.0 0.0 0:00.00 kmpathd/0 1232 root 17 -5 0 0 0 S 0.0 0.0 0:00.00 kjournald 1740 root 14 -3 12076 684 488 S 0.0 0.1 0:00.25 auditd 1742 root 12 -3 10096 3972 2308 S 0.0 0.4 0:00.53 python 1761 root 15 0 10080 8652 432 S 0.0 0.8 0:00.08 restorecond 1776 root 18 0 1700 632 536 S 0.0 0.1 0:00.29 syslogd 1779 root 18 0 1656 404 336 S 0.0 0.0 0:00.02 klogd 1814 root 15 0 2140 584 388 S 0.0 0.1 0:01.39 mcstransd 1836 rpc 19 0 1788 556 464 S 0.0 0.1 0:00.00 portmap 1854 root 15 0 42428 11m 5096 S 0.0 1.1 0:21.60 setroubleshootd 1879 root 24 0 1804 728 628 S 0.0 0.1 0:00.00 rpc.statd 1923 root 15 0 5392 580 280 S 0.0 0.1 0:00.00 rpc.idmapd 1950 dbus 18 0 12960 1180 912 S 0.0 0.1 0:00.02 dbus-daemon 1966 root 25 0 2128 756 656 S 0.0 0.1 0:00.00 hcid 1972 root 25 0 1724 500 428 S 0.0 0.0 0:00.00 sdpd 1991 root 9 -10 0 0 0 S 0.0 0.0 0:00.00 krfcommd 2041 root 25 0 12696 1324 580 S 0.0 0.1 0:03.55 pcscd 2064 root 25 0 1888 448 368 S 0.0 0.0 0:00.00 hidd 2083 root 25 0 9356 1124 884 S 0.0 0.1 0:00.11 automount 2106 root 18 0 1648 516 440 S 0.0 0.0 0:00.00 acpid 2136 root 17 0 6144 1028 664 S 0.0 0.1 0:00.03 sshd 2151 root 15 0 9688 2092 1448 S 0.0 0.2 0:00.02 cupsd 2167 root 24 0 2684 840 672 S 0.0 0.1 0:00.01 xinetd 2216 root 18 0 1876 468 392 S 0.0 0.0 0:00.00 gpm 2231 root 18 0 5236 1196 652 S 0.0 0.1 0:00.88 crond 2258 xfs 18 0 3436 1304 752 S 0.0 0.1 0:00.00 xfs top - 10:40:50 up 2 days, 14:24, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 80 total, 3 running, 77 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.1%sy, 0.0%ni, 99.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 1033584k total, 1000072k used, 33512k free, 168172k buffers Swap: 2031608k total, 64k used, 2031544k free, 686020k cached
i cant remember if its like "init 3" to drop down to an command line on the box itself exit the Xserver simple frees up memory and CPU use so it can be used for other stuff also run the setup and see what services are running that you dont need always see what they do before turning them off if you not sure init 0 : goes thru the /etc/rc0.d/* scripts then halts ( note halt these days also syncs first ) init 1: goes to single user - no need for sync init 2; multi user init 3: mult user plus network init 4: user defined init 5: as init 0, but with power off ( or as init 0 when on domains in a starfire ) init 6: as 0 or 5, but reboots so 0, 5, 6, and halt all do a sync or two. shutdown also call halt which calls sync. note that you can suppy flags to shutdown/halt to not sync if thats what you want. http://www.sunmanagers.org/pipermail/summaries/2002-September/002368.html
