I have a server holding a 2.5-4.0 load level consistently, where should I start debugging it?
top - 13:32:01 up 167 days, 5:45, 6 users, load average: 2.87, 1.83, 1.51 Tasks: 111 total, 1 running, 110 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0% us, 0.0% sy, 0.2% ni, 99.8% id, 0.0% wa, 0.0% hi, 0.0% si Mem: 895728k total, 871996k used, 23732k free, 190612k buffers Swap: 1802232k total, 216k used, 1802016k free, 63776k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 16 0 4756 556 460 S 0 0.1 0:35.34 init 2 root RT 0 0 0 0 S 0 0.0 0:02.83 migration/0 3 root 34 19 0 0 0 S 0 0.0 0:27.27 ksoftirqd/0 4 root RT 0 0 0 0 S 0 0.0 0:05.03 migration/1 5 root 34 19 0 0 0 S 0 0.0 0:22.88 ksoftirqd/1 6 root 5 -10 0 0 0 S 0 0.0 0:03.15 events/0 7 root 5 -10 0 0 0 S 0 0.0 0:01.98 events/1 8 root 5 -10 0 0 0 S 0 0.0 0:00.00 khelper 9 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/0 10 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/1 11 root 15 0 0 0 0 S 0 0.0 0:00.00 khubd 66 root 15 0 0 0 0 S 0 0.0 0:16.14 pdflush 67 root 15 0 0 0 0 S 0 0.0 2:30.44 kswapd0 68 root 15 -10 0 0 0 S 0 0.0 0:00.00 aio/0 69 root 5 -10 0 0 0 S 0 0.0 0:00.00 aio/1 213 root 22 0 0 0 0 S 0 0.0 0:00.00 kseriod 450 root 5 -10 0 0 0 S 0 0.0 0:00.00 ata/0 451 root 5 -10 0 0 0 S 0 0.0 0:00.00 ata/1 452 root 6 -10 0 0 0 S 0 0.0 0:00.00 ata_aux 456 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0 457 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1 465 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2 466 root 15 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_3 494 root 15 0 0 0 0 S 0 0.0 4:03.36 kjournald 542 root 16 0 24192 596 416 S 0 0.1 0:36.55 ypbind 595 root 15 0 0 0 0 S 0 0.0 0:00.00 rpciod 596 root 18 0 0 0 0 S 0 0.0 0:00.00 lockd 775 apache 15 0 185m 40m 3628 S 0 4.6 0:00.59 httpd 1832 root 5 -10 0 0 0 S 0 0.0 0:00.00 kedac 1904 root 16 0 10828 1072 856 S 0 0.1 0:00.00 pppd 1973 root 6 -10 0 0 0 S 0 0.0 0:00.00 kauditd 1998 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_4 1999 root 15 0 0 0 0 S 0 0.0 3:10.72 usb-storage 2176 root 15 0 0 0 0 S 0 0.0 0:00.01 kjournald 3070 root 15 0 3632 552 440 S 0 0.1 1:08.11 syslogd 3074 root 15 0 2540 372 296 S 0 0.0 0:00.04 klogd 3087 root 16 0 2552 300 200 S 0 0.0 0:30.06 irqbalance 3155 root 15 0 2916 488 256 S 0 0.1 0:00.97 smartd 3215 root 15 0 8716 776 612 S 0 0.1 0:00.00 xinetd 3293 root 16 0 40836 2672 984 S 0 0.3 1:07.23 sendmail 3303 smmsp 16 0 33504 2108 812 S 0 0.2 0:00.99 sendmail 3313 root 16 0 4180 324 244 S 0 0.0 0:00.00 gpm 3323 root 16 0 175m 35m 9064 S 0 4.0 0:13.24 httpd 3332 root 16 0 57092 976 560 S 0 0.1 0:50.01 crond 3353 xfs 16 0 10020 1472 756 S 0 0.2 0:00.17 xfs
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