On Mon, May 30, 2011 at 11:44:29PM +0200, Joel Carnat wrote:
| Hi,
|
| I am running a personal Mail+Web system on a Core2Duo 2GHz using Speedstep.
| It is mostly doing nothing but still has a high load average.
Wait, what ? ~1 is 'a high load average' now ? What are that
database and webserver doing on your machine 'doing nothing' ? What
other processes do you have running ? Note that you don't have to use
lots of CPU to get a (really) high load...
Do you see a lot of interrupts perhaps ? Try `systat -s1 vm` or
`vmstat -i`.
Paul 'WEiRD' de Weerd
| I've check various stat tools but didn't find the reason for the load.
|
| Anyone has ideas?
|
| TIA,
| Jo
|
| PS: here are some of the results I checked.
|
| # uname -a
| OpenBSD bagheera.tumfatig.net 4.9 GENERIC.MP#819 amd64
|
| # sysctl hw
| hw.machine=amd64
| hw.model=Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz
| hw.ncpu=2
| hw.byteorder=1234
| hw.pagesize=4096
| hw.disknames=cd0:,sd0:01d3664288919ae7
| hw.diskcount=2
| hw.sensors.cpu0.temp0=45.00 degC
| hw.sensors.cpu1.temp0=45.00 degC
| hw.sensors.acpitz0.temp0=45.50 degC (zone temperature)
| hw.sensors.acpiac0.indicator0=On (power supply)
| hw.sensors.acpibat0.volt0=11.10 VDC (voltage)
| hw.sensors.acpibat0.volt1=12.71 VDC (current voltage)
| hw.sensors.acpibat0.amphour0=4.61 Ah (last full capacity)
| hw.sensors.acpibat0.amphour1=0.52 Ah (warning capacity)
| hw.sensors.acpibat0.amphour2=0.16 Ah (low capacity)
| hw.sensors.acpibat0.amphour3=5.20 Ah (remaining capacity), OK
| hw.sensors.acpibat0.raw0=0 (battery full), OK
| hw.sensors.acpibat0.raw1=1 (rate)
| hw.cpuspeed=800
| hw.setperf=0
| hw.vendor=Dell Inc.
| hw.product=XPS M1330
| hw.serialno=CK0W33J
| hw.uuid=44454c4c-4b00-1030-8057-c3c04f33334a
| hw.physmem=3747008512
| hw.usermem=3734933504
| hw.ncpufound=2
|
| # top -n -o cpu -T
| load averages: 1.19, 1.14, 0.99 bagheera.tumfatig.net 23:39:09
| 78 processes: 77 idle, 1 on processor
| CPU0 states: 1.8% user, 0.0% nice, 0.7% system, 0.1% interrupt, 97.4%
| idle
| CPU1 states: 2.4% user, 0.0% nice, 0.8% system, 0.0% interrupt, 96.8%
| idle
| Memory: Real: 238M/656M act/tot Free: 2809M Swap: 0K/8197M used/tot
|
| PID USERNAME PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND
| 3230 root 2 0 2156K 3152K sleep/1 netio 0:00 0.20% sshd
| 1867 sshd 2 0 2148K 2368K sleep/0 select 0:00 0.05% sshd
| 19650 www 14 0 5640K 30M sleep/0 semwait 0:59 0.00% httpd
| 4225 www 14 0 5984K 42M sleep/1 semwait 0:58 0.00% httpd
| 3624 www 14 0 5644K 30M sleep/1 semwait 0:53 0.00% httpd
| 24875 www 14 0 5740K 32M sleep/1 semwait 0:52 0.00% httpd
| 22848 www 14 0 5724K 30M sleep/1 semwait 0:50 0.00% httpd
| 13508 www 14 0 5832K 31M sleep/1 semwait 0:48 0.00% httpd
| 24210 www 14 0 5652K 30M sleep/1 semwait 0:48 0.00% httpd
| 510 www 14 0 5660K 30M sleep/1 semwait 0:46 0.00% httpd
| 20258 www 2 0 5536K 32M sleep/0 select 0:46 0.00% httpd
| 6543 www 14 0 5772K 32M sleep/0 semwait 0:43 0.00% httpd
| 9783 _mysql 2 0 55M 30M sleep/1 poll 0:20 0.00% mysqld
| 19071 root 2 0 640K 1416K sleep/1 select 0:09 0.00% sshd
| 10389 root 2 0 3376K 2824K sleep/0 poll 0:07 0.00% monit
| 21695 _sogo 2 0 7288K 18M sleep/1 poll 0:05 0.00% sogod
| 1888 named 2 0 20M 21M sleep/1 select 0:05 0.00% named
| 18781 _sogo 2 0 15M 29M sleep/1 poll 0:04 0.00% sogod
|
| # iostat -c 10 -w 1
| tty cd0 sd0 cpu
| tin tout KB/t t/s MB/s KB/t t/s MB/s us ni sy in id
| 0 7 0.00 0 0.00 20.64 7 0.14 2 0 1 0 97
| 0 174 0.00 0 0.00 0.00 0 0.00 0 0 0 0100
| 0 57 0.00 0 0.00 0.00 0 0.00 1 0 2 0 97
| 0 57 0.00 0 0.00 32.00 17 0.53 1 0 1 0 98
| 0 58 0.00 0 0.00 0.00 0 0.00 7 0 7 0 86
| 0 57 0.00 0 0.00 0.00 0 0.00 1 0 1 0 98
| 0 57 0.00 0 0.00 0.00 0 0.00 1 0 1 0 98
| 0 57 0.00 0 0.00 0.00 0 0.00 2 0 0 0 98
| 0 57 0.00 0 0.00 4.00 1 0.00 0 0 1 0 99
| 0 58 0.00 0 0.00 0.00 0 0.00 1 0 0 1 98
|
| # vmstat -c 10 -w 1
| procs memory page disks traps cpu
| r b w avm fre flt re pi po fr sr cd0 sd0 int sys cs us sy
| id
| 1 1 0 243420 2866736 655 0 0 0 0 0 0 1 15 1828 77 2 1
| 97
| 0 1 0 243636 2866336 234 0 0 0 0 0 0 0 10 540 47 0 1
| 99
| 0 1 0 243668 2866304 95 0 0 0 0 0 0 0 17 329 44 1 0
| 99
| 0 1 0 242848 2867552 644 0 0 0 0 0 0 0 8 1445 115 1 1
| 98
| 0 1 0 243612 2866352 1076 0 0 0 0 0 0 0 9 2436 44 0 2
| 98
| 0 1 0 243668 2866288 117 0 0 0 0 0 0 0 7 369 46 1 1
| 98
| 0 1 0 243836 2866112 337 0 0 0 0 0 0 0 7 818 86 0 1
| 99
| 0 1 0 243428 2866728 1216 0 0 0 0 0 0 0 11 2920 69 1 2
| 97
| 0 1 0 243640 2866332 212 0 0 0 0 0 0 0 6 313 38 1 0
| 99
| 0 1 0 243684 2866284 96 0 0 0 0 0 0 0 8 334 48 1 0
| 99
|
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