Le 31 mai 2011 ` 00:15, Paul de Weerd a icrit : > 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... >
well, compared to my previous box, running NetBSD/xen, the same services and showing about 0.3-0.6 of load ; I thought a load of 1.21 was quite much. > Do you see a lot of interrupts perhaps ? Try `systat -s1 vm` or > `vmstat -i`. # vmstat -i interrupt total rate irq0/clock 9709553 199 irq0/ipi 1291416 26 irq144/acpi0 1 0 irq145/inteldrm0 9 0 irq96/uhci0 117 0 irq98/ehci0 2 0 irq97/azalia0 1 0 irq101/wpi0 1 0 irq101/bge0 366615 7 irq96/ehci1 20 0 irq101/ahci0 332349 6 irq147/pckbc0 6 0 irq148/pckbc0 38 0 Total 11700128 240 > > 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 > | > > -- >> ++++++++[<++++++++++>-]<+++++++.>+++[<------>-]<.>+++[<+ > +++++++++++>-]<.>++[<------------>-]<+.--------------.[-] > http://www.weirdnet.nl/
