The best you can get on linux is sar -d.
> -----Original Message-----
> From: chao_ping [mailto:chao_ping_at_vip.163.com]
> Sent: Wednesday, January 22, 2003 2:39 AM
> To: Multiple recipients of list ORACLE-L
> Subject: off topic: iostat -x in linux
>
>
> oracledba??
> dba friends, do you know how to measure the io capacity
> usage(%busy) in linux server, like solaris:
>
> extended device statistics
> device r/s w/s kr/s kw/s wait actv svc_t %w %b
> sd6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
> sd9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
> sd10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
> ssd2 0.0 10.0 0.0 22.0 0.0 0.0 1.8 0 2
> ssd3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
> ssd4 51.0 0.0 408.0 0.0 0.0 0.5 10.1 0 41
> ssd5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
> nfs1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
> ^C
>
> In linux, it seems difficult, I have tried linux iostat
> and sysstat-iostat, non of them seems to work properly with
> util column in iostat report. Though no activity on the
> server at all, iostat always report utilization of the
> partitions 100% Why?
> I also searched google and found the same question asked
> by others, but nobody replied.
>
> Anyone have the same experience? How did you measure
> the load on the io subsystem in your linux server then? IO
> wait is still 0%, but io capacity usage is 100%. Confusing...
>
>
> avg-cpu: %user %nice %sys %iowait %idle
> 3.00 0.00 0.00 0.00 97.00
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s
> avgrq-sz avgqu-sz await svctm %util
> /dev/sda 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 42941682.96 0.00 0.00 100.00
> /dev/sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 42949662.96 0.00 0.00 100.00
> /dev/sda2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10.00
> 0.00 0.00 100.00
> /dev/sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 42949652.96 0.00 0.00 100.00
> /dev/sda5 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00
> /dev/sda6 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00
> /dev/sda7 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 42948232.96 0.00 0.00 100.00
>
> avg-cpu: %user %nice %sys %iowait %idle
> 2.00 0.00 0.50 0.00 97.50
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s
> avgrq-sz avgqu-sz await svctm %util
> /dev/sda 0.00 2.00 1.00 4.00 8.00 48.00 4.00 24.00 11.20
> 42941683.06 2.00 200.00 100.00
> /dev/sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 42949662.96 0.00 0.00 100.00
> /dev/sda2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10.00
> 0.00 0.00 100.00
> /dev/sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 42949652.96 0.00 0.00 100.00
> /dev/sda5 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00
> /dev/sda6 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00
> /dev/sda7 0.00 2.00 1.00 4.00 8.00 48.00 4.00 24.00 11.20
> 42948233.06 2.00 200.00 100.00
>
>
>
> Regards
> zhu chao
> msn:chao_ping_at_163.com
> www.happyit.net
> www.cnoug.org(China Oracle User Group)
>
>
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> Author: chao_ping
> INET: chao_ping_at_vip.163.com
>
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Received on Wed Jan 22 2003 - 10:14:12 CST
