High load becase of IO

[tincboy]

I'm experiencing high load on one of my servers with load about 10 on a core CPU,
As the CPU is almost idle I think it's because of IO but iostat -dm 2 or -dm 10 doesn't show useful data,
So anyone else know a better way to find process who cause this IO intensive load?

 

[meto]

I'm experiencing high load on one of my servers with load about 10 on a core CPU,
As the CPU is almost idle I think it's because of IO but iostat -dm 2 or -dm 10 doesn't show useful data,
So anyone else know a better way to find process who cause this IO intensive load?

Try "vmstat 5 30" and look at wa collumn.

 

[tincboy]

this is the out put after about 10 seconds
How can I find which VM is causing this high load?

procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
4 1 1348 2434040 3236 35368 0 0 115 130 12 8 15 14 66 5
15 1 1348 2416872 3584 37604 0 0 402 394 77833 170998 9 20 66 5
5 0 1348 2412664 3812 40164 0 0 306 460 78198 172145 9 20 68 3
1 0 1348 2408736 4016 42540 0 0 236 542 78129 171603 9 18 71 2
5 0 1348 2408016 4144 44300 0 0 193 358 78074 172347 8 18 73 2
3 0 1348 2401796 4532 47152 0 0 435 452 78109 171774 8 20 68 4
8 0 1348 2393224 4704 58284 0 0 2151 283 78312 170464 11 18 67 3
7 0 1348 2390512 4876 61276 0 0 580 286 77966 171410 9 18 72 2
7 0 1348 2391396 5016 62168 0 0 86 263 77662 171182 7 18 73 1
3 0 1348 2389512 5308 67452 0 0 1054 473 77808 170832 8 19 66 6
9 0 1348 2387412 5392 68768 0 0 138 210 77599 170606 9 19 72 1

 

[meto]

Oh sorry I misread your post. I think you can do that in atop but I'm not sure...