[Lustre-discuss] bad 1.6.3 striped write performance

[Nicholas Henke]

Andrei Maslennikov wrote:
> Andreas, here are some numbers obtained against a file striped over 3 OSTs
> (there were 8 cores; only 3 of them had any visible load, so I quote the
> CPU usage only for these cores):
> 
> 1) 1.6.3 client checksums enabled: 35 MB/sec
>             ldlm_poold: all the time 85-100%,
>             ptlrpcd: 15-23%
>             dd: from 85% down gradually to 4-6%
> 

Any chance you can run oprofile for the 1.6.3 case? It'd (hopefully) 
show where ldlm_poold is spinning.

Nic