[Lustre-discuss] The number of threads on OSS

Dilger, Andreas andreas.dilger at intel.com
Thu Mar 12 00:45:39 PDT 2015

On 2015/03/11, 9:03 PM, "teng wang" <tzw0019 at gmail.com<mailto:tzw0019 at gmail.com>> wrote:

Dear All,

What's the initial number of service threads on OSS? How does it
vary according to the workload? Is there any document for this?

This can be tuned by the module parameter "oss_num_threads" for the ost module, or via:

    lctl ost.OSS.{service}.threads_{min,max}=N

where {service} is one of ost, ost_io, ost_create, and "N" is the min or max number of threads.

Cheers, Andreas
Andreas Dilger
Lustre Software Architect
Intel High Performance Data Division

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