[Lustre-discuss] OST threads

[Andreas Dilger]

Yes, this can be set at startup time to limit the number of started threads. There is a patch I wrote to also reduce the number of running treads but it wasn't landed yet. 

Cheers, Andreas

On 2011-02-24, at 14:04, "Mervini, Joseph A" <jamervi at sandia.gov> wrote:

> I'm inclined to agree. So apparently the only time that modifying the runtime max values has a benefit is while the threads_started is low?
> 
> Joe
> ====
> 
> Joe Mervini
> Sandia National Laboratories
> High Performance Computing
> 505.844.6770
> jamervi at sandia.gov
> 
> 
> 
> On Feb 24, 2011, at 1:09 PM, Kevin Van Maren wrote:
> 
>> However, I don't think you can decrease the number of running threads.
>> See https://bugzilla.lustre.org/show_bug.cgi?id=22417 (and also 
>> https://bugzilla.lustre.org/show_bug.cgi?id=22516 )
>> 
>> Kevin
>> 
>> 
>> Mervini, Joseph A wrote:
>>> Cool! Thank you Johann.
>>> ====
>>> 
>>> Joe Mervini
>>> Sandia National Laboratories
>>> High Performance Computing
>>> 505.844.6770
>>> jamervi at sandia.gov
>>> 
>>> 
>>> 
>>> On Feb 24, 2011, at 11:05 AM, Johann Lombardi wrote:
>>> 
>>> 
>>>> On Thu, Feb 24, 2011 at 10:48:32AM -0700, Mervini, Joseph A wrote:
>>>> 
>>>>> Quick question: Has runtime modification of the number of OST threads been implemented in Lustre-1.8.3?
>>>>> 
>>>> Yes, see bugzilla ticket 18688. It was landed in 1.8.1.
>>>> 
>>>> Cheers,
>>>> Johann
>>>> 
>>>> -- 
>>>> Johann Lombardi
>>>> Whamcloud, Inc.
>>>> www.whamcloud.com
>>>> 
>>>> 
>>> 
>>> 
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>>> 
>> 
>> 
> 
> 
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