Ok, I think I remember this discussion: http://gluster.org/pipermail/gluster-users/2012-February/009590.html
Is this patch applied in future versions? Is it in general safe for me to use? On Thu, Mar 1, 2012 at 9:09 AM, Anand Avati <[email protected]> wrote: > On Fri, Feb 24, 2012 at 3:23 PM, Bryan Whitehead <[email protected]> > wrote: > > How long does it take for gluster volume set performance.io-thread-count > 64 > > (as an example) to propagate? > > > > I've noticed that it seems like mounted volumes don't get the performance > > boost until i restart glusterd on the boxes. Is this wrong? Should I > just be > > more patient? > > > > (note: I'm using infiniband and raid-10; "set performance.io-thread-count > > 64" makes writes go from ~70MB/sec to ~200MB/sec). > > > > > the io-thread-count parameter is a configuration of the maximum number > of threads (not the fixed number of threads). The actual number of > threads scale up with the number of active (sys)calls in transit > (today logarithmically, but we're making it more effective, closer to > linear) with io-thread-count acting as a cap. > > Thanks, > Avati >
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