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Re: high load, no bottleneck
On Tue, Sep 17, 2013 at 12:54:59PM +0000, Emmanuel Dreyfus wrote:
> I have a NFS server that exhibit a high load (20-30) when supporting
> about 30 clients, while there is no apparent bottleneck: low disck
> activity, CPU idle most of the time, plenty of available RAM.
> Of course service is crapy, with many timouts. Any hint of what can be
> going on?
I found the bottleneck. ps does not show it because it happens within
the differen threads of nfsd. DDB tells me that almost all nfsd threads
are waiting on tstile with this backtrace:
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