Messages in this thread | | | From | Hank Janssen <> | Subject | RE: [PATCH 5/6] staging: hv: Increased storvsc ringbuffer and max_io_requests | Date | Wed, 4 Aug 2010 03:23:09 +0000 |
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>>And than Greg KH spoke these words: >>On Tue, Aug 03, 2010 at 05:31:55PM +0000, Hank Janssen wrote: > >From: Hank Janssen <hjanssen@microsoft.com> > > > >Increased storvsc ringbuffer and max_io_requests. This now more > >closely mimics the numbers on Hyper-V. > >What do you mean by this? The max provided by the hypervisor?
Max_IO is set to double from what it was before, Hyper-V allows it and We have had appliance builder requests to see if it was a problem to increase The number.
Ringbuffer size for storvsc is now increased because I have seen A few buffer problems on extremely busy systems. They where Set pretty low before. And since max_io_requests is increased I Really needed to increase the buffer as well.
>> And will allow more IO requests to take place for the SCSI driver. > >Which means what, better throughput? Or just more outstanding requests and the same speed overall?
It means better throughput of high load systems, else you get buffer Contention.
Thanks,
Hank.
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