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Date: Fri, 16 Nov 2012 09:08:40 +0100 From: Bart Van Assche <bvanassche@....org> To: Jeff Moyer <jmoyer@...hat.com> CC: linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org Subject: Re: [patch,v3 00/10] make I/O path allocations more numa-friendly On 11/09/12 20:17, Jeff Moyer wrote: > This patch set makes memory allocations for data structures used in > the I/O path more numa friendly by allocating them from the same numa > node as the storage device. I've only converted a handful of drivers > at this point. My testing showed that, for workloads where the I/O > processes were not tied to the numa node housing the device, a speedup > of around 6% was observed. When the I/O processes were tied to the > numa node of the device, there was no measurable difference in my test > setup. Given my relatively low-end setup[1], I wouldn't be surprised > if others could show a more significant performance advantage. > > Comments would be greatly appreciated. Sorry but I'm not familiar with any of the SCSI LLDs modified via this patch series. But I'm fine with the SCSI core patches in this series. So if you want you can add the following to the first five patches in this series: Reviewed-by: Bart Van Assche <bvanassche@....org> Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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