On 7 February 2014 00:51, Dave Chinner <david@xxxxxxxxxxxxx> wrote: > On Thu, Feb 06, 2014 at 06:29:11PM +0200, Sergey Meirovich wrote: >> On 5 February 2014 16:52, Sergey Meirovich <rathamahata@xxxxxxxxx> wrote: >> > Hi Christoph, >> > >> > Thanks a lot! Applied your patches on top of 3.13.1 and they indeed >> > make a huge difference. >> > >> > >> > Append AIO >> > >> > chunk size w/o patches with patches >> > =================================================== >> > 4k 6.8834 Mb/sec 1762.15 IOps 31.542 Mb/sec 8074.75 IOps >> > 8k 15.321 Mb/sec 1961.12 IOps 62.873 Mb/sec 8047.71 IOps >> > 16k 28.257 Mb/sec 1808.46 IOps 139.35 Mb/sec 8918.45 IOps >> >> And with simple wrapper around io_submit() difference for 4 k is even >> more impressive than with sysbench: >> >> without patches: >> ===================== >> bandwidth (MiB/s): 11.89 >> IOps: 3044.58 >> >> with patches: >> ===================== >> bandwidth (MiB/s): 118.16 >> IOps: 30250.17 > > Thanks for providing numbers, Sergey. It's clear that we need to > make this change from them. Can I add a "Tested-by: Sergey Meirovich > <rathamahata@xxxxxxxxx>" to the patches? Sure, Dave. Please do. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
