Date: Fri, 11 Oct 2013 14:25:07 -0500 From: Eric van Gyzen <eric@vangyzen.net> To: Maksim Yevmenkin <emax@freebsd.org> Cc: "current@freebsd.org" <current@freebsd.org> Subject: Re: [rfc] small bioq patch Message-ID: <52585093.1090609@vangyzen.net> In-Reply-To: <CAFPOs6pXhDjj1JTY0JNaw8g=zvtw9NgDVeJTQW-=31jwj321mQ@mail.gmail.com> References: <CAFPOs6pXhDjj1JTY0JNaw8g=zvtw9NgDVeJTQW-=31jwj321mQ@mail.gmail.com>
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Maksim, The graphs were not attached. Perhaps the list stripped them. Could you post them on the web instead? Thanks, Eric On 10/11/2013 01:17 PM, Maksim Yevmenkin wrote: > hello, > > i would like to submit the attached bioq patch for review and > comments. this is proof of concept. it helps with smoothing disk read > service times and arrear to eliminates outliers. please see attached > pictures (about a week worth of data) > > - c034 "control" unmodified system > - c044 patched system > > graphs show max/avg disk read service times for both systems across 36 > spinning drives. both systems are relatively busy serving production > traffic (about 10 Gbps at peak). grey shaded areas on the graphs > represent time when systems are refreshing their content, i.e. disks > are both reading and writing at the same time. > > thanks, > max > > > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >
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