From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yong Fan Date: Tue, 10 Mar 2009 17:28:46 +0800 Subject: [Lustre-devel] statahead_performance.pdf - Adobe Reader In-Reply-To: <002901c9a0dd$22249850$666dc8f0$@com> References: <070201c9a0c4$d6fe8b50$84fba1f0$@com> <49B544FA.9020009@sun.com> <002901c9a0dd$22249850$666dc8f0$@com> Message-ID: <49B632CE.4040500@sun.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lustre-devel@lists.lustre.org Sorry, some test resources budgeting limit delayed the test a little. This is the last test result: TCP2, IB and Routed IB were tested on the same cluster with the same scale. TPC1 was tested on another cluster. Regards, -- Fan Yong > Fan Yong, > > I don't think the factor of ~2 can be explained simply by node > performance. But why debate the point when it will be simpler > to repeat the measurements (i.e. repeating the tests exactly > with the same parameters e.g. # dirents) using 1GigE on the > same nodes that were used to measure IB. > > Cheers, > Eric > > >> -----Original Message----- >> From: Yong.Fan at Sun.COM [mailto:Yong.Fan at Sun.COM] >> Sent: 09 March 2009 4:34 PM >> To: Eric Barton >> Cc: lustre-devel at lists.lustre.org >> Subject: Re: statahead_performance.pdf - Adobe Reader >> >> Eric Barton ??: >> >>> Fan Yong, >>> >>> The attached PDF shows the results you gathered in a form >>> that makes it easier to understand the results and helps >>> comparison. Please could you review it for correctness. >>> >>> >>> >> Yes, it is much help to understand the performance improvement >> by statahead with the chart. >> >> But I think the first chart for "Statahead Dirents/second" maybe >> some misguide, since the TCP result and IB result are from different >> hardware environment (I mean the CPU and memory), that the speed >> of stating under IB is faster than TCP case is meaningless. >> >> Relatively, the second chart for "Statahead Speedup" is more useful, >> which is relatively independent from hardware (CPU and memory). >> It gives the trend of upper bound on performance improvement from >> statahead under different network configure, and different dir/file ratio. >> >> >> Thanks! >> -- >> Fan Yong >> >>> Cheers, >>> Eric >>> >>> >>> > > > -------------- next part -------------- A non-text attachment was scrubbed... Name: statahead_performance.ods Type: application/vnd.oasis.opendocument.spreadsheet Size: 32448 bytes Desc: not available URL: