On Fri, Feb 05, 2010 at 02:10:32PM +0300, Vladislav Bolkhovitin wrote: > Pasi Kärkkäinen, on 01/28/2010 03:36 PM wrote: >> Hello list, >> >> Please check these news items: >> http://blog.fosketts.net/2010/01/14/microsoft-intel-push-million-iscsi-iops/ >> http://communities.intel.com/community/openportit/server/blog/2010/01/19/1000000-iops-with-iscsi--thats-not-a-typo >> http://www.infostor.com/index/blogs_new/dave_simpson_storage/blogs/infostor/dave_simpon_storage/post987_37501094375591341.html >> >> "1,030,000 IOPS over a single 10 Gb Ethernet link" >> >> "Specifically, Intel and Microsoft clocked 1,030,000 IOPS (with >> 512-byte blocks), and more than 2,250MBps with large block sizes (16KB >> to 256KB) using the Iometer benchmark" >> >> So.. who wants to beat that using Linux + open-iscsi? :) > > I personally, don't like such tests and don't trust them at all. They > are pure marketing. The only goal of them is to create impression that X > (Microsoft and Windows in this case) is a super-puper ahead of the > world. I've seen on the Web a good article about usual tricks used by > vendors to cheat benchmarks to get good marketing material, but, > unfortunately, can't find link on it at the moment. > > The problem is that you can't say from such tests if X will also "ahead > of the world" on real life usages, because such tests always heavily > optimized for particular used benchmarks and such optimizations almost > always hurt real life cases. And you hardly find descriptions of those > optimizations as well as a scientific description of the tests themself. > The results published practically only in marketing documents. > > Anyway, as far as I can see Linux supports all the used hardware as well > as all advance performance modes of it, so if one repeats this test in > the same setup, he/she should get not worse results. > > For me personally it was funny to see how MS presents in the WinHEC > presentation > (http://download.microsoft.com/download/5/E/6/5E66B27B-988B-4F50-AF3A-C2FF1E62180F/COR-T586_WH08.pptx) > > that they have 1.1GB/s from 4 connections. In the beginning of 2008 I > saw a *single* dd pushing data on that rate over a *single* connection > from Linux initiator to iSCSI-SCST target using regular Myricom hardware > without any special acceleration. I didn't know how proud I must have > been for Linux :). >
Hehe, congrats :) Did you ever benchmark/measure what kind of IOPS numbers you can get? -- Pasi -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-is...@googlegroups.com. To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
