IIRC, The SRP Target code has many context switches that throttle performance at higher thread counts.
> -----Original Message----- > From: Chris Worley [mailto:[email protected]] > Sent: Monday, May 18, 2009 9:21 AM > To: OpenIB; scst-devel > Subject: [Scst-devel] SRP aggregate bandwidth decreasing as > threads increase > > > I'm seeing peak performance at ~4 threads (1.6GB/s), w/ > threads >10 I'm seeing aggregate performance drop > significantly. This is not a drive issue: locally, the > drives get best performance >~32 threads, and maintain their > aggregate way beyond that. > > Is there any tunable parameter or source code change in the > initiator or target code that would effect performance with a > high thread count? > > Thanks, > > Chris > > -------------------------------------------------------------- > ---------------- > Crystal Reports - New Free Runtime and 30 Day Trial > Check out the new simplified licensing option that enables > unlimited royalty-free distribution of the report engine > for externally facing server and web deployment. > http://p.sf.net/sfu/businessobjects > _______________________________________________ > Scst-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/scst-devel > _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
