On 10:53 Thu 29 Jan , Jason Gunthorpe wrote: > On Thu, Jan 29, 2009 at 05:26:37PM +0200, Yevgeny Kliteynik wrote: > > > Then I added 20 msec sleep after write() failure to make it give up the cpu > > time > > slice, and I saw some improvement. When I added sleep of several seconds, > > the problem > > disappeared completely, but then of course, the client's transaction will > > fail with > > timeout unless you specifically increase the transaction timeout on the > > client side. > > Poll or a blocking fd would be a better choice than a sleep...
True. (However in libibumad fd is opened with O_NONBLOCK flag - I have no a good understanding yet why it was done so (the change is from 2005).) Sasha _______________________________________________ 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
