Messages in this thread |  | | | Date | Fri, 11 Mar 2005 11:10:16 -0800 | | From | Ben Greear <> | | Subject | Re: BUG: Slowdown on 3000 socket-machines tracked down |
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Christian Schmid wrote: > OHGAWD I GOT IT!!!!!!!! > > I admit, totally coincidentially but its really FIXED. Today I went to > the puter scanning the servers by routine and wondered why the bandwidth > is at 100% without any holes. > > The only thing I have done is I switched off hyper-threading because the > server is at only 20% CPU anyway so I just disabled it. > > So its something with linux dealing with hyper-threading. YAY :)
For what it's worth, I was running dual-xeon systems with HT turned on.
But, I have a single process, single-threaded application, so there is not much scheduling to be done. If you have a large number of threads or processes, then it would make more sense for turning off HT to have an affect.
Ben
-- Ben Greear <greearb@candelatech.com> Candela Technologies Inc http://www.candelatech.com
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