Date: Sat, 17 Feb 2007 09:12:57 +0100 From: "Claus Guttesen" <kometen@gmail.com> To: "Steven H. Baeighkley" <stevenb@frii.com> Cc: freebsd-performance@freebsd.org Subject: Re: bizarre performance issues in 6.2 release Message-ID: <b41c75520702170012m158f256bh189fe68ddf55cb8e@mail.gmail.com> In-Reply-To: <45D640FE.3070805@frii.com> References: <45D640FE.3070805@frii.com>
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> We have been having some trouble with an upgrade to 6.2-Release. The > performance just seems out of whack. We concede that there could be a > reporting issue, but the results we are seeing are far too strange for > that to be our first inclination. > > Background: > > We have 2 identical supermicro superserver 6022c. These have dual 2.0 > Xeons with hyperthreading and 2 GB of RAM. A full description of the > system is avaialble here > > http://www.supermicro.com/products/system/2U/6022/SYS-6022C.cfm Try disabling hyperthreading on the 6.2-server. In some cases you get a moderate performance-increase, in most cases this setting is counter-productive. regards Claushelp
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