Date: Sat, 23 May 2009 12:51:06 -0700 From: Yuri <yuri@rawbw.com> To: freebsd-questions@freebsd.org Subject: Why build's user CPU on 4-CPU machine with hyper-threading always higher with -j 8 compared to with -j 4? Message-ID: <4A1853AA.9060407@rawbw.com>
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I noticed that the same exact build on i7-920 (4 CPUs) consumes ~15% more user CPU when run with -j 8 compared to -j 4. Hyper-threading is enabled so top shows 8 CPUs. Why would user time be higher in a hyper-threaded run? Yuri
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