On Mon, 29 Aug 2011 15:15:02 -0600 Brett Glass wrote: > At 01:55 PM 8/29/2011, Bruce Cran wrote: > > >Actually, the ULE scheduler does know about HyperThreading and the > >topology of such CPUs. I don't know what it does with the > >information, but it probably works to optimize cache usage etc. > > Alas, during a recent kernel build, I used the -j2 command line > option in "make" and watched as the scheduler repeatedly assigned > two instances of cc (the most CPU-intensive program) to the same core.
Doesn't that make sense. If the scheduler can't put two threads from the same process on a core, it puts two processes running in the same binary. BTW I thought hyperthreading was off by default on security grounds. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
