Yep, I looked at the Top source after that and saw that the inactive CPU hiding code was backed out seven days ago.
Running a make -j32 on a port shows that only CPUs 0-15 are active. Cheers! PK On Fri, 12 Oct 2018 at 21:41, Stuart Henderson <s...@spacehopper.org> wrote: > > On 2018-10-12, Peter Kay <syllops...@syllopsium.co.uk> wrote: > > I can't see any recent source code changes about hyperthreading, and > > presume it's still supposed to be disabled by default? > > > > It is not disabled on an EP2C602 with two E5-2690 CPUs (Sandy Bridge > > EP), I can see 32 'CPUs' in both top and systat. > > > > Bug I presume..? Can provide dmesg, debugging info, and remote access > > if necessary. > > > > hw.smt is set to zero > > > > PK > > > > > > Currently I would expect them to show up but not have processes > scheduled to them. > >
