On 18 November 2011 00:59, Christiano F. Haesbaert <haesba...@haesbaert.org> wrote: > On 17 November 2011 23:39, Ted Unangst <t...@tedunangst.com> wrote: >> On Fri, Nov 18, 2011, Thordur Bjornsson wrote: >>> On 2011 Nov 17 (Thu) at 21:18:24 -0200 (-0200), Christiano F. Haesbaert >>> wrote: >>>> Moving this to tech@ >>>> >>>> Hi, >>>> >>>> I was studying the scheduler code after watching tedu's talk, I'd like >>>> to expose this statistics to userland so that I can try playing with >>>> cache affinity in the future: >>>> >>>> gimli:src: sysctl kern.schedstat >>> >>>> kern.schedstat.nmigrations=23744 >>>> kern.schedstat.noidle=0 >>>> kern.schedstat.stolen=9170 >>>> kern.schedstat.choose=834843 >>>> kern.schedstat.wasidle=808711 >>>> kern.schedstat.nomigrations=2388 >>>> >>>> Opinions ? >>> >>> I see no point in exporting this out. They are essentially pointless >>> knobs that people _will_ fiddle with without a clue. >> >> ??? They're readonly. >> > > Mike just pointed out I can get those with pstat, so that solves my problem. > > Still maybe there is a place for sysctl, but I'm not too strong about > it anymore. > > What is the line between sysctl vs globals ? >
Checking again, it makes sense having the sysctl IMHO. We have something very similar in kern.forkstat, kern.nchstats, and the protocol stats.
