Date: Tue, 8 Mar 2005 07:10:05 GMT From: Jari Kirma <kirma@cs.hut.fi> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/78342: top -S shows potentially incorrect CPU usage for idle thread Message-ID: <200503080710.j287A5rx047560@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR kern/78342; it has been noted by GNATS. From: Jari Kirma <kirma@cs.hut.fi> To: freebsd-gnats-submit@FreeBSD.org Cc: Subject: Re: kern/78342: top -S shows potentially incorrect CPU usage for idle thread Date: Tue, 8 Mar 2005 09:04:27 +0200 (EET) On the original host, but with SCHED_BSD scheduler, problem doesn't occur, or at least is considerably less prominent. With idle CPU state at 99.8% idle, the idle thread shows 99.03% CPU usage. Also noted that the load seems to show up at percentage steps of 100/128 (0.78125%) on SCHED_ULE, but much finer resolution on SCHED_BSD. I don't know if that's a bug or a feature.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200503080710.j287A5rx047560>