Date: Thu, 11 Sep 2003 19:11:38 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Joe Altman <fj@panix.com>, freebsd-questions@freebsd.org Subject: Re: On 5.1, what is the process named "idle"? Message-ID: <20030912021138.GA8792@rot13.obsecurity.org> In-Reply-To: <20030912020538.GA22921@panix.com> References: <20030912000405.GA5982@panix.com> <20030912003951.GA2226@plewe.is.tsukuba.ac.jp> <20030912005001.GD8251@rot13.obsecurity.org> <20030912020538.GA22921@panix.com>
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--k1lZvvs/B4yU6o8G Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Sep 11, 2003 at 10:05:38PM -0400, Joe Altman wrote: > > The idle task is the kernel thread that runs when the kernel is not > > doing anything else more meaningful like running user processes or > > servicing I/O. It takes care of running some low-priority tasks like > > pre-zeroing memory pages in preparation for future demand. >=20 > So, should it be in a constant state of RUN, and consume more than 90% > of CPU and WCPU for more than twenty four hours? If your machine is more than 90% idle, yes. > I've taken another look at this, and just noticed that there are tasks > with NICE ranging from 52 to -187 in 'top -SU root'...I'm not freaked > out by this, but note that I read the man page which indicates that > possible values range from 20 to -20. Yes, read what the -S option to top does. Kris --k1lZvvs/B4yU6o8G Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/YStaWry0BWjoQKURAjzbAKDrwqzAcU6DdsHPDT/9FXlmBkn+kACcCXYM TkdhrQtlaYZ8+ZB388NBkIc= =CujG -----END PGP SIGNATURE----- --k1lZvvs/B4yU6o8G--
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