Date: Sat, 12 Feb 2011 00:41:00 +0000 From: Alexander Best <arundel@freebsd.org> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-questions@freebsd.org Subject: Re: deciphering top(1) output Message-ID: <20110212004100.GA98882@freebsd.org> In-Reply-To: <2F104DA0-9420-4E7A-9023-A7C6AC5EC173@mac.com> References: <20110212002129.GA95360@freebsd.org> <2F104DA0-9420-4E7A-9023-A7C6AC5EC173@mac.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri Feb 11 11, Chuck Swiger wrote: > On Feb 11, 2011, at 4:21 PM, Alexander Best wrote: > > a) my system is 100% idle, since no processes except the idle process takes up > > up CPU time or > > b) that a or some processes take up 2% CPU time which aren't being shown or > > c) that each of my cpu core is only 86.6/89.4% idle? > > It means (c). Kernel activity, short-lived transient processes, and imperfections in sampling data are the other ~13 / 10 %.... thanks. it seems in some cases these imperfections have quite an impact: last pid: 48135; load averages: 5.11, 5.38, 5.02 up 0+03:15:20 19:31:52 271 processes: 15 running, 242 sleeping, 14 waiting CPU 0: 76.4% user, 0.0% nice, 21.7% system, 2.0% interrupt, 0.0% idle CPU 1: 85.0% user, 0.0% nice, 12.6% system, 2.4% interrupt, 0.0% idle Mem: 1078M Active, 334M Inact, 403M Wired, 79M Cache, 212M Buf, 68M Free Swap: 18G Total, 438M Used, 18G Free, 2% Inuse PID UID THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 48131 0 1 77 0 92112K 67164K CPU1 1 0:02 17.77% cc1 48135 0 1 76 0 90992K 65712K RUN 0 0:01 15.87% cc1 2222 1001 1 26 0 1150M 57000K select 1 14:13 7.28% npviewer.bin 2210 1001 2 20 0 199M 45952K kqread 0 2:38 1.37% chrome 10 0 2 155 ki31 0K 32K RUN 0 89:55 1.27% idle 2249 1001 2 20 0 828M 82864K kqread 1 2:12 0.10% chrome 2247 1001 2 20 0 846M 84424K kqread 0 0:25 0.10% chrome 48133 0 1 20 0 13916K 2380K CPU0 1 0:00 0.10% top 2171 1001 23 20 0 327M 121M uwait 1 12:11 0.00% chrome 2151 1001 1 20 0 881M 15400K select 0 6:35 0.00% Xorg 2203 1001 2 20 0 889M 148M kqread 1 5:07 0.00% chrome 2235 1001 2 20 0 855M 116M kqread 0 4:51 0.00% chrome 2231 1001 2 20 0 847M 99464K kqread 0 4:47 0.00% chrome 2208 1001 2 20 0 853M 103M kqread 0 4:38 0.00% chrome cheers. alex > > Regards, > -- > -Chuck > -- a13x
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20110212004100.GA98882>