Date: Thu, 22 May 2003 07:46:08 +1000 (EST) From: Andy Farkas <andyf@speednet.com.au> To: Paul Hamilton <paul@computerwest.com.au> Cc: Freebsd-Questions <freebsd-questions@freebsd.org> Subject: Re: 'top' showing high interrupt rate Message-ID: <20030522074024.B93323-100000@hewey.af.speednet.com.au> In-Reply-To: <AGEHIFHGNEMPFNCPLONMOEFPEKAA.paul@compwest.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 21 May 2003, Paul Hamilton wrote: > I noticed that top shows a rather high interrupt rate, usually hovering > around 60%! Here is a sample:- Try `top -S` instead. This will show system processes as well. Also, use `systat -v` as previously mentioned to see interrupt counts. > last pid: 2879; load averages: 0.34, 0.24, 0.18 > up 1+17:26:56 17:18:10 > 36 processes: 2 running, 33 sleeping, 1 zombie Zombies not good. > dmesg says: > > Copyright (c) 1992-2000 The FreeBSD Project. > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 > The Regents of the University of California. All rights reserved. > FreeBSD 4.2-RELEASE #1: Tue Feb 13 22:51:23 WST 2001 > root@ant.compwest.net.au:/usr/src/sys/compile/ANT > Timecounter "i8254" frequency 1193182 Hz > CPU: Pentium/P55C (165.79-MHz 586-class CPU) > Origin = "GenuineIntel" Id = 0x544 Stepping = 4 > Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX> > real memory = 33554432 (32768K bytes) > avail memory = 29478912 (28788K bytes) > > Yes, the server only has 32MB or RAM, however, it's only using 4MB of VM. > > Anyone have any idea how to troubleshoot further? How can I isolate what is > causing the rather high interrupt rate? My guess is this box is a gateway/firewall and may be getting pounded on the network interfaces. Are you running ipfw as well? -- :{ andyf@speednet.com.au Andy Farkas System Administrator Speednet Communications http://www.speednet.com.au/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030522074024.B93323-100000>