Package: procps Version: 1:3.3.2-3 Severity: normal Dear Maintainer,
If you just run vmstat or vmstat 1 the first line shows an average of certain counters since machine boot. However, I believe that at least the average interrupt and context switch counts are broken. Observer the following output: edb@lapedb:~/today$ grep -E -e "ctxt|intr" /proc/stat | cut -d \ -f 1-2 ; cat /proc/uptime ; vmstat intr 1051786 ctxt 1184893 1188.50 9001.64 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 0 0 6979028 77512 642036 0 0 73 18 111 125 3 1 95 2 So we have 1051786 interrupts during 1188 seconds which gives an average of: >>> 1051786/1188 885 Same for context switches: >>> 1184893/1188 997 One thing however which should be noted is that if I multiply vmstats output by 8, I get very close to the real results. (Why the magical 8 ? Believe it or not but my laptop has a quad core cpu with ht: edb@lapedb:~/today$ cat /proc/cpuinfo | grep processor | wc -l 8 ) I took a look at the code, and si/so bi/bo are also calculated the same way, so these might also be broken. -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (500, 'testing') Architecture: i386 (i686) Kernel: Linux 3.2.0-2-686-pae (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages procps depends on: ii initscripts 2.88dsf-22.1 ii libc6 2.13-27 ii libncurses5 5.9-4 ii libncursesw5 5.9-4 ii libprocps0 1:3.3.2-3 ii libtinfo5 5.9-4 ii lsb-base 4.1+Debian0 Versions of packages procps recommends: ii psmisc 22.16-1 procps suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
