--- Jonathan Khoo <jonath-k@is.aist-nara.ac.jp> wrote: > Hi guys, > > I want to measure the timings between various operations in the > kernel > and the only way I know of is to use printk to output the timings. > However, I also realize that by adding unnecessary printk > statements > will affect the system performance. How can I measure the "actual" > timings? > Those more experienced will (please!) correct me if I am wrong: ]time your-command // will time start/end of a command E.g. to "time" the command ls -l: [root@eng-03 wordbook] time ll total 692 -rwxr-xr-x 1 root root 516 Feb 28 06:00 dictionary.lst* -rwxr-xr-x 1 root root 1809 Feb 28 06:00 en_US.aff* -rwxr-xr-x 1 root root 695724 Feb 28 06:00 en_US.dic* real 0m0.245s user 0m0.010s sys 0m0.010s Harmony, --Christine __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
