On 7/29/05, T. Horsnell <tsh@xxxxxxxxxxxxxxxxx> wrote: > >Hi list, > >Once again my FC4 box (Duron 1200mHz, 512 ram) has crawled to a halt. > >I quickly top'ed and found a process prelink that varied between > >74%-98% CPU usage. > > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > > 5202 root 39 19 11724 9280 536 R 89.9 1.9 0:23.59 prelink > > > >So I googled for prelink and now know that it helps preload libraries > >so that progreams can start faster. Which is senseable because the > >machine started slowing down when I clicked 'manage bookmarks' in > >firefox, which opens another program. My question is, what can I do to > >prevent this from happening again? Do I have to ust cross my fingers > >every time I open a new program? > > > > If you look in /etc/crontab, you will probably see something like: > > SHELL=/bin/bash > PATH=/sbin:/bin:/usr/sbin:/usr/bin > MAILTO=root > HOME=/ > > # run-parts > 01 * * * * root run-parts /etc/cron.hourly > 02 4 * * * root run-parts /etc/cron.daily > 22 4 * * 0 root run-parts /etc/cron.weekly > 42 4 1 * * root run-parts /etc/cron.monthly > > > This tells cron to run stuff at regular intervals. > If you look in /etc/cron.daily/ you will see things like > > 00-logwatch > 00-makewhatis.cron > 0anacron > logrotate > prelink > rpm > slocate.cron > tetex.cron > tmpwatch > yum.cron > > Looking at the prelink script, it goes round your system seeing if > there is any new stuff to prelink. > > Likewise 00-makewhatis.cron re-builds the 'whatis' database > > These are both disk-intensive (hence cache-consuming) > things which you may not want to do so frequently... > > Cheers, > Terry. > Thanks, I may just turn down the frequency of those things. Dotan Cohen http://song-lirics.com/sl/artist/321/madonna-lirics.php Dotan Cohen
