On 1/2/07, Jason Hughes <[EMAIL PROTECTED]> wrote: > Good recommendations, Holger. I would add that "nice"ing a process only > changes its scheduling affinity, but does not modify in any way its hard > disk activity or DMA priority, so until the original poster understands > what exactly makes the server slow, he's shooting in the dark. A busy > hard drive usually makes a system feel slower than a busy CPU process, > because hard disk activity requires a 6-10ms seek minimum, plus > streaming and unloading to vram, depending on what other processes are > doing.
Actually, if you are using the cfq IO scheduler in recent Linux kernels, renicing a process also prioritizes IO as well. :-) -Dave ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
