Somebody is probably reformatting your hard drive. No, seriously you need to provide a LOT more information about your configuration for anyone to get the foggiest idea about what causes this. What HW/OS? Are these disk reads or writes? What kind of modules do you use? PHP or no PHP? etc. I once observed really poor performance on a server during a load test due to disk IO and associated wait-times. The IO operations were disk writes which was bizarre because nothing was supposed to be written to disk. It turned out being mod_ssl writing to the DBM-based SSL session cache. After changing it to shm the problem went away... -ascs -----Message d'origine----- De : Samuel Vogel [mailto:samy-delux@xxxxxx] Envoyé : samedi 29 septembre 2007 17:09 À : users@xxxxxxxxxxxxxxxx Objet : Investigating high harddrive load Hey people, I would like to know if there is any way to debug what vhost is causing the high load on my harddrive, that I'm experiencing. To be more specific: When I run "top", 80% of my CPU time is in i/o wait. How could I find out, what vhost is causing this? Regards, Samy --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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