On Tue, Dec 18, 2007 at 02:49:29AM +0200, Oded Arbel wrote: > Running some static benchmarks that should mimic the behavior on real > load, on identical hardware at the office, I see very little "hard-IRQ" > time if at all. The main difference between the static benchmark and > real usage is that the static benchmark only tests the application logic > and IO, while real usage also fetches some files served by Apache over > HTTP with each request - maybe ~50Kbytes worth of responses are served > by Apache for each request to the application. I was thinking that the > high IRQ usage is due to high network traffic - could that be the case > and could that be affecting the server's performance ?
I am not an expert on this, but what you want might be "NAPI" - a new network driver infrastructure designed to solve just that. Google a bit - I do not know exactly when it entered 2.6 (and you did not state your kernel version) and which drivers use it already. -- Didi ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
