Re[4]: High kernel CPU usage when copying files

[Rutkov Denis]

In idle state have 0 of these "D-state" processes. During file copying I have 1-2 of them.

Using sar I've collected the following statistics: during file copying system load raises to 30% (from 5%), user load raises to 15% (from about 7%) and io wait raises to 60% (from 0-1%). Idle part drops to 0% (from about 87%).

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/