On Sunday, December 25, 2011 4:40:33 pm Alexander Best wrote: > ok...so we all know that top(1) cannot compute the exact CPU usage for all > processes, since some processes get spawned and exit so fast that they don't > fall into the calculation range. i think nobody is getting angry when top(1) > is off by a few percent. > > however please take a look at the following top(1) output. this is just > ridiculous! out of 800% of CPU power, almost 600% mysteriously vanished. is > there really nothing to improve top(1)'s behaviour when the CPU is dealing > with > a lot of short processes (time wise) with a hugh CPU burst?
Do you have a lot of short-lived processes? (For example, a -j X build?) top(1) can't do anything about processes it doesn't see (since they are so short-lived and it only samples every N seconds), but those processes still accumulate CPU time and %CPU. -- John Baldwin _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
