Right now, when top is set to not display idle processes or threads, it only displays processes or threads that are currently in a runnable state or have a non-zero %cpu. However, our %cpu is quite imprecise. I have patch to change top to instead compare the thread or processes runtime (ki_runtime in kinfo_proc) against the runtime of the thread or process the last time data was fetched. In essence, top will consider any thread that has run on a CPU since the last update as non-idle. The end result is that mostly-idle threads and processes will now be visible in top's idle display. Personally, I find this more useful (and find the current implementation completely useless). The patch is at http://people.freebsd.org/~jhb/patches/top_idle.patch
Comments? -- 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"
