Robert Watson wrote: > > On Mon, 3 Dec 2007, Andrew Thompson wrote: > >>>> I would like to give some feedback. I listed the threads of proc 12 >>>> which >>>> is intr, >>>> >>>> # procstat -t 12 >>>> PID TID COMM CPU PRI STATE WCHAN >>>> 12 100003 intr 0 40 wait - >>>> 12 100004 intr 0 52 wait - >>>> 12 100030 intr 0 16 wait - >>>> [...] >>>> 12 100036 intr 0 36 wait - >>>> 12 100037 intr 0 24 wait - >>>> >>>> I had expected it to show the thread name such as 'irq14: ata0', is >>>> this possible (and a good thing to do)? >>> >>> I just print out the 'comm' field returned by the generic sysctl, and >>> I notice that top(1) with -S is now having the same problem as >>> procstat(1). I think this is a kernel bug in how we initialize or >>> otherwise handle thread names, and fairly recent, as it's not present >>> on my 7.0BETA2 box. If I had to guess, it's that these are now 'true >>> threads' under the single 'intr' proc, and that we're not exporting >>> the thread name? >> >> Changing to ki_ocomm gets the desired result for single and >> multithreaded processes. > > I wonder if we should be renaming ki_ocomm to ki_tdcomm or ki_tdname? we probably should now, originally there was still a used fo it somewhere but I think it's probably been fixed by now (that was many years ago). ki_tdname woudl be best. or better still, make a scheme where we actually returned thread info separate from process info. > > Robert N M Watson > Computer Laboratory > University of Cambridge > >> >> >> Andrew >> >> Index: procstat_threads.c >> =================================================================== >> RCS file: /home/ncvs/src/usr.bin/procstat/procstat_threads.c,v >> retrieving revision 1.1 >> diff -u -p -r1.1 procstat_threads.c >> --- procstat_threads.c 2 Dec 2007 23:31:45 -0000 1.1 >> +++ procstat_threads.c 3 Dec 2007 06:06:46 -0000 >> _at__at_ -82,8 +82,8 _at__at_ procstat_threads(pid_t pid, struct kinfo >> kipp = &kip[i]; >> printf("%5d ", pid); >> printf("%6d ", kipp->ki_tid); >> - printf("%-20s ", strlen(kipp->ki_comm) ? >> - kipp->ki_comm : "-"); >> + printf("%-20s ", strlen(kipp->ki_ocomm) ? >> + kipp->ki_ocomm : "-"); >> if (kipp->ki_oncpu != 255) >> printf("%3d ", kipp->ki_oncpu); >> else if (kipp->ki_lastcpu != 255) >> >> > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"Received on Mon Dec 03 2007 - 16:09:54 UTC
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