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Date:      Wed, 20 Aug 2014 07:17:06 -0600
From:      Ian Lepore <ian@FreeBSD.org>
To:        Tim Kientzle <tim@kientzle.com>
Cc:        freebsd-hackers@freebsd.org, Allan Jude <allanjude@freebsd.org>
Subject:   Re: stopped processes using cpu?
Message-ID:  <1408540626.1150.1.camel@revolution.hippie.lan>
In-Reply-To: <10AEB4BC-B1B3-4312-A36C-ECE33EC56805@kientzle.com>
References:  <CAA3ZYrAzpxpFNST5ZT-zHvk4Gg38w-yH1dTQj53Fp_rM-hohaA@mail.gmail.com> <53F3A564.8070202@freebsd.org> <10AEB4BC-B1B3-4312-A36C-ECE33EC56805@kientzle.com>

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On Tue, 2014-08-19 at 18:45 -0700, Tim Kientzle wrote:
> On Aug 19, 2014, at 12:28 PM, Allan Jude <allanjude@freebsd.org> wrote:
>=20
> > On 2014-08-19 15:21, Dieter BSD wrote:
> >> 8.2 on amd64
> >> Top(1) with no arguments reports that some firefox processes are usi=
ng cpu
> >> dispite being stopped (via kill -stop pid) for at least several hour=
s.
> >> Adding -C doesn't change the numbers.  Ps(1) reports the same.
> >> Interestingly, a firefox that isn't stopped is (correctly?) reported=
 as
> >> using 0 cpu.  The 100% idle should be correct, but who knows.
> >>=20
> >> last pid: 51932;  load averages:  0.07, 0.99, 1.42 up 14+19:02:56  0=
8:48:28
> >> 267 processes: 1 running, 138 sleeping, 128 stopped
> >> CPU:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% id=
le
> >> Mem: 1665M Active, 653M Inact, 240M Wired, 95M Cache, 372M Buf, 815M=
 Free
> >> Swap: 8965M Total, 560K Used, 8965M Free
> >>=20
> >>  PID USERNAME  THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMA=
ND
> >> 44188 a           9  44    0   303M   187M STOP   113:19 13.43% fire=
fox-bin
> >> 92986 b          11  44    0   164M 62848K STOP     0:18  5.03% fire=
fox-bin
> >> 16507 c          11  44    0   189M 88976K STOP     0:13  0.24% fire=
fox-bin
> >> 2265 root        1  44    0   248M   193M select 625:38  0.00% Xorg
> >> 51271 d          10  44    0   233M   128M ucond   12:12  0.00% fire=
fox-bin
> >> _______________________________________________
> >> freebsd-hackers@freebsd.org mailing list
> >> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> >> To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebs=
d.org"
> >>=20
> >=20
> > I wonder if jhb@'s new top code solves this. He adjusted the way CPU
> > usage is tracked to be more responsive, and not based on averages
>=20
> I wonder if jhb@=A2s new top code fixes the whacky WCPU values we=A2ve =
been seeing on FreeBSD/ARM.  (1713% CPU is a little hard to believe on a =
single-core board ;-).
>=20
> Tim
>=20

*Fixes* it?  I've been under the impression those changes caused it.  I
certainly never saw 1000%+ numbers in top until very recently.

-- Ian





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