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Date:      Tue, 14 Jan 2014 20:14:26 +0400
From:      Subbsd <subbsd@gmail.com>
To:        Andrey Chernov <ache@freebsd.org>
Cc:        c.kworr@gmail.com, Alexander <ags18@yandex.ru>, stable@freebsd.org, "freebsd-ports@freebsd.org" <freebsd-ports@freebsd.org>
Subject:   Re: SCHED_ULE bug (was Re: cpuminer mines only on one core regardless of "--threads" option)
Message-ID:  <CAFt_eMr18eog8VNZS=MkmJwuubYD%2BNTxGJLpOOqt0GcO-Xsfnw@mail.gmail.com>
In-Reply-To: <52D55B24.8080102@freebsd.org>
References:  <399751389704518@web9j.yandex.ru> <52D541E7.3040305@gmail.com> <5101389708996@web13m.yandex.ru> <52D55B24.8080102@freebsd.org>

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On Tue, Jan 14, 2014 at 7:43 PM, Andrey Chernov <ache@freebsd.org> wrote:
> On 14.01.2014 17:01, Alexander wrote:
>> on Freebsd 9.2 x64 on 5 different PCs I installed net-p2p/cpuminer
>> from ports and by "pkg install" - result is the same - minerd mines
>> only on one core regardless of "--threads" option.
> ...
>> # top -P
>> CPU 0:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
>> CPU 1:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
>> CPU 2:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
>> CPU 3:  0.0% user,  100% nice,  0.0% system,  0.0% interrupt,  0.0% idle
>
> This is SCHED_ULE bug, I see _all_ processes (not minerd only in
> particular) stuck to the last CPU too (top's 'C' column is equal to the
> last CPU and never changes), latest -stable i386. It disappears for me
> switching to SCHED_4BSD.
>
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I think it's the same story seen in the distant 2011:
http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/163585



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