From: Ingo Molnar <mingo@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Eric Dumazet <edumazet@google.com>,
Borislav Petkov <bp@alien8.de>,
Eric Dumazet <eric.dumazet@gmail.com>,
the arch/x86 maintainers <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
Hugh Dickins <hughd@google.com>,
a.p.zijlstra@chello.nl
Subject: Re: [PATCH v3 1/2] x86, msr: allow rdmsr_safe_on_cpu() to schedule
Date: Tue, 27 Mar 2018 11:36:48 +0200 [thread overview]
Message-ID: <20180327093648.iba7rzvviolyjgmt@gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.21.1803261621430.1585@nanos.tec.linutronix.de>
* Thomas Gleixner <tglx@linutronix.de> wrote:
> On Mon, 26 Mar 2018, Eric Dumazet wrote:
> > On Sun, Mar 25, 2018 at 11:40 PM Ingo Molnar <mingo@kernel.org> wrote:
> > > If performance matters then the relevant MSR events should be added and
> > > gsysd
> > > should be updated to support MSR events.
> > >
> >
> > Thanks for the hints Ingo. I have forwarded them.
> >
> > I am pretty sure gsysd was designed and written years before perf even
> > existed,
> > so I am not sure all this will ever be implemented.
> >
> > I guess I will apply the kernel patches locally for the time being.
>
> I'm still considering to merge them because there is no real reason not to
> do so. The interfaces exist and are used. Reducing their impact is
> certainly worthwhile.
Ok, that's a good point, and the patches themselves are sane:
Acked-by: Ingo Molnar <mingo@kernel.org>
Thanks,
Ingo
next prev parent reply other threads:[~2018-03-27 9:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-23 21:58 [PATCH v3 1/2] x86, msr: allow rdmsr_safe_on_cpu() to schedule Eric Dumazet
2018-03-23 21:58 ` [PATCH v3 2/2] x86, cpuid: allow cpuid_read() " Eric Dumazet
2018-03-23 22:17 ` H. Peter Anvin
2018-03-24 1:01 ` Eric Dumazet
2018-03-25 22:11 ` H. Peter Anvin
2018-03-27 10:10 ` [tip:x86/cleanups] x86/cpuid: Allow " tip-bot for Eric Dumazet
2018-03-24 8:09 ` [PATCH v3 1/2] x86, msr: allow rdmsr_safe_on_cpu() " Ingo Molnar
2018-03-24 10:50 ` Thomas Gleixner
2018-03-24 14:29 ` Eric Dumazet
2018-03-25 14:12 ` Borislav Petkov
2018-03-26 1:21 ` H. Peter Anvin
2018-03-26 6:40 ` Ingo Molnar
[not found] ` <CANn89iKy_jVpBvAebJFm1UKVKfG=p+R4B1tXmC4waeK7YzZh2g@mail.gmail.com>
2018-03-26 14:23 ` Thomas Gleixner
2018-03-27 9:36 ` Ingo Molnar [this message]
2018-03-27 10:10 ` [tip:x86/cleanups] x86/msr: Allow " tip-bot for Eric Dumazet
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