From: Paolo Bonzini <pbonzini@redhat.com>
To: Wanpeng Li <kernellwp@gmail.com>,
LKML <linux-kernel@vger.kernel.org>, kvm <kvm@vger.kernel.org>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>,
"Sean Christopherson" <sean.j.christopherson@intel.com>
Subject: Re: [PATCH v4 1/2] KVM: LAPIC: Optimize timer latency consider world switch time
Date: Wed, 3 Jul 2019 16:13:29 +0200 [thread overview]
Message-ID: <18fd2372-45d8-0bff-79e7-373a8b7d129c@redhat.com> (raw)
In-Reply-To: <CANRm+Cz9Lc5rA7-2yLLX7wiemM-gdvWvQQdGVrvkYanYO9TwgA@mail.gmail.com>
On 03/07/19 02:48, Wanpeng Li wrote:
> Hi Paolo, how about this patchset? Patch 2/2 is easy to take, do you
> have more concern about patch 1/2?
I don't know. It seems somewhat hard to tune and in cyclictest it only
happens for preemption_timer=N. Are you using preemption_timer=N
together with the LAPIC-timer-on-service-CPU patches?
Paolo
next prev parent reply other threads:[~2019-07-03 14:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-14 1:15 [PATCH v4 2/2] KVM: LAPIC: remove the trailing newline used in the fmt parameter of TP_printk Wanpeng Li
2019-06-14 1:15 ` [PATCH v4 1/2] KVM: LAPIC: Optimize timer latency consider world switch time Wanpeng Li
2019-06-21 9:44 ` Wanpeng Li
2019-06-28 8:29 ` Wanpeng Li
2019-07-03 0:48 ` Wanpeng Li
2019-07-03 14:13 ` Paolo Bonzini [this message]
2019-07-04 0:37 ` Wanpeng Li
2019-07-03 14:14 ` [PATCH v4 2/2] KVM: LAPIC: remove the trailing newline used in the fmt parameter of TP_printk Paolo Bonzini
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