From: Peter Zijlstra <peterz@infradead.org>
To: Pan Xinhui <xinhui.pan@linux.vnet.ibm.com>
Cc: kernellwp@gmail.com, linux-s390@vger.kernel.org, jgross@suse.com,
kvm@vger.kernel.org, xen-devel-request@lists.xenproject.org,
will.deacon@arm.com, linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, mingo@redhat.com,
paulus@samba.org, mpe@ellerman.id.au, benh@kernel.crashing.org,
pbonzini@redhat.com, paulmck@linux.vnet.ibm.com,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3 0/4] implement vcpu preempted check
Date: Thu, 29 Sep 2016 12:10:40 +0200 [thread overview]
Message-ID: <20160929101040.GV5016@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1469101514-49475-1-git-send-email-xinhui.pan@linux.vnet.ibm.com>
On Thu, Jul 21, 2016 at 07:45:10AM -0400, Pan Xinhui wrote:
> change from v2:
> no code change, fix typos, update some comments
>
> change from v1:
> a simplier definition of default vcpu_is_preempted
> skip mahcine type check on ppc, and add config. remove dedicated macro.
> add one patch to drop overload of rwsem_spin_on_owner and mutex_spin_on_owner.
> add more comments
> thanks boqun and Peter's suggestion.
>
> This patch set aims to fix lock holder preemption issues.
So I really like the concept, but I would also really like to see
support for more hypervisors included before we can move forward with
this.
Please consider s390 and (x86/arm) KVM. Once we have a few, more can
follow later, but I think its important to not only have PPC support for
this.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Pan Xinhui <xinhui.pan@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
virtualization@lists.linux-foundation.org,
linux-s390@vger.kernel.org,
xen-devel-request@lists.xenproject.org, kvm@vger.kernel.org,
benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
mingo@redhat.com, paulmck@linux.vnet.ibm.com,
will.deacon@arm.com, kernellwp@gmail.com, jgross@suse.com,
pbonzini@redhat.com, bsingharora@gmail.com
Subject: Re: [PATCH v3 0/4] implement vcpu preempted check
Date: Thu, 29 Sep 2016 12:10:40 +0200 [thread overview]
Message-ID: <20160929101040.GV5016@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1469101514-49475-1-git-send-email-xinhui.pan@linux.vnet.ibm.com>
On Thu, Jul 21, 2016 at 07:45:10AM -0400, Pan Xinhui wrote:
> change from v2:
> no code change, fix typos, update some comments
>
> change from v1:
> a simplier definition of default vcpu_is_preempted
> skip mahcine type check on ppc, and add config. remove dedicated macro.
> add one patch to drop overload of rwsem_spin_on_owner and mutex_spin_on_owner.
> add more comments
> thanks boqun and Peter's suggestion.
>
> This patch set aims to fix lock holder preemption issues.
So I really like the concept, but I would also really like to see
support for more hypervisors included before we can move forward with
this.
Please consider s390 and (x86/arm) KVM. Once we have a few, more can
follow later, but I think its important to not only have PPC support for
this.
next prev parent reply other threads:[~2016-09-29 10:10 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-21 11:45 [PATCH v3 0/4] implement vcpu preempted check Pan Xinhui
2016-07-21 11:45 ` [PATCH v3 1/4] kernel/sched: introduce vcpu preempted check interface Pan Xinhui
2016-07-21 11:45 ` Pan Xinhui
2016-07-21 11:45 ` [PATCH v3 2/4] powerpc/spinlock: support vcpu preempted check Pan Xinhui
2016-07-21 11:45 ` Pan Xinhui
2016-07-21 11:45 ` [PATCH v3 3/4] locking/osq: Drop the overhead of osq_lock() Pan Xinhui
2016-07-21 11:45 ` Pan Xinhui
2016-07-21 11:45 ` [PATCH v3 4/4] kernel/locking: Drop the overhead of {mutex, rwsem}_spin_on_owner Pan Xinhui
2016-07-21 11:45 ` [PATCH v3 4/4] kernel/locking: Drop the overhead of {mutex,rwsem}_spin_on_owner Pan Xinhui
2016-07-21 11:45 ` [PATCH v3 4/4] kernel/locking: Drop the overhead of {mutex, rwsem}_spin_on_owner Pan Xinhui
2016-09-29 10:10 ` Peter Zijlstra [this message]
2016-09-29 10:10 ` [PATCH v3 0/4] implement vcpu preempted check Peter Zijlstra
2016-09-29 10:23 ` Christian Borntraeger
2016-09-29 10:23 ` Christian Borntraeger
2016-09-29 10:31 ` Peter Zijlstra
2016-09-29 10:31 ` Peter Zijlstra
2016-09-30 5:03 ` Pan Xinhui
2016-09-30 5:03 ` Pan Xinhui
2016-09-30 6:58 ` Paolo Bonzini
2016-09-30 6:58 ` Paolo Bonzini
2016-09-30 8:52 ` Pan Xinhui
2016-09-30 8:52 ` Pan Xinhui
2016-09-30 9:08 ` Paolo Bonzini
2016-09-30 9:08 ` Paolo Bonzini
2016-09-30 9:31 ` Pan Xinhui
2016-09-30 9:31 ` Pan Xinhui
2016-09-30 10:44 ` Christian Borntraeger
2016-09-30 10:44 ` Christian Borntraeger
2016-09-29 10:40 ` Christian Borntraeger
2016-09-29 11:05 ` Christian Borntraeger
2016-09-29 11:05 ` Christian Borntraeger
2016-09-29 10:40 ` Christian Borntraeger
2016-09-30 4:00 ` Pan Xinhui
2016-09-30 4:00 ` Pan Xinhui
2016-10-05 11:00 ` Christian Borntraeger
2016-10-05 11:00 ` Christian Borntraeger
-- strict thread matches above, loose matches on Subject: below --
2016-07-21 11:45 Pan Xinhui
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160929101040.GV5016@twins.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=benh@kernel.crashing.org \
--cc=jgross@suse.com \
--cc=kernellwp@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mingo@redhat.com \
--cc=mpe@ellerman.id.au \
--cc=paulmck@linux.vnet.ibm.com \
--cc=paulus@samba.org \
--cc=pbonzini@redhat.com \
--cc=virtualization@lists.linux-foundation.org \
--cc=will.deacon@arm.com \
--cc=xen-devel-request@lists.xenproject.org \
--cc=xinhui.pan@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.