From: David Miller <davem@davemloft.net>
To: mst@redhat.com
Cc: jasowang@redhat.com, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
peterx@redhat.com, James.Bottomley@hansenpartnership.com,
hch@infradead.org, jglisse@redhat.com, linux-mm@kvack.org,
linux-arm-kernel@lists.infradead.org,
linux-parisc@vger.kernel.org, christophe.de.dinechin@gmail.com,
jrdr.linux@gmail.com
Subject: Re: [PATCH net-next 0/6] vhost: accelerate metadata access
Date: Thu, 30 May 2019 11:55:49 -0700 (PDT) [thread overview]
Message-ID: <20190530.115549.1509561180724590494.davem@davemloft.net> (raw)
In-Reply-To: <20190530141243-mutt-send-email-mst@kernel.org>
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 30 May 2019 14:13:28 -0400
> On Thu, May 30, 2019 at 11:07:30AM -0700, David Miller wrote:
>> From: Jason Wang <jasowang@redhat.com>
>> Date: Fri, 24 May 2019 04:12:12 -0400
>>
>> > This series tries to access virtqueue metadata through kernel virtual
>> > address instead of copy_user() friends since they had too much
>> > overheads like checks, spec barriers or even hardware feature
>> > toggling like SMAP. This is done through setup kernel address through
>> > direct mapping and co-opreate VM management with MMU notifiers.
>> >
>> > Test shows about 23% improvement on TX PPS. TCP_STREAM doesn't see
>> > obvious improvement.
>>
>> I'm still waiting for some review from mst.
>>
>> If I don't see any review soon I will just wipe these changes from
>> patchwork as it serves no purpose to just let them rot there.
>>
>> Thank you.
>
> I thought we agreed I'm merging this through my tree, not net-next.
> So you can safely wipe it.
Aha, I didn't catch that, thanks!
WARNING: multiple messages have this Message-ID (diff)
From: David Miller <davem@davemloft.net>
To: mst@redhat.com
Cc: hch@infradead.org, linux-parisc@vger.kernel.org,
kvm@vger.kernel.org, netdev@vger.kernel.org, jasowang@redhat.com,
linux-kernel@vger.kernel.org, peterx@redhat.com,
virtualization@lists.linux-foundation.org,
James.Bottomley@hansenpartnership.com, linux-mm@kvack.org,
jglisse@redhat.com, jrdr.linux@gmail.com,
linux-arm-kernel@lists.infradead.org,
christophe.de.dinechin@gmail.com
Subject: Re: [PATCH net-next 0/6] vhost: accelerate metadata access
Date: Thu, 30 May 2019 11:55:49 -0700 (PDT) [thread overview]
Message-ID: <20190530.115549.1509561180724590494.davem@davemloft.net> (raw)
In-Reply-To: <20190530141243-mutt-send-email-mst@kernel.org>
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 30 May 2019 14:13:28 -0400
> On Thu, May 30, 2019 at 11:07:30AM -0700, David Miller wrote:
>> From: Jason Wang <jasowang@redhat.com>
>> Date: Fri, 24 May 2019 04:12:12 -0400
>>
>> > This series tries to access virtqueue metadata through kernel virtual
>> > address instead of copy_user() friends since they had too much
>> > overheads like checks, spec barriers or even hardware feature
>> > toggling like SMAP. This is done through setup kernel address through
>> > direct mapping and co-opreate VM management with MMU notifiers.
>> >
>> > Test shows about 23% improvement on TX PPS. TCP_STREAM doesn't see
>> > obvious improvement.
>>
>> I'm still waiting for some review from mst.
>>
>> If I don't see any review soon I will just wipe these changes from
>> patchwork as it serves no purpose to just let them rot there.
>>
>> Thank you.
>
> I thought we agreed I'm merging this through my tree, not net-next.
> So you can safely wipe it.
Aha, I didn't catch that, thanks!
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next prev parent reply other threads:[~2019-05-30 18:56 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-24 8:12 [PATCH net-next 0/6] vhost: accelerate metadata access Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` [PATCH net-next 1/6] vhost: generalize adding used elem Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` [PATCH net-next 2/6] vhost: fine grain userspace memory accessors Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` [PATCH net-next 3/6] vhost: rename vq_iotlb_prefetch() to vq_meta_prefetch() Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` [PATCH net-next 4/6] vhost: introduce helpers to get the size of metadata area Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` [PATCH net-next 5/6] vhost: factor out setting vring addr and num Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` [PATCH net-next 6/6] vhost: access vq metadata through kernel virtual address Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-24 8:12 ` Jason Wang
2019-05-30 18:07 ` [PATCH net-next 0/6] vhost: accelerate metadata access David Miller
2019-05-30 18:07 ` David Miller
2019-05-30 18:07 ` David Miller
2019-05-30 18:13 ` Michael S. Tsirkin
2019-05-30 18:13 ` Michael S. Tsirkin
2019-05-30 18:13 ` Michael S. Tsirkin
2019-05-30 18:55 ` David Miller
2019-05-30 18:55 ` David Miller [this message]
2019-05-30 18:55 ` David Miller
2019-06-05 20:27 ` Michael S. Tsirkin
2019-06-05 20:27 ` Michael S. Tsirkin
2019-06-05 20:27 ` Michael S. Tsirkin
2019-06-10 3:50 ` Jason Wang
2019-06-10 3:50 ` Jason Wang
2019-06-10 3:50 ` Jason Wang
-- strict thread matches above, loose matches on Subject: below --
2019-05-24 8:12 Jason Wang
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