From: "Michael S. Tsirkin" <mst@redhat.com>
To: Yunsheng Lin <linyunsheng@huawei.com>
Cc: Jason Wang <jasowang@redhat.com>,
davem@davemloft.net, kuba@kernel.org, brouer@redhat.com,
paulmck@kernel.org, peterz@infradead.org, will@kernel.org,
shuah@kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, linux-kselftest@vger.kernel.org,
linuxarm@openeuler.org
Subject: Re: [PATCH net-next v3 1/3] selftests/ptr_ring: add benchmark application for ptr_ring
Date: Fri, 2 Jul 2021 10:18:37 -0400 [thread overview]
Message-ID: <20210702101730-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <06f0dc67-d614-30d3-6dcc-f2446cb6030b@huawei.com>
On Fri, Jul 02, 2021 at 05:54:42PM +0800, Yunsheng Lin wrote:
> On 2021/7/2 17:04, Jason Wang wrote:
> >
>
> [...]
>
> >
> >
> >> I understand that you guys like to see a working testcase of virtio.
> >> I would love to do that if I have the time and knowledge of virtio,
> >> But I do not think I have the time and I am familiar enough with
> >> virtio to fix that now.
> >
> >
> > So ringtest is used for bench-marking the ring performance for different format. Virtio is only one of the supported ring format, ptr ring is another. Wrappers were used to reuse the same test logic.
> >
> > Though you may see host/guest in the test, it's in fact done via two processes.
> >
> > We need figure out:
> >
> > 1) why the current ringtest.c does not fit for your requirement (it has SPSC test)
>
> There is MPSC case used by pfifo_fast, it make more sense to use a separate selftest
> for ptr_ring as ptr_ring has been used by various subsystems.
>
>
> > 2) why can't we tweak the ptr_ring.c to be used by both ring_test and your benchmark
>
> Actually that is what I do in this patch, move the specific part related to ptr_ring
> to ptr_ring_test.h. When the virtio testing is refactored to work, it can reuse the
> abstract layer in ptr_ring_test.h too.
Sounds good. But that refactoring will be up to you as a contributor.
> >
> > If neither of the above work, we can invent new ptr_ring infrastructure under tests/
> >
> > Thanks
> >
> >
> >>
> >>
> >
> > .
> >
next prev parent reply other threads:[~2021-07-02 14:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-01 12:26 [PATCH net-next v3 0/3] add benchmark selftest and optimization for ptr_ring Yunsheng Lin
2021-07-01 12:26 ` [PATCH net-next v3 1/3] selftests/ptr_ring: add benchmark application " Yunsheng Lin
2021-07-02 6:43 ` Jason Wang
2021-07-02 8:17 ` Yunsheng Lin
2021-07-02 8:30 ` Michael S. Tsirkin
2021-07-02 8:46 ` Yunsheng Lin
2021-07-02 9:04 ` Jason Wang
2021-07-02 9:54 ` Yunsheng Lin
2021-07-02 14:18 ` Michael S. Tsirkin [this message]
2021-07-05 1:43 ` Yunsheng Lin
2021-07-02 14:16 ` Michael S. Tsirkin
2021-07-01 12:26 ` [PATCH net-next v3 2/3] ptr_ring: move r->queue[] clearing after r->consumer_head updating Yunsheng Lin
2021-07-02 6:45 ` Jason Wang
2021-07-02 8:40 ` [Linuxarm] " Yunsheng Lin
2021-07-01 12:26 ` [PATCH net-next v3 3/3] ptr_ring: add barrier to ensure the visiblity of r->queue[] Yunsheng Lin
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