Displaying 8 results from an estimated 8 matches for "impliestw".
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2017 Sep 01
2
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
>>> This is not a 50/50 split, which impliesTw that some packets from the
>>> large
>>> packet flow are still converted to copying. Without the change the rate
>>> without queue was 80k zerocopy vs 80k copy, so this choice of
>>> (vq->num >> 2) appears too conservative.
>>>
>>> Howe...
2017 Sep 01
2
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
>>> This is not a 50/50 split, which impliesTw that some packets from the
>>> large
>>> packet flow are still converted to copying. Without the change the rate
>>> without queue was 80k zerocopy vs 80k copy, so this choice of
>>> (vq->num >> 2) appears too conservative.
>>>
>>> Howe...
2017 Sep 01
2
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
...68535
>
> Both flows continue to send at more or less normal rate, with only
> sender B observing massive drops at the netem.
>
> With the queue removed the rate reverts to
>
> zerocopy=58878 copy=110239
> zerocopy=58833 copy=110207
>
> This is not a 50/50 split, which impliesTw that some packets from the large
> packet flow are still converted to copying. Without the change the rate
> without queue was 80k zerocopy vs 80k copy, so this choice of
> (vq->num >> 2) appears too conservative.
>
> However, testing with (vq->num >> 1) was not as...
2017 Sep 01
2
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
...68535
>
> Both flows continue to send at more or less normal rate, with only
> sender B observing massive drops at the netem.
>
> With the queue removed the rate reverts to
>
> zerocopy=58878 copy=110239
> zerocopy=58833 copy=110207
>
> This is not a 50/50 split, which impliesTw that some packets from the large
> packet flow are still converted to copying. Without the change the rate
> without queue was 80k zerocopy vs 80k copy, so this choice of
> (vq->num >> 2) appears too conservative.
>
> However, testing with (vq->num >> 1) was not as...
2017 Sep 05
1
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
On Mon, Sep 4, 2017 at 5:03 AM, Jason Wang <jasowang at redhat.com> wrote:
>
>
> On 2017?09?02? 00:17, Willem de Bruijn wrote:
>>>>>
>>>>> This is not a 50/50 split, which impliesTw that some packets from the
>>>>> large
>>>>> packet flow are still converted to copying. Without the change the rate
>>>>> without queue was 80k zerocopy vs 80k copy, so this choice of
>>>>> (vq->num >> 2) appears too conservative...
2017 Sep 05
1
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
On Mon, Sep 4, 2017 at 5:03 AM, Jason Wang <jasowang at redhat.com> wrote:
>
>
> On 2017?09?02? 00:17, Willem de Bruijn wrote:
>>>>>
>>>>> This is not a 50/50 split, which impliesTw that some packets from the
>>>>> large
>>>>> packet flow are still converted to copying. Without the change the rate
>>>>> without queue was 80k zerocopy vs 80k copy, so this choice of
>>>>> (vq->num >> 2) appears too conservative...
2017 Sep 04
0
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
On 2017?09?02? 00:17, Willem de Bruijn wrote:
>>>> This is not a 50/50 split, which impliesTw that some packets from the
>>>> large
>>>> packet flow are still converted to copying. Without the change the rate
>>>> without queue was 80k zerocopy vs 80k copy, so this choice of
>>>> (vq->num >> 2) appears too conservative.
>>>&g...
2017 Sep 01
0
[PATCH net-next] virtio-net: invoke zerocopy callback on xmit path if no tx napi
...nue to send at more or less normal rate, with only
>> sender B observing massive drops at the netem.
>>
>> With the queue removed the rate reverts to
>>
>> zerocopy=58878 copy=110239
>> zerocopy=58833 copy=110207
>>
>> This is not a 50/50 split, which impliesTw that some packets from the
>> large
>> packet flow are still converted to copying. Without the change the rate
>> without queue was 80k zerocopy vs 80k copy, so this choice of
>> (vq->num >> 2) appears too conservative.
>>
>> However, testing with (vq-&g...