Re: [dpdk-dev] [PATCH 0/2] Fix vhost performance regression

[Maxime Coquelin <maxime.coquelin@redhat.com>]

Hi Yinan,

On 7/24/20 6:55 AM, Wang, Yinan wrote:
> Hi Maxime,
> 
> The performance drop issue can be fixed, thanks!
> The multi-queues interrupt issue still exist w/ this patch set.

Thanks for the test report, so that's only half good.
I'm setting up the multi-queues interrupt test case to further debug it.

Regards,
Maxime

> BR,
> Yinan
> 
>> -----Original Message-----
>> From: Maxime Coquelin <maxime.coquelin@redhat.com>
>> Sent: 2020?7?23? 21:09
>> To: dev@dpdk.org; matan@mellanox.com; Xia, Chenbo
>> <chenbo.xia@intel.com>; Liu, Yong <yong.liu@intel.com>; Wang, Yinan
>> <yinan.wang@intel.com>
>> Cc: thomas@monjalon.net; Yigit, Ferruh <ferruh.yigit@intel.com>;
>> david.marchand@redhat.com; Maxime Coquelin
>> <maxime.coquelin@redhat.com>
>> Subject: [PATCH 0/2] Fix vhost performance regression
>>
>> Hi,
>>
>> This series aims at fixing the performance degradation reported
>> by Intel QE. I managed to reproduce the issue, and this series
>> fixes it.
>>
>> I only tested the first test case provided in the Bz[0], but wanted
>> to send early for Intel QE to try and confirm it solves the issue.
>>
>> I will work on reproducing the other test cases, and see if this
>> also fixes them.
>>
>> Thanks to Intel QE team for finding this issue.
>> Maxime
>>
>> [0]: https://bugs.dpdk.org/show_bug.cgi?id=507#c0
>>
>> Maxime Coquelin (2):
>>   vhost: fix guest notification setting
>>   net/vhost: fix queue update
>>
>>  drivers/net/vhost/rte_eth_vhost.c | 25 ++++++-------------------
>>  lib/librte_vhost/vhost.c          | 24 ++++++++++++++++++++----
>>  lib/librte_vhost/vhost.h          |  5 +++++
>>  lib/librte_vhost/vhost_user.c     | 11 ++++++++---
>>  4 files changed, 39 insertions(+), 26 deletions(-)
>>
>> --
>> 2.26.2
>