[ovs-dev] [PATCH ovs resend v2] dpctl-netdev: Add the option "pmd" for dump-flows

Tonghao Zhang xiangxia.m.yue at gmail.com
Mon Sep 7 05:29:09 UTC 2020

On Thu, Sep 3, 2020 at 8:51 PM Ilya Maximets <i.maximets at ovn.org> wrote:
> On 8/24/20 4:44 AM, xiangxia.m.yue at gmail.com wrote:
> > From: Tonghao Zhang <xiangxia.m.yue at gmail.com>
> >
> > "ovs-appctl dpctl/dump-flows" added the option
> > "pmd" which allow user to dump pmd specified.
> >
> > That option is useful to dump rules of pmd
> > when we have a large number of rules in dp.
> Is this a performance concern or just a matter of output readability?
Yes, performance and the matter of output are considered. Think about
there is a lots of flows on every
pmd which may be offloaded.
> In case it's only to reduce the size of a printed data, we could just
> avoid printing flows from PMDs other than requested the same way as
> other filters work without flow_dump API modifications. This will be
> much more simple change.
> What do you think?
> Best regards, Ilya Maximets.

Best regards, Tonghao

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