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[ovs-dev,net-next,v4,00/10] optimize openvswitch flow looking up

Message ID 1571135440-24313-1-git-send-email-xiangxia.m.yue@gmail.com
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Series optimize openvswitch flow looking up | expand

Message

Tonghao Zhang Oct. 15, 2019, 10:30 a.m. UTC
From: Tonghao Zhang <xiangxia.m.yue@gmail.com>

This series patch optimize openvswitch for performance or simplify
codes.

Patch 1, 2, 4: Port Pravin B Shelar patches to
linux upstream with little changes.

Patch 5, 6, 7: Optimize the flow looking up and
simplify the flow hash.

Patch 8, 9: are bugfix.

The performance test is on Intel Xeon E5-2630 v4.
The test topology is show as below:

+-----------------------------------+
|   +---------------------------+   |
|   | eth0   ovs-switch    eth1 |   | Host0
|   +---------------------------+   |
+-----------------------------------+
      ^                       |
      |                       |
      |                       |
      |                       |
      |                       v
+-----+----+             +----+-----+
| netperf  | Host1       | netserver| Host2
+----------+             +----------+

We use netperf send the 64B packets, and insert 255+ flow-mask:
$ ovs-dpctl add-flow ovs-switch "in_port(1),eth(dst=00:01:00:00:00:00/ff:ff:ff:ff:ff:01),eth_type(0x0800),ipv4(frag=no)" 2
...
$ ovs-dpctl add-flow ovs-switch "in_port(1),eth(dst=00:ff:00:00:00:00/ff:ff:ff:ff:ff:ff),eth_type(0x0800),ipv4(frag=no)" 2
$
$ netperf -t UDP_STREAM -H 2.2.2.200 -l 40 -- -m 18

* Without series patch, throughput 8.28Mbps
* With series patch, throughput 46.05Mbps

v3->v4:
access ma->count with READ_ONCE/WRITE_ONCE API. More information,
see patch 5 comments. 

v2->v3:
update ma point when realloc mask_array in patch 5.

v1->v2:
use kfree_rcu instead of call_rcu

Tonghao Zhang (10):
  net: openvswitch: add flow-mask cache for performance
  net: openvswitch: convert mask list in mask array
  net: openvswitch: shrink the mask array if necessary
  net: openvswitch: optimize flow mask cache hash collision
  net: openvswitch: optimize flow-mask looking up
  net: openvswitch: simplify the flow_hash
  net: openvswitch: add likely in flow_lookup
  net: openvswitch: fix possible memleak on destroy flow-table
  net: openvswitch: don't unlock mutex when changing the user_features
    fails
  net: openvswitch: simplify the ovs_dp_cmd_new

 net/openvswitch/datapath.c   |  65 +++++----
 net/openvswitch/flow.h       |   1 -
 net/openvswitch/flow_table.c | 316 +++++++++++++++++++++++++++++++++++++------
 net/openvswitch/flow_table.h |  19 ++-
 4 files changed, 329 insertions(+), 72 deletions(-)

Comments

David Miller Oct. 17, 2019, 7:22 p.m. UTC | #1
From: xiangxia.m.yue@gmail.com
Date: Tue, 15 Oct 2019 18:30:30 +0800

> This series patch optimize openvswitch for performance or simplify
> codes.
 ...

Pravin and company, please review!
Gregory Rose Oct. 17, 2019, 8:29 p.m. UTC | #2
On 10/17/2019 12:22 PM, David Miller wrote:
> From: xiangxia.m.yue@gmail.com
> Date: Tue, 15 Oct 2019 18:30:30 +0800
>
>> This series patch optimize openvswitch for performance or simplify
>> codes.
>   ...
>
> Pravin and company, please review!

Hi Dave,

I've tested the patches and provided my 'Tested-by' tag.  Pravin has had 
some suggestions for versions 1-3 of these
patches so I'll let him provide the ack on this latest patch set.

Thanks,

- Greg
William Tu Oct. 21, 2019, 5:14 p.m. UTC | #3
On Wed, Oct 16, 2019 at 5:50 AM <xiangxia.m.yue@gmail.com> wrote:
>
> From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
>
> This series patch optimize openvswitch for performance or simplify
> codes.
>
> Patch 1, 2, 4: Port Pravin B Shelar patches to
> linux upstream with little changes.

btw, should we keep Pravin as the author of the above three patches?

Regards,
William

>
> Patch 5, 6, 7: Optimize the flow looking up and
> simplify the flow hash.
>
> Patch 8, 9: are bugfix.
>
> The performance test is on Intel Xeon E5-2630 v4.
> The test topology is show as below:
>
> +-----------------------------------+
> |   +---------------------------+   |
> |   | eth0   ovs-switch    eth1 |   | Host0
> |   +---------------------------+   |
> +-----------------------------------+
>       ^                       |
>       |                       |
>       |                       |
>       |                       |
>       |                       v
> +-----+----+             +----+-----+
> | netperf  | Host1       | netserver| Host2
> +----------+             +----------+
>
> We use netperf send the 64B packets, and insert 255+ flow-mask:
> $ ovs-dpctl add-flow ovs-switch "in_port(1),eth(dst=00:01:00:00:00:00/ff:ff:ff:ff:ff:01),eth_type(0x0800),ipv4(frag=no)" 2
> ...
> $ ovs-dpctl add-flow ovs-switch "in_port(1),eth(dst=00:ff:00:00:00:00/ff:ff:ff:ff:ff:ff),eth_type(0x0800),ipv4(frag=no)" 2
> $
> $ netperf -t UDP_STREAM -H 2.2.2.200 -l 40 -- -m 18
>
> * Without series patch, throughput 8.28Mbps
> * With series patch, throughput 46.05Mbps
>
> v3->v4:
> access ma->count with READ_ONCE/WRITE_ONCE API. More information,
> see patch 5 comments.
>
> v2->v3:
> update ma point when realloc mask_array in patch 5.
>
> v1->v2:
> use kfree_rcu instead of call_rcu
>
> Tonghao Zhang (10):
>   net: openvswitch: add flow-mask cache for performance
>   net: openvswitch: convert mask list in mask array
>   net: openvswitch: shrink the mask array if necessary
>   net: openvswitch: optimize flow mask cache hash collision
>   net: openvswitch: optimize flow-mask looking up
>   net: openvswitch: simplify the flow_hash
>   net: openvswitch: add likely in flow_lookup
>   net: openvswitch: fix possible memleak on destroy flow-table
>   net: openvswitch: don't unlock mutex when changing the user_features
>     fails
>   net: openvswitch: simplify the ovs_dp_cmd_new
>
>  net/openvswitch/datapath.c   |  65 +++++----
>  net/openvswitch/flow.h       |   1 -
>  net/openvswitch/flow_table.c | 316 +++++++++++++++++++++++++++++++++++++------
>  net/openvswitch/flow_table.h |  19 ++-
>  4 files changed, 329 insertions(+), 72 deletions(-)
>
> --
> 1.8.3.1
>
> _______________________________________________
> dev mailing list
> dev@openvswitch.org
> https://mail.openvswitch.org/mailman/listinfo/ovs-dev
Tonghao Zhang Oct. 22, 2019, 1:16 a.m. UTC | #4
On Tue, Oct 22, 2019 at 1:14 AM William Tu <u9012063@gmail.com> wrote:
>
> On Wed, Oct 16, 2019 at 5:50 AM <xiangxia.m.yue@gmail.com> wrote:
> >
> > From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> >
> > This series patch optimize openvswitch for performance or simplify
> > codes.
> >
> > Patch 1, 2, 4: Port Pravin B Shelar patches to
> > linux upstream with little changes.
>
> btw, should we keep Pravin as the author of the above three patches?
Agree, but how i can to that, these patches should be sent by Pravin ?
> Regards,
> William
>
> >
> > Patch 5, 6, 7: Optimize the flow looking up and
> > simplify the flow hash.
> >
> > Patch 8, 9: are bugfix.
> >
> > The performance test is on Intel Xeon E5-2630 v4.
> > The test topology is show as below:
> >
> > +-----------------------------------+
> > |   +---------------------------+   |
> > |   | eth0   ovs-switch    eth1 |   | Host0
> > |   +---------------------------+   |
> > +-----------------------------------+
> >       ^                       |
> >       |                       |
> >       |                       |
> >       |                       |
> >       |                       v
> > +-----+----+             +----+-----+
> > | netperf  | Host1       | netserver| Host2
> > +----------+             +----------+
> >
> > We use netperf send the 64B packets, and insert 255+ flow-mask:
> > $ ovs-dpctl add-flow ovs-switch "in_port(1),eth(dst=00:01:00:00:00:00/ff:ff:ff:ff:ff:01),eth_type(0x0800),ipv4(frag=no)" 2
> > ...
> > $ ovs-dpctl add-flow ovs-switch "in_port(1),eth(dst=00:ff:00:00:00:00/ff:ff:ff:ff:ff:ff),eth_type(0x0800),ipv4(frag=no)" 2
> > $
> > $ netperf -t UDP_STREAM -H 2.2.2.200 -l 40 -- -m 18
> >
> > * Without series patch, throughput 8.28Mbps
> > * With series patch, throughput 46.05Mbps
> >
> > v3->v4:
> > access ma->count with READ_ONCE/WRITE_ONCE API. More information,
> > see patch 5 comments.
> >
> > v2->v3:
> > update ma point when realloc mask_array in patch 5.
> >
> > v1->v2:
> > use kfree_rcu instead of call_rcu
> >
> > Tonghao Zhang (10):
> >   net: openvswitch: add flow-mask cache for performance
> >   net: openvswitch: convert mask list in mask array
> >   net: openvswitch: shrink the mask array if necessary
> >   net: openvswitch: optimize flow mask cache hash collision
> >   net: openvswitch: optimize flow-mask looking up
> >   net: openvswitch: simplify the flow_hash
> >   net: openvswitch: add likely in flow_lookup
> >   net: openvswitch: fix possible memleak on destroy flow-table
> >   net: openvswitch: don't unlock mutex when changing the user_features
> >     fails
> >   net: openvswitch: simplify the ovs_dp_cmd_new
> >
> >  net/openvswitch/datapath.c   |  65 +++++----
> >  net/openvswitch/flow.h       |   1 -
> >  net/openvswitch/flow_table.c | 316 +++++++++++++++++++++++++++++++++++++------
> >  net/openvswitch/flow_table.h |  19 ++-
> >  4 files changed, 329 insertions(+), 72 deletions(-)
> >
> > --
> > 1.8.3.1
> >
> > _______________________________________________
> > dev mailing list
> > dev@openvswitch.org
> > https://mail.openvswitch.org/mailman/listinfo/ovs-dev
William Tu Oct. 22, 2019, 3:44 p.m. UTC | #5
On Mon, Oct 21, 2019 at 6:16 PM Tonghao Zhang <xiangxia.m.yue@gmail.com> wrote:
>
> On Tue, Oct 22, 2019 at 1:14 AM William Tu <u9012063@gmail.com> wrote:
> >
> > On Wed, Oct 16, 2019 at 5:50 AM <xiangxia.m.yue@gmail.com> wrote:
> > >
> > > From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
> > >
> > > This series patch optimize openvswitch for performance or simplify
> > > codes.
> > >
> > > Patch 1, 2, 4: Port Pravin B Shelar patches to
> > > linux upstream with little changes.
> >
> > btw, should we keep Pravin as the author of the above three patches?
> Agree, but how i can to that, these patches should be sent by Pravin ?

you can send the patch, and use
git commit --amend --author=""
to change author

William