On Fri, Oct 18, 2013 at 8:25 AM, Andy Zhou wrote:
> Do we still need a spinlock when we have per-cpu counters?
>
Yes, cmd OVS_FLOW_ATTR_CLEAR needs clear stats. So lock is required
for atomic reset.
>
> On Fri, Oct 18, 2013 at 8:11 AM, Pravin B Shelar wrote:
>>
>> With mega flow implementation
Do we still need a spinlock when we have per-cpu counters?
On Fri, Oct 18, 2013 at 8:11 AM, Pravin B Shelar wrote:
> With mega flow implementation ovs flow can be shared between
> multiple CPUs which makes stats updates highly contended
> operation. Following patch allocates separate stats for
With mega flow implementation ovs flow can be shared between
multiple CPUs which makes stats updates highly contended
operation. Following patch allocates separate stats for each
CPU to make stats update scalable.
Signed-off-by: Pravin B Shelar
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datapath/datapath.c | 54 ++