On Wed, Mar 19, 2014 at 3:29 PM, Ben Pfaff <[email protected]> wrote:
> On Wed, Mar 19, 2014 at 03:16:37PM -0700, Pravin Shelar wrote:
>> On Wed, Mar 19, 2014 at 11:08 AM, Ben Pfaff <[email protected]> wrote:
>> > On Tue, Mar 18, 2014 at 01:53:27PM -0700, Pravin wrote:
>> > Polling the atomic variable only every 67,108,864 times through the
>> > loop seems pretty conservative. (Does that even poll once a second?)
>> >
>> I am not sure how to calculate one second in this loop efficiently.
>> But I will try to use poll() rather than atomic variable here.
>
> All I mean is that 64 million is a very large number and seems like it
> might introduce a long delay, especially if packets are arriving
> quickly. If we reduce the number to, say, 1000, does it slow
> operation down too much?
>
If I drop to 1000, I am pretty sure that performance will go down.
Last time I checked this value need to be in million on bare metal
machine.
I am not worried about delay, since it only affects how soon we start
polling device once we add it to datapath. That should be rare
operation.
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