[ovs-dev] [PATCH] bond: raise minimal bond distribution per interface

Andy Zhou azhou at nicira.com
Wed May 7 20:30:59 UTC 2014


Yamamoto san, would you please take a look?

On Wed, May 7, 2014 at 11:10 AM, Ben Pfaff <blp at nicira.com> wrote:
> On Tue, May 06, 2014 at 10:46:45PM -0700, Andy Zhou wrote:
>> Raise the minimal per interface packet distribution from 7 to 24.
>>
>> With 256 packet distributing to 3 interfaces, the expected packets per
>> interface should be 256/3 = 85.3
>>
>> Tested with 200 runs, the average number of packet per interface is
>> 85.9. close to the expected number, standard deviation within the 200
>> run is 24.4. Tested with 2x standard deviation with 10K test runs,
>> got around 0.1% failure rate. 2.5x standard deviation passes 100K test
>> runs without failure.
>>
>> Using 2.5x for the unit test, 83.5 - 2.5 * 24.4, Round down to the
>> whole number of 24.
>>
>> Signed-off-by: Andy Zhou <azhou at nicira.com>
>
> I think that whoever had test failures for this test previously (not
> me) should probably test this before we push it.



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