netdev - Re: [PATCH bpf-next 3/5] selftests/bpf: test

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Date:   Mon, 21 May 2018 10:13:02 -0700
From:   John Fastabend <john.fastabend@...il.com>
To:     Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Shuah Khan <shuah@...nel.org>, netdev@...r.kernel.org
Subject: Re: [PATCH bpf-next 3/5] selftests/bpf: test_sockmap, fix test
 timeout

On 05/20/2018 10:15 PM, Prashant Bhole wrote:
> 
> 
> On 5/19/2018 1:47 AM, John Fastabend wrote:
>> On 05/18/2018 12:17 AM, Prashant Bhole wrote:
>>> In order to reduce runtime of tests, recently timout for select() call
>>> was reduced from 1sec to 10usec. This was causing many tests failures.
>>> It was caught with failure handling commits in this series.
>>>
>>> Restoring the timeout from 10usec to 1sec
>>>
>>> Fixes: a18fda1a62c3 ("bpf: reduce runtime of test_sockmap tests")
>>> Signed-off-by: Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>
>>> ---
>>
>> Whats the runtime for the entire test suite after this? I agree
>> I was probably to aggressive in setting this but on the other
>> hand I was trying to avoid letting the test run for minutes.
>>
> 
> Currently any failure stops further tests.
> So I made local change to force cork=0. With this change, it takes
> around 60 seconds for all 648 tests. It will change after fixing cork
> tests.
> 
> -Prashant
> 


OK, lets see how long it takes with the cork tests fixed. Maybe if
the cork flag is set we should lower the timeout to 100us.

.John