Re: GIN predicate locking slows down valgrind isolationtests tremendously

On 12/24/18 5:47 PM, Andrew Dunstan wrote:
> On 12/24/18 5:25 PM, Alexander Korotkov wrote:
>> On Fri, Dec 21, 2018 at 1:50 AM Alexander Korotkov
>> <a.korotkov@postgrespro.ru> wrote:
>>> чт, 20 дек. 2018 г., 2:22 Andres Freund andres@anarazel.de:
>>>> On 2018-12-03 16:07:40 -0800, Andres Freund wrote:
>>>>> As far as I can tell that increase comes laregely from the new GIN
>>>>> tests.  Could one of you please look at keeping the test time increase
>>>>> to something more reasonable?
>>>> Ping?
>>>>
>>>> It's also one of the slowest tests outside of valgrind...
>>> I'm going to take a look on that.
>> BTW, patch for reducing isolation testing for gin predicate locking is
>> attached.  Could anybody check its execution time with valgrind (and
>> compare with execution time of previous test suite)?
>
>
> Will try if I get some time to spare in the next 72 hours or so
>
>

The latest test on lousyjack ran with this applied. The isolation tests
went from 285 minutes to 65 minutes.


So +1 for applying this.


cheers


andrew


-- 
Andrew Dunstan                https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services