Re: GIN predicate locking slows down valgrind isolationtests tremendously

From: Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>
To: Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Teodor Sigaev <teodor(at)sigaev(dot)ru>, Shubham Barai <shubhambaraiss(at)gmail(dot)com>, Dmitry Ivanov <d(dot)ivanov(at)postgrespro(dot)ru>
Subject: Re: GIN predicate locking slows down valgrind isolationtests tremendously
Date: 2018-12-25 01:17:13
Message-ID: CAPpHfdt--73PNZOrctZJJ7wnkEhbEDjMKKzL_TMPnsebjEKmBw@mail.gmail.com
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On Tue, Dec 25, 2018 at 1:48 AM Andrew Dunstan
<andrew(dot)dunstan(at)2ndquadrant(dot)com> wrote:
> On 12/24/18 5:25 PM, Alexander Korotkov wrote:
> > On Fri, Dec 21, 2018 at 1:50 AM Alexander Korotkov
> > <a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> >> чт, 20 дек. 2018 г., 2:22 Andres Freund andres(at)anarazel(dot)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

Thank you!

------
Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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