Horton

Re: pgbench: option delaying queries till connections establishment?

Daniel Gustafsson <daniel@yesql.se>

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From: Daniel Gustafsson <daniel@yesql.se>
To: Fabien COELHO <coelho@cri.ensmp.fr>
Cc: Andres Freund <andres@anarazel.de>, pgsql-hackers@postgresql.org
Date: 2020-07-03T09:21:17Z
Lists: pgsql-hackers 
> On 17 May 2020, at 11:55, Fabien COELHO <coelho@cri.ensmp.fr> wrote:

> I have split the patch.
> 
> * First patch reworks time measurements in pgbench.

> * Second patch adds a barrier before starting the bench
> 
> It applies on top of the previous one. The initial imbalance due to thread creation times is smoothed.

The usecs patch fails to apply to HEAD, can you please submit a rebased version
of this patchset.  Also, when doing so, can you please rename the patches such
that sort alphabetically in the order in which they are intended to be applied.
The CFBot patch tester will otherwise try to apply them out of order which
cause errors.

cheers ./daniel

Commits

  1. Fix new pthread code to respect --disable-thread-safety.

  2. Add missing pthread_barrier_t.

  3. pgbench: Improve time logic.

  4. pgbench: Refactor thread portability support.

  5. pgbench: Synchronize client threads.

  6. Fix bogus logic for skipping unnecessary partcollation dependencies.