On 2018-Jul-11, David Rowley wrote:

> On 6 July 2018 at 21:25, Kato, Sho <kato-...@jp.fujitsu.com> wrote:
> > 2. 11beta2 + patch1 + patch2
> >
> > patch1: Allow direct lookups of AppendRelInfo by child relid
> >         commit 7d872c91a3f9d49b56117557cdbb0c3d4c620687
> > patch2: 0001-Speed-up-INSERT-and-UPDATE-on-partitioned-tables.patch
> >
> >  part_num |   tps_ex    | latency_avg | update_latency | select_latency | 
> > insert_latency
> > ----------+-------------+-------------+----------------+----------------+----------------
> >       100 | 1224.430344 |       0.817 |          0.551 |          0.085 |   
> >        0.048
> >       200 |  689.567511 |        1.45 |           1.12 |          0.119 |   
> >         0.05
> >       400 |  347.876616 |       2.875 |          2.419 |          0.185 |   
> >        0.052
> >       800 |  140.489269 |       7.118 |          6.393 |          0.329 |   
> >        0.059
> >      1600 |   29.681672 |      33.691 |         31.272 |          1.517 |   
> >        0.147
> >      3200 |    7.021957 |     142.412 |          136.4 |          4.033 |   
> >        0.214
> >      6400 |    1.462949 |     683.557 |        669.187 |          7.677 |   
> >        0.264

> Just a note to say that the "Allow direct lookups of AppendRelInfo by
> child relid" patch is already in master. It's much more relevant to be
> testing with master than pg11. This patch is not intended for pg11.

That commit is also in pg11, though -- just not in beta2.  So we still
don't know how much of an improvement patch2 is by itself :-)

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

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