Re: [HACKERS] [POC] Faster processing at Gather node
От | Andres Freund |
---|---|
Тема | Re: [HACKERS] [POC] Faster processing at Gather node |
Дата | |
Msg-id | 0EF30FB1-2B27-4432-BF72-D85CEFDF6CF6@anarazel.de обсуждение исходный текст |
Ответ на | Re: [HACKERS] [POC] Faster processing at Gather node ("Jim Van Fleet" <vanfleet@us.ibm.com>) |
Список | pgsql-hackers |
Hi, On November 5, 2017 1:33:24 PM PST, Jim Van Fleet <vanfleet@us.ibm.com> wrote: >Ran this change with hammerdb on a power 8 firestone > >with 2 socket, 20 core >9.6 base -- 451991 NOPM >0926_master -- 464385 NOPM >11_04master -- 449177 NOPM >11_04_patch -- 431423 NOPM >-- two socket patch is a little down from previous base runs > >With one socket >9.6 base -- 393727 NOPM >v10rc1_base -- 350958 NOPM >11_04master -- 306506 NOPM >11_04_patch -- 313179 NOPM >-- one socket 11_04 master is quite a bit down from 9.6 and >v10rc1_base >-- the patch is up a bit over the base > >Net -- the patch is about the same as current base on two socket, and >on >one socket -- consistent with your pgbench (?) findings > >As an aside, it is perhaps a worry that one socket is down over 20% >from >9.6 and over 10% from v10rc1 What query(s) did you measure? Andres -- Sent from my Android device with K-9 Mail. Please excuse my brevity. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
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