| From: | Васильев Дмитрий <d(dot)vasilyev(at)postgrespro(dot)ru> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Performance degradation in commit ac1d794 |
| Date: | 2015-12-25 17:08:15 |
| Message-ID: | CAB-SwXZh44_2ybvS5Z67p_CDz=XFn4hNAD=CnMEF+QqkXwFrGg@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Hello hackers!
I suddenly found commit ac1d794 gives up to 3 times performance degradation.
I tried to run pgbench -s 1000 -j 48 -c 48 -S -M prepared on 70 CPU-core
machine:
commit ac1d794 gives me 363,474 tps
and previous commit a05dc4d gives me 956,146
and master( 3d0c50f ) with revert ac1d794 gives me 969,265
it's shocking
---
Dmitry Vasilyev
Postgres Professional: http://www.postgrespro.com
Russian Postgres Company
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Andres Freund | 2015-12-25 17:18:47 | Re: Performance degradation in commit ac1d794 |
| Previous Message | Vinayak Pokale | 2015-12-25 12:46:06 | Re: [PROPOSAL] VACUUM Progress Checker. |