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* [Bug libc/25856] New: pgbench performance degradation on glibc 2.31
@ 2020-04-20 5:16 mc_george123 at hotmail dot com
2020-04-20 5:31 ` [Bug libc/25856] " fw at deneb dot enyo.de
0 siblings, 1 reply; 2+ messages in thread
From: mc_george123 at hotmail dot com @ 2020-04-20 5:16 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=25856
Bug ID: 25856
Summary: pgbench performance degradation on glibc 2.31
Product: glibc
Version: 2.31
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: mc_george123 at hotmail dot com
CC: drepper.fsp at gmail dot com
Target Milestone: ---
We detected
pgbench(https://openbenchmarking.org/innhold/c33edd402fb7970f7b1e8dc476cdba8497490da7)
degradation which was about 10% on the Clear Linux 32530. After analysis, the
issue was caused by the glibc upstream upgrade (from 2.28 to 2.31).
pgbench-1.9.1(HIB) Scaling: On-Disk - Test: Heavy Contention - Mode: Read
Write
glibc 2.31 7938.144
glibc 2.28 8720.136
pgbench-1.9.1(HIB) Scaling: On-Disk - Test: Single Thread - Mode: Read Write
glibc 2.31 988.608
glibc 2.28 1111.292
Please help to root cause the regression.
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* [Bug libc/25856] pgbench performance degradation on glibc 2.31
2020-04-20 5:16 [Bug libc/25856] New: pgbench performance degradation on glibc 2.31 mc_george123 at hotmail dot com
@ 2020-04-20 5:31 ` fw at deneb dot enyo.de
0 siblings, 0 replies; 2+ messages in thread
From: fw at deneb dot enyo.de @ 2020-04-20 5:31 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=25856
Florian Weimer <fw at deneb dot enyo.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fw at deneb dot enyo.de
Ever confirmed|0 |1
Flags| |security-
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2020-04-20
--- Comment #1 from Florian Weimer <fw at deneb dot enyo.de> ---
Have you discussed this yet with the Clear Linux developers? Thanks.
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2020-04-20 5:16 [Bug libc/25856] New: pgbench performance degradation on glibc 2.31 mc_george123 at hotmail dot com
2020-04-20 5:31 ` [Bug libc/25856] " fw at deneb dot enyo.de
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