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* [Bug target/112915] New: [14 Regression] ~4-11% exec time regression of 454.calculix on AMD Zen2
@ 2023-12-08 7:38 fkastl at suse dot cz
2023-12-08 7:42 ` [Bug target/112915] [14 Regression] 4% " fkastl at suse dot cz
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: fkastl at suse dot cz @ 2023-12-08 7:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112915
Bug ID: 112915
Summary: [14 Regression] ~4-11% exec time regression of
454.calculix on AMD Zen2
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: needs-bisection
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: fkastl at suse dot cz
Target Milestone: ---
Host: x86_64-linux
Target: x86_64-linux
Between commits
g:cff1fa6625d1273f
and
g:8b9d0e8cf482287b
there's a slowdown of 454.calculix 2006 SPEC. 11% regression seen on the graph
here (Zen2 machine):
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=288.170.0
I've also replicated this on another Zen2 machine and got 4% slowdown. I
haven't seen this slowdown on other architectures.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/112915] [14 Regression] 4% exec time regression of 454.calculix on AMD Zen2
2023-12-08 7:38 [Bug target/112915] New: [14 Regression] ~4-11% exec time regression of 454.calculix on AMD Zen2 fkastl at suse dot cz
@ 2023-12-08 7:42 ` fkastl at suse dot cz
2023-12-08 7:48 ` fkastl at suse dot cz
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: fkastl at suse dot cz @ 2023-12-08 7:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112915
--- Comment #1 from Filip Kastl <fkastl at suse dot cz> ---
I checked again and its actually a 4% regression on both machines, my bad.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/112915] [14 Regression] 4% exec time regression of 454.calculix on AMD Zen2
2023-12-08 7:38 [Bug target/112915] New: [14 Regression] ~4-11% exec time regression of 454.calculix on AMD Zen2 fkastl at suse dot cz
2023-12-08 7:42 ` [Bug target/112915] [14 Regression] 4% " fkastl at suse dot cz
@ 2023-12-08 7:48 ` fkastl at suse dot cz
2023-12-08 8:24 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: fkastl at suse dot cz @ 2023-12-08 7:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112915
--- Comment #2 from Filip Kastl <fkastl at suse dot cz> ---
The options are -Ofast -march=native -mtune=native LTO and PGO
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/112915] [14 Regression] 4% exec time regression of 454.calculix on AMD Zen2
2023-12-08 7:38 [Bug target/112915] New: [14 Regression] ~4-11% exec time regression of 454.calculix on AMD Zen2 fkastl at suse dot cz
2023-12-08 7:42 ` [Bug target/112915] [14 Regression] 4% " fkastl at suse dot cz
2023-12-08 7:48 ` fkastl at suse dot cz
@ 2023-12-08 8:24 ` rguenth at gcc dot gnu.org
2024-03-07 20:59 ` law at gcc dot gnu.org
2024-05-07 7:43 ` [Bug target/112915] [14/15 " rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-12-08 8:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112915
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target Milestone|--- |14.0
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/112915] [14 Regression] 4% exec time regression of 454.calculix on AMD Zen2
2023-12-08 7:38 [Bug target/112915] New: [14 Regression] ~4-11% exec time regression of 454.calculix on AMD Zen2 fkastl at suse dot cz
` (2 preceding siblings ...)
2023-12-08 8:24 ` rguenth at gcc dot gnu.org
@ 2024-03-07 20:59 ` law at gcc dot gnu.org
2024-05-07 7:43 ` [Bug target/112915] [14/15 " rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: law at gcc dot gnu.org @ 2024-03-07 20:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112915
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |law at gcc dot gnu.org
Priority|P3 |P2
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/112915] [14/15 Regression] 4% exec time regression of 454.calculix on AMD Zen2
2023-12-08 7:38 [Bug target/112915] New: [14 Regression] ~4-11% exec time regression of 454.calculix on AMD Zen2 fkastl at suse dot cz
` (3 preceding siblings ...)
2024-03-07 20:59 ` law at gcc dot gnu.org
@ 2024-05-07 7:43 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-05-07 7:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112915
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|14.0 |14.2
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 14.1 is being released, retargeting bugs to GCC 14.2.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2024-05-07 7:43 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2023-12-08 7:38 [Bug target/112915] New: [14 Regression] ~4-11% exec time regression of 454.calculix on AMD Zen2 fkastl at suse dot cz
2023-12-08 7:42 ` [Bug target/112915] [14 Regression] 4% " fkastl at suse dot cz
2023-12-08 7:48 ` fkastl at suse dot cz
2023-12-08 8:24 ` rguenth at gcc dot gnu.org
2024-03-07 20:59 ` law at gcc dot gnu.org
2024-05-07 7:43 ` [Bug target/112915] [14/15 " rguenth at gcc dot gnu.org
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