public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64
@ 2024-03-26 11:59 pheeck at gcc dot gnu.org
2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: pheeck at gcc dot gnu.org @ 2024-03-26 11:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481
Bug ID: 114481
Summary: [14 Regression] 14% exec time slowdown of 433.milc on
aarch64
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: missed-optimization, needs-bisection
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pheeck at gcc dot gnu.org
Blocks: 26163
Target Milestone: ---
Host: aarch64-gnu-linux
Target: aarch64-gnu-linux
As seen here
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=686.70.0
between the commits
g:8b483cd5521de79c
g:81ee1298b47d3f3b
there was an 14% runtime slowdown of 433.milc on aarch64. The CPU is Ampere
Altra Neoverse N1. The compilation options were -O2 -flto PGO.
---
Btw here is a plot that also includes GCC13 and GCC12.
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=686.70.0&plot.4=749.70.0&plot.5=869.70.0
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/114481] [14 Regression] 14% exec time slowdown of 433.milc on aarch64
2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org
@ 2024-03-26 12:00 ` pheeck at gcc dot gnu.org
2024-03-27 8:37 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pheeck at gcc dot gnu.org @ 2024-03-26 12:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481
Filip Kastl <pheeck at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/114481] [14 Regression] 14% exec time slowdown of 433.milc on aarch64
2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org
2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org
@ 2024-03-27 8:37 ` rguenth at gcc dot gnu.org
2024-03-28 10:31 ` [Bug target/114481] " pheeck at gcc dot gnu.org
2024-05-07 7:45 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-03-27 8:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Looks like speed is back to 12/13, so possibly not a regression.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/114481] 14% exec time slowdown of 433.milc on aarch64
2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org
2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org
2024-03-27 8:37 ` rguenth at gcc dot gnu.org
@ 2024-03-28 10:31 ` pheeck at gcc dot gnu.org
2024-05-07 7:45 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: pheeck at gcc dot gnu.org @ 2024-03-28 10:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481
Filip Kastl <pheeck at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[14 Regression] 14% exec |14% exec time slowdown of
|time slowdown of 433.milc |433.milc on aarch64
|on aarch64 |
--- Comment #2 from Filip Kastl <pheeck at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> Looks like speed is back to 12/13, so possibly not a regression.
Ah, I misunderstood what [14 Regression] means exactly. I'll remove it from the
bug's name.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/114481] 14% exec time slowdown of 433.milc on aarch64
2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org
` (2 preceding siblings ...)
2024-03-28 10:31 ` [Bug target/114481] " pheeck at gcc dot gnu.org
@ 2024-05-07 7:45 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-05-07 7:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481
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] 5+ messages in thread
end of thread, other threads:[~2024-05-07 7:45 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org
2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org
2024-03-27 8:37 ` rguenth at gcc dot gnu.org
2024-03-28 10:31 ` [Bug target/114481] " pheeck at gcc dot gnu.org
2024-05-07 7:45 ` rguenth at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).