https://bugzilla.suse.com/show_bug.cgi?id=1227180
Bug ID: 1227180
Summary: Potential regression io-io_uring-nops reports 3-8%
decrease in mainline
Classification: openSUSE
Product: openSUSE Tumbleweed
Version: Current
Hardware: Other
OS: Other
Status: NEW
Severity: Normal
Priority: P5 - None
Component: Kernel
Assignee: kernel-bugs@opensuse.org
Reporter: gabriel.bertazi@suse.com
QA Contact: qa-bugs@suse.de
Target Milestone: ---
Found By: ---
Blocker: ---
grid Infrastructure reports a 3-8% regression on io_uring nops test, found on
Simba2 test potentially introduced by:
Report Message-ID (Internal: <667e4b04./dspYBfaSWvQlPH0%root@laplace.suse.de>)
Last Good/First Bad commit
==========================
Last good commit: 23fbdde6205d9351bb52a4b8f11ec38bdbc8561a
First bad commit: 0667db14e1f029d56243aa2509ebc5f944388200
From 0667db14e1f029d56243aa2509ebc5f944388200 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov
Date: Mon, 18 Mar 2024 22:00:34 +0000
Subject: [PATCH] io_uring: refactor io_req_complete_post()
Comparison
==========
initial initial
last penup last penup
first
good-96fca68c4fbf bad-afcd48134c58
bad-6498c5c9 bad-87585b05 good-23fbdde6
good-e5c12945 bad-0667db14
Min kIOPS 1429690.00 ( 0.00%) 1321070.00 ( -7.60%) 1384300.00 (
-3.17%) 1387440.00 ( -2.96%) 1447660.00 ( 1.26%) 1440670.00 ( 0.77%)
1383010.00 ( -3.27%)
Hmean kIOPS 1593231.10 ( 0.00%) 1465349.28 * -8.03%* 1538450.10 *
-3.44%* 1529321.56 * -4.01%* 1594227.00 ( 0.06%) 1595295.82 ( 0.13%)
1539502.39 * -3.37%*
Stddev kIOPS 20306.39 ( 0.00%) 18381.94 ( 9.48%) 18745.79 (
7.69%) 16745.21 ( 17.54%) 17985.08 ( 11.43%) 18572.15 ( 8.54%)
18746.99 ( 7.68%)
CoeffVar kIOPS 1.27 ( 0.00%) 1.25 ( 1.58%) 1.22 (
4.40%) 1.09 ( 14.09%) 1.13 ( 11.48%) 1.16 ( 8.66%)
1.22 ( 4.46%)
Max kIOPS 1596750.00 ( 0.00%) 1469160.00 ( -7.99%) 1541920.00 (
-3.43%) 1532590.00 ( -4.02%) 1597540.00 ( 0.05%) 1598520.00 ( 0.11%)
1542790.00 ( -3.38%)
BHmean-50 kIOPS 1596569.59 ( 0.00%) 1468943.05 ( -7.99%) 1541505.71 (
-3.45%) 1532015.50 ( -4.04%) 1597234.47 ( 0.04%) 1598279.59 ( 0.11%)
1542587.95 ( -3.38%)
BHmean-95 kIOPS 1596456.58 ( 0.00%) 1468444.20 ( -8.02%) 1541379.66 (
-3.45%) 1531885.72 ( -4.04%) 1597010.06 ( 0.03%) 1598150.62 ( 0.11%)
1542470.52 ( -3.38%)
BHmean-99 kIOPS 1595092.95 ( 0.00%) 1466984.13 ( -8.03%) 1540200.20 (
-3.44%) 1530919.05 ( -4.02%) 1595875.70 ( 0.05%) 1597044.89 ( 0.12%)
1541282.00 ( -3.37%)
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