From: bugzilla-daemon@kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 217965] ext4(?) regression since 6.5.0 on sata hdd
Date: Fri, 17 Nov 2023 01:40:56 +0000 [thread overview]
Message-ID: <bug-217965-13602-J5OFfrmSGB@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-217965-13602@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=217965
--- Comment #35 from Eyal Lebedinsky (bugzilla@eyal.emu.id.au) ---
$ sudo dnf debuginfo-install kernel
Installing:
kernel-debuginfo
Installing dependencies:
kernel-debuginfo-common-x86_64
$ sudo perf probe -a "ext4_mb_find_good_group_avg_frag_lists order"
$ sudo perf probe -a "ext4_mb_find_good_group_avg_frag_lists:18 cr
iter->bb_group"
$ sudo perf record -e probe:ext4_mb_find_good_group_avg_frag_lists -e
probe:ext4_mb_find_good_group_avg_frag_lists_L18 -e
probe:ext4_mb_good_group_L20 -e ext4:ext4_mballoc_alloc -g -p 2789843 sleep 20
$ sudo perf script -i perf.data > perf-probe.log
[ perf record: Woken up 1395 times to write data ]
Warning:
Processed 24640612 events and lost 22 chunks!
Check IO/CPU overload!
[ perf record: Captured and wrote 4725.791 MB perf.data (19187380 samples) ]
$ sudo perf script -i perf.data > perf-probe.log
Warning:
Processed 24640612 events and lost 22 chunks!
Check IO/CPU overload!
$ ls -l perf-probe.log
-rw-r--r-- 1 eyal eyal 39024390135 Nov 17 12:31 perf-probe.log
I am limited to upload much less that this as an attachment.
File size limit: 5120 KB)
I managed to include only so many likes ftom the head:
$ wc -l perf-probe-head.log
51594 perf-probe-head.log
See attachement https://bugzilla.kernel.org/attachment.cgi?id=305414
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next prev parent reply other threads:[~2023-11-17 1:40 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-02 8:10 [Bug 217965] New: ext4(?) regression since 6.5.0 on sata hdd bugzilla-daemon
2023-10-02 8:52 ` [Bug 217965] " bugzilla-daemon
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