From: bugzilla-daemon@kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 217965] ext4(?) regression since 6.5.0 on sata hdd
Date: Sat, 06 Jan 2024 03:18:01 +0000 [thread overview]
Message-ID: <bug-217965-13602-nVpVMbmHGs@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 #64 from Matthew Stapleton (matthew4196@gmail.com) ---
After patching ext4_mb_choose_next_group set of functions with
noinline_for_stack, perf is now including those in the report: perf report
--stdio -i perf.data . That usage in ext4_mb_regular_allocator is only about
1.39% (compared to 17.59 for ext4_get_group_desc and ext4_get_group_info) with
ext4_mb_choose_next_group_goal_fast using 0.74% and
ext4_mb_choose_next_group_best_avail using 0.58% which indicates
ext4_mb_choose_next_group_best_avail isn't stalling for me like it was before.
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next prev parent reply other threads:[~2024-01-06 3:18 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
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