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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id m7-20020a056402510700b00530c46e2b3csi6351480edd.258.2023.11.15.20.05.07 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Nov 2023 20:05:07 -0800 (PST) Received-SPF: pass (google.com: domain of linux-ext4+bounces-19-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=LpHNYzbE; spf=pass (google.com: domain of linux-ext4+bounces-19-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-ext4+bounces-19-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No 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bh=FDS4DjDAG2aYZV1d73ON4rc23P2MhmqHR5szrYqu5EE=; h=From:To:Subject:Date:In-Reply-To:References:From; b=LpHNYzbEg8E/zBc0Z4ehzEdHeNIzzD1blq8+a5TztVLLLlxiQUorCc9glBG7WJ2hr rwt+/pcaDclBG8vilKrCBEtgQe5q+cpjKsrAwYR4zBUnAcdFaK+OikR2joVT65V+Dx lLCcu5tj1PE6QJSgeuupzaV0pZe4zDnpWOoW9xHhV/BR2bOXcJjIOJzqUeTQNF6QjM ++mO5KcCcLMtCLLcGM2roDHyR1CkYgAps8JywvSFEJWfjglkkzUCYQnB1bgKDMWgLX g+ryiWNIOqkWoHB2f9OT/v9wdHVoUzDty6cBh6LsU9chEkWoA4GRfqQvgnb3YYWBP4 8fy6F4qj4Q2aA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 9EC79C4332E; Thu, 16 Nov 2023 04:05:00 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-ext4@vger.kernel.org Subject: [Bug 217965] ext4(?) regression since 6.5.0 on sata hdd Date: Thu, 16 Nov 2023 04:05:00 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Product: File System X-Bugzilla-Component: ext4 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: bugzilla@eyal.emu.id.au X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D217965 --- Comment #28 from Eyal Lebedinsky (bugzilla@eyal.emu.id.au) --- $ sudo perf record -p 1531839 -g sleep 60 [ perf record: Woken up 191 times to write data ] [ perf record: Captured and wrote 47.856 MB perf.data (238391 samples) ] $ sudo perf report --no-children --stdio -i perf.data # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 238K of event 'cycles:P' # Event count (approx.): 262920477580 # # Overhead Command Shared Object Symbol=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 # ........ ............... .................=20 .......................................... # 58.48% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_good_group |=20=20=20=20=20=20=20=20=20=20 |--56.07%--ext4_mb_good_group | |=20=20=20=20=20=20=20=20=20=20 | --55.85%--ext4_mb_find_good_group_avg_frag_lists | ext4_mb_regular_allocator | ext4_mb_new_blocks | ext4_ext_map_blocks | ext4_map_blocks | ext4_do_writepages | ext4_writepages | do_writepages | __writeback_single_inode | writeback_sb_inodes | __writeback_inodes_wb | wb_writeback | wb_workfn | process_one_work | worker_thread | kthread | ret_from_fork | ret_from_fork_asm |=20=20=20=20=20=20=20=20=20=20 --2.16%--ext4_get_group_info ext4_mb_good_group |=20=20=20=20=20=20=20=20=20=20 --2.16%--ext4_mb_find_good_group_avg_frag_lists ext4_mb_regular_allocator ext4_mb_new_blocks ext4_ext_map_blocks ext4_map_blocks ext4_do_writepages ext4_writepages do_writepages __writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ret_from_fork_asm 15.69% kworker/u16:5+f [kernel.kallsyms] [k] ext4_get_group_info |=20=20=20=20=20=20=20=20=20=20 --15.10%--ext4_get_group_info |=20=20=20=20=20=20=20=20=20=20 --15.05%--ext4_mb_good_group |=20=20=20=20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20 --15.01%--ext4_mb_find_good_group_avg_frag_lists ext4_mb_regular_allocator ext4_mb_new_blocks ext4_ext_map_blocks ext4_map_blocks ext4_do_writepages ext4_writepages do_writepages __writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ret_from_fork_asm 9.51% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_find_good_group_avg_frag_lists |=20=20=20=20=20=20=20=20=20=20 --9.26%--ext4_mb_find_good_group_avg_frag_lists ext4_mb_regular_allocator ext4_mb_new_blocks ext4_ext_map_blocks ext4_map_blocks ext4_do_writepages ext4_writepages do_writepages __writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ret_from_fork_asm 6.63% kworker/u16:5+f [kernel.kallsyms] [k] __rcu_read_unlock |=20=20=20=20=20=20=20=20=20=20 |--4.56%--__rcu_read_unlock | |=20=20=20=20=20=20=20=20=20=20 | --4.54%--ext4_get_group_info | |=20=20=20=20=20=20=20=20=20=20 | --4.53%--ext4_mb_good_group | |=20=20=20=20=20=20=20=20=20=20 |=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20 --4.51%--ext4_mb_find_good_group_avg_frag_lists |=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 ext4_mb_regular_allocator | ext4_mb_new_blocks | ext4_ext_map_blocks | ext4_map_blocks | ext4_do_writepages | ext4_writepages | do_writepages |=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 __writeback_single_inode | writeback_sb_inodes | __writeback_inodes_= wb | wb_writeback | wb_workfn | process_one_work | worker_thread | kthread | ret_from_fork | ret_from_fork_asm |=20=20=20=20=20=20=20=20=20=20 --2.08%--ext4_get_group_info ext4_mb_good_group |=20=20=20=20=20=20=20=20=20=20 --2.07%--ext4_mb_find_good_group_avg_frag_lists ext4_mb_regular_allocator ext4_mb_new_blocks ext4_ext_map_blocks ext4_map_blocks ext4_do_writepages ext4_writepages do_writepages __writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ret_from_fork_asm 4.32% kworker/u16:5+f [kernel.kallsyms] [k] __rcu_read_lock |=20=20=20=20=20=20=20=20=20=20 --4.30%--__rcu_read_lock |=20=20=20=20=20=20=20=20=20=20 --4.29%--ext4_get_group_info |=20=20=20=20=20=20=20=20=20=20 --4.27%--ext4_mb_good_group |=20=20=20=20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 --4.26%--ext4_mb_find_good_group_avg_frag_lists =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20 ext4_mb_regular_allocator ext4_mb_new_blocks ext4_ext_map_blocks ext4_map_blocks ext4_do_writepages ext4_writepages do_writepages =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20 __writeback_single_inode writeback_sb_inodes __writeback_inodes_= wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ret_from_fork_asm 1.98% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_scan_aligned |=20=20=20=20=20=20=20=20=20=20 --1.98%--ext4_mb_scan_aligned ext4_mb_regular_allocator ext4_mb_new_blocks ext4_ext_map_blocks ext4_map_blocks ext4_do_writepages ext4_writepages do_writepages __writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback wb_workfn process_one_work worker_thread kthread ret_from_fork ret_from_fork_asm 0.50% kworker/u16:5+f [kernel.kallsyms] [k] mb_find_order_for_block 0.44% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_load_buddy_gfp 0.38% kworker/u16:5+f [kernel.kallsyms] [k] xas_descend 0.33% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_regular_allocat= or 0.30% kworker/u16:5+f [kernel.kallsyms] [k] filemap_get_entry 0.24% kworker/u16:5+f [kernel.kallsyms] [k] xas_load 0.18% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_unload_buddy 0.16% kworker/u16:5+f [kernel.kallsyms] [k] mb_find_extent 0.15% kworker/u16:5+f [kernel.kallsyms] [k] _raw_spin_trylock 0.14% kworker/u16:5+f [kernel.kallsyms] [k] _raw_read_unlock 0.10% kworker/u16:5+f [kernel.kallsyms] [k] _raw_read_lock 0.08% kworker/u16:5+f [kernel.kallsyms] [k] __filemap_get_folio 0.07% kworker/u16:5+f [kernel.kallsyms] [k] mb_find_buddy 0.05% kworker/u16:5+f [kernel.kallsyms] [k] xas_start 0.03% kworker/u16:5+f [kernel.kallsyms] [k] pagecache_get_page 0.03% kworker/u16:5+f [kernel.kallsyms] [k] _raw_spin_unlock 0.02% kworker/u16:5+f [kernel.kallsyms] [k] perf_adjust_freq_unthr_context 0.02% kworker/u16:5+f [kernel.kallsyms] [k] folio_mark_accessed 0.02% kworker/u16:5+f [kernel.kallsyms] [k] folio_test_hugetlb 0.01% kworker/u16:5+f [kernel.kallsyms] [k] native_write_msr 0.01% kworker/u16:5+f [kernel.kallsyms] [k] _raw_spin_lock 0.01% kworker/u16:5+f [kernel.kallsyms] [k] __cond_resched 0.01% kworker/u16:5+f [kernel.kallsyms] [k] timekeeping_advance 0.01% kworker/u16:5+f [kernel.kallsyms] [k] native_irq_return_iret 0.00% kworker/u16:5+f [kernel.kallsyms] [k] gen8_irq_handler --=20 You may reply to this email to add a 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