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 [thread overview]
Message-ID: <bug-217965-13602-Fz0nJTVkVf@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 #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
# ........ ............... .................
..........................................
#
58.48% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_good_group
|
|--56.07%--ext4_mb_good_group
| |
| --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
|
--2.16%--ext4_get_group_info
ext4_mb_good_group
|
--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
|
--15.10%--ext4_get_group_info
|
--15.05%--ext4_mb_good_group
|
--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
|
--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
|
|--4.56%--__rcu_read_unlock
| |
| --4.54%--ext4_get_group_info
| |
| --4.53%--ext4_mb_good_group
| |
|
--4.51%--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
|
--2.08%--ext4_get_group_info
ext4_mb_good_group
|
--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
|
--4.30%--__rcu_read_lock
|
--4.29%--ext4_get_group_info
|
--4.27%--ext4_mb_good_group
|
--4.26%--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
1.98% kworker/u16:5+f [kernel.kallsyms] [k] ext4_mb_scan_aligned
|
--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_allocator
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
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
next prev parent reply other threads:[~2023-11-16 4:05 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
2023-10-02 8:56 ` bugzilla-daemon
2023-10-02 8:57 ` bugzilla-daemon
2023-10-02 15:22 ` bugzilla-daemon
2023-10-02 15:55 ` bugzilla-daemon
2023-10-03 6:50 ` bugzilla-daemon
2023-10-03 6:57 ` bugzilla-daemon
2023-10-03 11:04 ` bugzilla-daemon
2023-10-03 13:42 ` bugzilla-daemon
2023-10-03 14:23 ` bugzilla-daemon
2023-10-04 12:44 ` bugzilla-daemon
2023-10-04 17:23 ` bugzilla-daemon
2023-10-11 7:53 ` bugzilla-daemon
2023-10-11 16:07 ` bugzilla-daemon
2023-10-11 22:23 ` bugzilla-daemon
2023-10-17 10:45 ` bugzilla-daemon
2023-10-17 10:52 ` bugzilla-daemon
2023-10-20 10:24 ` bugzilla-daemon
2023-10-21 10:07 ` bugzilla-daemon
2023-11-13 22:46 ` bugzilla-daemon
2023-11-14 5:55 ` bugzilla-daemon
2023-11-14 6:47 ` bugzilla-daemon
2023-11-14 8:22 ` bugzilla-daemon
2023-11-14 10:29 ` bugzilla-daemon
2023-11-15 4:06 ` bugzilla-daemon
2023-11-15 17:27 ` bugzilla-daemon
2023-11-15 22:39 ` bugzilla-daemon
2023-11-16 3:15 ` bugzilla-daemon
2023-11-16 4:05 ` bugzilla-daemon [this message]
2023-11-16 4:31 ` bugzilla-daemon
2023-11-16 4:33 ` bugzilla-daemon
2023-11-16 19:33 ` bugzilla-daemon
2023-11-17 0:01 ` bugzilla-daemon
2023-11-17 0:44 ` bugzilla-daemon
2023-11-17 1:39 ` bugzilla-daemon
2023-11-17 1:40 ` bugzilla-daemon
2023-11-17 15:39 ` bugzilla-daemon
2023-11-17 23:52 ` bugzilla-daemon
2023-11-17 23:53 ` bugzilla-daemon
2023-11-17 23:57 ` bugzilla-daemon
2023-11-18 12:10 ` bugzilla-daemon
2023-11-18 13:17 ` bugzilla-daemon
2023-11-20 6:11 ` bugzilla-daemon
2023-11-20 8:48 ` bugzilla-daemon
2023-11-27 17:31 ` bugzilla-daemon
2023-12-03 7:33 ` bugzilla-daemon
2023-12-15 11:27 ` bugzilla-daemon
2023-12-23 0:56 ` bugzilla-daemon
2023-12-23 1:48 ` bugzilla-daemon
2023-12-23 12:46 ` bugzilla-daemon
2023-12-23 14:22 ` bugzilla-daemon
2023-12-23 15:47 ` bugzilla-daemon
2023-12-29 20:35 ` bugzilla-daemon
2023-12-29 20:51 ` bugzilla-daemon
2023-12-29 21:05 ` bugzilla-daemon
2023-12-29 22:11 ` bugzilla-daemon
2023-12-29 22:13 ` bugzilla-daemon
2023-12-29 23:07 ` bugzilla-daemon
2023-12-29 23:22 ` bugzilla-daemon
2024-01-02 4:44 ` bugzilla-daemon
2024-01-02 6:44 ` bugzilla-daemon
2024-01-04 5:38 ` bugzilla-daemon
2024-01-04 22:20 ` bugzilla-daemon
2024-01-06 2:11 ` bugzilla-daemon
2024-01-06 3:18 ` bugzilla-daemon
2024-01-07 2:56 ` bugzilla-daemon
2024-02-07 11:44 ` bugzilla-daemon
2024-03-12 20:27 ` bugzilla-daemon
2024-03-17 11:58 ` bugzilla-daemon
2024-03-18 4:45 ` bugzilla-daemon
2024-03-20 6:46 ` bugzilla-daemon
2024-03-23 8:53 ` bugzilla-daemon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-217965-13602-Fz0nJTVkVf@https.bugzilla.kernel.org/ \
--to=bugzilla-daemon@kernel.org \
--cc=linux-ext4@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.