Revision 511e19b9e2112463c33a744ecb8a798056074408 authored by Namhyung Kim on 19 December 2022, 20:17:30 UTC, committed by Arnaldo Carvalho de Melo on 21 December 2022, 17:52:39 UTC
The -L/--lock-filter option is to filter only given locks. The locks can be specified by address or name (if exists). $ sudo ./perf lock record -a sleep 1 $ sudo ./perf lock con -l contended total wait max wait avg wait address symbol 57 1.11 ms 42.83 us 19.54 us ffff9f4140059000 15 280.88 us 23.51 us 18.73 us ffffffff9d007a40 jiffies_lock 1 20.49 us 20.49 us 20.49 us ffffffff9d0d50c0 rcu_state 1 9.02 us 9.02 us 9.02 us ffff9f41759e9ba0 $ sudo ./perf lock con -L jiffies_lock,rcu_state contended total wait max wait avg wait type caller 15 280.88 us 23.51 us 18.73 us spinlock tick_sched_do_timer+0x93 1 20.49 us 20.49 us 20.49 us spinlock __softirqentry_text_start+0xeb $ sudo ./perf lock con -L ffff9f4140059000 contended total wait max wait avg wait type caller 38 779.40 us 42.83 us 20.51 us spinlock worker_thread+0x50 11 216.30 us 39.87 us 19.66 us spinlock queue_work_on+0x39 8 118.13 us 20.51 us 14.77 us spinlock kthread+0xe5 Committer testing: # uname -a Linux quaco 6.0.12-200.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Dec 8 17:15:53 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux # perf lock record ^C[ perf record: Woken up 1 times to write data ] # perf lock con -L jiffies_lock,rcu_state contended total wait max wait avg wait type caller # perf lock con contended total wait max wait avg wait type caller 1 9.06 us 9.06 us 9.06 us spinlock call_timer_fn+0x24 # perf lock con -L call ignore unknown symbol: call contended total wait max wait avg wait type caller 1 9.06 us 9.06 us 9.06 us spinlock call_timer_fn+0x24 # Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Blake Jones <blakejones@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20221219201732.460111-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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9p | ||
adfs | ||
affs | ||
afs | ||
autofs | ||
befs | ||
bfs | ||
btrfs | ||
cachefiles | ||
ceph | ||
cifs | ||
coda | ||
configfs | ||
cramfs | ||
crypto | ||
debugfs | ||
devpts | ||
dlm | ||
ecryptfs | ||
efivarfs | ||
efs | ||
erofs | ||
exfat | ||
exportfs | ||
ext2 | ||
ext4 | ||
f2fs | ||
fat | ||
freevxfs | ||
fscache | ||
fuse | ||
gfs2 | ||
hfs | ||
hfsplus | ||
hostfs | ||
hpfs | ||
hugetlbfs | ||
iomap | ||
isofs | ||
jbd2 | ||
jffs2 | ||
jfs | ||
kernfs | ||
ksmbd | ||
lockd | ||
minix | ||
netfs | ||
nfs | ||
nfs_common | ||
nfsd | ||
nilfs2 | ||
nls | ||
notify | ||
ntfs | ||
ntfs3 | ||
ocfs2 | ||
omfs | ||
openpromfs | ||
orangefs | ||
overlayfs | ||
proc | ||
pstore | ||
qnx4 | ||
qnx6 | ||
quota | ||
ramfs | ||
reiserfs | ||
romfs | ||
smbfs_common | ||
squashfs | ||
sysfs | ||
sysv | ||
tracefs | ||
ubifs | ||
udf | ||
ufs | ||
unicode | ||
vboxsf | ||
verity | ||
xfs | ||
zonefs | ||
Kconfig | -rw-r--r-- | 9.8 KB |
Kconfig.binfmt | -rw-r--r-- | 6.2 KB |
Makefile | -rw-r--r-- | 4.5 KB |
aio.c | -rw-r--r-- | 61.0 KB |
anon_inodes.c | -rw-r--r-- | 8.1 KB |
attr.c | -rw-r--r-- | 15.1 KB |
bad_inode.c | -rw-r--r-- | 5.8 KB |
binfmt_elf.c | -rw-r--r-- | 57.3 KB |
binfmt_elf_fdpic.c | -rw-r--r-- | 43.4 KB |
binfmt_elf_test.c | -rw-r--r-- | 2.7 KB |
binfmt_flat.c | -rw-r--r-- | 25.8 KB |
binfmt_misc.c | -rw-r--r-- | 17.4 KB |
binfmt_script.c | -rw-r--r-- | 4.2 KB |
buffer.c | -rw-r--r-- | 78.9 KB |
char_dev.c | -rw-r--r-- | 16.6 KB |
compat_binfmt_elf.c | -rw-r--r-- | 3.8 KB |
coredump.c | -rw-r--r-- | 29.4 KB |
d_path.c | -rw-r--r-- | 11.4 KB |
dax.c | -rw-r--r-- | 54.5 KB |
dcache.c | -rw-r--r-- | 87.6 KB |
direct-io.c | -rw-r--r-- | 38.9 KB |
drop_caches.c | -rw-r--r-- | 1.9 KB |
eventfd.c | -rw-r--r-- | 12.2 KB |
eventpoll.c | -rw-r--r-- | 65.0 KB |
exec.c | -rw-r--r-- | 51.4 KB |
fcntl.c | -rw-r--r-- | 23.3 KB |
fhandle.c | -rw-r--r-- | 6.8 KB |
file.c | -rw-r--r-- | 32.0 KB |
file_table.c | -rw-r--r-- | 10.9 KB |
filesystems.c | -rw-r--r-- | 6.5 KB |
fs-writeback.c | -rw-r--r-- | 79.7 KB |
fs_context.c | -rw-r--r-- | 17.7 KB |
fs_parser.c | -rw-r--r-- | 10.7 KB |
fs_pin.c | -rw-r--r-- | 1.9 KB |
fs_struct.c | -rw-r--r-- | 3.4 KB |
fs_types.c | -rw-r--r-- | 2.5 KB |
fsopen.c | -rw-r--r-- | 10.9 KB |
init.c | -rw-r--r-- | 6.1 KB |
inode.c | -rw-r--r-- | 67.4 KB |
internal.h | -rw-r--r-- | 7.1 KB |
ioctl.c | -rw-r--r-- | 23.9 KB |
kernel_read_file.c | -rw-r--r-- | 4.4 KB |
libfs.c | -rw-r--r-- | 41.7 KB |
locks.c | -rw-r--r-- | 75.7 KB |
mbcache.c | -rw-r--r-- | 12.6 KB |
mount.h | -rw-r--r-- | 4.0 KB |
mpage.c | -rw-r--r-- | 18.8 KB |
namei.c | -rw-r--r-- | 137.4 KB |
namespace.c | -rw-r--r-- | 117.1 KB |
no-block.c | -rw-r--r-- | 478 bytes |
nsfs.c | -rw-r--r-- | 6.6 KB |
open.c | -rw-r--r-- | 37.4 KB |
pipe.c | -rw-r--r-- | 36.0 KB |
pnode.c | -rw-r--r-- | 15.1 KB |
pnode.h | -rw-r--r-- | 2.0 KB |
posix_acl.c | -rw-r--r-- | 31.0 KB |
proc_namespace.c | -rw-r--r-- | 8.1 KB |
read_write.c | -rw-r--r-- | 40.5 KB |
readdir.c | -rw-r--r-- | 13.8 KB |
remap_range.c | -rw-r--r-- | 14.1 KB |
select.c | -rw-r--r-- | 34.7 KB |
seq_file.c | -rw-r--r-- | 25.7 KB |
signalfd.c | -rw-r--r-- | 8.7 KB |
splice.c | -rw-r--r-- | 38.7 KB |
stack.c | -rw-r--r-- | 2.5 KB |
stat.c | -rw-r--r-- | 22.2 KB |
statfs.c | -rw-r--r-- | 9.7 KB |
super.c | -rw-r--r-- | 45.3 KB |
sync.c | -rw-r--r-- | 10.4 KB |
sysctls.c | -rw-r--r-- | 809 bytes |
timerfd.c | -rw-r--r-- | 13.9 KB |
userfaultfd.c | -rw-r--r-- | 55.8 KB |
utimes.c | -rw-r--r-- | 7.6 KB |
xattr.c | -rw-r--r-- | 35.0 KB |
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