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| author |  Juri Lelli <juri.lelli@redhat.com>
| 2024-01-16 17:19:26 +0100 |
|---|---|---|
| committer |  Tejun Heo <tj@kernel.org>
| 2024-01-16 08:47:22 -1000 |
| commit | ab5e5b99a949b9f282c605d00557b2c727856485 (patch) | |
| tree | c5dfdc904c276560e89b66a2bc108a481ea7f450 /tools/workqueue | |
| parent | workqueue.c: Increase workqueue name length (diff) | |
| download | linux-ab5e5b99a949b9f282c605d00557b2c727856485.tar.gz linux-ab5e5b99a949b9f282c605d00557b2c727856485.tar.bz2 linux-ab5e5b99a949b9f282c605d00557b2c727856485.zip | |
tools/workqueue: Add rescuers printing to wq_dump.py
Retrieving rescuers information (e.g., affinity and name) is quite
useful when debugging workqueues configurations.
Add printing of such information to the existing wq_dump.py script.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/workqueue')
| -rw-r--r-- | tools/workqueue/wq_dump.py | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/workqueue/wq_dump.py b/tools/workqueue/wq_dump.py index d0df5833f2c1..6da621989e21 100644 --- a/tools/workqueue/wq_dump.py +++ b/tools/workqueue/wq_dump.py @@ -175,3 +175,32 @@ for wq in list_for_each_entry('struct workqueue_struct', workqueues.address_of_( if wq.flags & WQ_UNBOUND: print(f' {wq.dfl_pwq.pool.id.value_():{max_pool_id_len}}', end='') print('') + +print('') +print('Workqueue -> rescuer') +print('=====================') +print(f'wq_unbound_cpumask={cpumask_str(wq_unbound_cpumask)}') +print('') +print('[ workqueue \ type unbound_cpumask rescuer pid cpumask]') + +for wq in list_for_each_entry('struct workqueue_struct', workqueues.address_of_(), 'list'): + print(f'{wq.name.string_().decode()[-24:]:24}', end='') + if wq.flags & WQ_UNBOUND: + if wq.flags & WQ_ORDERED: + print(' ordered ', end='') + else: + print(' unbound', end='') + if wq.unbound_attrs.affn_strict: + print(',S ', end='') + else: + print(' ', end='') + print(f' {cpumask_str(wq.unbound_attrs.cpumask):24}', end='') + else: + print(' percpu ', end='') + print(' ', end='') + + if wq.flags & WQ_MEM_RECLAIM: + print(f' {wq.rescuer.task.comm.string_().decode()[-24:]:24}', end='') + print(f' {wq.rescuer.task.pid.value_():5}', end='') + print(f' {cpumask_str(wq.rescuer.task.cpus_ptr)}', end='') + print('') |