diff options
Diffstat (limited to 'tools/workqueue')
| -rw-r--r-- | tools/workqueue/wq_dump.py | 16 | ||||
| -rw-r--r-- | tools/workqueue/wq_monitor.py | 21 |
2 files changed, 26 insertions, 11 deletions
diff --git a/tools/workqueue/wq_dump.py b/tools/workqueue/wq_dump.py index 43ab71a193b8..d0df5833f2c1 100644 --- a/tools/workqueue/wq_dump.py +++ b/tools/workqueue/wq_dump.py @@ -36,10 +36,11 @@ Workqueue CPU -> pool Lists all workqueues along with their type and worker pool association. For each workqueue: - NAME TYPE POOL_ID... + NAME TYPE[,FLAGS] POOL_ID... NAME name of the workqueue TYPE percpu, unbound or ordered + FLAGS S: strict affinity scope POOL_ID worker pool ID associated with each possible CPU """ @@ -138,13 +139,16 @@ for pi, pool in idr_for_each(worker_pool_idr): print(f'cpu={pool.cpu.value_():3}', end='') else: print(f'cpus={cpumask_str(pool.attrs.cpumask)}', end='') + print(f' pod_cpus={cpumask_str(pool.attrs.__pod_cpumask)}', end='') + if pool.attrs.affn_strict: + print(' strict', end='') print('') print('') print('Workqueue CPU -> pool') print('=====================') -print('[ workqueue \ CPU ', end='') +print('[ workqueue \ type CPU', end='') for cpu in for_each_possible_cpu(prog): print(f' {cpu:{max_pool_id_len}}', end='') print(' dfl]') @@ -153,11 +157,15 @@ for wq in list_for_each_entry('struct workqueue_struct', workqueues.address_of_( print(f'{wq.name.string_().decode()[-24:]:24}', end='') if wq.flags & WQ_UNBOUND: if wq.flags & WQ_ORDERED: - print(' ordered', end='') + print(' ordered ', end='') else: print(' unbound', end='') + if wq.unbound_attrs.affn_strict: + print(',S ', end='') + else: + print(' ', end='') else: - print(' percpu ', end='') + print(' percpu ', end='') for cpu in for_each_possible_cpu(prog): pool_id = per_cpu_ptr(wq.cpu_pwq, cpu)[0].pool.id.value_() diff --git a/tools/workqueue/wq_monitor.py b/tools/workqueue/wq_monitor.py index 6e258d123e8c..a8856a9c45dc 100644 --- a/tools/workqueue/wq_monitor.py +++ b/tools/workqueue/wq_monitor.py @@ -20,8 +20,11 @@ https://github.com/osandov/drgn. and got excluded from concurrency management to avoid stalling other work items. - CMwake The number of concurrency-management wake-ups while executing a - work item of the workqueue. + CMW/RPR For per-cpu workqueues, the number of concurrency-management + wake-ups while executing a work item of the workqueue. For + unbound workqueues, the number of times a worker was repatriated + to its affinity scope after being migrated to an off-scope CPU by + the scheduler. mayday The number of times the rescuer was requested while waiting for new worker creation. @@ -65,6 +68,7 @@ PWQ_STAT_COMPLETED = prog['PWQ_STAT_COMPLETED'] # work items completed exec PWQ_STAT_CPU_TIME = prog['PWQ_STAT_CPU_TIME'] # total CPU time consumed PWQ_STAT_CPU_INTENSIVE = prog['PWQ_STAT_CPU_INTENSIVE'] # wq_cpu_intensive_thresh_us violations PWQ_STAT_CM_WAKEUP = prog['PWQ_STAT_CM_WAKEUP'] # concurrency-management worker wakeups +PWQ_STAT_REPATRIATED = prog['PWQ_STAT_REPATRIATED'] # unbound workers brought back into scope PWQ_STAT_MAYDAY = prog['PWQ_STAT_MAYDAY'] # maydays to rescuer PWQ_STAT_RESCUED = prog['PWQ_STAT_RESCUED'] # linked work items executed by rescuer PWQ_NR_STATS = prog['PWQ_NR_STATS'] @@ -89,22 +93,25 @@ class WqStats: 'cpu_time' : self.stats[PWQ_STAT_CPU_TIME], 'cpu_intensive' : self.stats[PWQ_STAT_CPU_INTENSIVE], 'cm_wakeup' : self.stats[PWQ_STAT_CM_WAKEUP], + 'repatriated' : self.stats[PWQ_STAT_REPATRIATED], 'mayday' : self.stats[PWQ_STAT_MAYDAY], 'rescued' : self.stats[PWQ_STAT_RESCUED], } def table_header_str(): return f'{"":>24} {"total":>8} {"infl":>5} {"CPUtime":>8} '\ - f'{"CPUitsv":>7} {"CMwake":>7} {"mayday":>7} {"rescued":>7}' + f'{"CPUitsv":>7} {"CMW/RPR":>7} {"mayday":>7} {"rescued":>7}' def table_row_str(self): cpu_intensive = '-' - cm_wakeup = '-' + cmw_rpr = '-' mayday = '-' rescued = '-' - if not self.unbound: + if self.unbound: + cmw_rpr = str(self.stats[PWQ_STAT_REPATRIATED]); + else: cpu_intensive = str(self.stats[PWQ_STAT_CPU_INTENSIVE]) - cm_wakeup = str(self.stats[PWQ_STAT_CM_WAKEUP]) + cmw_rpr = str(self.stats[PWQ_STAT_CM_WAKEUP]) if self.mem_reclaim: mayday = str(self.stats[PWQ_STAT_MAYDAY]) @@ -115,7 +122,7 @@ class WqStats: f'{max(self.stats[PWQ_STAT_STARTED] - self.stats[PWQ_STAT_COMPLETED], 0):5} ' \ f'{self.stats[PWQ_STAT_CPU_TIME] / 1000000:8.1f} ' \ f'{cpu_intensive:>7} ' \ - f'{cm_wakeup:>7} ' \ + f'{cmw_rpr:>7} ' \ f'{mayday:>7} ' \ f'{rescued:>7} ' return out.rstrip(':') |