summaryrefslogtreecommitdiffstats
path: root/tools/workqueue
diff options
context:
space:
mode:
Diffstat (limited to 'tools/workqueue')
-rw-r--r--tools/workqueue/wq_dump.py104
1 files changed, 90 insertions, 14 deletions
diff --git a/tools/workqueue/wq_dump.py b/tools/workqueue/wq_dump.py
index d0df5833f2..d29b918306 100644
--- a/tools/workqueue/wq_dump.py
+++ b/tools/workqueue/wq_dump.py
@@ -50,6 +50,7 @@ import drgn
from drgn.helpers.linux.list import list_for_each_entry,list_empty
from drgn.helpers.linux.percpu import per_cpu_ptr
from drgn.helpers.linux.cpumask import for_each_cpu,for_each_possible_cpu
+from drgn.helpers.linux.nodemask import for_each_node
from drgn.helpers.linux.idr import idr_for_each
import argparse
@@ -75,6 +76,22 @@ def cpumask_str(cpumask):
output += f'{v:08x}'
return output.strip()
+wq_type_len = 9
+
+def wq_type_str(wq):
+ if wq.flags & WQ_BH:
+ return f'{"bh":{wq_type_len}}'
+ elif wq.flags & WQ_UNBOUND:
+ if wq.flags & WQ_ORDERED:
+ return f'{"ordered":{wq_type_len}}'
+ else:
+ if wq.unbound_attrs.affn_strict:
+ return f'{"unbound,S":{wq_type_len}}'
+ else:
+ return f'{"unbound":{wq_type_len}}'
+ else:
+ return f'{"percpu":{wq_type_len}}'
+
worker_pool_idr = prog['worker_pool_idr']
workqueues = prog['workqueues']
wq_unbound_cpumask = prog['wq_unbound_cpumask']
@@ -82,6 +99,7 @@ wq_pod_types = prog['wq_pod_types']
wq_affn_dfl = prog['wq_affn_dfl']
wq_affn_names = prog['wq_affn_names']
+WQ_BH = prog['WQ_BH']
WQ_UNBOUND = prog['WQ_UNBOUND']
WQ_ORDERED = prog['__WQ_ORDERED']
WQ_MEM_RECLAIM = prog['WQ_MEM_RECLAIM']
@@ -92,6 +110,11 @@ WQ_AFFN_CACHE = prog['WQ_AFFN_CACHE']
WQ_AFFN_NUMA = prog['WQ_AFFN_NUMA']
WQ_AFFN_SYSTEM = prog['WQ_AFFN_SYSTEM']
+POOL_BH = prog['POOL_BH']
+
+WQ_NAME_LEN = prog['WQ_NAME_LEN'].value_()
+cpumask_str_len = len(cpumask_str(wq_unbound_cpumask))
+
print('Affinity Scopes')
print('===============')
@@ -133,10 +156,12 @@ for pi, pool in idr_for_each(worker_pool_idr):
for pi, pool in idr_for_each(worker_pool_idr):
pool = drgn.Object(prog, 'struct worker_pool', address=pool)
- print(f'pool[{pi:0{max_pool_id_len}}] ref={pool.refcnt.value_():{max_ref_len}} nice={pool.attrs.nice.value_():3} ', end='')
+ print(f'pool[{pi:0{max_pool_id_len}}] flags=0x{pool.flags.value_():02x} ref={pool.refcnt.value_():{max_ref_len}} nice={pool.attrs.nice.value_():3} ', end='')
print(f'idle/workers={pool.nr_idle.value_():3}/{pool.nr_workers.value_():3} ', end='')
if pool.cpu >= 0:
print(f'cpu={pool.cpu.value_():3}', end='')
+ if pool.flags & POOL_BH:
+ print(' bh', end='')
else:
print(f'cpus={cpumask_str(pool.attrs.cpumask)}', end='')
print(f' pod_cpus={cpumask_str(pool.attrs.__pod_cpumask)}', end='')
@@ -148,24 +173,13 @@ print('')
print('Workqueue CPU -> pool')
print('=====================')
-print('[ workqueue \ type CPU', end='')
+print(f'[{"workqueue":^{WQ_NAME_LEN-2}}\\ {"type CPU":{wq_type_len}}', end='')
for cpu in for_each_possible_cpu(prog):
print(f' {cpu:{max_pool_id_len}}', end='')
print(' dfl]')
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='')
- else:
- print(' percpu ', end='')
+ print(f'{wq.name.string_().decode():{WQ_NAME_LEN}} {wq_type_str(wq):10}', end='')
for cpu in for_each_possible_cpu(prog):
pool_id = per_cpu_ptr(wq.cpu_pwq, cpu)[0].pool.id.value_()
@@ -175,3 +189,65 @@ 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('====================')
+
+ucpus_len = max(cpumask_str_len, len("unbound_cpus"))
+rcpus_len = max(cpumask_str_len, len("rescuer_cpus"))
+
+print(f'[{"workqueue":^{WQ_NAME_LEN-2}}\\ {"unbound_cpus":{ucpus_len}} pid {"rescuer_cpus":{rcpus_len}} ]')
+
+for wq in list_for_each_entry('struct workqueue_struct', workqueues.address_of_(), 'list'):
+ if not (wq.flags & WQ_MEM_RECLAIM):
+ continue
+
+ print(f'{wq.name.string_().decode():{WQ_NAME_LEN}}', end='')
+ if wq.unbound_attrs.value_() != 0:
+ print(f' {cpumask_str(wq.unbound_attrs.cpumask):{ucpus_len}}', end='')
+ else:
+ print(f' {"":{ucpus_len}}', end='')
+
+ print(f' {wq.rescuer.task.pid.value_():6}', end='')
+ print(f' {cpumask_str(wq.rescuer.task.cpus_ptr):{rcpus_len}}', end='')
+ print('')
+
+print('')
+print('Unbound workqueue -> node_nr/max_active')
+print('=======================================')
+
+if 'node_to_cpumask_map' in prog:
+ __cpu_online_mask = prog['__cpu_online_mask']
+ node_to_cpumask_map = prog['node_to_cpumask_map']
+ nr_node_ids = prog['nr_node_ids'].value_()
+
+ print(f'online_cpus={cpumask_str(__cpu_online_mask.address_of_())}')
+ for node in for_each_node():
+ print(f'NODE[{node:02}]={cpumask_str(node_to_cpumask_map[node])}')
+ print('')
+
+ print(f'[{"workqueue":^{WQ_NAME_LEN-2}}\\ min max', end='')
+ first = True
+ for node in for_each_node():
+ if first:
+ print(f' NODE {node}', end='')
+ first = False
+ else:
+ print(f' {node:7}', end='')
+ print(f' {"dfl":>7} ]')
+ print('')
+
+ for wq in list_for_each_entry('struct workqueue_struct', workqueues.address_of_(), 'list'):
+ if not (wq.flags & WQ_UNBOUND):
+ continue
+
+ print(f'{wq.name.string_().decode():{WQ_NAME_LEN}} ', end='')
+ print(f'{wq.min_active.value_():3} {wq.max_active.value_():3}', end='')
+ for node in for_each_node():
+ nna = wq.node_nr_active[node]
+ print(f' {nna.nr.counter.value_():3}/{nna.max.value_():3}', end='')
+ nna = wq.node_nr_active[nr_node_ids]
+ print(f' {nna.nr.counter.value_():3}/{nna.max.value_():3}')
+else:
+ printf(f'node_to_cpumask_map not present, is NUMA enabled?')