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2026-04-13 - 18:26
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack2slot0.osadl.org (updated Mon Apr 13, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
258942780,0sleep00-21swapper/011:12:320
168692750,1sleep016872-21bash12:23:010
74552590,0sleep20-21swapper/209:44:352
292162580,0sleep20-21swapper/210:05:412
292162580,0sleep20-21swapper/210:05:412
246042560,0sleep30-21swapper/310:05:183
246042560,0sleep30-21swapper/310:05:183
55082550,1sleep05501-21bash09:21:420
201112550,0sleep30-21swapper/311:17:443
169932530,0sleep20-21swapper/210:10:152
169932530,0sleep20-21swapper/210:10:142
35432520,2sleep02021599cyclictest11:19:090
209102520,1sleep320907-21lspci10:55:133
255792510,1sleep325576-21lspci12:11:193
52392500,0sleep30-21swapper/309:38:513
35482490,0sleep20-21swapper/211:13:272
319542490,0sleep10-21swapper/111:42:011
261802490,0sleep30-21swapper/309:20:163
260012490,0sleep026002-21bash11:50:180
52382480,0sleep20-21swapper/212:15:262
94622470,0sleep20-21swapper/209:30:052
83432460,0sleep30-21swapper/310:42:513
181322460,2sleep02021599cyclictest11:40:400
1986524534,7sleep00-21swapper/007:07:050
118882440,0sleep30-21swapper/311:14:113
99852410,0sleep00-21swapper/010:29:020
323882410,2sleep02021599cyclictest10:56:100
235112360,0sleep00-21swapper/010:16:170
197862340,0sleep30-21swapper/312:29:453
1983223221,7sleep10-21swapper/107:06:421
1978422816,7sleep30-21swapper/307:06:043
52692230,1sleep0699-21gdbus11:27:550
20221992221,0cyclictest21278-21lspci10:41:081
200862227,3sleep20-21swapper/207:09:512
18422200,1sleep11836-21sshd11:36:161
46852180,1sleep0111rcuc/009:25:260
255922180,0sleep20-21swapper/210:33:092
230402180,0sleep20-21swapper/209:15:552
20221991716,0cyclictest241ktimersoftd/112:09:301
2021599170,12cyclictest19911-21sshd10:02:110
316772160,1sleep131670-21sshd09:20:551
20221991616,0cyclictest527-40kipmi009:35:551
106842160,0sleep20-21swapper/212:22:232
54872150,0sleep20-21swapper/209:52:412
272912150,1sleep127279-21sshd09:49:021
20221991514,0cyclictest27711-21lspci11:18:241
20221991514,0cyclictest10079-21lspci11:31:111
20221991513,1cyclictest11085-21kworker/1:110:57:111
2021599153,5cyclictest699-21gdbus10:33:010
2021599150,7cyclictest674-21dbus-daemon09:55:090
2021599150,6cyclictest31700-21bash12:37:130
2021599150,6cyclictest11166-21grepconf.sh11:57:570
2021599150,0cyclictest0-21swapper/011:08:490
77732140,1sleep37778-21bash12:00:343
283192140,0sleep20-21swapper/210:22:162
256872140,1sleep233-21ksoftirqd/211:15:192
20228991413,0cyclictest0-21swapper/212:32:372
20221991413,0cyclictest11128-21kworker/1:209:56:411
20221991412,1cyclictest22218-21kworker/1:111:51:061
20221991412,1cyclictest15945-21lspci11:25:541
20221991412,1cyclictest11678-21kworker/1:011:56:171
2021599143,5cyclictest674-21dbus-daemon12:31:480
2021599143,5cyclictest649-21polkitd10:12:540
2021599143,5cyclictest649-21polkitd10:12:540
2021599142,6cyclictest674-21dbus-daemon09:35:200
2021599141,6cyclictest649-21polkitd10:42:190
2021599141,6cyclictest1-21systemd11:00:190
2021599140,6cyclictest674-21dbus-daemon11:21:340
2021599140,6cyclictest21570-21bash10:46:470
2021599140,5cyclictest3500-21bash11:30:340
2021599140,5cyclictest15613-21id10:35:060
2021599140,2cyclictest21112-21lspci10:21:380
2021599140,1cyclictest642-21systemd-logind09:14:570
2021599140,1cyclictest0-21swapper/010:50:290
112832140,0sleep10-21swapper/110:34:441
32112130,0sleep20-21swapper/212:00:122
20235991310,2cyclictest0-21swapper/310:39:013
20221991313,0cyclictest14960-21kworker/1:310:46:481
20221991312,0cyclictest9922-21kworker/1:310:25:591
20221991312,0cyclictest527-40kipmi012:36:561
20221991312,0cyclictest241ktimersoftd/110:09:031
20221991312,0cyclictest241ktimersoftd/110:09:031
20221991311,1cyclictest26557-21sshd12:17:371
2021599133,7cyclictest17048-21cat09:15:150
2021599130,6cyclictest674-21dbus-daemon09:54:150
2021599130,5cyclictest4776-21sshd11:36:320
2021599130,5cyclictest4678-21sshd11:45:210
2021599130,5cyclictest19395-21grep09:40:040
103952130,0sleep2321ktimersoftd/210:45:472
2023599120,1cyclictest26892-21lspci09:54:313
2023599120,11cyclictest19616-21sshd11:52:423
2023599120,11cyclictest1515-21grepconf.sh10:17:113
2022899120,1cyclictest8916-21lspci10:28:572
2022199129,1cyclictest131rcu_sched12:02:161
20221991211,0cyclictest9922-21kworker/1:310:24:361
20221991211,0cyclictest5354-21kworker/1:209:18:331
20221991211,0cyclictest2564-21lspci10:50:441
20221991211,0cyclictest20766-21kworker/1:310:03:471
2022199120,1cyclictest674-21dbus-daemon09:50:261
2022199120,11cyclictest0-21swapper/111:46:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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