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2026-04-10 - 01:38
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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 all highest latencies:
System rack1slot1.osadl.org (updated Fri Apr 10, 2026 00:45:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215302211162,23sleep00-21swapper/019:09:570
214662208157,25sleep30-21swapper/319:09:083
214372202149,41sleep10-21swapper/119:08:461
213042200161,26sleep20-21swapper/219:07:032
1589921070,0sleep1111rcu_preempt23:59:291
274862600,0sleep10-21swapper/122:50:001
21627992215,6cyclictest28-21ksoftirqd/222:35:112
21627992019,1cyclictest28-21ksoftirqd/200:00:172
326392190,0sleep335-21ksoftirqd/323:38:243
326392190,0sleep335-21ksoftirqd/323:38:243
113642180,0sleep10-21swapper/122:28:141
21627991716,1cyclictest28-21ksoftirqd/222:40:112
21627991716,1cyclictest28-21ksoftirqd/221:15:222
21627991716,1cyclictest28-21ksoftirqd/219:50:162
21627991616,0cyclictest28-21ksoftirqd/223:25:222
21627991616,0cyclictest28-21ksoftirqd/222:50:202
21627991616,0cyclictest28-21ksoftirqd/222:20:162
21627991616,0cyclictest28-21ksoftirqd/221:38:382
97102150,0sleep30-21swapper/322:25:193
21627991515,0cyclictest28-21ksoftirqd/223:36:232
21627991515,0cyclictest28-21ksoftirqd/223:36:232
21627991515,0cyclictest28-21ksoftirqd/222:29:352
21627991515,0cyclictest28-21ksoftirqd/222:01:312
21627991515,0cyclictest28-21ksoftirqd/221:29:532
21627991515,0cyclictest28-21ksoftirqd/221:20:172
21627991515,0cyclictest28-21ksoftirqd/221:10:572
21627991515,0cyclictest28-21ksoftirqd/200:38:412
21627991515,0cyclictest28-21ksoftirqd/200:28:592
21627991514,1cyclictest28-21ksoftirqd/222:19:542
21627991514,1cyclictest28-21ksoftirqd/221:41:442
2162799148,2cyclictest28-21ksoftirqd/223:30:112
2162799145,8cyclictest28-21ksoftirqd/220:20:162
21627991414,0cyclictest28-21ksoftirqd/223:18:392
21627991414,0cyclictest28-21ksoftirqd/222:49:552
21627991414,0cyclictest28-21ksoftirqd/222:13:192
21627991414,0cyclictest28-21ksoftirqd/221:45:502
21627991413,1cyclictest28-21ksoftirqd/223:41:252
21627991413,1cyclictest28-21ksoftirqd/223:10:412
21627991413,1cyclictest28-21ksoftirqd/223:07:452
21627991413,0cyclictest28-21ksoftirqd/223:52:322
21627991313,0cyclictest28-21ksoftirqd/223:23:562
21627991313,0cyclictest28-21ksoftirqd/222:57:452
21627991313,0cyclictest28-21ksoftirqd/222:32:372
21627991312,1cyclictest28-21ksoftirqd/223:55:072
21627991312,1cyclictest28-21ksoftirqd/223:45:112
21627991312,1cyclictest28-21ksoftirqd/221:56:372
21627991312,1cyclictest28-21ksoftirqd/200:05:122
21627991311,1cyclictest28-21ksoftirqd/200:20:002
2162799130,1cyclictest0-21swapper/200:32:002
2162799130,1cyclictest0-21swapper/200:31:592
21627991212,0cyclictest28-21ksoftirqd/221:31:482
21627991211,1cyclictest28-21ksoftirqd/223:00:112
21627991211,1cyclictest28-21ksoftirqd/221:53:052
21627991211,1cyclictest28-21ksoftirqd/220:45:002
21627991211,1cyclictest28-21ksoftirqd/219:25:002
21627991210,1cyclictest28-21ksoftirqd/221:10:012
21627991210,1cyclictest28-21ksoftirqd/220:35:002
21627991210,1cyclictest28-21ksoftirqd/220:25:142
21627991210,1cyclictest28-21ksoftirqd/219:40:122
2160799124,4cyclictest2289-21perf19:35:000
2163299119,1cyclictest35-21ksoftirqd/300:10:003
2162799119,1cyclictest28-21ksoftirqd/220:55:132
2162799119,1cyclictest28-21ksoftirqd/220:15:122
2162799119,1cyclictest28-21ksoftirqd/220:00:142
2162799119,1cyclictest28-21ksoftirqd/219:35:012
2162799119,1cyclictest28-21ksoftirqd/200:10:192
21627991110,1cyclictest28-21ksoftirqd/222:05:122
21627991110,1cyclictest28-21ksoftirqd/221:00:202
21627991110,1cyclictest28-21ksoftirqd/220:50:182
21627991110,1cyclictest28-21ksoftirqd/220:35:012
21627991110,1cyclictest28-21ksoftirqd/220:05:092
21627991110,1cyclictest28-21ksoftirqd/219:55:132
21627991110,1cyclictest28-21ksoftirqd/219:45:122
21627991110,1cyclictest28-21ksoftirqd/219:25:012
21627991110,1cyclictest28-21ksoftirqd/219:15:002
2160799119,1cyclictest9-21ksoftirqd/020:15:010
2160799112,4cyclictest14868-21diskmemload00:10:000
2162799109,1cyclictest28-21ksoftirqd/220:10:162
2162799109,1cyclictest28-21ksoftirqd/219:35:002
2162799109,1cyclictest28-21ksoftirqd/200:20:142
2162799108,1cyclictest28-21ksoftirqd/220:45:152
2162799108,1cyclictest28-21ksoftirqd/220:45:142
2162799106,3cyclictest28-21ksoftirqd/219:10:142
2160799104,2cyclictest10940-21ssh21:45:160
2160799102,5cyclictest5699-21gltestperf23:45:150
2160799100,5cyclictest30172-21fschecks_time22:10:140
31937293,5sleep032240-21wc22:55:140
216329990,5cyclictest31094-21kworker/3:000:10:143
216209990,4cyclictest0-21swapper/122:40:121
216079992,6cyclictest3038-21tr21:35:120
216079991,7cyclictest13086-21ntp_states19:55:180
216079990,5cyclictest29481-21perf23:35:010
22043280,1sleep10-21swapper/121:17:421
216329986,1cyclictest35-21ksoftirqd/321:09:593
216329986,1cyclictest35-21ksoftirqd/320:25:003
216329980,7cyclictest0-21swapper/321:47:013
216079986,1cyclictest27295-21latency_hist19:20:000
216079982,4cyclictest14868-21diskmemload22:51:190
216079980,7cyclictest583-21in:imuxsock23:09:590
216079980,7cyclictest25229-21ssh22:04:360
216079980,7cyclictest19224-21ssh22:38:520
216079980,5cyclictest25904-21perf20:25:000
216079980,4cyclictest18799-21perf20:10:000
216079980,4cyclictest0-21swapper/023:42:450
216079980,1cyclictest14784-21taskset21:09:110
216079980,1cyclictest0-21swapper/021:30:230
216079980,1cyclictest0-21swapper/021:14:160
11457280,1sleep311549-21ntp_states21:00:173
216329976,1cyclictest35-21ksoftirqd/323:05:213
216329976,1cyclictest24175-21munin-node20:08:373
216329975,1cyclictest949-21ssh21:30:563
216329975,1cyclictest31896-21ssh22:12:023
216329975,1cyclictest28525-21cat19:20:163
216329975,1cyclictest23903-21sshd19:12:063
216329975,1cyclictest17185-21ssh21:10:463
216329975,1cyclictest15457-21ntpq20:00:183
216329973,3cyclictest14868-21diskmemload23:56:383
216329973,2cyclictest0-21swapper/300:29:383
216329972,3cyclictest23321-21apt-get21:20:123
216329972,3cyclictest0-21swapper/300:35:163
216329970,6cyclictest0-21swapper/323:15:043
216209972,3cyclictest0-21swapper/122:52:181
216209971,3cyclictest0-21swapper/123:00:141
216209970,1cyclictest0-21swapper/123:46:251
216079976,1cyclictest5249-21ssh00:26:230
216079976,1cyclictest31932-1kworker/u9:222:15:160
216079976,1cyclictest15801-21ssh23:59:150
216079975,1cyclictest7429-21ssh00:30:160
216079975,1cyclictest7429-21ssh00:30:150
216079971,6cyclictest1522-21ssh00:21:400
216079971,5cyclictest28844-21ssh21:25:200
216079971,1cyclictest19331-21stty21:15:120
216079970,6cyclictest29705-1kworker/u9:023:35:170
216079970,6cyclictest29705-1kworker/u9:023:35:160
216079970,6cyclictest26290-21taskset22:47:190
216079970,6cyclictest26190-21df22:05:150
216079970,6cyclictest20724-21grep22:40:150
216079970,6cyclictest14868-21diskmemload00:37:290
216079970,6cyclictest0-21swapper/023:20:150
216079970,6cyclictest0-21swapper/021:20:170
216079970,1cyclictest30531-21ssh00:17:450
216079970,1cyclictest23128-21ssh23:25:160
216079970,1cyclictest19684-21sh00:04:210
216079970,1cyclictest16026-21users20:00:200
216079970,1cyclictest11720-21sort19:55:000
216079970,1cyclictest10100-21ssh21:44:580
216079970,1cyclictest0-21swapper/020:30:140
216079970,1cyclictest0-21swapper/019:40:120
5415261,0sleep30-21swapper/320:50:003
5415261,0sleep30-21swapper/320:50:003
216329965,1cyclictest7561-21ssh22:23:163
216329965,1cyclictest5487-21ssh21:37:503
216329965,1cyclictest4939-21ssh23:45:063
216329965,1cyclictest30861-21ssh22:54:193
216329965,1cyclictest30526-21ssh00:17:433
216329965,1cyclictest2687-21ssh22:15:293
216329965,1cyclictest26139-21ssh22:46:543
216329965,1cyclictest20981-21ssh23:22:513
216329965,1cyclictest18700-21ssh22:37:263
216329965,1cyclictest14770-21ssh22:32:093
216329965,1cyclictest1194-21ssh00:20:463
216329965,1cyclictest10055-21ssh21:44:513
216329964,1cyclictest6894-21apt-get00:30:113
216329964,1cyclictest6894-21apt-get00:30:113
216329964,1cyclictest592-21wc22:55:193
216329964,1cyclictest4019-21ntp_states23:00:183
216329964,1cyclictest23982-21sshd22:01:133
216329964,1cyclictest1479-21systemctl19:30:193
216329963,1cyclictest240-21systemd-journal20:57:303
216329963,1cyclictest240-21systemd-journal20:00:003
216329963,1cyclictest240-21systemd-journal19:30:003
216329963,1cyclictest14868-21diskmemload23:26:233
216329963,1cyclictest14868-21diskmemload00:04:563
216329962,2cyclictest240-21systemd-journal23:52:323
216329962,2cyclictest240-21systemd-journal23:10:473
216329962,2cyclictest240-21systemd-journal19:15:123
216329961,4cyclictest31719-21gltestperf20:35:143
216329961,3cyclictest22686-21runrttasks21:19:133
216329960,6cyclictest0-21swapper/321:28:293
216329960,4cyclictest693-21runrttasks23:31:043
216329960,1cyclictest240-21systemd-journal20:45:013
216329960,1cyclictest0-21swapper/322:44:543
216329960,1cyclictest0-21swapper/320:30:113
216209966,0cyclictest0-21swapper/122:14:481
216209961,1cyclictest0-21swapper/121:45:001
216209960,6cyclictest0-21swapper/123:20:421
216209960,6cyclictest0-21swapper/121:27:381
216209960,6cyclictest0-21swapper/119:59:101
216209960,6cyclictest0-21swapper/100:37:431
216209960,5cyclictest0-21swapper/123:40:161
216209960,5cyclictest0-21swapper/120:15:161
216209960,4cyclictest0-21swapper/121:51:461
216209960,2cyclictest0-21swapper/122:24:001
216209960,1cyclictest0-21swapper/123:54:561
216209960,1cyclictest0-21swapper/120:55:151
216209960,1cyclictest0-21swapper/100:16:581
216209960,0cyclictest0-21swapper/123:38:261
216209960,0cyclictest0-21swapper/123:38:261
216079965,1cyclictest26714-1kworker/u9:223:01:400
216079965,1cyclictest11606-21ntp_states23:10:170
216079964,1cyclictest8719-21ssh23:50:040
216079962,2cyclictest0-21swapper/020:55:130
216079961,5cyclictest25207-21ssh00:10:170
216079961,1cyclictest30201-21/usr/sbin/munin19:25:120
216079960,6cyclictest0-21swapper/021:50:140
216079960,5cyclictest7051-21ssh22:21:550
216079960,5cyclictest30578-21apt-get20:35:010
216079960,5cyclictest17752-21ssh21:55:010
216079960,5cyclictest0-21swapper/020:45:130
216079960,5cyclictest0-21swapper/020:45:130
216079960,5cyclictest0-21swapper/020:25:120
216079960,2cyclictest0-21swapper/022:25:170
216079960,0cyclictest22450-21strings20:15:170
216079960,0cyclictest14868-21diskmemload23:15:060
216079960,0cyclictest0-21swapper/022:30:120
216079960,0cyclictest0-21swapper/020:53:200
216079960,0cyclictest0-21swapper/019:23:100
216079960,0cyclictest0-21swapper/019:11:040
216329954,1cyclictest18998-21apt-get20:10:093
216329954,1cyclictest14225-21apt-get21:50:103
216329953,1cyclictest18499-21ls21:55:163
216329952,2cyclictest0-21swapper/322:05:133
216329952,1cyclictest240-21systemd-journal20:52:433
216329951,1cyclictest240-21systemd-journal19:52:273
216329951,1cyclictest0-21swapper/320:25:133
216329950,3cyclictest0-21swapper/323:42:433
216209955,0cyclictest0-21swapper/121:21:511
216209955,0cyclictest0-21swapper/121:05:431
216209951,3cyclictest0-21swapper/123:09:111
216209950,5cyclictest0-21swapper/122:58:181
216209950,5cyclictest0-21swapper/120:10:221
216209950,5cyclictest0-21swapper/120:06:491
216209950,5cyclictest0-21swapper/119:15:151
216209950,4cyclictest0-21swapper/120:55:001
216209950,3cyclictest0-21swapper/123:25:471
216209950,3cyclictest0-21swapper/122:15:211
216209950,3cyclictest0-21swapper/121:30:191
216209950,3cyclictest0-21swapper/100:21:351
216209950,2cyclictest0-21swapper/122:30:111
216209950,2cyclictest0-21swapper/121:55:191
216209950,2cyclictest0-21swapper/121:35:201
216209950,2cyclictest0-21swapper/121:00:161
216209950,2cyclictest0-21swapper/100:25:131
216209950,2cyclictest0-21swapper/100:06:401
216209950,1cyclictest0-21swapper/122:35:131
216209950,1cyclictest0-21swapper/122:02:571
216209950,1cyclictest0-21swapper/119:10:171
216209950,0cyclictest0-21swapper/123:17:331
216209950,0cyclictest0-21swapper/119:38:051
216079955,0cyclictest0-21swapper/020:40:100
216079950,4cyclictest10388-21/usr/sbin/munin21:00:190
216079950,0cyclictest0-21swapper/019:45:000
13392250,0sleep10-21swapper/121:48:341
7215242,1sleep37248-21telnet19:45:133
216329943,1cyclictest5679-21hwlatdetect19:40:153
216329942,1cyclictest2519-21aten_r1power_cu19:35:113
216329940,3cyclictest21420-21telnet20:15:133
216209944,0cyclictest0-21swapper/119:50:041
216209944,0cyclictest0-21swapper/119:46:281
216209944,0cyclictest0-21swapper/119:26:061
216209944,0cyclictest0-21swapper/119:20:351
216209943,1cyclictest17151-21chrt21:10:361
216209941,3cyclictest0-21swapper/120:43:581
216209941,2cyclictest0-21swapper/119:40:171
216209941,2cyclictest0-21swapper/100:10:111
216209940,2cyclictest0-21swapper/122:09:421
216209940,2cyclictest0-21swapper/120:30:001
216209940,2cyclictest0-21swapper/120:20:151
216209940,1cyclictest0-21swapper/123:30:101
216209940,1cyclictest0-21swapper/123:10:131
216209940,1cyclictest0-21swapper/120:25:131
216209940,1cyclictest0-21swapper/120:00:131
216209940,1cyclictest0-21swapper/100:32:181
216209940,1cyclictest0-21swapper/100:32:181
216209940,1cyclictest0-21swapper/100:00:111
216079940,0cyclictest0-21swapper/019:35:120
216209931,1cyclictest0-21swapper/120:45:121
216209931,1cyclictest0-21swapper/120:45:111
216209930,1cyclictest0-21swapper/120:35:011
216209930,0cyclictest19022sleep119:30:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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