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2026-07-13 - 02:42
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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 highest latencies:
System rack1slot1.osadl.org (updated Mon Jul 13, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12192221157,25sleep10-21swapper/119:07:051
11392211160,25sleep00-21swapper/019:06:040
12382210172,25sleep30-21swapper/319:07:193
11952198158,26sleep20-21swapper/219:06:462
14272660,0sleep30-21swapper/322:45:193
312902620,0sleep30-21swapper/321:15:153
77902200,0sleep00-21swapper/019:20:130
98162160,0sleep10-21swapper/119:25:111
1524991615,1cyclictest28-21ksoftirqd/200:00:142
1524991611,2cyclictest240-21systemd-journal22:50:002
24452140,0sleep00-21swapper/021:20:130
152499130,13cyclictest0-21swapper/222:21:442
151599133,5cyclictest3058-21pluginstate20:20:010
1524991211,1cyclictest28-21ksoftirqd/220:10:012
1524991211,1cyclictest28-21ksoftirqd/200:30:002
1524991210,1cyclictest28-21ksoftirqd/221:15:012
1515991211,1cyclictest20928-21ssh23:12:400
1524991110,1cyclictest28-21ksoftirqd/200:16:322
152499110,6cyclictest22029-21/usr/sbin/munin21:45:162
152999109,1cyclictest35-21ksoftirqd/300:15:003
152999108,1cyclictest35-21ksoftirqd/322:05:013
152999100,4cyclictest0-21swapper/322:35:133
152499109,1cyclictest28-21ksoftirqd/223:50:132
152499108,1cyclictest28-21ksoftirqd/219:35:002
1524991010,0cyclictest28-21ksoftirqd/200:05:212
151599108,1cyclictest9-21ksoftirqd/020:20:110
151599104,5cyclictest22583-21ssh21:45:200
32552290,0sleep10-21swapper/121:15:331
15249998,1cyclictest28-21ksoftirqd/222:05:012
15249998,1cyclictest28-21ksoftirqd/200:00:002
15249990,6cyclictest10805-21cpuspeed_turbos22:15:112
15159998,1cyclictest9-21ksoftirqd/023:27:410
15159996,2cyclictest22491-21perf00:00:000
15159992,4cyclictest15234-21latency_hist23:50:010
15159992,3cyclictest3585-21perf22:50:000
15159990,5cyclictest0-21swapper/021:55:120
15299987,1cyclictest35-21ksoftirqd/322:19:593
15299987,1cyclictest35-21ksoftirqd/319:20:013
15299986,1cyclictest35-21ksoftirqd/322:25:003
15299986,1cyclictest35-21ksoftirqd/321:00:003
15299986,1cyclictest20088-21cat19:45:153
15299986,1cyclictest11182-21/usr/sbin/munin19:25:203
15299986,1cyclictest10021-21cstates21:30:133
15299985,1cyclictest13650irq/124-ahci[0023:29:553
15299984,2cyclictest240-21systemd-journal23:50:013
15299983,1cyclictest9467-21nscd21:40:123
15299982,3cyclictest35-21ksoftirqd/321:48:303
15249988,0cyclictest0-21swapper/223:05:452
15249987,1cyclictest28-21ksoftirqd/223:00:012
15249987,1cyclictest28-21ksoftirqd/223:00:012
15249987,1cyclictest28-21ksoftirqd/200:33:172
15249987,1cyclictest28-21ksoftirqd/200:10:162
15249986,1cyclictest61650irq/122-eno123:35:192
15249986,1cyclictest61650irq/122-eno123:00:172
15249986,1cyclictest61650irq/122-eno122:42:362
15249986,1cyclictest61650irq/122-eno122:10:152
15249986,1cyclictest61650irq/122-eno119:45:122
15249986,1cyclictest28-21ksoftirqd/223:40:222
15249986,1cyclictest28-21ksoftirqd/219:35:132
15249986,1cyclictest28-21ksoftirqd/219:25:002
15249986,1cyclictest2705-21fschecks_time21:20:132
15249984,2cyclictest240-21systemd-journal21:30:002
15249982,5cyclictest11591-21runrttasks21:30:402
15249981,4cyclictest30289-21kworker/u8:023:25:202
15249980,7cyclictest61650irq/122-eno123:13:322
15249980,7cyclictest0-21swapper/223:16:472
15169980,4cyclictest0-21swapper/100:00:151
15159988,0cyclictest9-21ksoftirqd/021:14:150
15159987,1cyclictest9-21ksoftirqd/020:10:000
15159986,1cyclictest24506-21perf21:05:000
15159983,4cyclictest24766-21/usr/sbin/munin21:50:160
15159983,2cyclictest240-21systemd-journal20:45:000
15159981,6cyclictest9060-21ssh00:25:130
15159980,7cyclictest18683-21fschecks_time22:25:130
15159980,7cyclictest11957-21latency_hist19:30:000
15159980,4cyclictest5862-21/usr/sbin/munin21:25:160
15159980,4cyclictest22170-21latency_hist21:00:000
15299976,1cyclictest35-21ksoftirqd/323:20:003
15299976,1cyclictest35-21ksoftirqd/320:17:083
15299975,1cyclictest35-21ksoftirqd/322:25:003
15299973,2cyclictest548-21systemd-logind23:32:083
15299973,2cyclictest548-21systemd-logind00:25:203
15299971,4cyclictest26748-21ssh00:05:133
15299971,4cyclictest0-21swapper/322:12:543
15299971,3cyclictest6663-21memory20:25:163
15299971,3cyclictest26851-21diskmemload23:10:153
15299971,3cyclictest10573-21apt-get20:35:123
15299971,1cyclictest0-21swapper/322:34:223
15299970,6cyclictest1556-21ssh00:15:013
15299970,5cyclictest28965-21cstates20:05:153
15299970,5cyclictest26851-21diskmemload22:40:093
15299970,3cyclictest0-21swapper/323:50:183
15249976,1cyclictest61650irq/122-eno122:51:352
15249976,1cyclictest61650irq/122-eno122:31:102
15249976,1cyclictest61650irq/122-eno120:20:002
15249976,1cyclictest61650irq/122-eno119:55:142
15249976,1cyclictest61650irq/122-eno100:35:102
15249976,0cyclictest61650irq/122-eno120:20:192
15249975,1cyclictest61650irq/122-eno121:50:152
15249975,1cyclictest61650irq/122-eno121:15:122
15249975,1cyclictest28-21ksoftirqd/219:20:012
15249970,6cyclictest0-21swapper/220:50:192
15249970,5cyclictest0-21swapper/222:02:532
15249970,1cyclictest14697-21memory21:35:172
15169971,3cyclictest0-21swapper/123:50:161
15169970,7cyclictest0-21swapper/123:34:541
15169970,6cyclictest0-21swapper/121:20:151
15169970,6cyclictest0-21swapper/119:10:171
15169970,4cyclictest0-21swapper/121:58:481
15169970,2cyclictest0-21swapper/122:05:111
15159976,1cyclictest9-21ksoftirqd/019:10:330
15159976,1cyclictest2337-21ssh22:03:050
15159976,1cyclictest17500-21ssh23:51:040
15159975,1cyclictest9-21ksoftirqd/019:55:130
15159975,1cyclictest9-21ksoftirqd/019:39:590
15159975,1cyclictest733-21sshd23:05:080
15159975,1cyclictest30223-21ssh00:10:130
15159973,2cyclictest240-21systemd-journal23:34:590
15159972,4cyclictest4365-21/usr/sbin/munin23:35:180
15159972,4cyclictest26851-21diskmemload23:00:130
15159972,2cyclictest26851-21diskmemload21:38:160
15159970,6cyclictest9356-1kworker/u9:122:13:020
15159970,6cyclictest3406-21ssh00:15:220
15159970,6cyclictest26851-21diskmemload22:44:240
15159970,6cyclictest26851-21diskmemload22:30:120
15159970,1cyclictest9755-21sh21:30:120
15159970,1cyclictest7836-21ssh00:22:440
15159970,1cyclictest5495-21perl19:15:150
15159970,1cyclictest27243-21ssh22:35:470
15159970,1cyclictest26851-21diskmemload22:56:450
15159970,1cyclictest26851-21diskmemload22:56:450
15159970,1cyclictest26851-21diskmemload22:15:090
15159970,1cyclictest26851-21diskmemload22:08:090
15159970,1cyclictest26118-21apt-get00:05:000
15159970,1cyclictest240-21systemd-journal21:15:050
15159970,1cyclictest22013-21apt-get23:15:120
15159970,1cyclictest20334-21ntpq19:45:170
15159970,1cyclictest20223-21sshd21:43:070
15159970,1cyclictest0-21swapper/000:30:170
15159970,1cyclictest0-21swapper/000:00:250
5693260,0sleep20-21swapper/200:20:142
15299965,1cyclictest6413-21ssh22:52:483
15299965,1cyclictest5828-21ssh21:25:073
15299965,1cyclictest5152-21ssh22:05:383
15299965,1cyclictest30434-21ssh21:56:053
15299965,1cyclictest29463-21ssh21:12:323
15299965,1cyclictest28946-21ssh23:24:493
15299965,1cyclictest27330-21ssh21:52:403
15299965,1cyclictest25040-21ntpq19:55:193
15299965,1cyclictest16669-21ssh23:05:493
15299965,1cyclictest16095-21ssh00:35:013
15299965,1cyclictest15573-21ssh21:35:413
15299963,1cyclictest548-21systemd-logind22:57:083
15299963,1cyclictest548-21systemd-logind22:57:073
15299963,1cyclictest240-21systemd-journal23:55:013
15299962,3cyclictest8057-21taskset00:23:233
15299962,3cyclictest2087-21apt-get21:20:113
15299961,3cyclictest0-21swapper/320:40:163
15299960,3cyclictest0-21swapper/323:35:123
15299960,3cyclictest0-21swapper/323:01:213
15299960,0cyclictest0-21swapper/300:02:143
15249966,0cyclictest61650irq/122-eno123:30:292
15249966,0cyclictest61650irq/122-eno123:20:122
15249966,0cyclictest61650irq/122-eno122:35:132
15249966,0cyclictest61650irq/122-eno120:55:142
15249966,0cyclictest61650irq/122-eno120:45:112
15249966,0cyclictest61650irq/122-eno120:40:562
15249966,0cyclictest61650irq/122-eno120:38:562
15249966,0cyclictest61650irq/122-eno120:30:152
15249966,0cyclictest61650irq/122-eno120:10:012
15249966,0cyclictest61650irq/122-eno119:42:312
15249966,0cyclictest61650irq/122-eno119:25:152
15249966,0cyclictest61650irq/122-eno119:10:202
15249965,1cyclictest61650irq/122-eno122:25:132
15249965,1cyclictest61650irq/122-eno121:55:142
15249965,1cyclictest17497-21sshd21:40:072
15249964,1cyclictest61650irq/122-eno123:45:142
15249961,3cyclictest0-21swapper/221:00:082
15249961,2cyclictest24736-21apt-get21:05:132
15249961,2cyclictest24736-21apt-get21:05:132
15249960,1cyclictest240-21systemd-journal19:55:002
15169962,2cyclictest0-21swapper/123:40:581
15169960,6cyclictest0-21swapper/100:17:581
15169960,4cyclictest0-21swapper/122:00:101
15169960,3cyclictest0-21swapper/123:35:131
15169960,3cyclictest0-21swapper/100:13:511
15169960,2cyclictest0-21swapper/121:45:111
15159965,1cyclictest26688-21ssh23:20:170
15159963,1cyclictest240-21systemd-journal22:50:010
15159960,6cyclictest0-21swapper/020:10:210
15159960,5cyclictest16153-21apt00:35:120
15159960,3cyclictest0-21swapper/023:40:050
15159960,0cyclictest0-21swapper/022:20:160
15159960,0cyclictest0-21swapper/021:07:410
15159960,0cyclictest0-21swapper/021:07:410
15159960,0cyclictest0-21swapper/019:30:110
15299954,1cyclictest35-21ksoftirqd/320:00:123
15299954,1cyclictest14348-21ssh00:30:273
15299953,1cyclictest22337-21sed19:50:153
15299951,2cyclictest240-21systemd-journal19:13:163
15299950,4cyclictest19778-21munin-run20:55:003
15299950,3cyclictest8015-21apt-get20:30:123
15299950,2cyclictest0-21swapper/319:44:183
15299950,2cyclictest0-21swapper/319:25:003
15299950,1cyclictest16367-21/usr/sbin/munin20:45:183
15299950,1cyclictest0-21swapper/323:40:123
15299950,1cyclictest0-21swapper/320:10:143
15249953,1cyclictest27795-21grep20:00:182
15249951,2cyclictest0-21swapper/220:25:112
15169955,0cyclictest0-21swapper/123:02:111
15169955,0cyclictest0-21swapper/120:51:311
15169955,0cyclictest0-21swapper/120:30:381
15169951,2cyclictest0-21swapper/100:25:111
15169950,5cyclictest0-21swapper/122:21:071
15169950,5cyclictest0-21swapper/120:46:451
15169950,5cyclictest0-21swapper/120:17:581
15169950,5cyclictest0-21swapper/119:44:221
15169950,5cyclictest0-21swapper/119:33:171
15169950,4cyclictest0-21swapper/122:47:441
15169950,3cyclictest28909-21chrt21:10:281
15169950,3cyclictest0-21swapper/123:06:591
15169950,3cyclictest0-21swapper/122:50:191
15169950,3cyclictest0-21swapper/122:19:471
15169950,3cyclictest0-21swapper/120:00:101
15169950,2cyclictest0-21swapper/122:40:111
15169950,2cyclictest0-21swapper/122:30:111
15169950,2cyclictest0-21swapper/121:05:131
15169950,2cyclictest0-21swapper/121:05:131
15169950,2cyclictest0-21swapper/100:38:481
15169950,2cyclictest0-21swapper/100:34:411
15169950,1cyclictest0-21swapper/122:35:151
15169950,0cyclictest0-21swapper/123:55:581
15169950,0cyclictest0-21swapper/100:22:051
15169950,0cyclictest0-21swapper/100:06:301
15159955,0cyclictest0-21swapper/020:45:180
15159953,1cyclictest21551-21/usr/sbin/munin19:50:150
15159953,1cyclictest18442-21grep20:50:150
15159950,5cyclictest0-21swapper/020:26:260
15159950,5cyclictest0-21swapper/019:42:220
15159950,4cyclictest26276-21/usr/sbin/munin20:00:190
15159950,2cyclictest0-21swapper/020:35:120
15159950,0cyclictest0-21swapper/020:30:030
15299942,1cyclictest25534-21tail21:05:163
15299942,1cyclictest25534-21tail21:05:153
15299942,1cyclictest23494-21netstat21:00:143
15299942,1cyclictest14772-21cpuspeed_turbos19:35:133
15299942,1cyclictest12689-21cut19:30:143
15299941,2cyclictest0-21swapper/320:20:113
15169944,0cyclictest0-21swapper/120:36:181
15169944,0cyclictest0-21swapper/120:24:041
15169943,1cyclictest0-21swapper/123:20:451
15169942,1cyclictest170732sleep121:40:011
15169941,2cyclictest0-21swapper/123:45:161
15169941,1cyclictest0-21swapper/119:45:171
15169940,3cyclictest0-21swapper/121:30:441
15169940,3cyclictest0-21swapper/121:28:591
15169940,2cyclictest0-21swapper/123:25:211
15169940,2cyclictest0-21swapper/123:12:361
15169940,2cyclictest0-21swapper/122:59:441
15169940,2cyclictest0-21swapper/122:59:441
15169940,2cyclictest0-21swapper/121:51:561
15169940,2cyclictest0-21swapper/119:55:121
15169940,2cyclictest0-21swapper/119:35:111
15169940,1cyclictest0-21swapper/123:16:411
15169940,1cyclictest0-21swapper/122:25:131
15169940,1cyclictest0-21swapper/121:36:461
15169940,1cyclictest0-21swapper/119:50:121
15169940,0cyclictest0-21swapper/122:10:211
15169940,0cyclictest0-21swapper/120:10:211
15169940,0cyclictest0-21swapper/119:15:011
21097230,1sleep10-21swapper/120:55:191
15169931,1cyclictest0-21swapper/120:40:161
15169931,1cyclictest0-21swapper/120:05:131
15169930,1cyclictest0-21swapper/121:00:121
15169930,0cyclictest0-21swapper/120:25:191
15169930,0cyclictest0-21swapper/119:20:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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