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2026-04-04 - 03:55
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Sat Apr 04, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
91762246156,77sleep00-21swapper/019:09:290
90692210150,21sleep30-21swapper/319:08:073
91932202161,27sleep20-21swapper/219:09:442
88712200161,26sleep10-21swapper/119:05:321
315582600,0sleep20-21swapper/200:35:152
9311991210,1cyclictest9-21ksoftirqd/023:55:000
932999119,1cyclictest35-21ksoftirqd/320:00:013
932499118,1cyclictest28-21ksoftirqd/220:00:002
931199119,1cyclictest9-21ksoftirqd/021:05:010
9311991110,1cyclictest9-21ksoftirqd/020:40:010
9311991110,1cyclictest9-21ksoftirqd/000:20:150
932999100,10cyclictest29675-21cat21:00:003
932499104,4cyclictest23583-21sh22:18:032
932499100,8cyclictest0-21swapper/220:13:222
932499100,6cyclictest14123-21apt-get21:25:122
931199109,1cyclictest9-21ksoftirqd/022:59:210
931199109,1cyclictest9-21ksoftirqd/022:05:120
931199109,1cyclictest9-21ksoftirqd/021:45:010
931199102,4cyclictest19450-21latency_hist19:30:010
251642100,1sleep20-21swapper/222:20:152
93299995,3cyclictest561-21nscd22:49:253
93299990,6cyclictest14966-21kworker/u8:222:40:163
93299990,6cyclictest14966-21kworker/u8:222:40:163
93299990,4cyclictest0-21swapper/300:33:583
93249999,0cyclictest0-21swapper/200:13:072
93249998,1cyclictest28-21ksoftirqd/222:50:012
93249998,1cyclictest28-21ksoftirqd/219:40:002
93249998,1cyclictest2301-21sh22:32:042
93249997,1cyclictest28-21ksoftirqd/220:30:002
93249991,1cyclictest0-21swapper/222:35:202
93249990,1cyclictest0-21swapper/223:40:112
93249990,1cyclictest0-21swapper/200:28:042
93119998,1cyclictest9-21ksoftirqd/023:09:590
93119998,1cyclictest9-21ksoftirqd/019:35:130
93119997,1cyclictest9-21ksoftirqd/022:20:150
93119997,1cyclictest9-21ksoftirqd/022:19:590
93119997,1cyclictest9-21ksoftirqd/022:00:000
93119997,1cyclictest9-21ksoftirqd/020:55:140
93119997,1cyclictest9-21ksoftirqd/020:55:010
93119997,1cyclictest9-21ksoftirqd/020:30:130
93119992,3cyclictest14686-21munin-run19:19:590
93119991,4cyclictest0-21swapper/023:25:010
93119990,1cyclictest240-21systemd-journal20:47:520
93299982,2cyclictest240-21systemd-journal23:34:423
93299980,5cyclictest0-21swapper/300:05:163
93249986,1cyclictest61650irq/122-eno122:25:152
93249986,1cyclictest61650irq/122-eno100:08:172
93249986,1cyclictest28-21ksoftirqd/222:09:592
93249980,7cyclictest0-21swapper/200:00:002
93249980,6cyclictest1982-21sendmail-mta22:57:562
93249980,4cyclictest1991-21diskmemload22:50:162
93119987,1cyclictest9-21ksoftirqd/021:45:130
93119987,1cyclictest9-21ksoftirqd/021:40:010
93119987,1cyclictest9-21ksoftirqd/021:20:140
93119985,1cyclictest9-21ksoftirqd/020:09:590
93119980,7cyclictest28099-21sh00:30:150
93119980,7cyclictest1463-21ssh00:37:570
93119980,7cyclictest10318-21ntp_states22:00:170
93119980,6cyclictest21528-21kworker/0:020:19:590
93119980,5cyclictest1991-21diskmemload23:55:100
93299976,1cyclictest21661-21ntpq20:40:173
93299976,1cyclictest1747-21ntpd23:05:593
93299975,1cyclictest31951-21ssh22:29:533
93299975,1cyclictest23792-21ssh22:18:343
93299975,1cyclictest15877-21fschecks_time22:50:153
93299973,2cyclictest240-21systemd-journal22:31:103
93299972,3cyclictest1991-21diskmemload23:57:203
93299971,4cyclictest17281-21apt-get19:25:103
93299971,4cyclictest0-21swapper/321:50:113
93299971,2cyclictest0-21swapper/319:31:413
93299970,5cyclictest0-21swapper/322:01:503
93299970,4cyclictest25876-21switchtime19:40:193
93299970,4cyclictest0-21swapper/300:10:103
93299970,2cyclictest0-21swapper/323:12:223
93249977,0cyclictest0-21swapper/200:15:352
93249976,1cyclictest61650irq/122-eno121:36:502
93249976,1cyclictest61650irq/122-eno121:20:172
93249976,1cyclictest61650irq/122-eno121:17:072
93249976,1cyclictest61650irq/122-eno100:30:112
93249976,1cyclictest61650irq/122-eno100:00:132
93249976,1cyclictest1991-21diskmemload21:10:002
93249976,1cyclictest18157-21cat19:25:142
93249976,1cyclictest0-21swapper/220:05:172
93249976,0cyclictest61650irq/122-eno123:29:202
93249975,1cyclictest61650irq/122-eno123:35:102
93249975,1cyclictest61650irq/122-eno123:00:162
93249975,1cyclictest61650irq/122-eno121:45:112
93249975,1cyclictest61650irq/122-eno120:40:122
93249975,1cyclictest25955-21cat23:45:152
93249974,3cyclictest15934-21ssh23:31:552
93249974,1cyclictest26776-21apt-get23:05:122
93199970,4cyclictest0-21swapper/122:18:461
93199970,3cyclictest0-21swapper/100:30:111
93199970,2cyclictest0-21swapper/123:12:221
93119977,0cyclictest9-21ksoftirqd/020:25:140
93119976,1cyclictest9-21ksoftirqd/022:10:140
93119976,1cyclictest9-21ksoftirqd/021:25:150
93119976,1cyclictest9-21ksoftirqd/020:10:170
93119976,1cyclictest9-21ksoftirqd/000:05:120
93119975,1cyclictest9-21ksoftirqd/022:40:140
93119975,1cyclictest9-21ksoftirqd/022:40:140
93119975,1cyclictest9-21ksoftirqd/022:35:140
93119975,1cyclictest9-21ksoftirqd/021:10:110
93119975,1cyclictest9-21ksoftirqd/019:45:130
93119975,1cyclictest30562-21ssh23:10:050
93119975,0cyclictest1991-21diskmemload00:25:020
93119970,7cyclictest0-21swapper/019:30:180
93119970,6cyclictest6652-21df_inode21:15:140
93119970,6cyclictest4701-21ssh21:54:150
93119970,6cyclictest3025-21smartctl20:00:180
93119970,6cyclictest23854-21irqstats23:00:160
93119970,6cyclictest1999-21apt-get23:15:100
93119970,6cyclictest18426-21cpuspeed_turbos21:30:130
93119970,6cyclictest17362-21/usr/sbin/munin23:35:140
93119970,6cyclictest16660-21users19:20:220
93119970,6cyclictest0-21swapper/000:16:080
93119970,3cyclictest3478-21perf22:35:000
93119970,2cyclictest28968-21df_inode22:25:120
93119970,1cyclictest6324-21ssh00:01:250
93119970,1cyclictest25042-21/usr/sbin/munin23:45:180
93119970,1cyclictest14874-21ssh22:49:490
93119970,1cyclictest14797-21ssh00:13:350
93119970,1cyclictest0-21swapper/023:34:230
93299966,0cyclictest1747-21ntpd22:55:583
93299966,0cyclictest1747-21ntpd20:30:583
93299965,1cyclictest7318-21ssh21:56:003
93299965,1cyclictest27025-21ssh23:45:533
93299965,1cyclictest25164-21ssh23:01:313
93299965,1cyclictest19102-21cat21:30:153
93299965,1cyclictest19068-21ssh00:19:153
93299965,1cyclictest1747-21ntpd20:25:583
93299965,1cyclictest1747-21ntpd20:20:593
93299965,1cyclictest1747-21ntpd19:10:593
93299965,0cyclictest4575-21ssh21:11:583
93299965,0cyclictest19649-21ssh00:20:083
93299964,1cyclictest1747-21ntpd20:45:593
93299963,1cyclictest294-21systemd-udevd21:17:073
93299963,1cyclictest240-21systemd-journal21:24:543
93299962,3cyclictest1991-21diskmemload21:45:173
93299961,4cyclictest26051-21idleruntime20:50:143
93299961,1cyclictest26231-21timerandwakeup22:20:203
93299961,1cyclictest16952-21apt-get22:10:133
93299960,4cyclictest240-21systemd-journal20:14:543
93299960,4cyclictest0-21swapper/323:15:093
93299960,3cyclictest19285-21ntp_states20:35:183
93299960,3cyclictest0-21swapper/322:37:333
93299960,3cyclictest0-21swapper/321:36:473
93299960,2cyclictest2022-21diskmemload00:39:243
93299960,2cyclictest16714-21apt-key22:10:013
93299960,2cyclictest0-21swapper/323:54:443
93299960,2cyclictest0-21swapper/323:44:493
93299960,2cyclictest0-21swapper/300:26:393
93299960,1cyclictest0-21swapper/323:20:103
93249966,0cyclictest61650irq/122-eno123:50:122
93249966,0cyclictest61650irq/122-eno122:00:232
93249966,0cyclictest61650irq/122-eno121:56:192
93249966,0cyclictest61650irq/122-eno120:35:112
93249966,0cyclictest61650irq/122-eno120:20:322
93249966,0cyclictest61650irq/122-eno120:16:082
93249966,0cyclictest61650irq/122-eno120:02:142
93249966,0cyclictest61650irq/122-eno119:34:572
93249965,1cyclictest61650irq/122-eno123:15:152
93249965,1cyclictest61650irq/122-eno122:40:172
93249965,1cyclictest61650irq/122-eno122:40:172
93249965,1cyclictest61650irq/122-eno122:10:072
93249965,1cyclictest61650irq/122-eno121:50:142
93249965,1cyclictest61650irq/122-eno121:40:122
93249965,1cyclictest61650irq/122-eno120:50:132
93249965,1cyclictest61650irq/122-eno119:15:102
93249965,1cyclictest61650irq/122-eno119:10:132
93249965,1cyclictest28-21ksoftirqd/220:55:102
93249964,1cyclictest61650irq/122-eno123:20:132
93249964,1cyclictest61650irq/122-eno121:30:112
93249964,1cyclictest30659-21aten2.4-expect23:10:102
93249960,4cyclictest0-21swapper/200:20:122
93199962,1cyclictest0-21swapper/123:40:361
93199960,6cyclictest0-21swapper/121:26:171
93199960,6cyclictest0-21swapper/119:44:541
93199960,5cyclictest0-21swapper/121:45:581
93199960,4cyclictest0-21swapper/121:52:401
93199960,3cyclictest0-21swapper/123:35:171
93199960,3cyclictest0-21swapper/122:36:501
93199960,3cyclictest0-21swapper/120:40:201
93199960,2cyclictest0-21swapper/100:20:131
93199960,0cyclictest0-21swapper/122:25:101
93119965,1cyclictest9-21ksoftirqd/019:10:140
93119965,1cyclictest18328-1kworker/u9:123:40:060
93119962,0cyclictest0-21swapper/022:50:180
93119960,6cyclictest0-21swapper/020:22:280
93119960,6cyclictest0-21swapper/019:44:260
93119960,0cyclictest0-21swapper/023:25:040
93119960,0cyclictest0-21swapper/021:05:100
93119960,0cyclictest0-21swapper/019:55:100
18783260,0sleep10-21swapper/121:30:151
93299954,1cyclictest35-21ksoftirqd/320:16:153
93299954,1cyclictest35-21ksoftirqd/319:46:563
93299954,1cyclictest1747-21ntpd19:35:583
93299953,1cyclictest3605-21taskset20:03:293
93299952,3cyclictest0-21swapper/323:35:173
93299952,1cyclictest29317-21apt-get19:50:133
93299951,1cyclictest12553-21apt-get19:15:103
93299951,1cyclictest0-21swapper/321:40:113
93299950,3cyclictest0-21swapper/300:00:153
93299950,2cyclictest5378-21python20:05:203
93299950,2cyclictest240-21systemd-journal19:20:203
93299950,2cyclictest0-21swapper/321:25:563
93299950,0cyclictest0-21swapper/323:25:093
93249955,0cyclictest61650irq/122-eno121:05:582
93249955,0cyclictest61650irq/122-eno120:30:192
93249955,0cyclictest61650irq/122-eno119:50:012
93249955,0cyclictest61650irq/122-eno119:45:102
93249955,0cyclictest61650irq/122-eno119:40:122
93249953,1cyclictest32151-21date21:05:002
93249952,2cyclictest0-21swapper/219:20:132
93249950,1cyclictest0-21swapper/220:45:142
93199952,1cyclictest0-21swapper/123:04:101
93199952,1cyclictest0-21swapper/122:58:261
93199952,1cyclictest0-21swapper/122:45:001
93199952,1cyclictest0-21swapper/122:45:001
93199952,1cyclictest0-21swapper/122:31:251
93199952,1cyclictest0-21swapper/122:04:591
93199952,1cyclictest0-21swapper/121:55:541
93199952,1cyclictest0-21swapper/121:15:071
93199952,1cyclictest0-21swapper/121:00:001
93199952,1cyclictest0-21swapper/120:30:361
93199952,1cyclictest0-21swapper/120:20:371
93199952,1cyclictest0-21swapper/120:09:061
93199952,1cyclictest0-21swapper/119:55:371
93199952,1cyclictest0-21swapper/119:50:071
93199952,1cyclictest0-21swapper/119:35:211
93199952,1cyclictest0-21swapper/119:25:051
93199952,1cyclictest0-21swapper/119:20:201
93199952,1cyclictest0-21swapper/119:17:061
93199952,1cyclictest0-21swapper/119:14:051
93199952,1cyclictest0-21swapper/100:18:421
93199951,3cyclictest153762chrt23:30:261
93199951,2cyclictest0-21swapper/121:20:171
93199950,5cyclictest0-21swapper/120:50:581
93199950,5cyclictest0-21swapper/120:10:581
93199950,5cyclictest0-21swapper/119:30:591
93199950,3cyclictest0-21swapper/123:50:031
93199950,3cyclictest0-21swapper/123:45:171
93199950,3cyclictest0-21swapper/123:16:111
93199950,3cyclictest0-21swapper/121:11:241
93199950,3cyclictest0-21swapper/100:35:261
93199950,3cyclictest0-21swapper/100:10:141
93199950,3cyclictest0-21swapper/100:05:141
93199950,2cyclictest0-21swapper/123:07:421
93199950,2cyclictest0-21swapper/122:51:161
93199950,2cyclictest0-21swapper/122:05:141
93199950,2cyclictest0-21swapper/120:45:111
93199950,2cyclictest0-21swapper/100:25:121
93199950,2cyclictest0-21swapper/100:00:081
93199950,1cyclictest0-21swapper/123:25:221
93199950,1cyclictest0-21swapper/122:10:211
93199950,1cyclictest0-21swapper/121:40:151
93199950,1cyclictest0-21swapper/121:39:441
93199950,0cyclictest0-21swapper/120:35:581
93199950,0cyclictest0-21swapper/120:18:271
93119950,5cyclictest0-21swapper/019:51:530
93119950,4cyclictest20763-21tr20:40:120
93299941,0cyclictest32285-21apt-get21:05:113
93299940,1cyclictest240-21systemd-journal21:00:013
93199944,0cyclictest0-21swapper/122:20:081
93199941,2cyclictest0-21swapper/123:20:101
93199941,1cyclictest0-21swapper/119:45:121
93199940,3cyclictest0-21swapper/123:55:161
93199940,3cyclictest0-21swapper/122:45:021
93199940,2cyclictest0-21swapper/120:25:121
93199940,0cyclictest0-21swapper/121:05:191
93199940,0cyclictest0-21swapper/120:55:181
93199930,1cyclictest0-21swapper/120:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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