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2026-09-09 - 11:36
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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 Wed Sep 09, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283682228157,56sleep20-21swapper/219:08:472
281632210175,23sleep30-21swapper/319:06:063
283512207174,21sleep00-21swapper/019:08:330
283972205143,23sleep10-21swapper/119:09:111
47912700,0sleep10-21swapper/120:35:121
56462580,1sleep02853699cyclictest00:36:420
2856099190,17cyclictest4082-21ssh23:03:103
26722190,0sleep10-21swapper/119:20:151
2856099170,0cyclictest21007-21diskmemload23:39:373
2856099160,15cyclictest31957-21sed21:25:013
2856099160,15cyclictest31957-21sed21:25:003
2856099160,15cyclictest22859-21ssh21:56:173
2856099160,0cyclictest0-21swapper/321:13:413
2856099150,14cyclictest4339-21find23:50:013
2856099150,0cyclictest0-21swapper/323:30:173
2856099150,0cyclictest0-21swapper/322:05:153
2856099140,6cyclictest6039-21ssh21:33:143
2856099140,14cyclictest21007-21diskmemload22:39:003
2856099140,13cyclictest21007-21diskmemload22:47:023
2856099140,13cyclictest21007-21diskmemload21:52:283
2856099140,13cyclictest21007-21diskmemload21:45:353
2856099140,13cyclictest21007-21diskmemload00:19:183
2856099140,13cyclictest21007-21diskmemload00:05:343
2856099140,13cyclictest17054-21ntp_states19:50:183
2856099140,13cyclictest17029-21df_inode21:00:153
2856099140,13cyclictest13476-21latency_hist19:45:003
2856099140,13cyclictest0-21swapper/322:00:123
2856099140,0cyclictest0-21swapper/323:18:253
2856099140,0cyclictest0-21swapper/322:40:153
2854599140,13cyclictest0-21swapper/100:20:171
2856099132,10cyclictest893-21irqstats00:30:163
2856099130,13cyclictest21007-21diskmemload00:10:043
2856099130,12cyclictest21529-21irqstats20:00:183
2856099130,12cyclictest21007-21diskmemload23:44:123
2856099130,12cyclictest21007-21diskmemload23:29:093
2856099130,12cyclictest21007-21diskmemload22:28:573
2856099130,12cyclictest21007-21diskmemload22:22:143
2856099130,12cyclictest11203-21dump-pmu-power00:00:003
2856099130,12cyclictest0-21swapper/322:50:333
2856099130,0cyclictest31201-21ntpq20:20:163
2856099130,0cyclictest21007-21diskmemload23:09:593
2856099130,0cyclictest21007-21diskmemload00:26:253
2856099130,0cyclictest0-21swapper/323:20:243
2856099130,0cyclictest0-21swapper/320:40:153
2856099130,0cyclictest0-21swapper/300:20:423
2853699130,12cyclictest0-21swapper/019:30:170
2856099120,12cyclictest21007-21diskmemload22:17:083
2856099120,12cyclictest21007-21diskmemload00:36:523
2856099120,11cyclictest21007-21diskmemload23:11:143
2856099120,11cyclictest21007-21diskmemload21:25:263
2856099120,11cyclictest21007-21diskmemload21:18:403
2856099120,11cyclictest0-21swapper/320:32:403
2856099120,1cyclictest0-21swapper/319:35:143
2856099120,0cyclictest21007-21diskmemload21:41:093
2856099120,0cyclictest0-21swapper/323:46:273
2856099120,0cyclictest0-21swapper/322:55:563
2856099120,0cyclictest0-21swapper/322:34:563
2856099120,0cyclictest0-21swapper/322:10:473
2856099120,0cyclictest0-21swapper/321:37:193
2856099120,0cyclictest0-21swapper/300:00:513
2856099112,8cyclictest1748-21apt19:20:113
2856099111,9cyclictest18776-21fschecks_count19:55:153
2854599110,11cyclictest0-21swapper/122:34:201
33502107,1sleep228-21ksoftirqd/223:47:512
2856099104,5cyclictest11301-21snmpd20:35:093
2856099102,7cyclictest20116-21pmu-power21:05:183
2856099100,9cyclictest709-21gltestperf20:25:163
2856099100,9cyclictest4574-21cstates19:25:123
2856099100,10cyclictest0-21swapper/320:10:193
28553991010,0cyclictest0-21swapper/223:34:472
2855399100,9cyclictest0-21swapper/222:46:372
2855399100,6cyclictest0-21swapper/223:50:112
2855399100,10cyclictest0-21swapper/222:34:352
2853699103,3cyclictest21713-21perf00:15:000
28536991010,0cyclictest9-21ksoftirqd/000:00:280
241682100,0sleep021007-21diskmemload00:16:490
285609990,8cyclictest30036-21cat20:20:013
285609990,8cyclictest25095-21latency_hist20:10:003
285609990,7cyclictest240-21systemd-journal19:20:003
285369998,1cyclictest9-21ksoftirqd/022:30:010
285369993,5cyclictest7577-21users22:20:210
285369990,7cyclictest30957-21munin-node22:11:040
285609980,7cyclictest6521-21sh19:30:113
285609980,7cyclictest29590-21ls19:10:173
285609980,7cyclictest14149-21apt-get20:55:123
285609980,7cyclictest13770-21ls19:45:103
285609980,7cyclictest10101-21fschecks_time20:45:163
285609980,6cyclictest240-21systemd-journal20:50:003
285539986,1cyclictest61650irq/122-eno122:50:252
285539986,1cyclictest61650irq/122-eno122:35:162
285539986,1cyclictest61650irq/122-eno122:00:212
285539986,1cyclictest61650irq/122-eno121:55:152
285539986,1cyclictest11301-21snmpd21:32:092
285539986,1cyclictest11301-21snmpd21:13:192
285539986,1cyclictest11301-21snmpd00:27:522
285539981,6cyclictest0-21swapper/221:27:052
285539980,4cyclictest240-21systemd-journal23:24:552
285459980,2cyclictest0-21swapper/123:18:271
285369984,2cyclictest240-21systemd-journal22:35:000
285369981,6cyclictest25169-21if_eno122:00:160
285369981,6cyclictest21007-21diskmemload23:20:140
285369980,7cyclictest30777-21runrttasks00:25:320
285369980,7cyclictest24508-21ssh21:14:430
285369980,1cyclictest0-21swapper/019:40:130
32222270,1sleep10-21swapper/123:43:171
285539976,1cyclictest61650irq/122-eno123:25:122
285539976,1cyclictest61650irq/122-eno123:00:232
285539976,1cyclictest61650irq/122-eno122:41:402
285539976,1cyclictest61650irq/122-eno122:22:012
285539976,1cyclictest61650irq/122-eno121:50:282
285539976,1cyclictest61650irq/122-eno121:42:252
285539976,1cyclictest61650irq/122-eno121:23:142
285539976,1cyclictest61650irq/122-eno121:23:132
285539976,1cyclictest61650irq/122-eno120:35:182
285539976,1cyclictest61650irq/122-eno100:24:232
285539976,1cyclictest28971-21ntpq22:05:172
285539976,1cyclictest28-21ksoftirqd/220:55:122
285539976,1cyclictest11301-21snmpd00:38:132
285539976,0cyclictest61650irq/122-eno122:25:122
285539976,0cyclictest61650irq/122-eno122:10:172
285539976,0cyclictest61650irq/122-eno100:32:052
285539976,0cyclictest61650irq/122-eno100:03:342
285539975,1cyclictest9130-21ntpq23:55:172
285539975,1cyclictest61650irq/122-eno123:15:212
285539975,1cyclictest61650irq/122-eno120:40:192
285539975,1cyclictest61650irq/122-eno100:12:392
285539975,1cyclictest27438-21ssh23:35:212
285539975,1cyclictest11301-21snmpd23:40:382
285539975,1cyclictest11301-21snmpd22:16:422
285539975,1cyclictest11301-21snmpd19:17:232
285539972,4cyclictest3499-21tr20:30:192
285539972,2cyclictest61650irq/122-eno119:25:132
285539971,6cyclictest0-21swapper/222:58:582
285539971,6cyclictest0-21swapper/220:03:392
285539971,2cyclictest21007-21diskmemload21:35:122
285539970,6cyclictest0-21swapper/220:28:272
285539970,2cyclictest0-21swapper/223:10:482
285459971,2cyclictest0-21swapper/123:00:211
285459970,6cyclictest0-21swapper/123:05:341
285459970,6cyclictest0-21swapper/119:35:151
285459970,4cyclictest0-21swapper/123:31:071
285459970,4cyclictest0-21swapper/122:29:051
285459970,4cyclictest0-21swapper/122:00:181
285459970,4cyclictest0-21swapper/121:22:371
285459970,4cyclictest0-21swapper/121:22:371
285459970,3cyclictest0-21swapper/122:59:121
285459970,3cyclictest0-21swapper/122:11:231
285459970,3cyclictest0-21swapper/121:45:591
285459970,2cyclictest0-21swapper/121:14:081
285459970,2cyclictest0-21swapper/100:06:491
285459970,1cyclictest0-21swapper/122:40:541
285459970,1cyclictest0-21swapper/121:52:321
285459970,1cyclictest0-21swapper/121:35:161
285369976,1cyclictest6888-21aten2.4-expect21:35:120
285369976,1cyclictest25153-21ssh22:45:540
285369976,1cyclictest11301-21snmpd20:19:180
285369976,1cyclictest11301-21snmpd19:57:150
285369976,1cyclictest11301-21snmpd19:53:300
285369975,1cyclictest31433-21perl19:15:010
285369975,1cyclictest30957-21munin-node19:15:000
285369975,1cyclictest26073-21/usr/sbin/munin23:35:150
285369975,1cyclictest12304-21diskstats20:50:150
285369974,1cyclictest9-21ksoftirqd/021:00:000
285369971,3cyclictest21007-21diskmemload23:25:180
285369971,0cyclictest21007-21diskmemload23:30:240
285369970,6cyclictest9536-21telnet20:45:130
285369970,6cyclictest32555-21telnet00:30:130
285369970,6cyclictest28623-21cut22:05:140
285369970,6cyclictest2835-21ssh22:15:150
285369970,6cyclictest2011-21ntp_states23:45:180
285369970,6cyclictest1801-21ssh21:26:130
285369970,6cyclictest1416-21ssh23:00:040
285369970,6cyclictest12444-21ssh21:41:220
285369970,6cyclictest0-21swapper/023:15:200
285369970,4cyclictest19109-21sh22:38:580
285369970,2cyclictest0-21swapper/000:22:420
285369970,1cyclictest31686-21ssh23:41:310
285369970,1cyclictest28540-21dpkg21:20:140
285369970,1cyclictest28540-21dpkg21:20:130
285369970,1cyclictest28078-21ntpq22:50:230
285369970,1cyclictest21007-21diskmemload23:05:540
285369970,1cyclictest21007-21diskmemload22:55:440
285369970,1cyclictest21007-21diskmemload00:05:180
285369970,1cyclictest19742-21dpkg22:40:130
285369970,1cyclictest10277-21ssh23:10:390
285369970,1cyclictest0-21swapper/023:55:130
285369970,1cyclictest0-21swapper/021:30:250
285369970,1cyclictest0-21swapper/019:40:000
8689260,0sleep10-21swapper/120:40:211
285539966,0cyclictest61650irq/122-eno123:05:022
285539966,0cyclictest61650irq/122-eno121:45:152
285539966,0cyclictest61650irq/122-eno121:15:272
285539966,0cyclictest61650irq/122-eno120:52:252
285539966,0cyclictest61650irq/122-eno120:21:252
285539966,0cyclictest61650irq/122-eno119:56:052
285539966,0cyclictest61650irq/122-eno119:43:252
285539966,0cyclictest61650irq/122-eno119:21:262
285539966,0cyclictest61650irq/122-eno100:15:132
285539965,1cyclictest61650irq/122-eno119:35:182
285539964,1cyclictest61650irq/122-eno120:45:142
285539964,1cyclictest61650irq/122-eno119:50:132
285539964,1cyclictest28-21ksoftirqd/221:05:122
285539963,2cyclictest15804-21wc00:05:162
285539960,3cyclictest0-21swapper/219:45:102
285459966,0cyclictest0-21swapper/120:05:171
285459962,3cyclictest0-21swapper/100:11:501
285459962,1cyclictest0-21swapper/121:55:191
285459960,6cyclictest0-21swapper/123:55:361
285459960,6cyclictest0-21swapper/123:20:591
285459960,6cyclictest0-21swapper/121:32:021
285459960,6cyclictest0-21swapper/121:27:171
285459960,6cyclictest0-21swapper/121:07:221
285459960,5cyclictest0-21swapper/100:35:251
285459960,4cyclictest0-21swapper/123:13:361
285459960,4cyclictest0-21swapper/121:40:071
285459960,4cyclictest0-21swapper/100:30:571
285459960,4cyclictest0-21swapper/100:01:571
285459960,3cyclictest0-21swapper/123:50:101
285459960,3cyclictest0-21swapper/123:45:261
285459960,3cyclictest0-21swapper/123:25:591
285459960,3cyclictest0-21swapper/122:17:151
285459960,3cyclictest0-21swapper/122:06:421
285459960,3cyclictest0-21swapper/121:19:391
285459960,2cyclictest0-21swapper/123:35:131
285459960,2cyclictest0-21swapper/122:35:181
285459960,2cyclictest0-21swapper/100:15:201
285459960,1cyclictest0-21swapper/122:45:101
285459960,1cyclictest0-21swapper/122:23:561
285459960,0cyclictest0-21swapper/122:53:231
285369965,1cyclictest3264-21irqstats20:30:170
285369965,1cyclictest15286-21sshd19:45:200
285369963,2cyclictest31404-21find20:20:180
285369960,6cyclictest26816-21timerandwakeup20:10:210
285369960,6cyclictest0-21swapper/021:55:230
285369960,6cyclictest0-21swapper/021:09:240
285369960,5cyclictest4661-21telnet23:50:120
285369960,3cyclictest0-21swapper/021:45:110
285369960,3cyclictest0-21swapper/019:25:100
285369960,1cyclictest19084-21unixbench_singl21:50:230
285369960,0cyclictest0-21swapper/021:15:130
285369960,0cyclictest0-21swapper/020:39:210
285369960,0cyclictest0-21swapper/019:20:180
285539955,0cyclictest61650irq/122-eno120:05:062
285539953,1cyclictest61650irq/122-eno119:30:122
285539953,1cyclictest0-21swapper/221:00:202
285539950,4cyclictest28859-21hostname19:10:152
285539950,1cyclictest27680-21/usr/sbin/munin20:15:152
285539950,1cyclictest0-21swapper/220:10:152
285459952,2cyclictest0-21swapper/120:50:111
285459951,2cyclictest0-21swapper/119:35:001
285459950,5cyclictest0-21swapper/121:02:551
285459950,5cyclictest0-21swapper/120:24:001
285459950,5cyclictest0-21swapper/120:16:081
285459950,5cyclictest0-21swapper/119:15:031
285459950,4cyclictest0-21swapper/120:00:191
285459950,2cyclictest0-21swapper/119:10:131
285459950,2cyclictest0-21swapper/100:25:111
285459950,1cyclictest0-21swapper/120:10:141
285459950,0cyclictest0-21swapper/120:59:431
285369951,3cyclictest769-21lldpd21:00:120
285369950,5cyclictest0-21swapper/020:00:060
285369950,4cyclictest32424-21/usr/sbin/munin20:25:180
285369950,1cyclictest0-21swapper/020:05:140
285369950,0cyclictest0-21swapper/020:40:070
285459941,1cyclictest0-21swapper/119:50:131
285459940,3cyclictest0-21swapper/120:25:131
285459940,2cyclictest0-21swapper/120:30:141
285459940,1cyclictest0-21swapper/119:49:121
285459940,0cyclictest0-21swapper/119:57:271
285459931,1cyclictest0-21swapper/120:45:221
285459931,1cyclictest0-21swapper/119:40:131
285459931,1cyclictest0-21swapper/119:25:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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