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2026-07-24 - 21:23
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Fri Jul 24, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
300912209176,21sleep30-21swapper/307:05:383
302732207149,44sleep00-21swapper/007:08:010
303112206154,41sleep10-21swapper/107:08:301
301682201161,26sleep20-21swapper/207:06:382
174782580,0sleep10-21swapper/111:15:321
30534991716,1cyclictest28-21ksoftirqd/211:46:412
63492140,0sleep20-21swapper/209:30:122
30534991311,1cyclictest0-21swapper/211:50:122
30523991313,0cyclictest0-21swapper/008:45:110
30534991211,1cyclictest6993-21ssh12:33:472
3052399122,5cyclictest411-21munin-node07:15:010
3053499119,1cyclictest28-21ksoftirqd/207:45:002
3053499119,1cyclictest28-21ksoftirqd/207:20:002
3053499109,1cyclictest0-21swapper/211:15:272
3053499108,1cyclictest28-21ksoftirqd/212:05:152
3052499100,2cyclictest0-21swapper/108:15:121
149502100,0sleep20-21swapper/210:26:442
305349997,1cyclictest28-21ksoftirqd/207:47:272
305349991,7cyclictest411-21munin-node12:00:572
305239990,8cyclictest0-21swapper/011:43:090
305409987,1cyclictest35-21ksoftirqd/309:20:003
305409986,1cyclictest35-21ksoftirqd/308:14:183
305409986,1cyclictest27318-21cat11:30:153
305409985,1cyclictest35-21ksoftirqd/308:59:593
305349987,1cyclictest28-21ksoftirqd/212:25:002
305349987,1cyclictest28-21ksoftirqd/211:35:132
305349987,1cyclictest0-21swapper/207:11:272
305349986,1cyclictest61650irq/122-eno109:50:012
305349986,1cyclictest61650irq/122-eno109:00:152
305349986,1cyclictest28-21ksoftirqd/208:45:002
305349986,1cyclictest11301-21snmpd12:26:562
305349986,1cyclictest11301-21snmpd11:12:112
305349986,1cyclictest11301-21snmpd11:09:502
305349983,2cyclictest240-21systemd-journal09:18:072
305349980,7cyclictest411-21munin-node07:57:562
305349980,5cyclictest32237-21apt-get08:20:112
305239986,1cyclictest9-21ksoftirqd/008:55:000
305239986,1cyclictest11301-21snmpd12:10:560
305239982,5cyclictest23092-21perf10:40:000
305239981,6cyclictest6459-1kworker/u9:011:47:310
305239981,6cyclictest26710-21ssh09:14:150
305239981,6cyclictest12550-21ssh11:10:130
305239981,4cyclictest571-21nscd09:20:340
305239980,7cyclictest28289-21ssh12:17:480
305239980,7cyclictest18263-21ssh11:18:040
305239980,7cyclictest0-21swapper/011:35:170
305239980,3cyclictest0-21swapper/012:08:280
305239980,1cyclictest26378-21ssh11:30:050
305239980,1cyclictest12034-21ssh09:36:350
305239980,1cyclictest12034-21ssh09:36:350
305239980,1cyclictest0-21swapper/008:25:130
305409976,1cyclictest30839-21cat11:35:153
305409976,1cyclictest14640-21ntpq09:40:183
305409976,1cyclictest11301-21snmpd11:52:403
305409975,1cyclictest7645-21ssh11:03:083
305409975,1cyclictest35-21ksoftirqd/308:35:013
305409975,1cyclictest25378-21ssh11:27:363
305409975,1cyclictest1584-21ntp_states12:25:193
305409975,1cyclictest11836-21ssh10:23:023
305409975,1cyclictest11301-21snmpd12:05:193
305409974,2cyclictest561-21nscd11:45:163
305409974,1cyclictest240-21systemd-journal11:45:003
305409973,2cyclictest240-21systemd-journal10:44:093
305409973,2cyclictest240-21systemd-journal10:05:233
305409973,2cyclictest240-21systemd-journal08:07:053
305409972,3cyclictest9428-21cut07:30:173
305409972,2cyclictest13155-21apt-get07:40:123
305409970,6cyclictest23376-21diskmemload11:05:413
305409970,4cyclictest693-21runrttasks08:52:083
305409970,4cyclictest0-21swapper/309:11:553
305409970,2cyclictest0-21swapper/308:35:113
305349977,0cyclictest0-21swapper/207:50:122
305349976,1cyclictest61650irq/122-eno111:30:042
305349976,1cyclictest61650irq/122-eno110:57:302
305349976,1cyclictest61650irq/122-eno110:10:152
305349976,1cyclictest61650irq/122-eno109:43:552
305349976,1cyclictest61650irq/122-eno109:21:512
305349976,1cyclictest61650irq/122-eno109:13:532
305349976,0cyclictest61650irq/122-eno110:00:082
305349976,0cyclictest61650irq/122-eno109:50:152
305349975,1cyclictest61650irq/122-eno111:55:172
305349975,1cyclictest61650irq/122-eno111:41:102
305349975,1cyclictest61650irq/122-eno111:25:182
305349975,1cyclictest61650irq/122-eno110:35:062
305349975,1cyclictest3446-21ssh09:25:162
305349975,1cyclictest29417-21ssh10:47:532
305349975,1cyclictest28-21ksoftirqd/212:20:002
305349974,2cyclictest28-21ksoftirqd/209:56:112
305349974,2cyclictest0-21swapper/210:05:112
305349973,3cyclictest5825-21cron07:25:002
305349972,3cyclictest16273-21apt-get10:30:122
305349971,5cyclictest693-21runrttasks10:15:042
305249974,0cyclictest0-21swapper/109:23:381
305249970,4cyclictest0-21swapper/111:25:091
305249970,4cyclictest0-21swapper/110:50:171
305249970,4cyclictest0-21swapper/109:55:211
305249970,1cyclictest0-21swapper/108:00:131
305249970,0cyclictest0-21swapper/107:45:151
305249970,0cyclictest0-21swapper/107:30:111
305239977,0cyclictest23376-21diskmemload11:51:030
305239976,1cyclictest4357-1kworker/u9:011:02:370
305239976,1cyclictest4336-21ssh10:58:510
305239976,1cyclictest13627-1kworker/u9:012:00:160
305239975,1cyclictest9-21ksoftirqd/008:05:000
305239975,1cyclictest3715-21/usr/sbin/munin07:20:130
305239975,1cyclictest19746-21ssh09:48:380
305239975,1cyclictest13919-21ssh11:56:560
305239973,1cyclictest15710-21/usr/sbin/munin07:45:210
305239972,3cyclictest31040-21apt-get10:05:110
305239971,6cyclictest561-21nscd09:27:290
305239970,6cyclictest4490-21ssh12:30:130
305239970,6cyclictest28780-21ssh10:45:520
305239970,6cyclictest0-21swapper/012:35:150
305239970,6cyclictest0-21swapper/011:20:150
305239970,6cyclictest0-21swapper/010:40:140
305239970,4cyclictest0-21swapper/012:20:150
305239970,1cyclictest8547-21aten2.4-expect11:05:110
305239970,1cyclictest4743-21ssh10:12:560
305239970,1cyclictest240-21systemd-journal10:30:010
305239970,1cyclictest23376-21diskmemload10:16:240
305239970,1cyclictest12748-21apt-get10:25:110
305239970,1cyclictest0-21swapper/010:02:320
2987270,0sleep20-21swapper/208:25:172
29642270,0sleep10-21swapper/110:01:281
25670270,0sleep20-21swapper/208:05:132
10322270,0sleep30-21swapper/312:38:103
305409965,1cyclictest9813-21ssh09:35:063
305409965,1cyclictest9813-21ssh09:35:063
305409965,1cyclictest8135-21ssh09:30:453
305409965,1cyclictest5986-21ssh12:30:313
305409965,1cyclictest35-21ksoftirqd/309:00:123
305409965,1cyclictest3324-21ntpq08:25:183
305409965,1cyclictest32269-21ssh12:24:123
305409965,1cyclictest28019-21ssh12:16:563
305409965,1cyclictest26625-21ssh09:58:083
305409965,1cyclictest24342-21ssh12:11:293
305409965,1cyclictest22320-21ssh10:37:453
305409965,1cyclictest18686-21ssh11:19:273
305409965,1cyclictest16988-21ssh12:00:273
305409965,1cyclictest14314-21ssh11:11:413
305409965,0cyclictest23376-21diskmemload09:26:023
305409964,1cyclictest4218-21ssh10:11:163
305409964,1cyclictest30007-21ssh10:02:373
305409964,1cyclictest23376-21diskmemload10:45:173
305409964,1cyclictest23376-21diskmemload10:17:553
305409963,1cyclictest240-21systemd-journal10:54:103
305409963,1cyclictest240-21systemd-journal09:45:083
305409963,1cyclictest240-21systemd-journal08:47:523
305409963,0cyclictest23376-21diskmemload11:21:123
305409962,3cyclictest30576-21gltestperf08:15:153
305409960,3cyclictest0-21swapper/310:30:063
305409960,3cyclictest0-21swapper/310:25:113
305409960,2cyclictest0-21swapper/309:50:113
305349966,0cyclictest61650irq/122-eno112:36:342
305349966,0cyclictest61650irq/122-eno111:01:472
305349966,0cyclictest61650irq/122-eno110:21:212
305349966,0cyclictest61650irq/122-eno109:07:282
305349966,0cyclictest61650irq/122-eno108:50:222
305349966,0cyclictest61650irq/122-eno108:17:242
305349966,0cyclictest61650irq/122-eno108:03:472
305349966,0cyclictest61650irq/122-eno107:38:042
305349966,0cyclictest61650irq/122-eno107:30:182
305349966,0cyclictest61650irq/122-eno107:26:212
305349965,1cyclictest61650irq/122-eno110:50:122
305349965,1cyclictest28-21ksoftirqd/208:55:012
305349965,1cyclictest0-21swapper/212:10:152
305349964,1cyclictest11609-21apt-get08:45:112
305349963,1cyclictest240-21systemd-journal08:30:062
305349963,1cyclictest23376-21diskmemload11:20:002
305349961,1cyclictest0-21swapper/208:10:222
305349960,3cyclictest0-21swapper/210:40:412
305349960,3cyclictest0-21swapper/209:35:092
305349960,3cyclictest0-21swapper/209:35:092
305249961,3cyclictest280032sleep110:45:171
305249960,6cyclictest0-21swapper/112:10:461
305249960,6cyclictest0-21swapper/112:00:171
305249960,6cyclictest0-21swapper/110:15:071
305249960,5cyclictest0-21swapper/111:30:091
305249960,4cyclictest0-21swapper/112:25:161
305249960,4cyclictest0-21swapper/112:23:141
305249960,4cyclictest0-21swapper/110:21:101
305249960,4cyclictest0-21swapper/109:47:001
305249960,4cyclictest0-21swapper/109:37:271
305249960,4cyclictest0-21swapper/109:37:271
305249960,3cyclictest0-21swapper/111:00:191
305249960,3cyclictest0-21swapper/109:51:471
305249960,3cyclictest0-21swapper/109:31:491
305249960,2cyclictest0-21swapper/112:36:551
305249960,2cyclictest0-21swapper/111:35:191
305249960,2cyclictest0-21swapper/111:20:051
305239966,0cyclictest0-21swapper/008:11:480
305239965,1cyclictest9-21ksoftirqd/008:19:570
305239965,1cyclictest7003-21telnet08:35:120
305239965,1cyclictest14293-21ntpq07:40:180
305239964,1cyclictest23407-21ssh11:25:140
305239964,1cyclictest1747-21ntpd07:35:590
305239964,1cyclictest15280-21ssh09:40:300
305239963,1cyclictest240-21systemd-journal08:08:500
305239961,5cyclictest29626-1kworker/u9:010:51:370
305239960,6cyclictest0-21swapper/012:25:520
305239960,6cyclictest0-21swapper/009:00:120
305239960,5cyclictest8236-21ssh09:31:000
305239960,5cyclictest0-21swapper/008:55:130
305239960,2cyclictest0-21swapper/009:50:200
305239960,1cyclictest0-21swapper/009:17:150
305239960,0cyclictest0-21swapper/010:20:000
305239960,0cyclictest0-21swapper/009:55:210
305239960,0cyclictest0-21swapper/008:33:290
305239960,0cyclictest0-21swapper/007:28:080
305409954,1cyclictest3533-21ssh10:56:173
305409954,1cyclictest18955-21cat07:50:173
305409954,1cyclictest11587-21ssh11:55:013
305409954,0cyclictest23376-21diskmemload09:20:163
305409953,1cyclictest6069-21/usr/sbin/munin07:25:163
305409953,1cyclictest20681-21tr07:55:153
305409953,1cyclictest1335-21apt-get07:15:133
305409952,1cyclictest240-21systemd-journal08:44:553
305409951,1cyclictest23291-21df08:00:153
305409950,1cyclictest11969-21/usr/sbin/munin07:35:213
305349955,0cyclictest61650irq/122-eno108:35:462
305249952,1cyclictest0-21swapper/110:26:591
305249952,0cyclictest0-21swapper/110:08:261
305249951,3cyclictest0-21swapper/111:55:201
305249951,2cyclictest0-21swapper/108:45:141
305249951,2cyclictest0-21swapper/108:30:111
305249951,2cyclictest0-21swapper/107:15:131
305249950,5cyclictest0-21swapper/111:13:371
305249950,5cyclictest0-21swapper/110:30:501
305249950,5cyclictest0-21swapper/109:08:061
305249950,5cyclictest0-21swapper/108:05:181
305249950,5cyclictest0-21swapper/107:42:521
305249950,4cyclictest0-21swapper/112:32:241
305249950,4cyclictest0-21swapper/111:42:301
305249950,4cyclictest0-21swapper/107:35:181
305249950,4cyclictest0-21swapper/107:25:161
305249950,3cyclictest0-21swapper/109:18:061
305249950,3cyclictest0-21swapper/109:10:111
305249950,2cyclictest0-21swapper/112:18:431
305249950,2cyclictest0-21swapper/111:50:191
305249950,2cyclictest0-21swapper/111:45:171
305249950,2cyclictest0-21swapper/110:58:121
305249950,2cyclictest0-21swapper/110:10:101
305249950,2cyclictest0-21swapper/109:25:191
305249950,2cyclictest0-21swapper/108:40:201
305249950,2cyclictest0-21swapper/107:20:121
305249950,1cyclictest0-21swapper/110:35:101
305249950,0cyclictest0-21swapper/110:40:111
305239950,5cyclictest0-21swapper/008:40:060
305239950,5cyclictest0-21swapper/007:50:410
305239950,5cyclictest0-21swapper/007:17:290
305239950,4cyclictest9588-21ntp_states07:30:180
305239950,4cyclictest32234-21/usr/sbin/munin08:20:190
305239950,4cyclictest21241-21/usr/sbin/munin09:05:130
305239950,4cyclictest20418-21/usr/sbin/munin07:55:170
305409943,1cyclictest35-21ksoftirqd/307:48:083
305409942,1cyclictest4655-21latency07:20:173
305409942,1cyclictest407-21tune2fs08:20:143
305409942,1cyclictest30714-21/usr/sbin/munin07:10:193
305409941,1cyclictest0-21swapper/309:05:233
305249943,1cyclictest180512sleep107:50:031
305249943,1cyclictest0-21swapper/108:25:381
305249941,2cyclictest15395-21chrt09:40:521
305249941,2cyclictest0-21swapper/107:55:141
305249941,1cyclictest0-21swapper/107:10:141
305249940,4cyclictest0-21swapper/108:50:031
305249940,4cyclictest0-21swapper/108:22:521
305249940,3cyclictest0-21swapper/109:00:141
305249940,2cyclictest0-21swapper/112:05:231
305249940,2cyclictest0-21swapper/111:05:201
305249940,2cyclictest0-21swapper/108:10:221
305249940,0cyclictest0-21swapper/108:38:511
305249930,1cyclictest0-21swapper/108:55:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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