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2026-07-28 - 16:49
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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 Tue Jul 28, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3163723760,4sleep30-21swapper/307:05:253
319892217150,21sleep20-21swapper/207:08:402
320672202150,40sleep10-21swapper/107:09:391
320762199160,24sleep00-21swapper/007:09:450
5252630,0sleep00-21swapper/007:10:140
231902550,0sleep00-21swapper/009:05:150
32209991210,1cyclictest28-21ksoftirqd/211:35:002
3219399120,12cyclictest0-21swapper/008:35:110
32209991110,1cyclictest28-21ksoftirqd/209:35:002
32193991110,1cyclictest9-21ksoftirqd/010:15:010
3222199109,1cyclictest35-21ksoftirqd/311:40:013
3220999109,1cyclictest28-21ksoftirqd/211:50:012
3220999108,1cyclictest28-21ksoftirqd/209:00:132
3219399109,1cyclictest9-21ksoftirqd/012:20:000
3219399109,1cyclictest9-21ksoftirqd/010:10:010
3219399109,1cyclictest9-21ksoftirqd/010:10:010
3219399102,4cyclictest30792-21perf11:35:000
322219998,1cyclictest35-21ksoftirqd/311:52:243
322219990,1cyclictest0-21swapper/312:20:123
322099999,0cyclictest28-21ksoftirqd/210:30:032
322099995,3cyclictest28-21ksoftirqd/209:37:112
322099990,9cyclictest0-21swapper/211:14:512
322039990,8cyclictest0-21swapper/110:05:181
322039990,8cyclictest0-21swapper/110:05:181
321939997,1cyclictest9-21ksoftirqd/007:30:110
321939991,4cyclictest1911-21perf11:40:010
321939990,7cyclictest12920-1kworker/u9:209:45:130
321939990,4cyclictest2366-21df12:25:140
322219988,0cyclictest35-21ksoftirqd/311:06:143
322219987,1cyclictest35-21ksoftirqd/310:21:083
322219987,1cyclictest35-21ksoftirqd/308:40:003
322219986,1cyclictest11301-21snmpd11:30:593
322219986,1cyclictest11301-21snmpd08:54:563
322219986,1cyclictest11301-21snmpd07:42:153
322219986,1cyclictest11301-21snmpd07:38:233
322219980,5cyclictest0-21swapper/308:00:113
322219980,1cyclictest0-21swapper/309:35:563
322099987,1cyclictest28-21ksoftirqd/210:25:002
322099986,1cyclictest61650irq/122-eno112:04:552
322099986,1cyclictest61650irq/122-eno109:55:122
322099986,1cyclictest61650irq/122-eno109:25:192
322099986,1cyclictest31856-21perf10:05:012
322099986,1cyclictest28-21ksoftirqd/211:20:002
322099986,1cyclictest28-21ksoftirqd/209:40:132
322099986,1cyclictest28-21ksoftirqd/208:20:002
322099986,1cyclictest11301-21snmpd10:27:402
322099986,1cyclictest11301-21snmpd09:09:292
322099986,1cyclictest11301-21snmpd07:43:572
322099985,2cyclictest24855-21ssh12:10:192
322099985,1cyclictest61650irq/122-eno108:59:592
322099985,1cyclictest28-21ksoftirqd/209:50:002
322099984,3cyclictest14582-21perf07:40:012
322099981,6cyclictest24841-21diskmemload10:36:122
322099981,6cyclictest2140-21munin-node10:46:322
322099981,5cyclictest21888-21apt-get07:55:122
322099980,4cyclictest32370-21apt-get09:20:122
322039981,1cyclictest0-21swapper/108:35:401
322039980,7cyclictest0-21swapper/109:30:131
321939987,1cyclictest9-21ksoftirqd/010:00:010
321939986,1cyclictest9-21ksoftirqd/011:20:000
321939983,1cyclictest24490-21/usr/sbin/munin10:40:160
321939982,1cyclictest24841-21diskmemload10:00:170
321939981,4cyclictest24841-21diskmemload10:15:220
321939981,4cyclictest24841-21diskmemload09:33:000
321939981,1cyclictest240-21systemd-journal12:05:000
321939980,7cyclictest25728-21ssh12:11:160
321939980,7cyclictest13366-21ssh10:24:300
321939980,7cyclictest11301-21snmpd11:08:130
321939980,4cyclictest27277-21kworker/0:109:55:000
321939980,2cyclictest0-21swapper/008:30:110
13659280,0sleep00-21swapper/009:38:240
8026270,1sleep10-21swapper/111:00:401
322219976,1cyclictest11301-21snmpd10:58:573
322219976,1cyclictest11301-21snmpd10:58:573
322219976,1cyclictest11301-21snmpd10:52:093
322219976,1cyclictest11301-21snmpd09:01:343
322219975,1cyclictest35-21ksoftirqd/312:05:313
322219975,1cyclictest35-21ksoftirqd/307:20:003
322219975,1cyclictest27431-21ssh10:44:073
322219975,1cyclictest11301-21snmpd08:16:253
322219975,1cyclictest11017-21ssh12:35:493
322219973,1cyclictest25188-21tail09:10:133
322219972,2cyclictest30213-21ssh09:15:203
322219971,5cyclictest24841-21diskmemload09:55:193
322219971,5cyclictest2140-21munin-node11:19:453
322219970,6cyclictest24841-21diskmemload12:00:213
322219970,6cyclictest24295-21ssh09:53:383
322219970,5cyclictest0-21swapper/311:44:193
322219970,4cyclictest0-21swapper/309:41:053
322219970,4cyclictest0-21swapper/308:45:123
322219970,3cyclictest0-21swapper/309:31:373
322219970,1cyclictest2364-21/usr/sbin/munin12:25:143
322099976,1cyclictest61650irq/122-eno111:05:012
322099976,1cyclictest61650irq/122-eno110:10:112
322099976,1cyclictest61650irq/122-eno109:46:162
322099976,1cyclictest61650irq/122-eno109:15:122
322099976,1cyclictest61650irq/122-eno108:05:002
322099976,1cyclictest61650irq/122-eno107:54:522
322099976,1cyclictest61650irq/122-eno107:30:122
322099976,1cyclictest28-21ksoftirqd/212:15:132
322099976,1cyclictest28-21ksoftirqd/211:55:152
322099976,1cyclictest0-21swapper/212:25:172
322099975,1cyclictest61650irq/122-eno112:30:162
322099975,1cyclictest61650irq/122-eno111:35:122
322099975,1cyclictest61650irq/122-eno110:17:582
322099975,1cyclictest28-21ksoftirqd/211:40:152
322099975,1cyclictest28-21ksoftirqd/210:40:152
322099975,1cyclictest28-21ksoftirqd/208:25:002
322099975,1cyclictest28-21ksoftirqd/207:15:012
322099975,1cyclictest11631-21ssh12:37:492
322099972,3cyclictest25095-21apt-get09:10:112
322099971,2cyclictest5660-21apt-get11:45:112
322099970,1cyclictest0-21swapper/211:05:102
322039976,1cyclictest0-21swapper/112:20:451
322039971,6cyclictest0-21swapper/109:05:261
322039971,4cyclictest0-21swapper/108:45:001
322039970,6cyclictest0-21swapper/111:41:531
322039970,4cyclictest0-21swapper/112:25:061
322039970,4cyclictest0-21swapper/112:18:381
322039970,4cyclictest0-21swapper/109:26:301
322039970,0cyclictest0-21swapper/111:10:531
321939976,1cyclictest9-21ksoftirqd/010:34:590
321939976,1cyclictest29443-1kworker/u9:009:15:250
321939976,1cyclictest25067-1kworker/u9:209:26:390
321939976,1cyclictest25067-1kworker/u9:209:20:040
321939975,1cyclictest25766-21ssh11:25:580
321939975,1cyclictest1511-21sshd12:24:520
321939975,1cyclictest11301-21snmpd07:54:520
321939972,3cyclictest24841-21diskmemload10:26:490
321939972,1cyclictest24841-21diskmemload11:01:330
321939971,1cyclictest24841-21diskmemload12:31:340
321939970,6cyclictest725-21cat10:50:220
321939970,6cyclictest26955-21ssh09:10:520
321939970,6cyclictest0-21swapper/011:50:100
321939970,6cyclictest0-21swapper/010:46:090
321939970,6cyclictest0-21swapper/010:35:190
321939970,1cyclictest8682-21ssh11:49:200
321939970,1cyclictest2610-21apt-get10:55:110
321939970,1cyclictest2610-21apt-get10:55:100
321939970,1cyclictest24841-21diskmemload12:35:170
321939970,1cyclictest18287-21grep08:55:120
321939970,1cyclictest16683-21ssh09:41:430
321939970,1cyclictest16087-21ssh11:13:570
321939970,1cyclictest0-21swapper/007:25:140
322219965,1cyclictest7507-21ssh11:45:343
322219965,1cyclictest5637-21ssh09:25:373
322219965,1cyclictest23360-21ssh10:37:233
322219965,1cyclictest16173-21ssh10:27:073
322219965,1cyclictest14096-21ntpq11:55:173
322219965,1cyclictest11301-21snmpd08:43:563
322219965,1cyclictest11301-21snmpd08:23:483
322219965,0cyclictest24841-21diskmemload10:16:073
322219964,1cyclictest7068-21cat08:30:153
322219964,1cyclictest6674-21diskstats11:00:133
322219964,1cyclictest24841-21diskmemload10:05:093
322219964,1cyclictest24841-21diskmemload10:05:083
322219964,1cyclictest11301-21snmpd07:53:333
322219964,1cyclictest11301-21snmpd07:46:253
322219962,3cyclictest4554-21/usr/sbin/munin08:25:153
322219962,2cyclictest240-21systemd-journal12:19:103
322219962,2cyclictest240-21systemd-journal10:00:003
322219960,6cyclictest0-21swapper/312:12:343
322219960,4cyclictest0-21swapper/312:30:163
322219960,4cyclictest0-21swapper/310:30:173
322219960,4cyclictest0-21swapper/310:10:153
322219960,4cyclictest0-21swapper/309:20:293
322219960,3cyclictest0-21swapper/311:12:553
322219960,3cyclictest0-21swapper/310:45:113
322219960,2cyclictest0-21swapper/311:26:343
322219960,1cyclictest20296-21head11:20:113
322099966,0cyclictest61650irq/122-eno112:20:222
322099966,0cyclictest61650irq/122-eno111:20:142
322099966,0cyclictest61650irq/122-eno110:05:522
322099966,0cyclictest61650irq/122-eno110:05:522
322099966,0cyclictest61650irq/122-eno108:51:092
322099966,0cyclictest61650irq/122-eno108:48:402
322099966,0cyclictest61650irq/122-eno108:25:442
322099966,0cyclictest61650irq/122-eno107:45:112
322099966,0cyclictest61650irq/122-eno107:25:012
322099966,0cyclictest0-21swapper/211:25:042
322099965,1cyclictest28-21ksoftirqd/210:50:142
322099965,1cyclictest28-21ksoftirqd/208:45:002
322099964,1cyclictest61650irq/122-eno112:05:112
322099964,1cyclictest61650irq/122-eno107:10:192
322099960,6cyclictest0-21swapper/207:22:452
322099960,5cyclictest0-21swapper/208:36:442
322099960,5cyclictest0-21swapper/208:00:152
322099960,4cyclictest0-21swapper/210:55:112
322099960,4cyclictest0-21swapper/210:55:102
322099960,3cyclictest30064-21interrupts08:10:152
322039965,1cyclictest0-21swapper/107:26:541
322039963,0cyclictest0-21swapper/107:16:301
322039961,3cyclictest0-21swapper/109:59:101
322039960,6cyclictest0-21swapper/112:05:241
322039960,6cyclictest0-21swapper/110:40:481
322039960,6cyclictest0-21swapper/110:32:151
322039960,6cyclictest0-21swapper/110:28:351
322039960,5cyclictest0-21swapper/111:06:421
322039960,5cyclictest0-21swapper/107:38:421
322039960,4cyclictest0-21swapper/111:52:341
322039960,4cyclictest0-21swapper/109:51:551
322039960,4cyclictest0-21swapper/107:50:161
322039960,3cyclictest0-21swapper/109:18:201
322039960,3cyclictest0-21swapper/108:05:101
322039960,2cyclictest0-21swapper/110:57:301
322039960,2cyclictest0-21swapper/110:57:301
322039960,1cyclictest0-21swapper/110:50:171
322039960,1cyclictest0-21swapper/110:20:101
322039960,1cyclictest0-21swapper/108:56:561
322039960,1cyclictest0-21swapper/107:57:461
321939962,2cyclictest798-21head08:15:230
321939961,4cyclictest561-21nscd07:45:110
321939960,6cyclictest0-21swapper/011:20:060
321939960,6cyclictest0-21swapper/008:45:080
321939960,6cyclictest0-21swapper/008:40:050
321939960,6cyclictest0-21swapper/008:25:030
321939960,6cyclictest0-21swapper/007:39:540
321939960,5cyclictest2109-21ssh11:40:050
321939960,5cyclictest20160-21apt-get12:05:120
321939960,2cyclictest12901-21apt-get11:55:110
321939960,1cyclictest0-21swapper/007:40:130
321939960,0cyclictest0-21swapper/009:00:130
321939960,0cyclictest0-21swapper/008:50:130
321939960,0cyclictest0-21swapper/008:05:120
321939960,0cyclictest0-21swapper/008:00:100
321939960,0cyclictest0-21swapper/007:18:070
322219954,1cyclictest11301-21snmpd07:21:303
322219954,1cyclictest11301-21snmpd07:12:003
322219953,1cyclictest27629-21sed08:05:153
322219953,1cyclictest23015-21ntp_kernel_err07:55:183
322219953,1cyclictest11301-21snmpd09:05:473
322219953,1cyclictest10095-21apt-get07:30:123
322219951,1cyclictest0-21swapper/308:55:153
322219950,5cyclictest0-21swapper/308:11:043
322219950,3cyclictest0-21swapper/309:45:033
322099955,0cyclictest61650irq/122-eno108:30:022
322039955,0cyclictest0-21swapper/112:31:091
322039953,1cyclictest0-21swapper/111:45:161
322039952,2cyclictest0-21swapper/111:32:141
322039952,1cyclictest0-21swapper/111:20:511
322039952,0cyclictest0-21swapper/112:10:201
322039951,3cyclictest0-21swapper/112:36:021
322039951,2cyclictest0-21swapper/110:10:121
322039951,2cyclictest0-21swapper/109:35:211
322039951,1cyclictest0-21swapper/111:35:171
322039950,5cyclictest0-21swapper/109:40:381
322039950,5cyclictest0-21swapper/108:11:061
322039950,4cyclictest0-21swapper/111:15:181
322039950,4cyclictest0-21swapper/109:46:241
322039950,3cyclictest0-21swapper/109:20:181
322039950,3cyclictest0-21swapper/108:20:131
322039950,1cyclictest0-21swapper/110:45:111
322039950,1cyclictest0-21swapper/110:18:311
322039950,1cyclictest0-21swapper/109:11:101
322039950,0cyclictest0-21swapper/108:50:181
321939953,1cyclictest21885-21/usr/sbin/munin07:55:120
321939950,0cyclictest0-21swapper/008:20:010
321939950,0cyclictest0-21swapper/008:10:200
321939950,0cyclictest0-21swapper/007:20:120
322219944,0cyclictest0-21swapper/307:25:203
322039943,1cyclictest58602sleep108:28:561
322039943,1cyclictest0-21swapper/107:30:181
322039941,2cyclictest0-21swapper/110:00:071
322039941,1cyclictest0-21swapper/107:45:111
322039940,4cyclictest0-21swapper/107:21:301
322039940,4cyclictest0-21swapper/107:10:391
322039940,3cyclictest0-21swapper/112:01:271
322039940,3cyclictest0-21swapper/111:55:151
322039940,3cyclictest0-21swapper/111:25:201
322039940,3cyclictest0-21swapper/108:45:211
322039940,3cyclictest0-21swapper/107:40:191
322039940,1cyclictest0-21swapper/110:35:181
322039940,1cyclictest0-21swapper/109:00:201
322039940,0cyclictest0-21swapper/108:30:191
322039940,0cyclictest0-21swapper/108:02:271
322039932,0cyclictest0-21swapper/108:15:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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