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2026-04-06 - 01:28
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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 Apr 06, 2026 00:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2393323990,9sleep228-21ksoftirqd/219:05:162
233082220158,24sleep10-21swapper/119:05:081
250732218162,24sleep00-21swapper/019:05:300
250982200161,25sleep30-21swapper/319:05:503
314172530,0sleep30-21swapper/319:20:133
48652330,1sleep24867-21tune2fs20:40:122
327672140,1sleep232766-21grep00:15:162
2549699124,4cyclictest14321-21latency_hist00:35:000
25496991210,1cyclictest9-21ksoftirqd/000:10:010
2552099119,1cyclictest28-21ksoftirqd/219:55:132
25520991110,1cyclictest28-21ksoftirqd/221:15:152
2551299110,10cyclictest0-21swapper/100:35:401
2549699119,1cyclictest9-21ksoftirqd/019:30:000
74552100,0sleep018343-21diskmemload23:42:580
2552099109,1cyclictest28-21ksoftirqd/222:50:132
2552099108,1cyclictest28-21ksoftirqd/223:20:122
2552099108,1cyclictest28-21ksoftirqd/221:45:202
2552099108,1cyclictest28-21ksoftirqd/220:50:152
2552099108,1cyclictest28-21ksoftirqd/219:15:012
2551299100,4cyclictest0-21swapper/121:20:121
2549699102,4cyclictest27909-21cat19:15:010
28057290,0sleep30-21swapper/323:27:043
255259990,6cyclictest358-21apt-get22:10:113
255259990,5cyclictest18343-21diskmemload21:20:203
255259990,4cyclictest0-21swapper/300:30:113
255209998,1cyclictest28-21ksoftirqd/222:15:182
255209998,1cyclictest28-21ksoftirqd/221:30:182
255209997,1cyclictest28-21ksoftirqd/223:25:152
255209997,1cyclictest28-21ksoftirqd/222:45:122
255209997,1cyclictest28-21ksoftirqd/222:25:112
255209997,1cyclictest28-21ksoftirqd/222:10:262
255209997,1cyclictest28-21ksoftirqd/219:35:002
255209991,6cyclictest7959-21kworker/2:220:23:172
255209990,7cyclictest7959-21kworker/2:221:01:592
254969994,2cyclictest240-21systemd-journal21:35:150
254969993,3cyclictest240-21systemd-journal00:19:590
255259986,1cyclictest35-21ksoftirqd/319:50:003
255259980,4cyclictest0-21swapper/322:18:293
255259980,3cyclictest0-21swapper/322:04:493
255259980,3cyclictest0-21swapper/300:01:533
255209988,0cyclictest0-21swapper/200:35:432
255209987,1cyclictest28-21ksoftirqd/223:55:132
255209987,1cyclictest28-21ksoftirqd/223:45:152
255209987,1cyclictest28-21ksoftirqd/223:40:102
255209987,1cyclictest28-21ksoftirqd/223:30:152
255209987,1cyclictest28-21ksoftirqd/223:15:152
255209987,1cyclictest28-21ksoftirqd/200:30:152
255209987,1cyclictest28-21ksoftirqd/200:25:002
255209986,1cyclictest61650irq/122-eno121:10:012
255209986,1cyclictest61650irq/122-eno100:10:162
255209986,1cyclictest28-21ksoftirqd/222:55:172
255209986,1cyclictest28-21ksoftirqd/221:20:132
255209986,1cyclictest28-21ksoftirqd/221:10:142
255209986,1cyclictest28-21ksoftirqd/220:25:142
255209986,1cyclictest28-21ksoftirqd/220:15:152
255209986,1cyclictest28-21ksoftirqd/200:25:152
255209986,1cyclictest0-21swapper/222:35:132
255209980,5cyclictest23205-21sh00:04:122
254969988,0cyclictest9-21ksoftirqd/021:55:010
254969982,5cyclictest18343-21diskmemload23:25:160
254969981,4cyclictest0-21swapper/020:48:280
254969980,6cyclictest8350-21ssh00:25:190
254969980,4cyclictest0-21swapper/019:30:110
2301280,1sleep10-21swapper/122:54:541
12417280,0sleep30-21swapper/321:42:153
30728270,0sleep30-21swapper/319:18:223
255259976,1cyclictest35-21ksoftirqd/319:10:363
255259975,1cyclictest9433-21cat23:45:153
255259975,1cyclictest8753-21ssh23:01:383
255259975,1cyclictest35-21ksoftirqd/323:40:183
255259975,0cyclictest18343-21diskmemload22:09:213
255259974,1cyclictest240-21systemd-journal19:34:593
255259973,2cyclictest18343-21diskmemload23:21:393
255259972,4cyclictest5762-21apt-get19:35:113
255259972,3cyclictest240-21systemd-journal22:59:553
255259971,5cyclictest27217-21apt-get20:20:103
255259970,3cyclictest0-21swapper/322:33:473
255259970,3cyclictest0-21swapper/321:49:413
255259970,2cyclictest0-21swapper/300:36:013
255209977,0cyclictest28-21ksoftirqd/223:00:172
255209977,0cyclictest0-21swapper/220:45:442
255209976,1cyclictest61650irq/122-eno122:30:122
255209976,1cyclictest28-21ksoftirqd/222:40:112
255209976,1cyclictest28-21ksoftirqd/222:20:132
255209976,1cyclictest28-21ksoftirqd/222:00:142
255209976,1cyclictest28-21ksoftirqd/221:35:122
255209976,1cyclictest28-21ksoftirqd/221:25:122
255209976,1cyclictest28-21ksoftirqd/220:30:142
255209976,1cyclictest28-21ksoftirqd/219:40:172
255209976,1cyclictest28-21ksoftirqd/219:25:142
255209976,1cyclictest28-21ksoftirqd/219:20:142
255209975,1cyclictest61650irq/122-eno123:10:142
255209975,1cyclictest61650irq/122-eno121:50:122
255209975,1cyclictest61650irq/122-eno119:35:172
255209975,1cyclictest28-21ksoftirqd/200:05:122
255209974,1cyclictest240-21systemd-journal23:55:002
255209971,2cyclictest240-21systemd-journal20:15:012
255129977,0cyclictest21-21ksoftirqd/122:18:091
255129973,4cyclictest56-21kworker/1:123:59:421
255129973,0cyclictest0-21swapper/122:25:181
255129972,5cyclictest56-21kworker/1:100:33:151
255129970,7cyclictest0-21swapper/123:21:081
255129970,7cyclictest0-21swapper/123:13:401
255129970,6cyclictest0-21swapper/122:10:151
255129970,4cyclictest0-21swapper/122:45:101
255129970,4cyclictest0-21swapper/121:50:231
255129970,4cyclictest0-21swapper/121:39:211
255129970,4cyclictest0-21swapper/100:25:171
255129970,2cyclictest0-21swapper/123:30:111
255129970,1cyclictest0-21swapper/100:15:111
254969976,1cyclictest9-21ksoftirqd/020:29:590
254969976,1cyclictest19019-21ssh23:58:140
254969976,1cyclictest10466-1kworker/u9:223:46:500
254969975,1cyclictest995-21ssh22:51:240
254969975,1cyclictest30877-21latency_hist19:20:010
254969975,1cyclictest29044-21sshd22:45:280
254969975,1cyclictest24345-21kernelversion22:40:160
254969975,1cyclictest18882-21irqstats23:15:160
254969975,1cyclictest18699-21ssh22:33:300
254969973,0cyclictest0-21swapper/020:10:180
254969972,2cyclictest240-21systemd-journal20:25:010
254969971,6cyclictest22735-21ssh21:55:170
254969971,5cyclictest27664-21ssh00:10:140
254969970,7cyclictest30420-21grep21:25:000
254969970,6cyclictest544-21ssh21:26:430
254969970,6cyclictest30155-21perl23:30:150
254969970,6cyclictest27854-21ssh22:02:420
254969970,6cyclictest20377-21smartctl22:35:150
254969970,6cyclictest18569-1kworker/u9:121:10:190
254969970,6cyclictest18343-21diskmemload23:20:160
254969970,6cyclictest14999-21ssh23:52:390
254969970,6cyclictest14390-21/usr/sbin/munin19:50:190
254969970,6cyclictest11361-21smartctl21:40:190
254969970,6cyclictest0-21swapper/022:10:100
254969970,4cyclictest9138-21/usr/sbin/munin20:50:200
254969970,1cyclictest6808-21ssh22:17:310
254969970,1cyclictest5019-21ssh21:32:580
254969970,1cyclictest2604-21ssh22:55:040
254969970,1cyclictest23455-21ssh21:15:170
254969970,1cyclictest18343-21diskmemload21:46:500
254969970,1cyclictest18343-21diskmemload00:21:240
254969970,1cyclictest15989-21ssh23:10:310
254969970,1cyclictest14164-21ssh22:26:400
254969970,1cyclictest12730-21ssh23:07:020
254969970,1cyclictest12730-21ssh23:07:010
254969970,1cyclictest11527-21telnet20:55:110
254969970,1cyclictest0-21swapper/023:35:130
254969970,1cyclictest0-21swapper/000:00:120
254969970,0cyclictest7231-21ssh23:00:140
255259966,0cyclictest18343-21diskmemload22:45:323
255259965,1cyclictest4175-21ssh21:30:513
255259965,1cyclictest32364-21ssh23:33:213
255259965,1cyclictest26173-21ssh22:42:593
255259965,1cyclictest26064-21ssh00:06:333
255259965,1cyclictest24783-21ssh21:59:443
255259965,1cyclictest21758-21ssh22:36:283
255259965,1cyclictest18731-21ntpq21:50:163
255259965,0cyclictest18343-21diskmemload22:21:523
255259964,1cyclictest8756-21ssh00:25:303
255259964,1cyclictest668-21ssh22:50:343
255259964,1cyclictest16676-21diskstats23:55:143
255259964,1cyclictest12762-21ssh23:07:063
255259964,1cyclictest12762-21ssh23:07:063
255259964,0cyclictest18343-21diskmemload23:12:303
255259963,1cyclictest4721-21/usr/sbin/munin00:20:193
255259963,1cyclictest240-21systemd-journal20:41:143
255259963,1cyclictest18343-21diskmemload23:16:133
255259962,2cyclictest0-21swapper/323:50:153
255259962,2cyclictest0-21swapper/300:10:143
255259961,4cyclictest22549-21apt-get21:15:133
255259961,3cyclictest2005-21ntp_kernel_pll_23:35:173
255259961,3cyclictest18343-21diskmemload21:10:163
255259961,1cyclictest0-21swapper/300:15:183
255259960,3cyclictest0-21swapper/322:25:413
255259960,2cyclictest0-21swapper/321:36:193
255259960,1cyclictest0-21swapper/321:26:463
255209966,0cyclictest61650irq/122-eno119:45:122
255209965,1cyclictest61650irq/122-eno121:55:092
255209965,1cyclictest28-21ksoftirqd/223:35:142
255209965,1cyclictest28-21ksoftirqd/223:05:112
255209965,1cyclictest28-21ksoftirqd/223:05:102
255209965,1cyclictest28-21ksoftirqd/220:00:142
255209965,0cyclictest61650irq/122-eno122:05:142
255209961,3cyclictest12940-21sh19:50:112
255209961,3cyclictest0-21swapper/221:41:272
255209960,6cyclictest0-21swapper/220:35:222
255129962,0cyclictest56-21kworker/1:122:30:061
255129960,6cyclictest0-21swapper/123:48:271
255129960,6cyclictest0-21swapper/121:27:541
255129960,3cyclictest0-21swapper/123:05:131
255129960,3cyclictest0-21swapper/123:05:121
255129960,0cyclictest0-21swapper/121:18:051
254969966,0cyclictest0-21swapper/020:15:180
254969965,1cyclictest27596-1kworker/u9:022:06:460
254969964,1cyclictest2829-21wc20:35:180
254969962,2cyclictest240-21systemd-journal19:35:000
254969960,6cyclictest0-21swapper/021:07:270
254969960,5cyclictest0-21swapper/019:40:170
254969960,2cyclictest0-21swapper/020:30:110
254969960,2cyclictest0-21swapper/019:45:110
254969960,1cyclictest6822-1kworker/u9:222:21:370
254969960,0cyclictest0-21swapper/000:35:020
12328260,0sleep10-21swapper/121:42:011
26507250,0sleep10-21swapper/100:07:451
255259955,0cyclictest0-21swapper/320:35:153
255259954,1cyclictest9012-21cat19:40:143
255259953,1cyclictest29573-21apt-get20:25:123
255259953,1cyclictest16225-21apt-get21:05:113
255259951,2cyclictest0-21swapper/319:25:123
255259951,1cyclictest0-21swapper/320:15:123
255259950,5cyclictest0-21swapper/320:56:003
255259950,2cyclictest0-21swapper/320:45:173
255259950,1cyclictest31925-21apt-get20:30:103
255259950,1cyclictest0-21swapper/320:00:113
255259950,0cyclictest0-21swapper/321:00:133
255259950,0cyclictest0-21swapper/319:55:333
255209954,1cyclictest61650irq/122-eno120:05:132
255209954,1cyclictest28-21ksoftirqd/220:55:142
255209953,1cyclictest0-21swapper/219:15:012
255129955,0cyclictest21-21ksoftirqd/123:15:111
255129955,0cyclictest0-21swapper/123:27:141
255129955,0cyclictest0-21swapper/122:56:031
255129955,0cyclictest0-21swapper/122:04:221
255129955,0cyclictest0-21swapper/121:11:391
255129955,0cyclictest0-21swapper/119:31:321
255129955,0cyclictest0-21swapper/100:24:341
255129953,1cyclictest25627-21chrt22:41:311
255129950,5cyclictest0-21swapper/123:50:141
255129950,5cyclictest0-21swapper/122:35:191
255129950,5cyclictest0-21swapper/121:55:171
255129950,5cyclictest0-21swapper/120:26:571
255129950,5cyclictest0-21swapper/119:58:191
255129950,5cyclictest0-21swapper/119:15:151
255129950,5cyclictest0-21swapper/119:11:011
255129950,4cyclictest9497-21chrt20:50:141
255129950,3cyclictest0-21swapper/122:05:181
255129950,3cyclictest0-21swapper/121:30:201
255129950,3cyclictest0-21swapper/120:15:211
255129950,2cyclictest0-21swapper/123:00:091
255129950,2cyclictest0-21swapper/119:50:131
255129950,2cyclictest0-21swapper/100:01:181
255129950,0cyclictest0-21swapper/100:11:341
254969954,1cyclictest4244-21aten_r1power_cu20:40:110
254969954,1cyclictest17335-21apt-get20:00:000
254969950,5cyclictest0-21swapper/020:08:010
254969950,4cyclictest17772-21/usr/sbin/munin20:00:120
254969950,4cyclictest0-21swapper/019:20:110
254969950,1cyclictest0-21swapper/021:00:170
255259942,1cyclictest9831-21tune2fs20:50:143
255259942,1cyclictest22976-21expr20:10:123
255259942,1cyclictest20440-21/usr/sbin/munin20:05:133
255259942,1cyclictest13760-21kernelversion19:50:143
255129944,0cyclictest0-21swapper/120:57:211
255129944,0cyclictest0-21swapper/120:46:011
255129942,1cyclictest111rcu_preempt19:35:131
255129941,1cyclictest0-21swapper/120:10:111
255129940,4cyclictest0-21swapper/123:40:151
255129940,4cyclictest0-21swapper/119:42:101
255129940,3cyclictest0-21swapper/121:45:191
255129940,3cyclictest0-21swapper/121:05:141
255129940,3cyclictest0-21swapper/120:30:181
255129940,3cyclictest0-21swapper/120:20:101
255129940,2cyclictest0-21swapper/122:20:151
255129940,2cyclictest0-21swapper/120:35:121
255129940,1cyclictest0-21swapper/121:00:131
255129940,1cyclictest0-21swapper/120:00:011
255129940,1cyclictest0-21swapper/119:30:011
255129940,0cyclictest0-21swapper/123:35:111
255129940,0cyclictest0-21swapper/120:40:181
255129931,1cyclictest111rcu_preempt20:05:111
255129930,1cyclictest0-21swapper/119:20:131
255129930,0cyclictest0-21swapper/119:45:161
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