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2026-06-08 - 08:52
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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 Mon Jun 08, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
240482214152,21sleep30-21swapper/319:09:173
238712200163,24sleep00-21swapper/019:06:560
238092200162,24sleep20-21swapper/219:06:092
219982199160,26sleep10-21swapper/119:05:091
61962700,2sleep2271rcuc/220:45:152
281932690,0sleep10-21swapper/119:15:141
106182650,0sleep20-21swapper/223:10:212
227142610,0sleep00-21swapper/023:26:520
78662150,0sleep30-21swapper/323:50:193
31322140,0sleep20-21swapper/220:40:132
24194991311,1cyclictest28-21ksoftirqd/223:35:102
24194991210,1cyclictest28-21ksoftirqd/220:34:592
2419499120,0cyclictest0-21swapper/222:11:012
24185991210,1cyclictest9-21ksoftirqd/019:50:000
2419499119,1cyclictest28-21ksoftirqd/223:50:162
2419499119,1cyclictest28-21ksoftirqd/223:05:002
2419499119,1cyclictest28-21ksoftirqd/221:10:142
2419499119,1cyclictest28-21ksoftirqd/219:35:002
24194991110,1cyclictest28-21ksoftirqd/223:45:212
24194991110,1cyclictest28-21ksoftirqd/222:25:572
2419499109,1cyclictest28-21ksoftirqd/222:35:132
2419499109,1cyclictest28-21ksoftirqd/221:33:492
2419499108,1cyclictest28-21ksoftirqd/222:00:202
2419499108,1cyclictest28-21ksoftirqd/200:25:152
2418599102,4cyclictest13906-21perf19:55:000
28764290,0sleep20-21swapper/222:08:132
241949998,1cyclictest28-21ksoftirqd/221:55:162
241949998,1cyclictest28-21ksoftirqd/221:53:202
241949998,1cyclictest28-21ksoftirqd/200:10:212
241949998,0cyclictest28-21ksoftirqd/222:50:172
241949998,0cyclictest28-21ksoftirqd/200:05:132
241949997,1cyclictest28-21ksoftirqd/223:05:142
241949997,1cyclictest28-21ksoftirqd/222:45:142
241949997,1cyclictest28-21ksoftirqd/219:30:002
241949997,1cyclictest28-21ksoftirqd/200:15:152
241949990,9cyclictest0-21swapper/221:29:582
241859999,0cyclictest9-21ksoftirqd/022:16:460
241859998,0cyclictest9-21ksoftirqd/022:50:420
241859993,5cyclictest10002-21sed20:55:000
241999986,1cyclictest1029-21snmpd23:29:053
241999980,4cyclictest1-21systemd19:15:003
241949987,1cyclictest28-21ksoftirqd/222:40:172
241949987,1cyclictest28-21ksoftirqd/222:24:592
241949987,1cyclictest28-21ksoftirqd/221:45:162
241949987,1cyclictest28-21ksoftirqd/220:50:132
241949987,1cyclictest28-21ksoftirqd/200:35:112
241949987,1cyclictest28-21ksoftirqd/200:20:182
241949986,1cyclictest61650irq/122-eno123:31:432
241949986,1cyclictest61650irq/122-eno123:20:202
241949986,1cyclictest28-21ksoftirqd/223:25:112
241949986,1cyclictest28-21ksoftirqd/222:55:192
241949986,1cyclictest28-21ksoftirqd/221:35:152
241949986,1cyclictest28-21ksoftirqd/219:55:002
241949986,1cyclictest28-21ksoftirqd/219:35:162
241949986,1cyclictest1029-21snmpd23:55:132
241949986,1cyclictest1029-21snmpd23:17:482
241949981,6cyclictest61650irq/122-eno122:15:372
241899980,6cyclictest0-21swapper/119:35:131
241899980,5cyclictest0-21swapper/100:37:441
241859986,1cyclictest570-21nscd22:35:110
241859986,1cyclictest1029-21snmpd23:56:010
241859986,1cyclictest1029-21snmpd22:14:430
241859986,1cyclictest1029-21snmpd20:46:100
241859986,1cyclictest1029-21snmpd00:29:460
241859982,4cyclictest20881-21apt-get21:15:120
241859980,7cyclictest3626-21ssh23:01:260
241859980,7cyclictest30375-21cron20:29:590
241859980,7cyclictest28822-21ssh22:08:230
241859980,7cyclictest19500-21chrt23:23:120
241859980,5cyclictest7492-21kworker/u8:000:35:410
241859980,5cyclictest23492-21fschecks_count22:45:150
241859980,5cyclictest0-21swapper/021:25:150
14936280,1sleep10-21swapper/122:33:591
241999976,1cyclictest3564-21cat23:45:163
241999976,1cyclictest35-21ksoftirqd/320:20:003
241999976,1cyclictest1029-21snmpd00:09:403
241999975,1cyclictest1029-21snmpd23:35:273
241999975,1cyclictest1029-21snmpd22:45:143
241999975,1cyclictest1029-21snmpd20:02:233
241999975,1cyclictest1029-21snmpd19:51:393
241999975,1cyclictest1029-21snmpd19:29:143
241999974,1cyclictest13650irq/124-ahci[0019:34:553
241999973,1cyclictest240-21systemd-journal21:19:553
241999972,4cyclictest19268-21apt-get22:40:123
241999972,3cyclictest17036-21diskmemload23:12:403
241999972,3cyclictest17036-21diskmemload21:30:173
241999972,1cyclictest17036-21diskmemload00:35:183
241999971,4cyclictest17036-21diskmemload22:30:173
241999970,6cyclictest17036-21diskmemload23:30:273
241999970,6cyclictest17036-21diskmemload22:25:063
241999970,4cyclictest4302-21expr21:35:143
241999970,4cyclictest0-21swapper/321:13:213
241999970,3cyclictest6803-21gunzip20:45:183
241999970,3cyclictest14540-21awk21:50:013
241999970,3cyclictest0-21swapper/300:21:513
241999970,2cyclictest31946-21munin-run19:25:013
241999970,2cyclictest0-21swapper/322:54:483
241949976,1cyclictest61650irq/122-eno121:43:332
241949976,1cyclictest61650irq/122-eno100:02:332
241949976,1cyclictest28-21ksoftirqd/223:40:142
241949976,1cyclictest28-21ksoftirqd/222:32:442
241949976,1cyclictest28-21ksoftirqd/221:20:012
241949976,1cyclictest28-21ksoftirqd/220:20:152
241949976,1cyclictest28-21ksoftirqd/220:05:142
241949976,1cyclictest28-21ksoftirqd/219:10:142
241949975,1cyclictest61650irq/122-eno119:40:152
241949975,1cyclictest28-21ksoftirqd/221:20:192
241949975,1cyclictest28-21ksoftirqd/220:10:162
241949975,1cyclictest28-21ksoftirqd/219:15:152
241949970,4cyclictest0-21swapper/220:35:002
241949970,3cyclictest0-21swapper/220:00:132
241949970,1cyclictest0-21swapper/220:57:022
241949970,1cyclictest0-21swapper/220:25:062
241899971,6cyclictest0-21swapper/120:24:181
241899971,1cyclictest0-21swapper/123:44:421
241899971,1cyclictest0-21swapper/120:28:251
241899971,1cyclictest0-21swapper/120:09:391
241899970,1cyclictest0-21swapper/121:08:111
241859976,1cyclictest32693-21ssh21:30:130
241859976,1cyclictest26921-21ssh00:15:370
241859975,1cyclictest6500-21ssh22:20:410
241859975,1cyclictest21907-21ssh22:42:520
241859975,1cyclictest1029-21snmpd20:01:300
241859975,1cyclictest1029-21snmpd19:41:590
241859973,2cyclictest548-21systemd-logind23:50:190
241859973,2cyclictest548-21systemd-logind21:20:190
241859971,3cyclictest23281-21cron20:15:000
241859970,6cyclictest9200-21irqstats22:25:160
241859970,6cyclictest5599-21vmstat21:35:230
241859970,6cyclictest24279-21ssh22:00:450
241859970,6cyclictest24003-1kworker/u9:023:35:210
241859970,6cyclictest18311-1kworker/u9:022:55:140
241859970,6cyclictest17036-21diskmemload23:45:240
241859970,6cyclictest17036-21diskmemload23:40:460
241859970,6cyclictest17036-21diskmemload00:05:120
241859970,6cyclictest0-21swapper/000:20:130
241859970,6cyclictest0-21swapper/000:00:430
241859970,5cyclictest24053-21apt-get23:30:110
241859970,1cyclictest8216-21ssh23:08:310
241859970,1cyclictest20486-21ssh21:56:010
241859970,1cyclictest16160-21ps21:50:180
241859970,1cyclictest1552-21taskset19:26:110
241859970,1cyclictest13115-21cpuspeed_turbos23:15:120
241859970,1cyclictest12990-21ssh21:45:310
241859970,1cyclictest11254-21ssh23:11:400
241859970,1cyclictest10875-1kworker/u9:022:30:320
241859970,1cyclictest0-21swapper/021:12:210
2871260,1sleep10-21swapper/121:33:161
24682260,3sleep10-21swapper/122:01:551
241999965,1cyclictest866-21ssh23:40:353
241999965,1cyclictest5783-21ssh00:31:333
241999965,1cyclictest4563-21ssh22:20:063
241999965,1cyclictest4327-21sensors20:40:213
241999965,1cyclictest23316-21ssh00:11:263
241999965,1cyclictest20734-21ssh21:56:463
241999965,1cyclictest17049-21perf21:10:013
241999965,1cyclictest16715-21ssh21:50:423
241999965,1cyclictest12535-21ssh23:57:083
241999965,1cyclictest1029-21snmpd20:24:133
241999964,1cyclictest8661-21ntpq21:40:183
241999964,1cyclictest35-21ksoftirqd/320:05:523
241999964,1cyclictest32744-21idleruntime-cro20:34:593
241999964,1cyclictest28526-21apt-get21:25:123
241999964,1cyclictest13729-21ntp_states21:00:183
241999964,1cyclictest1029-21snmpd22:57:253
241999964,0cyclictest17036-21diskmemload21:20:033
241999963,1cyclictest294-21systemd-udevd19:37:083
241999963,1cyclictest240-21systemd-journal22:15:013
241999962,3cyclictest17036-21diskmemload22:11:243
241999962,2cyclictest17036-21diskmemload00:27:313
241999961,4cyclictest12199-1kworker/u9:123:15:123
241999961,3cyclictest17036-21diskmemload22:02:093
241999961,2cyclictest6543-21ntp_states23:05:193
241999961,2cyclictest26557-21/usr/sbin/munin22:05:153
241999961,1cyclictest17597-21idleruntime23:20:163
241999961,1cyclictest16438-21seq00:02:463
241999961,1cyclictest0-21swapper/320:50:123
241999960,3cyclictest0-21swapper/323:00:103
241999960,2cyclictest16096-21diskstats22:35:143
241999960,2cyclictest0-21swapper/300:15:473
241949966,0cyclictest61650irq/122-eno121:00:192
241949966,0cyclictest61650irq/122-eno119:21:222
241949966,0cyclictest61650irq/122-eno100:30:052
241949965,1cyclictest61650irq/122-eno119:55:202
241949965,1cyclictest28-21ksoftirqd/220:15:172
241949965,0cyclictest61650irq/122-eno119:45:112
241949964,1cyclictest28-21ksoftirqd/221:05:172
241899961,5cyclictest0-21swapper/123:20:121
241899961,3cyclictest0-21swapper/120:10:211
241899961,2cyclictest27322-21chrt00:16:481
241899960,6cyclictest0-21swapper/122:11:421
241899960,6cyclictest0-21swapper/121:50:031
241899960,6cyclictest0-21swapper/121:41:181
241899960,6cyclictest0-21swapper/120:56:411
241899960,6cyclictest0-21swapper/120:30:491
241899960,6cyclictest0-21swapper/119:55:091
241899960,5cyclictest0-21swapper/122:05:281
241899960,5cyclictest0-21swapper/120:35:031
241899960,5cyclictest0-21swapper/120:16:311
241899960,3cyclictest0-21swapper/121:21:521
241899960,3cyclictest0-21swapper/100:02:441
241899960,2cyclictest0-21swapper/122:25:131
241899960,1cyclictest0-21swapper/123:54:461
241899960,1cyclictest0-21swapper/122:44:201
241899960,1cyclictest0-21swapper/121:38:121
241899960,1cyclictest0-21swapper/121:15:431
241899960,1cyclictest0-21swapper/119:40:121
241899960,1cyclictest0-21swapper/100:30:161
241899960,1cyclictest0-21swapper/100:07:011
241899960,0cyclictest0-21swapper/123:46:071
241899960,0cyclictest0-21swapper/123:25:111
241899960,0cyclictest0-21swapper/122:50:171
241899960,0cyclictest0-21swapper/122:24:181
241859965,1cyclictest14489-21sshd21:02:390
241859965,0cyclictest18820-21apt-get20:05:120
241859964,1cyclictest21158-21ssh00:10:110
241859963,2cyclictest445150/usr/sbin/munin19:35:190
241859962,1cyclictest4237-21awk19:35:000
241859961,2cyclictest28048-21perf20:25:010
241859960,6cyclictest0-21swapper/021:06:330
241859960,6cyclictest0-21swapper/020:38:070
241859960,6cyclictest0-21swapper/020:34:270
241859960,6cyclictest0-21swapper/020:16:380
241859960,5cyclictest8054-21fschecks_count21:40:140
241859960,0cyclictest0-21swapper/019:18:130
241859960,0cyclictest0-21swapper/000:30:490
241999955,0cyclictest26556-21kworker/3:120:37:103
241999953,1cyclictest29963-21sed20:25:233
241999953,1cyclictest27440-21apt-get19:15:123
241999953,1cyclictest1029-21snmpd20:59:223
241999953,1cyclictest1029-21snmpd19:47:233
241999952,2cyclictest14746-21grep19:55:153
241999950,1cyclictest0-21swapper/320:10:173
241899955,0cyclictest0-21swapper/121:27:121
241899955,0cyclictest0-21swapper/119:25:241
241899952,2cyclictest0-21swapper/123:31:331
241899950,5cyclictest0-21swapper/123:36:031
241899950,5cyclictest0-21swapper/123:00:161
241899950,5cyclictest0-21swapper/122:59:041
241899950,5cyclictest0-21swapper/122:45:021
241899950,5cyclictest0-21swapper/122:35:541
241899950,5cyclictest0-21swapper/121:58:121
241899950,5cyclictest0-21swapper/121:14:591
241899950,5cyclictest0-21swapper/120:53:381
241899950,5cyclictest0-21swapper/120:44:581
241899950,5cyclictest0-21swapper/119:50:171
241899950,5cyclictest0-21swapper/119:14:101
241899950,3cyclictest0-21swapper/123:55:221
241899950,3cyclictest0-21swapper/122:17:091
241899950,2cyclictest0-21swapper/123:10:201
241899950,0cyclictest0-21swapper/119:20:121
241899950,0cyclictest0-21swapper/100:10:121
241859953,1cyclictest24391-21/usr/sbin/munin19:10:190
241859950,4cyclictest14092-21/usr/sbin/munin19:55:130
241859950,2cyclictest0-21swapper/020:55:110
241859950,0cyclictest0-21swapper/020:42:220
13394250,0sleep10-21swapper/123:15:131
241999940,1cyclictest240-21systemd-journal19:39:593
241899944,0cyclictest0-21swapper/120:03:021
241899942,1cyclictest5988-21chrt20:45:131
241899942,1cyclictest0-21swapper/123:07:501
241899940,3cyclictest0-21swapper/121:46:081
241899940,2cyclictest0-21swapper/100:25:341
241899940,2cyclictest0-21swapper/100:20:171
241899940,1cyclictest14323-21chrt21:00:311
241859940,4cyclictest0-21swapper/019:20:120
241899931,1cyclictest0-21swapper/119:30:101
241899930,1cyclictest0-21swapper/119:45:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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