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2026-05-13 - 01:55
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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 Wed May 13, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43492204164,27sleep30-21swapper/319:09:533
43482199161,25sleep20-21swapper/219:09:532
42232199160,26sleep10-21swapper/119:08:141
40092199135,21sleep00-21swapper/019:05:270
288032650,0sleep10-21swapper/122:33:001
191932130,0sleep10-21swapper/121:35:351
4431991210,1cyclictest9-21ksoftirqd/021:15:000
444099116,4cyclictest12591-21sh21:28:352
444199101,6cyclictest35-21ksoftirqd/322:15:183
4440991010,0cyclictest28-21ksoftirqd/223:10:162
444099101,8cyclictest6803-21munin-node22:44:362
443199108,1cyclictest9-21ksoftirqd/021:45:000
443199100,7cyclictest27499-21python22:30:190
443199100,5cyclictest12332-21apt-get22:55:130
44419993,5cyclictest6803-21munin-node00:34:443
44419990,5cyclictest10048-21/usr/sbin/munin22:50:203
44409999,0cyclictest0-21swapper/223:34:322
44409999,0cyclictest0-21swapper/200:27:492
44409997,1cyclictest28-21ksoftirqd/219:20:002
44409993,3cyclictest240-21systemd-journal19:40:012
44409993,3cyclictest240-21systemd-journal19:40:002
44409990,1cyclictest7358-21/usr/sbin/munin22:05:112
44349990,8cyclictest0-21swapper/123:35:331
44349990,8cyclictest0-21swapper/123:21:121
44349990,8cyclictest0-21swapper/123:05:081
44349990,8cyclictest0-21swapper/122:46:361
44349990,8cyclictest0-21swapper/121:55:101
44349990,8cyclictest0-21swapper/121:25:521
44349990,8cyclictest0-21swapper/100:30:491
44319998,1cyclictest9-21ksoftirqd/021:58:250
44319997,1cyclictest9-21ksoftirqd/021:09:590
44319997,1cyclictest9-21ksoftirqd/020:09:590
44319997,1cyclictest9-21ksoftirqd/019:19:370
44319992,6cyclictest27413-21perf21:05:000
44319991,5cyclictest14812-21apt-get22:15:100
44319991,4cyclictest12228-21sed19:25:000
44319990,5cyclictest17963-21perf20:45:010
44319990,5cyclictest0-21swapper/000:05:120
44319990,1cyclictest240-21systemd-journal20:30:000
31604290,0sleep30-21swapper/321:53:573
44419987,1cyclictest35-21ksoftirqd/320:59:593
44419986,1cyclictest23530-21snmpd19:20:413
44419980,6cyclictest23530-21snmpd19:40:093
44409987,1cyclictest28-21ksoftirqd/221:30:262
44409986,1cyclictest61650irq/122-eno123:30:002
44409986,1cyclictest61650irq/122-eno123:24:592
44409986,1cyclictest61650irq/122-eno121:12:302
44409986,1cyclictest61650irq/122-eno119:15:002
44409986,1cyclictest61650irq/122-eno100:20:122
44409980,2cyclictest0-21swapper/221:20:092
44409980,2cyclictest0-21swapper/219:20:122
44349980,8cyclictest0-21swapper/123:41:121
44349980,8cyclictest0-21swapper/123:12:071
44349980,8cyclictest0-21swapper/122:27:491
44349980,8cyclictest0-21swapper/122:14:311
44349980,8cyclictest0-21swapper/121:46:361
44349980,8cyclictest0-21swapper/121:31:591
44349980,8cyclictest0-21swapper/121:21:021
44349980,8cyclictest0-21swapper/100:35:441
44349980,8cyclictest0-21swapper/100:01:071
44349980,0cyclictest0-21swapper/122:35:421
44319987,1cyclictest9-21ksoftirqd/000:33:100
44319987,1cyclictest1747-21ntpd20:00:200
44319986,1cyclictest32426-21ssh22:37:410
44319986,1cyclictest32410-21ssh23:20:170
44319986,1cyclictest23530-21snmpd20:30:140
44319983,5cyclictest23530-21snmpd00:25:200
44319980,6cyclictest29715-21diskmemload21:15:200
44319980,4cyclictest14981-21latency_hist00:25:000
44319980,3cyclictest29715-21diskmemload23:40:180
44319980,3cyclictest240-21systemd-journal00:05:000
44319980,1cyclictest27597-21ssh21:48:100
1995280,1sleep20-21swapper/221:15:162
44419976,1cyclictest35-21ksoftirqd/322:30:183
44419976,1cyclictest35-21ksoftirqd/320:55:003
44419975,1cyclictest35-21ksoftirqd/322:20:283
44419975,1cyclictest23530-21snmpd23:35:223
44419975,1cyclictest23530-21snmpd22:10:143
44419975,1cyclictest23530-21snmpd21:14:083
44419975,1cyclictest23530-21snmpd21:08:363
44419975,1cyclictest23530-21snmpd19:55:483
44419975,1cyclictest23530-21snmpd19:37:203
44419975,1cyclictest23530-21snmpd19:37:203
44419974,1cyclictest29715-21diskmemload23:41:483
44419973,4cyclictest11650-21kworker/u8:100:21:543
44419973,1cyclictest24377-21ssh22:26:063
44419971,3cyclictest0-21swapper/300:05:163
44419970,6cyclictest2752-21/usr/sbin/munin21:15:203
44419970,6cyclictest1730-21df_inode20:10:143
44419970,6cyclictest13034-21ssh21:29:463
44419970,5cyclictest30577-21/usr/sbin/munin00:00:223
44419970,4cyclictest0-21swapper/323:55:193
44419970,2cyclictest0-21swapper/322:47:033
44409976,1cyclictest61650irq/122-eno123:40:332
44409976,1cyclictest61650irq/122-eno123:35:112
44409976,1cyclictest61650irq/122-eno123:00:132
44409976,1cyclictest61650irq/122-eno122:28:122
44409976,1cyclictest61650irq/122-eno122:12:462
44409976,1cyclictest61650irq/122-eno121:41:362
44409976,1cyclictest23530-21snmpd00:15:142
44409976,0cyclictest61650irq/122-eno123:15:192
44409975,2cyclictest23530-21snmpd19:48:422
44409975,1cyclictest61650irq/122-eno100:30:182
44409975,1cyclictest28-21ksoftirqd/222:03:252
44409975,1cyclictest18228-21cat21:35:162
44409974,1cyclictest294-21systemd-udevd22:47:072
44409973,1cyclictest9119-21df_inode22:50:132
44409971,6cyclictest29715-21diskmemload21:55:202
44409971,6cyclictest28411-21kworker/u8:100:05:252
44409971,6cyclictest0-21swapper/220:01:542
44409971,6cyclictest0-21swapper/200:14:192
44409971,4cyclictest19108-21/usr/sbin/munin22:20:142
44409970,7cyclictest0-21swapper/221:51:042
44409970,2cyclictest0-21swapper/223:46:392
44409970,1cyclictest3580-21apt-get20:15:112
44349970,7cyclictest0-21swapper/123:59:161
44349970,7cyclictest0-21swapper/123:50:011
44349970,7cyclictest0-21swapper/123:31:311
44349970,7cyclictest0-21swapper/122:21:171
44349970,7cyclictest0-21swapper/122:16:521
44349970,7cyclictest0-21swapper/122:07:051
44349970,7cyclictest0-21swapper/122:01:141
44349970,7cyclictest0-21swapper/121:50:491
44349970,7cyclictest0-21swapper/121:42:281
44349970,7cyclictest0-21swapper/119:50:061
44349970,7cyclictest0-21swapper/100:29:341
44349970,7cyclictest0-21swapper/100:19:181
44349970,7cyclictest0-21swapper/100:10:101
44349970,0cyclictest0-21swapper/123:49:071
44349970,0cyclictest0-21swapper/123:26:271
44349970,0cyclictest0-21swapper/123:16:461
44349970,0cyclictest0-21swapper/123:00:561
44349970,0cyclictest0-21swapper/122:55:011
44349970,0cyclictest0-21swapper/122:51:181
44349970,0cyclictest0-21swapper/122:40:491
44349970,0cyclictest0-21swapper/121:15:091
44349970,0cyclictest0-21swapper/121:11:271
44349970,0cyclictest0-21swapper/120:40:161
44349970,0cyclictest0-21swapper/120:05:191
44349970,0cyclictest0-21swapper/100:20:011
44349970,0cyclictest0-21swapper/100:05:581
44319976,1cyclictest6772-21ssh00:13:100
44319976,1cyclictest23530-21snmpd22:05:350
44319976,1cyclictest23530-21snmpd22:03:160
44319976,1cyclictest18737-21telnet22:20:130
44319976,1cyclictest15398-1kworker/u9:223:10:060
44319975,1cyclictest6978-21ssh22:46:140
44319975,1cyclictest26013-21ssh23:55:140
44319975,1cyclictest23530-21snmpd23:51:170
44319975,1cyclictest23530-21snmpd20:18:410
44319975,1cyclictest23530-21snmpd20:13:040
44319973,3cyclictest6948-21sed19:15:010
44319973,2cyclictest240-21systemd-journal19:45:010
44319972,5cyclictest29715-21diskmemload21:50:340
44319971,4cyclictest6478-21apt-get23:30:120
44319971,4cyclictest29715-21diskmemload23:07:450
44319971,4cyclictest29715-21diskmemload22:43:550
44319970,6cyclictest4720-21ssh23:26:280
44319970,6cyclictest22307-21apt-get22:25:120
44319970,6cyclictest16972-21fschecks_time23:00:170
44319970,6cyclictest11841-21timerwakeupswit23:35:220
44319970,6cyclictest11394-21ssh22:53:120
44319970,6cyclictest10065-21cstates21:25:140
44319970,6cyclictest0-21swapper/023:15:170
44319970,6cyclictest0-21swapper/021:35:160
44319970,6cyclictest0-21swapper/021:20:000
44319970,6cyclictest0-21swapper/020:55:150
44319970,6cyclictest0-21swapper/019:49:590
44319970,1cyclictest29715-21diskmemload21:30:170
44319970,1cyclictest0-21swapper/022:10:150
44319970,1cyclictest0-21swapper/000:15:150
44419965,1cyclictest6702-21ssh00:12:593
44419965,1cyclictest27816-21ssh21:48:473
44419965,1cyclictest24223-21ssh21:44:133
44419965,1cyclictest23530-21snmpd20:26:583
44419965,1cyclictest23530-21snmpd19:10:513
44419965,1cyclictest18534-21ssh23:01:403
44419965,1cyclictest14377-21ssh22:56:053
44419964,1cyclictest9608-21ssh00:15:383
44419964,1cyclictest7117-21ssh21:20:183
44419964,1cyclictest35-21ksoftirqd/319:32:383
44419964,1cyclictest23530-21snmpd23:16:193
44419964,1cyclictest23530-21snmpd23:10:113
44419964,1cyclictest23530-21snmpd21:56:043
44419964,1cyclictest23530-21snmpd20:46:453
44419964,1cyclictest23530-21snmpd20:04:253
44419963,1cyclictest35-21ksoftirqd/320:09:593
44419963,1cyclictest17415-21runrttasks00:26:303
44419962,1cyclictest20000-21apt-get23:05:103
44419961,2cyclictest9080-21/usr/sbin/munin22:05:193
44419961,2cyclictest0-21swapper/323:30:133
44419961,1cyclictest0-21swapper/322:40:143
44419960,6cyclictest0-21swapper/320:30:103
44419960,2cyclictest0-21swapper/323:45:023
44419960,2cyclictest0-21swapper/319:15:013
44419960,1cyclictest0-21swapper/323:50:403
44419960,1cyclictest0-21swapper/321:30:153
44419960,0cyclictest29715-21diskmemload22:35:443
44419960,0cyclictest0-21swapper/323:21:073
44409966,0cyclictest61650irq/122-eno123:55:452
44409966,0cyclictest61650irq/122-eno123:50:562
44409966,0cyclictest61650irq/122-eno123:06:332
44409966,0cyclictest61650irq/122-eno122:55:152
44409966,0cyclictest61650irq/122-eno122:15:112
44409966,0cyclictest61650irq/122-eno121:00:052
44409966,0cyclictest61650irq/122-eno120:55:132
44409966,0cyclictest61650irq/122-eno120:40:212
44409966,0cyclictest61650irq/122-eno120:25:182
44409966,0cyclictest61650irq/122-eno120:13:172
44409966,0cyclictest61650irq/122-eno120:05:122
44409966,0cyclictest61650irq/122-eno119:40:082
44409966,0cyclictest61650irq/122-eno119:26:472
44409966,0cyclictest61650irq/122-eno100:00:012
44409965,1cyclictest61650irq/122-eno122:35:112
44409965,1cyclictest61650irq/122-eno120:54:572
44409965,1cyclictest61650irq/122-eno100:36:202
44409965,1cyclictest26630-21ssh21:45:272
44409964,1cyclictest61650irq/122-eno122:30:132
44409963,2cyclictest10872-21/usr/sbin/munin20:30:122
44409962,1cyclictest0-21swapper/220:35:122
44409962,1cyclictest0-21swapper/220:35:122
44409961,5cyclictest0-21swapper/219:54:182
44409960,2cyclictest0-21swapper/219:55:112
44409960,1cyclictest0-21swapper/220:20:112
44349960,6cyclictest0-21swapper/119:55:061
44349960,6cyclictest0-21swapper/119:25:001
44349960,5cyclictest0-21swapper/120:40:011
44349960,5cyclictest0-21swapper/120:40:011
44349960,2cyclictest0-21swapper/120:24:221
44349960,1cyclictest0-21swapper/120:59:591
44349960,0cyclictest0-21swapper/121:05:221
44349960,0cyclictest0-21swapper/120:50:191
44349960,0cyclictest0-21swapper/120:25:211
44349960,0cyclictest0-21swapper/119:35:021
44349960,0cyclictest0-21swapper/119:35:011
44349960,0cyclictest0-21swapper/119:30:201
44349960,0cyclictest0-21swapper/119:10:201
44319964,1cyclictest6010-21aten_r1power_en20:20:110
44319960,6cyclictest0-21swapper/019:35:420
44319960,6cyclictest0-21swapper/019:35:410
44319960,5cyclictest24568-21ssh00:35:330
44319960,0cyclictest0-21swapper/023:45:140
44319960,0cyclictest0-21swapper/020:47:370
27015264,1sleep10-21swapper/121:00:441
44419954,1cyclictest23530-21snmpd19:50:513
44419953,1cyclictest3845-21egrep22:00:143
44419953,1cyclictest3442-21cat23:25:163
44419953,1cyclictest26322-21grep21:00:183
44419953,1cyclictest23704-21sshd19:46:393
44419953,1cyclictest13056-21grep19:25:153
44419953,1cyclictest0-21swapper/320:35:193
44419953,1cyclictest0-21swapper/320:35:193
44419952,1cyclictest4104-21runrttasks20:15:153
44419950,3cyclictest0-21swapper/300:35:033
44419950,2cyclictest0-21swapper/321:35:113
44419950,1cyclictest0-21swapper/320:40:003
44409955,0cyclictest61650irq/122-eno121:05:102
44409955,0cyclictest61650irq/122-eno120:45:132
44409954,1cyclictest61650irq/122-eno119:30:142
44349955,0cyclictest0-21swapper/120:15:141
44349950,5cyclictest0-21swapper/120:15:001
44349950,5cyclictest0-21swapper/120:05:001
44349950,4cyclictest0-21swapper/120:48:231
44349950,0cyclictest0-21swapper/119:45:061
44349950,0cyclictest0-21swapper/119:40:031
44349950,0cyclictest0-21swapper/119:25:201
44319953,1cyclictest23530-21snmpd19:30:010
44319950,4cyclictest0-21swapper/020:35:100
44319950,4cyclictest0-21swapper/020:35:100
44319950,0cyclictest0-21swapper/020:52:470
44319950,0cyclictest0-21swapper/019:55:110
44319950,0cyclictest0-21swapper/019:50:110
44319950,0cyclictest0-21swapper/019:25:200
44419940,2cyclictest0-21swapper/320:20:133
44349940,4cyclictest0-21swapper/120:30:281
44349940,4cyclictest0-21swapper/119:16:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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