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2026-07-28 - 05:12
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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 Tue Jul 28, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291172213158,43sleep00-21swapper/019:06:390
292002211174,24sleep10-21swapper/119:07:461
291032200160,26sleep30-21swapper/319:06:303
290872199160,26sleep20-21swapper/219:06:182
80722730,0sleep10-21swapper/121:35:001
235292570,0sleep30-21swapper/323:26:283
216912180,2sleep12945799cyclictest22:39:591
136322150,0sleep20-21swapper/221:40:212
110202150,1sleep3341rcuc/321:38:093
5312140,0sleep20-21swapper/222:10:082
2946899149,1cyclictest35-21ksoftirqd/322:45:143
2945799140,13cyclictest56-21kworker/1:120:25:461
2945799140,13cyclictest0-21swapper/119:20:101
2945799130,13cyclictest56-21kworker/1:123:36:051
2945799130,13cyclictest56-21kworker/1:121:10:301
2945799130,13cyclictest0-21swapper/123:13:391
2945799130,13cyclictest0-21swapper/122:40:051
2945799130,13cyclictest0-21swapper/122:28:531
2945799130,0cyclictest21-21ksoftirqd/100:09:391
2945799130,0cyclictest0-21swapper/122:51:181
2945799130,0cyclictest0-21swapper/100:32:031
29462991210,1cyclictest28-21ksoftirqd/220:20:012
2945799120,12cyclictest0-21swapper/122:17:421
2945799120,11cyclictest0-21swapper/119:15:461
2945799120,0cyclictest0-21swapper/122:06:291
2945799120,0cyclictest0-21swapper/120:03:211
2945799120,0cyclictest0-21swapper/119:29:451
29468991110,1cyclictest35-21ksoftirqd/322:55:013
29462991111,0cyclictest28-21ksoftirqd/200:05:012
29457991111,0cyclictest21-21ksoftirqd/123:43:051
29457991111,0cyclictest21-21ksoftirqd/123:28:511
2944999119,1cyclictest9-21ksoftirqd/022:55:000
2944999113,4cyclictest22345-21latency_hist21:09:590
29449991110,1cyclictest9-21ksoftirqd/023:25:220
29449991110,0cyclictest9-21ksoftirqd/000:35:170
2946899109,1cyclictest35-21ksoftirqd/321:50:003
2946899109,1cyclictest35-21ksoftirqd/321:45:003
2946899108,1cyclictest35-21ksoftirqd/323:00:013
2946899100,7cyclictest11301-21snmpd21:58:473
2946299109,1cyclictest28-21ksoftirqd/223:15:002
2946299109,1cyclictest28-21ksoftirqd/221:45:122
2946299100,7cyclictest9996-21kworker/u8:222:03:142
2946299100,6cyclictest61650irq/122-eno123:40:112
2945799108,1cyclictest21-21ksoftirqd/100:20:181
2945799108,1cyclictest111rcu_preempt00:10:181
2945799107,2cyclictest0-21swapper/100:35:111
2945799101,8cyclictest111rcu_preempt19:57:481
2944999109,1cyclictest9-21ksoftirqd/023:30:170
2944999109,1cyclictest9-21ksoftirqd/022:30:000
2944999109,1cyclictest9-21ksoftirqd/021:25:160
2944999109,1cyclictest9-21ksoftirqd/021:20:150
2944999108,1cyclictest9-21ksoftirqd/000:35:000
2944999107,3cyclictest9-21ksoftirqd/023:35:190
29449991010,0cyclictest9-21ksoftirqd/022:29:590
2944999101,5cyclictest561-21nscd22:05:350
2944999100,5cyclictest4825-21latency_hist19:25:010
2944999100,2cyclictest0-21swapper/023:05:120
190112100,0sleep022317-21diskmemload00:05:310
294689999,0cyclictest35-21ksoftirqd/322:34:593
294689999,0cyclictest35-21ksoftirqd/322:20:013
294689998,1cyclictest35-21ksoftirqd/322:00:133
294689998,1cyclictest35-21ksoftirqd/319:20:123
294689997,1cyclictest35-21ksoftirqd/322:25:003
294689990,5cyclictest0-21swapper/321:15:133
294629998,1cyclictest28-21ksoftirqd/223:55:012
294629998,1cyclictest28-21ksoftirqd/223:19:592
294629997,1cyclictest28-21ksoftirqd/222:30:232
294629997,1cyclictest28-21ksoftirqd/219:25:012
294629997,1cyclictest28-21ksoftirqd/219:15:002
294629990,5cyclictest22317-21diskmemload23:30:192
294579999,0cyclictest21-21ksoftirqd/123:50:281
294579999,0cyclictest21-21ksoftirqd/123:15:131
294579999,0cyclictest21-21ksoftirqd/123:01:031
294579999,0cyclictest21-21ksoftirqd/122:55:141
294579999,0cyclictest21-21ksoftirqd/122:20:421
294579999,0cyclictest21-21ksoftirqd/122:03:011
294579999,0cyclictest21-21ksoftirqd/121:54:481
294579999,0cyclictest21-21ksoftirqd/121:47:351
294579999,0cyclictest21-21ksoftirqd/121:43:091
294579999,0cyclictest21-21ksoftirqd/121:21:091
294579999,0cyclictest21-21ksoftirqd/120:35:111
294579998,1cyclictest21-21ksoftirqd/120:46:221
294579998,1cyclictest21-21ksoftirqd/119:31:031
294579998,0cyclictest21-21ksoftirqd/121:35:161
294579996,2cyclictest0-21swapper/123:45:131
294579993,5cyclictest21-21ksoftirqd/100:25:071
294579992,6cyclictest21-21ksoftirqd/123:21:261
294579991,8cyclictest111rcu_preempt21:56:361
294579991,8cyclictest111rcu_preempt21:18:141
294579991,8cyclictest111rcu_preempt00:15:401
294579991,8cyclictest111rcu_preempt00:02:241
294579991,7cyclictest111rcu_preempt23:57:041
294579991,7cyclictest111rcu_preempt20:15:211
294579991,0cyclictest111rcu_preempt21:29:371
294579990,1cyclictest21-21ksoftirqd/122:32:461
294499999,0cyclictest9-21ksoftirqd/022:35:150
294499998,1cyclictest9-21ksoftirqd/023:55:150
294499998,1cyclictest9-21ksoftirqd/023:15:140
294499998,1cyclictest9-21ksoftirqd/021:40:140
294499998,1cyclictest9-21ksoftirqd/000:14:590
294499997,1cyclictest9-21ksoftirqd/020:05:000
294499990,4cyclictest0-21swapper/000:25:120
294689987,1cyclictest35-21ksoftirqd/323:55:233
294689987,1cyclictest35-21ksoftirqd/320:25:013
294689986,1cyclictest11301-21snmpd23:39:063
294689986,1cyclictest11301-21snmpd23:14:393
294689986,1cyclictest11301-21snmpd19:53:003
294689982,4cyclictest29444-21cyclictest21:23:483
294629988,0cyclictest28-21ksoftirqd/222:15:142
294629987,1cyclictest28-21ksoftirqd/222:29:592
294629987,1cyclictest28-21ksoftirqd/221:10:142
294629987,0cyclictest0-21swapper/200:05:562
294629986,1cyclictest28-21ksoftirqd/221:35:142
294629983,4cyclictest8822-21grep19:30:202
294579988,0cyclictest21-21ksoftirqd/123:05:111
294579988,0cyclictest21-21ksoftirqd/122:10:111
294579988,0cyclictest21-21ksoftirqd/121:05:151
294579988,0cyclictest21-21ksoftirqd/121:00:111
294579988,0cyclictest21-21ksoftirqd/120:55:441
294579988,0cyclictest21-21ksoftirqd/120:10:091
294579988,0cyclictest21-21ksoftirqd/120:05:011
294579988,0cyclictest21-21ksoftirqd/119:52:231
294579988,0cyclictest21-21ksoftirqd/119:40:151
294579988,0cyclictest21-21ksoftirqd/119:10:131
294579987,1cyclictest21-21ksoftirqd/120:30:181
294579986,2cyclictest0-21swapper/120:20:191
294579981,7cyclictest111rcu_preempt20:50:221
294579980,8cyclictest21-21ksoftirqd/122:45:141
294579980,8cyclictest21-21ksoftirqd/119:35:311
294579980,8cyclictest0-21swapper/120:40:051
294579980,8cyclictest0-21swapper/119:45:131
294579980,0cyclictest0-21swapper/123:30:101
294499988,0cyclictest9-21ksoftirqd/022:40:130
294499988,0cyclictest9-21ksoftirqd/020:10:130
294499988,0cyclictest9-21ksoftirqd/000:14:590
294499987,1cyclictest9-21ksoftirqd/023:40:120
294499987,1cyclictest9-21ksoftirqd/022:20:130
294499987,1cyclictest9-21ksoftirqd/021:10:150
294499986,1cyclictest9-21ksoftirqd/020:54:590
294499986,1cyclictest11301-21snmpd20:25:120
294499983,3cyclictest5811-21awk20:35:010
294499982,5cyclictest17523-21kworker/0:100:00:130
294499981,6cyclictest3100-21ssh23:45:110
294499981,1cyclictest0-21swapper/021:59:550
294499980,7cyclictest6763-21ssh21:31:140
294499980,1cyclictest10832-21ssh23:10:110
294689977,0cyclictest35-21ksoftirqd/300:35:133
294689977,0cyclictest35-21ksoftirqd/300:15:173
294689976,1cyclictest35-21ksoftirqd/319:15:003
294689976,1cyclictest35-21ksoftirqd/300:30:013
294689976,1cyclictest11301-21snmpd20:01:443
294689976,1cyclictest11301-21snmpd19:28:573
294689976,0cyclictest35-21ksoftirqd/322:30:003
294689975,1cyclictest35-21ksoftirqd/322:10:133
294689975,1cyclictest35-21ksoftirqd/319:34:553
294689975,1cyclictest35-21ksoftirqd/319:15:013
294689975,1cyclictest11301-21snmpd23:30:363
294689975,1cyclictest11301-21snmpd23:19:513
294689975,1cyclictest11301-21snmpd21:06:443
294689975,1cyclictest11301-21snmpd20:47:023
294689974,0cyclictest22317-21diskmemload22:07:103
294689972,4cyclictest35-21ksoftirqd/322:59:323
294689971,3cyclictest22317-21diskmemload23:46:533
294629977,0cyclictest0-21swapper/223:57:522
294629976,1cyclictest61650irq/122-eno121:30:232
294629976,1cyclictest61650irq/122-eno121:22:212
294629976,1cyclictest28-21ksoftirqd/223:50:012
294629976,1cyclictest28-21ksoftirqd/222:00:002
294629976,1cyclictest11301-21snmpd23:05:512
294629976,1cyclictest11301-21snmpd20:12:222
294629976,0cyclictest61650irq/122-eno121:28:172
294629976,0cyclictest61650irq/122-eno120:40:112
294629975,1cyclictest61650irq/122-eno120:25:002
294629975,1cyclictest61650irq/122-eno119:20:012
294629975,1cyclictest28-21ksoftirqd/222:20:132
294629975,1cyclictest28-21ksoftirqd/220:25:132
294629975,1cyclictest28-21ksoftirqd/200:20:012
294629975,1cyclictest28-21ksoftirqd/200:20:012
294629975,1cyclictest11301-21snmpd00:12:132
294629971,6cyclictest0-21swapper/219:42:182
294629970,6cyclictest22317-21diskmemload22:35:202
294629970,4cyclictest6026-21apt-get20:35:112
294629970,1cyclictest0-21swapper/200:27:042
294499977,0cyclictest9-21ksoftirqd/019:25:150
294499976,1cyclictest9-21ksoftirqd/023:25:000
294499976,1cyclictest9-21ksoftirqd/019:40:120
294499976,1cyclictest19292-1kworker/u9:200:20:060
294499976,1cyclictest13915-1kworker/u9:021:50:160
294499975,1cyclictest9-21ksoftirqd/023:00:140
294499975,1cyclictest9-21ksoftirqd/021:00:160
294499975,1cyclictest8258-21cat19:30:160
294499975,1cyclictest2222-21unixbench-2d22:10:200
294499975,1cyclictest11301-21snmpd20:47:590
294499975,0cyclictest22317-21diskmemload23:52:410
294499971,2cyclictest31751-21fschecks_count20:20:150
294499970,6cyclictest32442-21ssh22:55:040
294499970,6cyclictest15407-21ssh21:45:100
294499970,6cyclictest0-21swapper/021:15:120
294499970,6cyclictest0-21swapper/019:55:170
294499970,1cyclictest5117-21ssh22:15:170
294499970,1cyclictest27448-21ssh22:00:190
294499970,1cyclictest0-21swapper/022:45:170
294499970,1cyclictest0-21swapper/021:35:160
294689966,0cyclictest22317-21diskmemload22:40:383
294689966,0cyclictest11301-21snmpd23:50:063
294689965,1cyclictest6687-21ssh21:31:023
294689965,1cyclictest35-21ksoftirqd/320:44:593
294689965,1cyclictest35-21ksoftirqd/320:20:003
294689965,1cyclictest11301-21snmpd23:41:043
294689965,1cyclictest11301-21snmpd23:09:383
294689965,1cyclictest11301-21snmpd00:31:513
294689965,1cyclictest11301-21snmpd00:12:173
294689964,1cyclictest35-21ksoftirqd/320:25:003
294689964,1cyclictest11301-21snmpd20:53:323
294689964,1cyclictest11301-21snmpd20:37:353
294689964,1cyclictest11301-21snmpd00:05:353
294689962,2cyclictest18464-21/usr/sbin/munin23:20:143
294689962,1cyclictest4408-21munin-run21:30:013
294689962,1cyclictest17241-21sshd20:55:473
294689960,4cyclictest0-21swapper/322:35:123
294689960,3cyclictest0-21swapper/300:00:113
294629966,0cyclictest61650irq/122-eno123:35:012
294629966,0cyclictest61650irq/122-eno123:00:132
294629966,0cyclictest61650irq/122-eno122:50:182
294629966,0cyclictest61650irq/122-eno122:40:072
294629966,0cyclictest61650irq/122-eno121:15:132
294629966,0cyclictest61650irq/122-eno120:45:152
294629966,0cyclictest61650irq/122-eno120:30:182
294629966,0cyclictest61650irq/122-eno119:55:152
294629966,0cyclictest61650irq/122-eno119:47:272
294629966,0cyclictest61650irq/122-eno119:36:442
294629966,0cyclictest61650irq/122-eno119:28:372
294629965,1cyclictest61650irq/122-eno122:05:122
294629965,1cyclictest61650irq/122-eno120:54:342
294629965,1cyclictest31817-21kworker/2:000:32:022
294629965,1cyclictest28-21ksoftirqd/222:55:152
294629965,0cyclictest61650irq/122-eno123:20:112
294629964,1cyclictest61650irq/122-eno120:00:142
294629964,1cyclictest28-21ksoftirqd/220:55:022
294629964,1cyclictest28-21ksoftirqd/200:35:142
294629964,1cyclictest11301-21snmpd21:50:542
294629960,6cyclictest0-21swapper/221:00:582
294629960,6cyclictest0-21swapper/220:05:072
294629960,4cyclictest22576-21ntpq23:25:192
294629960,1cyclictest0-21swapper/222:45:152
294499965,1cyclictest9-21ksoftirqd/019:45:140
294499964,1cyclictest9-21ksoftirqd/020:05:130
294499964,1cyclictest11301-21snmpd20:15:070
294499962,2cyclictest240-21systemd-journal20:40:010
294499962,1cyclictest17008-21/usr/sbin/munin19:50:130
294499962,0cyclictest0-21swapper/020:59:190
294499960,6cyclictest0-21swapper/019:39:470
294499960,1cyclictest30668-21memory19:10:180
294499960,0cyclictest0-21swapper/019:18:160
294689955,0cyclictest35-21ksoftirqd/319:55:173
294689954,1cyclictest35-21ksoftirqd/320:05:133
294689954,1cyclictest24629-21ssh21:11:473
294689954,1cyclictest18929-21ssh21:50:113
294689954,1cyclictest11301-21snmpd21:01:143
294689953,1cyclictest12597-21cut19:40:143
294689951,2cyclictest240-21systemd-journal19:35:013
294689950,3cyclictest0-21swapper/300:20:113
294689950,1cyclictest14969-21cstates19:45:133
294629955,0cyclictest61650irq/122-eno119:54:392
294629954,1cyclictest28-21ksoftirqd/221:05:152
294499954,1cyclictest9-21ksoftirqd/020:35:130
294689942,1cyclictest4508-21idleruntime20:30:163
294689942,1cyclictest27398-21cat20:10:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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