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2026-07-29 - 18:57
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Wed Jul 29, 2026 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25722212157,42sleep30-21swapper/307:06:143
26712204148,23sleep00-21swapper/007:07:320
25382204149,20sleep10-21swapper/107:05:481
25342203169,22sleep20-21swapper/207:05:442
8482740,0sleep10-21swapper/109:15:201
2967991919,0cyclictest28-21ksoftirqd/212:28:022
2967991919,0cyclictest28-21ksoftirqd/212:02:192
2967991918,1cyclictest28-21ksoftirqd/211:32:012
2967991818,0cyclictest28-21ksoftirqd/210:07:482
2967991817,1cyclictest28-21ksoftirqd/211:00:212
136572180,0sleep10-21swapper/111:05:181
2967991717,0cyclictest28-21ksoftirqd/212:09:422
2967991717,0cyclictest28-21ksoftirqd/211:28:002
2967991717,0cyclictest28-21ksoftirqd/210:51:232
2967991717,0cyclictest28-21ksoftirqd/209:55:092
2967991717,0cyclictest28-21ksoftirqd/209:52:302
2967991717,0cyclictest28-21ksoftirqd/209:52:302
2967991716,1cyclictest28-21ksoftirqd/210:59:122
2967991616,0cyclictest28-21ksoftirqd/212:21:552
2967991616,0cyclictest28-21ksoftirqd/211:07:232
2967991616,0cyclictest28-21ksoftirqd/210:47:162
294599169,6cyclictest9-21ksoftirqd/011:35:230
2967991515,0cyclictest28-21ksoftirqd/212:17:542
2967991515,0cyclictest28-21ksoftirqd/212:11:242
2967991515,0cyclictest28-21ksoftirqd/211:57:522
2967991515,0cyclictest28-21ksoftirqd/211:50:382
2967991515,0cyclictest28-21ksoftirqd/211:14:312
2967991515,0cyclictest28-21ksoftirqd/210:40:552
2967991515,0cyclictest28-21ksoftirqd/210:40:552
2967991515,0cyclictest28-21ksoftirqd/209:47:062
2967991515,0cyclictest28-21ksoftirqd/209:05:122
2967991515,0cyclictest28-21ksoftirqd/208:30:182
2967991414,0cyclictest28-21ksoftirqd/211:46:372
2967991414,0cyclictest28-21ksoftirqd/211:41:532
2967991414,0cyclictest28-21ksoftirqd/211:21:092
2967991414,0cyclictest28-21ksoftirqd/211:21:092
2967991414,0cyclictest28-21ksoftirqd/211:15:462
2967991414,0cyclictest28-21ksoftirqd/210:36:302
2967991414,0cyclictest28-21ksoftirqd/210:27:052
2967991414,0cyclictest28-21ksoftirqd/210:24:422
2967991414,0cyclictest28-21ksoftirqd/210:03:522
2967991414,0cyclictest28-21ksoftirqd/209:40:252
2967991414,0cyclictest28-21ksoftirqd/209:37:082
2967991413,1cyclictest28-21ksoftirqd/209:34:242
2967991413,1cyclictest28-21ksoftirqd/208:25:122
2967991410,2cyclictest28-21ksoftirqd/210:18:432
294599144,5cyclictest31266-21sed10:00:010
2945991412,1cyclictest9-21ksoftirqd/011:50:150
48172130,0sleep30-21swapper/310:54:113
2967991313,0cyclictest28-21ksoftirqd/212:35:012
2967991313,0cyclictest28-21ksoftirqd/212:30:532
2967991313,0cyclictest28-21ksoftirqd/210:30:432
2967991313,0cyclictest28-21ksoftirqd/209:29:202
2967991313,0cyclictest28-21ksoftirqd/209:22:592
2967991311,1cyclictest28-21ksoftirqd/209:16:122
2967991311,1cyclictest28-21ksoftirqd/207:35:002
2945991313,0cyclictest9-21ksoftirqd/010:35:160
2945991313,0cyclictest9-21ksoftirqd/008:05:010
189292130,0sleep10-21swapper/110:26:531
296799128,4cyclictest28-21ksoftirqd/208:20:142
2967991212,0cyclictest28-21ksoftirqd/211:35:022
2967991211,1cyclictest28-21ksoftirqd/208:40:002
2967991211,1cyclictest28-21ksoftirqd/207:55:132
2967991211,1cyclictest28-21ksoftirqd/207:54:592
2967991211,1cyclictest28-21ksoftirqd/207:15:222
2967991210,1cyclictest28-21ksoftirqd/210:10:192
2967991210,1cyclictest28-21ksoftirqd/209:15:002
2967991210,1cyclictest28-21ksoftirqd/208:55:122
2967991210,1cyclictest28-21ksoftirqd/208:45:192
2967991210,1cyclictest28-21ksoftirqd/208:20:002
2967991210,1cyclictest28-21ksoftirqd/207:30:002
2967991210,1cyclictest28-21ksoftirqd/207:15:012
294599127,5cyclictest9-21ksoftirqd/008:10:190
2945991212,0cyclictest9-21ksoftirqd/008:25:150
2945991211,1cyclictest9-21ksoftirqd/012:25:000
2945991211,1cyclictest9-21ksoftirqd/012:00:160
2945991211,1cyclictest9-21ksoftirqd/009:15:190
2945991211,1cyclictest9-21ksoftirqd/009:10:160
2945991210,1cyclictest23783-21tail11:20:180
2945991210,1cyclictest23783-21tail11:20:180
2974991110,1cyclictest35-21ksoftirqd/311:40:003
296799119,1cyclictest28-21ksoftirqd/209:00:192
296799119,1cyclictest28-21ksoftirqd/208:50:002
296799119,1cyclictest28-21ksoftirqd/208:45:002
296799119,1cyclictest28-21ksoftirqd/208:05:202
2967991110,1cyclictest28-21ksoftirqd/208:10:152
2967991110,1cyclictest28-21ksoftirqd/208:00:162
2967991110,1cyclictest28-21ksoftirqd/207:50:002
2967991110,1cyclictest28-21ksoftirqd/207:35:122
2967991110,1cyclictest28-21ksoftirqd/207:20:122
294599119,1cyclictest9-21ksoftirqd/011:45:170
294599119,1cyclictest5474-21fschecks_time11:40:150
294599112,4cyclictest9392-21latency_hist10:15:000
2945991110,1cyclictest9-21ksoftirqd/011:05:210
2945991110,1cyclictest9-21ksoftirqd/010:40:200
2945991110,1cyclictest9-21ksoftirqd/010:40:190
2945991110,1cyclictest9-21ksoftirqd/010:32:440
2945991110,1cyclictest9-21ksoftirqd/010:25:120
2945991110,1cyclictest9-21ksoftirqd/007:25:140
297499109,1cyclictest35-21ksoftirqd/311:15:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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