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2026-08-22 - 14:52
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Sat Aug 22, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124762209147,24sleep10-21swapper/107:09:351
124902205166,25sleep00-21swapper/007:09:460
122662203164,25sleep30-21swapper/307:06:513
103992198160,25sleep20-21swapper/207:05:042
12595991817,1cyclictest35-21ksoftirqd/311:25:233
12595991716,1cyclictest35-21ksoftirqd/308:05:013
12595991715,1cyclictest35-21ksoftirqd/307:15:203
12595991616,0cyclictest35-21ksoftirqd/311:32:253
12595991616,0cyclictest35-21ksoftirqd/310:48:223
12595991615,1cyclictest35-21ksoftirqd/310:05:123
19542150,1sleep01953-21cut09:00:140
19542150,1sleep01953-21cut09:00:140
141312150,0sleep10-21swapper/107:10:181
12595991515,0cyclictest35-21ksoftirqd/312:32:083
12595991515,0cyclictest35-21ksoftirqd/312:22:213
12595991515,0cyclictest35-21ksoftirqd/310:04:263
12595991515,0cyclictest35-21ksoftirqd/308:35:153
12595991515,0cyclictest35-21ksoftirqd/308:25:193
12595991412,1cyclictest35-21ksoftirqd/308:15:143
1258599143,4cyclictest20391-21gpgv12:35:000
1259599134,7cyclictest35-21ksoftirqd/309:05:143
1259599134,6cyclictest35-21ksoftirqd/307:50:203
12595991313,0cyclictest35-21ksoftirqd/312:39:033
12595991313,0cyclictest35-21ksoftirqd/310:23:483
12595991313,0cyclictest35-21ksoftirqd/309:35:183
12595991313,0cyclictest35-21ksoftirqd/308:30:173
12595991312,1cyclictest35-21ksoftirqd/310:25:163
12595991312,1cyclictest35-21ksoftirqd/308:45:163
12595991311,1cyclictest35-21ksoftirqd/312:15:223
12595991311,1cyclictest35-21ksoftirqd/311:45:003
12594991312,1cyclictest28-21ksoftirqd/210:00:162
12594991311,1cyclictest28-21ksoftirqd/208:24:592
12585991312,1cyclictest9-21ksoftirqd/008:35:000
1259599125,4cyclictest35-21ksoftirqd/308:05:153
12595991212,0cyclictest35-21ksoftirqd/312:15:003
12595991212,0cyclictest35-21ksoftirqd/310:45:003
12595991212,0cyclictest35-21ksoftirqd/308:55:113
12595991211,1cyclictest5035-21latency_hist07:59:593
12595991211,1cyclictest35-21ksoftirqd/311:49:593
12595991211,1cyclictest35-21ksoftirqd/309:20:123
12595991211,1cyclictest35-21ksoftirqd/307:20:183
12595991210,1cyclictest35-21ksoftirqd/312:25:173
12595991210,1cyclictest35-21ksoftirqd/312:00:183
12595991210,1cyclictest35-21ksoftirqd/311:50:183
12595991210,1cyclictest35-21ksoftirqd/311:37:553
12595991210,1cyclictest35-21ksoftirqd/311:09:593
12595991210,1cyclictest35-21ksoftirqd/310:15:153
12595991210,1cyclictest35-21ksoftirqd/310:10:193
12595991210,1cyclictest35-21ksoftirqd/310:00:013
12595991210,1cyclictest35-21ksoftirqd/309:50:123
12594991211,1cyclictest28-21ksoftirqd/211:19:592
12594991210,1cyclictest28-21ksoftirqd/211:05:002
12594991210,1cyclictest28-21ksoftirqd/210:50:222
1259499120,0cyclictest0-21swapper/210:16:332
1259599119,1cyclictest35-21ksoftirqd/311:55:193
1259599119,1cyclictest35-21ksoftirqd/311:15:133
1259599119,1cyclictest35-21ksoftirqd/310:50:133
1259599119,1cyclictest35-21ksoftirqd/310:35:163
1259599119,1cyclictest35-21ksoftirqd/310:30:213
1259599119,1cyclictest35-21ksoftirqd/309:45:193
1259599119,1cyclictest35-21ksoftirqd/309:25:143
1259599118,1cyclictest35-21ksoftirqd/308:20:003
12595991111,0cyclictest35-21ksoftirqd/309:15:213
12595991110,1cyclictest35-21ksoftirqd/311:10:153
12595991110,1cyclictest35-21ksoftirqd/310:55:133
12595991110,1cyclictest35-21ksoftirqd/309:30:153
12595991110,1cyclictest35-21ksoftirqd/309:15:003
12595991110,1cyclictest35-21ksoftirqd/308:45:003
1259499119,1cyclictest28-21ksoftirqd/212:30:152
1259499119,1cyclictest28-21ksoftirqd/212:20:012
1259499119,1cyclictest28-21ksoftirqd/208:15:012
1259499119,1cyclictest28-21ksoftirqd/207:15:012
12594991110,1cyclictest28-21ksoftirqd/211:30:132
1259499110,0cyclictest0-21swapper/212:07:272
1259499110,0cyclictest0-21swapper/210:28:572
1259599109,1cyclictest35-21ksoftirqd/311:20:133
1259599109,1cyclictest35-21ksoftirqd/311:00:353
1259599109,1cyclictest35-21ksoftirqd/309:40:213
1259599109,1cyclictest35-21ksoftirqd/307:50:003
1259599109,1cyclictest35-21ksoftirqd/307:30:203
1259599108,1cyclictest35-21ksoftirqd/312:05:153
1259599108,1cyclictest35-21ksoftirqd/308:10:103
1259599108,1cyclictest35-21ksoftirqd/307:44:593
1259599108,1cyclictest35-21ksoftirqd/307:29:593
1259599108,1cyclictest35-21ksoftirqd/307:10:123
12595991010,0cyclictest35-21ksoftirqd/307:40:003
1259499109,1cyclictest28-21ksoftirqd/212:00:142
1259499109,1cyclictest28-21ksoftirqd/211:59:592
1259499109,1cyclictest28-21ksoftirqd/207:40:512
1259499108,1cyclictest28-21ksoftirqd/209:35:002
1259499108,1cyclictest28-21ksoftirqd/207:15:012
1258599104,5cyclictest24117-21latency_hist12:39:590
1258599101,4cyclictest26418-21latency_hist10:24:590
1258599100,6cyclictest28084-21python10:25:210
124062100,0sleep00-21swapper/009:19:140
27257290,0sleep10-21swapper/111:56:471
125959999,0cyclictest35-21ksoftirqd/308:50:133
125959997,1cyclictest35-21ksoftirqd/309:00:123
125959997,1cyclictest35-21ksoftirqd/309:00:123
125949998,1cyclictest28-21ksoftirqd/212:25:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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