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2026-08-19 - 03:53
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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 Aug 19, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1828223960,12sleep121-21ksoftirqd/119:05:121
200652229156,24sleep00-21swapper/019:07:370
201102208175,21sleep30-21swapper/319:08:123
200672202162,26sleep20-21swapper/219:07:392
20363992018,1cyclictest0-21swapper/321:40:133
20355991919,0cyclictest28-21ksoftirqd/200:39:182
20355991918,1cyclictest28-21ksoftirqd/220:05:162
20355991818,0cyclictest28-21ksoftirqd/221:30:122
20355991818,0cyclictest28-21ksoftirqd/221:26:272
34242170,0sleep00-21swapper/022:25:330
2035599169,4cyclictest28-21ksoftirqd/220:25:122
20355991616,0cyclictest28-21ksoftirqd/222:08:562
20355991616,0cyclictest28-21ksoftirqd/200:03:062
284242150,0sleep10-21swapper/121:30:151
20363991512,2cyclictest1262-21/usr/sbin/munin20:45:183
20355991515,0cyclictest28-21ksoftirqd/223:40:552
20355991515,0cyclictest28-21ksoftirqd/222:48:042
20355991515,0cyclictest28-21ksoftirqd/221:55:322
20355991515,0cyclictest28-21ksoftirqd/221:20:322
20355991515,0cyclictest28-21ksoftirqd/221:19:172
20355991515,0cyclictest28-21ksoftirqd/200:12:302
20355991514,1cyclictest28-21ksoftirqd/223:12:032
20355991514,1cyclictest28-21ksoftirqd/223:12:022
20355991513,1cyclictest28-21ksoftirqd/223:08:562
2034899150,1cyclictest0-21swapper/120:00:181
2034899150,1cyclictest0-21swapper/100:25:001
2034399150,1cyclictest29341-21idleruntime-cro23:05:000
20363991412,1cyclictest32499-21ntp_states20:40:193
20363991412,1cyclictest21466-21sed00:25:003
20363991412,1cyclictest14568-21apt-get00:15:133
20363991412,1cyclictest0-21swapper/321:45:223
20355991414,0cyclictest28-21ksoftirqd/223:33:302
20355991414,0cyclictest28-21ksoftirqd/223:16:342
20355991414,0cyclictest28-21ksoftirqd/222:55:562
20355991414,0cyclictest28-21ksoftirqd/200:28:112
20355991414,0cyclictest28-21ksoftirqd/200:22:432
20355991414,0cyclictest28-21ksoftirqd/200:16:562
20355991413,1cyclictest28-21ksoftirqd/222:36:122
20355991413,1cyclictest28-21ksoftirqd/221:36:412
2034899140,1cyclictest0-21swapper/122:55:171
2034899140,1cyclictest0-21swapper/122:19:421
2034899140,1cyclictest0-21swapper/121:10:001
2034899140,1cyclictest0-21swapper/120:45:181
282322130,0sleep30-21swapper/322:15:193
20363991311,2cyclictest23786-21ntp_states22:55:173
20363991311,2cyclictest0-21swapper/319:15:003
20363991311,1cyclictest13024-21turbostat21:10:003
2035599139,3cyclictest2856-21fschecks_count21:40:132
20355991313,0cyclictest28-21ksoftirqd/223:57:082
20355991313,0cyclictest28-21ksoftirqd/223:57:082
20355991313,0cyclictest28-21ksoftirqd/223:29:192
20355991313,0cyclictest28-21ksoftirqd/223:20:572
20355991313,0cyclictest28-21ksoftirqd/222:50:392
20355991313,0cyclictest28-21ksoftirqd/222:28:462
20355991313,0cyclictest28-21ksoftirqd/221:51:022
20355991313,0cyclictest28-21ksoftirqd/219:40:142
20355991312,1cyclictest28-21ksoftirqd/222:40:162
20355991312,1cyclictest28-21ksoftirqd/219:20:002
20355991311,1cyclictest28-21ksoftirqd/223:00:212
20355991311,1cyclictest28-21ksoftirqd/222:05:002
20355991311,1cyclictest28-21ksoftirqd/220:25:002
2034899130,12cyclictest0-21swapper/121:41:201
2034899130,1cyclictest0-21swapper/121:50:191
2034899130,1cyclictest0-21swapper/121:47:041
2034899130,0cyclictest0-21swapper/123:20:131
2034899130,0cyclictest0-21swapper/120:15:161
2034399130,3cyclictest4089-21apt-get00:00:130
2036399129,2cyclictest26650-21fschecks_time23:45:153
2036399125,6cyclictest13043-21diskmemload22:20:163
20363991211,1cyclictest0-21swapper/322:27:293
20363991211,1cyclictest0-21swapper/321:20:153
20363991211,1cyclictest0-21swapper/321:15:113
20363991210,1cyclictest15582-21taskset21:58:093
20363991210,1cyclictest13043-21diskmemload22:10:143
20363991210,1cyclictest0-21swapper/323:34:173
20355991212,0cyclictest28-21ksoftirqd/222:32:112
20355991212,0cyclictest28-21ksoftirqd/222:21:562
20355991212,0cyclictest28-21ksoftirqd/222:17:412
20355991212,0cyclictest28-21ksoftirqd/219:20:132
20355991212,0cyclictest28-21ksoftirqd/200:32:072
20355991211,1cyclictest28-21ksoftirqd/223:45:172
20355991211,1cyclictest28-21ksoftirqd/220:00:002
20355991210,1cyclictest28-21ksoftirqd/223:50:112
20355991210,1cyclictest28-21ksoftirqd/223:35:112
20355991210,1cyclictest28-21ksoftirqd/221:45:232
20355991210,1cyclictest28-21ksoftirqd/221:05:002
20355991210,1cyclictest28-21ksoftirqd/219:40:002
20355991210,1cyclictest28-21ksoftirqd/219:15:002
20355991210,1cyclictest28-21ksoftirqd/200:05:212
2034899120,1cyclictest0-21swapper/123:04:331
2034899120,1cyclictest0-21swapper/100:30:131
2034899120,0cyclictest0-21swapper/123:38:001
2034899120,0cyclictest0-21swapper/123:32:471
2034899120,0cyclictest0-21swapper/119:45:221
2034899120,0cyclictest0-21swapper/119:15:211
2034899120,0cyclictest0-21swapper/100:39:161
2034399122,5cyclictest13058-21grep21:10:000
20343991210,1cyclictest16097-21sh21:13:460
2034399120,4cyclictest13043-21diskmemload23:40:420
2034399120,2cyclictest0-21swapper/022:35:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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