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2026-08-16 - 23:14
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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 Sun Aug 16, 2026 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236392211172,26sleep30-21swapper/307:06:353
238542201146,21sleep20-21swapper/207:09:232
236472197158,25sleep10-21swapper/107:06:421
235742197157,26sleep00-21swapper/007:05:430
139182800,1sleep013917-21gltestperf09:50:160
129322670,0sleep10-21swapper/109:00:151
312432210,1sleep231248-21pmu-power11:00:202
292732200,0sleep121-21ksoftirqd/111:45:011
23982991313,0cyclictest9-21ksoftirqd/008:20:170
23982991211,1cyclictest9-21ksoftirqd/009:39:590
2400399110,10cyclictest1898-21apt-get07:30:123
2399499110,10cyclictest61650irq/122-eno110:52:092
2399299110,10cyclictest0-21swapper/109:05:181
2399299110,10cyclictest0-21swapper/107:35:201
2398299113,4cyclictest4373-21perf11:10:000
23982991110,1cyclictest9-21ksoftirqd/009:20:180
2399499109,1cyclictest30165-21ssh10:13:442
2399499100,10cyclictest0-21swapper/210:32:052
2398299109,1cyclictest9-21ksoftirqd/012:30:010
2398299108,1cyclictest9-21ksoftirqd/010:05:000
2398299108,1cyclictest9-21ksoftirqd/009:55:140
2398299108,1cyclictest9-21ksoftirqd/008:10:010
2398299107,1cyclictest9-21ksoftirqd/007:49:590
2398299100,7cyclictest11301-21snmpd11:28:280
240039998,0cyclictest0-21swapper/312:36:323
240039998,0cyclictest0-21swapper/312:36:323
240039995,3cyclictest27925-21aten_r1power_po09:25:123
239949990,1cyclictest0-21swapper/210:25:212
239929996,0cyclictest0-21swapper/112:08:351
239829998,1cyclictest9-21ksoftirqd/012:15:170
239829998,1cyclictest9-21ksoftirqd/011:20:130
239829998,1cyclictest9-21ksoftirqd/010:50:010
239829998,1cyclictest9-21ksoftirqd/010:20:010
239829998,1cyclictest9-21ksoftirqd/010:10:140
239829998,1cyclictest9-21ksoftirqd/009:25:160
239829998,1cyclictest9-21ksoftirqd/007:55:010
239829997,1cyclictest9-21ksoftirqd/012:10:150
239829997,1cyclictest9-21ksoftirqd/007:20:000
239829995,3cyclictest561-21nscd09:19:190
239829995,3cyclictest561-21nscd09:19:180
239829990,5cyclictest16637-21diskmemload10:42:250
240039988,0cyclictest35-21ksoftirqd/309:34:313
240039987,1cyclictest35-21ksoftirqd/310:49:153
240039986,1cyclictest23332-21apt-get08:15:143
240039986,1cyclictest23332-21apt-get08:15:133
240039986,1cyclictest11301-21snmpd11:21:233
240039986,1cyclictest11301-21snmpd09:42:283
240039986,1cyclictest11301-21snmpd08:45:203
240039981,6cyclictest1982-21sendmail-mta11:46:053
240039981,4cyclictest16637-21diskmemload09:20:213
240039980,6cyclictest0-21swapper/310:36:523
240039980,6cyclictest0-21swapper/310:10:123
240039980,5cyclictest0-21swapper/309:35:443
240039980,3cyclictest0-21swapper/309:59:193
239949988,0cyclictest0-21swapper/209:11:072
239949988,0cyclictest0-21swapper/209:11:072
239949988,0cyclictest0-21swapper/208:25:162
239949986,1cyclictest7008-21cat09:40:172
239949986,1cyclictest61650irq/122-eno111:39:242
239949986,1cyclictest61650irq/122-eno111:17:382
239949986,1cyclictest61650irq/122-eno111:11:122
239949986,1cyclictest61650irq/122-eno109:25:182
239949986,1cyclictest11301-21snmpd12:23:552
239949981,4cyclictest8751-21apt-get07:45:002
239949980,6cyclictest2315-21cron09:34:592
239949980,6cyclictest0-21swapper/211:26:562
239949980,4cyclictest12481-21cstates09:00:142
239949980,4cyclictest11301-21snmpd10:05:512
239929983,5cyclictest21-21ksoftirqd/110:50:111
239929980,7cyclictest0-21swapper/111:00:181
239929980,3cyclictest0-21swapper/108:35:111
239829988,0cyclictest9-21ksoftirqd/010:40:010
239829988,0cyclictest9-21ksoftirqd/010:25:110
239829987,1cyclictest9-21ksoftirqd/011:50:150
239829987,1cyclictest9-21ksoftirqd/011:15:150
239829987,1cyclictest9-21ksoftirqd/011:15:000
239829987,1cyclictest9-21ksoftirqd/010:20:170
239829987,1cyclictest9-21ksoftirqd/009:40:160
239829987,1cyclictest9-21ksoftirqd/007:20:150
239829986,1cyclictest9-21ksoftirqd/011:59:590
239829986,1cyclictest9-21ksoftirqd/011:50:010
239829986,1cyclictest9-21ksoftirqd/009:45:140
239829986,1cyclictest9-21ksoftirqd/008:05:000
239829986,1cyclictest9-21ksoftirqd/007:30:010
239829986,1cyclictest11301-21snmpd09:33:400
239829980,7cyclictest32460-21ssh11:02:330
239829980,4cyclictest12211-21perf10:34:590
240039976,1cyclictest19526-21cat11:30:153
240039976,1cyclictest11301-21snmpd10:56:573
240039976,1cyclictest11301-21snmpd07:35:273
240039975,1cyclictest3034-21ssh11:05:523
240039975,1cyclictest22174-21ssh10:00:333
240039975,1cyclictest11301-21snmpd11:42:203
240039975,1cyclictest11301-21snmpd09:12:193
240039975,1cyclictest11301-21snmpd09:12:183
240039975,1cyclictest11301-21snmpd08:41:453
240039975,1cyclictest11301-21snmpd08:28:353
240039975,1cyclictest11301-21snmpd08:13:203
240039975,1cyclictest11301-21snmpd08:09:523
240039975,1cyclictest11301-21snmpd08:00:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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