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2026-06-14 - 18:31
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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 Jun 14, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198532216151,51sleep00-21swapper/007:05:400
199312205149,43sleep10-21swapper/107:06:411
199532202162,26sleep30-21swapper/307:06:593
199772201163,24sleep20-21swapper/207:07:192
137912760,0sleep10-21swapper/108:00:161
107262140,0sleep30-21swapper/307:55:143
2028599130,12cyclictest827-21/usr/sbin/munin10:20:212
20269991311,1cyclictest9-21ksoftirqd/009:15:010
20292991210,1cyclictest35-21ksoftirqd/311:00:013
2028599120,0cyclictest0-21swapper/209:42:492
2028599110,11cyclictest0-21swapper/209:46:142
2026999119,1cyclictest9-21ksoftirqd/008:00:000
2026999119,1cyclictest101rcuc/010:10:150
2026999113,4cyclictest12755-21wc11:20:000
20269991110,1cyclictest9-21ksoftirqd/010:50:140
20269991110,1cyclictest9-21ksoftirqd/008:15:010
20269991110,1cyclictest9-21ksoftirqd/007:35:000
245692100,0sleep10-21swapper/109:24:311
2028599101,4cyclictest10583-21apt-get07:55:132
2028599100,5cyclictest13526-21diskmemload11:40:122
2026999109,1cyclictest9-21ksoftirqd/010:25:000
2026999109,1cyclictest9-21ksoftirqd/009:20:000
2026999108,1cyclictest9-21ksoftirqd/010:05:170
2026999108,1cyclictest9-21ksoftirqd/010:00:140
2026999102,4cyclictest23717-21apt-get11:35:000
2026999102,4cyclictest11223-21latency_hist09:05:000
20269991010,0cyclictest9-21ksoftirqd/010:25:190
2026999100,9cyclictest0-21swapper/012:10:140
202929998,1cyclictest35-21ksoftirqd/312:35:003
202929998,1cyclictest35-21ksoftirqd/309:50:003
202929998,0cyclictest35-21ksoftirqd/312:37:403
202929990,8cyclictest1029-21snmpd10:37:263
202859999,0cyclictest0-21swapper/211:48:322
202859998,1cyclictest28-21ksoftirqd/210:15:462
202859994,2cyclictest240-21systemd-journal09:10:012
202859994,2cyclictest240-21systemd-journal09:10:012
202859991,5cyclictest22547-21kworker/u8:110:52:442
202699999,0cyclictest9-21ksoftirqd/009:45:000
202699998,1cyclictest9-21ksoftirqd/012:20:010
202699998,1cyclictest9-21ksoftirqd/011:04:130
202699998,1cyclictest9-21ksoftirqd/007:39:590
202699997,1cyclictest9-21ksoftirqd/009:20:130
202699997,1cyclictest9-21ksoftirqd/008:55:000
202699991,4cyclictest8853-21sed09:00:000
202699991,4cyclictest19319-21perf10:45:000
202699990,4cyclictest9839-21cut12:00:000
202929986,1cyclictest35-21ksoftirqd/307:15:013
202929986,1cyclictest1029-21snmpd10:50:483
202929986,1cyclictest1029-21snmpd10:00:423
202929986,1cyclictest1029-21snmpd09:56:153
202929986,1cyclictest1029-21snmpd09:56:153
202929986,1cyclictest1029-21snmpd08:15:273
202929981,6cyclictest14820-1kworker/u9:210:41:033
202929981,4cyclictest0-21swapper/309:40:183
202859986,1cyclictest61650irq/122-eno111:50:172
202859986,1cyclictest61650irq/122-eno110:55:102
202859986,1cyclictest61650irq/122-eno109:37:112
202859986,1cyclictest18278-21cat09:15:162
202859981,4cyclictest24185-21apt-get11:35:112
202859980,6cyclictest22651-21munin-node08:38:192
202859980,4cyclictest0-21swapper/210:28:232
202789981,3cyclictest0-21swapper/111:30:111
202699988,0cyclictest9-21ksoftirqd/011:10:130
202699987,1cyclictest9-21ksoftirqd/010:30:110
202699987,1cyclictest9-21ksoftirqd/009:35:130
202699987,1cyclictest9-21ksoftirqd/009:30:140
202699987,1cyclictest9-21ksoftirqd/009:30:000
202699987,1cyclictest9-21ksoftirqd/008:45:000
202699986,1cyclictest9-21ksoftirqd/009:40:120
202699986,1cyclictest1029-21snmpd11:49:510
202699986,1cyclictest1029-21snmpd09:07:200
202699986,1cyclictest1029-21snmpd09:07:190
202699986,1cyclictest1029-21snmpd08:02:050
202699980,6cyclictest4582-21ssh11:07:380
202699980,5cyclictest0-21swapper/011:50:400
202929976,1cyclictest35-21ksoftirqd/308:27:323
202929976,1cyclictest21362-21cat07:10:133
202929976,1cyclictest1029-21snmpd12:11:313
202929976,1cyclictest1029-21snmpd11:31:333
202929976,1cyclictest1029-21snmpd11:17:533
202929976,1cyclictest1029-21snmpd11:06:503
202929976,1cyclictest1029-21snmpd10:27:303
202929975,1cyclictest19503-21ssh10:45:023
202929975,1cyclictest1029-21snmpd12:20:333
202929975,1cyclictest1029-21snmpd12:07:133
202929975,1cyclictest1029-21snmpd11:46:483
202929975,1cyclictest1029-21snmpd11:36:533
202929975,1cyclictest1029-21snmpd10:21:053
202929975,1cyclictest1029-21snmpd10:14:543
202929972,1cyclictest3318-21awk08:45:193
202929971,3cyclictest13526-21diskmemload09:50:053
202929970,6cyclictest15632-21ssh09:10:423
202929970,5cyclictest0-21swapper/311:40:153
202929970,4cyclictest693-21runrttasks12:25:093
202929970,1cyclictest0-21swapper/310:08:113
202859976,1cyclictest61650irq/122-eno112:25:092
202859976,1cyclictest61650irq/122-eno112:15:092
202859976,1cyclictest61650irq/122-eno111:11:462
202859976,1cyclictest61650irq/122-eno109:55:122
202859976,1cyclictest61650irq/122-eno109:55:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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