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2026-09-07 - 16:16
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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 Mon Sep 07, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1060523540,4sleep30-21swapper/307:05:133
124092205171,22sleep10-21swapper/107:08:141
123932202162,26sleep20-21swapper/207:08:032
125202199159,25sleep00-21swapper/007:09:420
255042510,1sleep21263999cyclictest09:35:212
278292170,0sleep00-21swapper/007:40:130
1262399140,2cyclictest20370-21munin-run07:25:000
1263199130,12cyclictest0-21swapper/112:20:111
1262399132,5cyclictest0-21swapper/011:14:590
12639991211,1cyclictest28-21ksoftirqd/212:35:162
12639991211,1cyclictest28-21ksoftirqd/211:35:172
12639991211,1cyclictest28-21ksoftirqd/210:00:212
12639991211,1cyclictest28-21ksoftirqd/210:00:202
12639991210,1cyclictest28-21ksoftirqd/209:55:002
1262399121,10cyclictest26296-21perf10:25:000
1262399120,4cyclictest4223-21/usr/sbin/munin11:25:130
1263999119,1cyclictest28-21ksoftirqd/211:55:152
1263999119,1cyclictest28-21ksoftirqd/209:40:162
12639991110,1cyclictest28-21ksoftirqd/212:25:162
12639991110,1cyclictest28-21ksoftirqd/211:25:112
12639991110,1cyclictest28-21ksoftirqd/210:45:182
12639991110,1cyclictest28-21ksoftirqd/209:45:102
12639991110,1cyclictest28-21ksoftirqd/209:25:132
1263999110,10cyclictest0-21swapper/210:35:212
1262399115,5cyclictest11301-21snmpd10:01:080
1262399115,5cyclictest11301-21snmpd10:01:080
1264899108,1cyclictest21880-21ssh10:17:133
1264899100,8cyclictest18859-21apt-get08:30:113
1264899100,5cyclictest27686-21apt-get07:40:113
1263999109,1cyclictest28-21ksoftirqd/212:05:162
1263999109,1cyclictest28-21ksoftirqd/211:50:192
1263999109,1cyclictest28-21ksoftirqd/210:05:202
1263999109,1cyclictest28-21ksoftirqd/209:10:152
1263999109,0cyclictest28-21ksoftirqd/209:55:122
1263999108,1cyclictest28-21ksoftirqd/210:25:112
1263999108,1cyclictest28-21ksoftirqd/209:20:152
1263999108,1cyclictest28-21ksoftirqd/209:15:182
1263999108,1cyclictest28-21ksoftirqd/208:40:152
1263999108,1cyclictest28-21ksoftirqd/208:05:002
1262399106,4cyclictest5475-21diskmemload09:55:110
1262399105,4cyclictest11301-21snmpd11:17:490
1262399101,3cyclictest30968-21apt-key08:55:000
1262399100,9cyclictest5264-21munin-run09:55:000
1262399100,9cyclictest0-21swapper/010:11:170
1262399100,9cyclictest0-21swapper/009:25:150
1262399100,2cyclictest240-21systemd-journal12:09:590
1262399100,2cyclictest240-21systemd-journal08:45:000
1262399100,0cyclictest5475-21diskmemload12:36:370
1262399100,0cyclictest0-21swapper/012:18:080
1262399100,0cyclictest0-21swapper/012:18:080
126489997,1cyclictest35-21ksoftirqd/308:57:213
126489990,5cyclictest0-21swapper/310:10:133
126399999,0cyclictest28-21ksoftirqd/212:30:132
126399999,0cyclictest28-21ksoftirqd/210:41:412
126399998,1cyclictest28-21ksoftirqd/212:16:452
126399998,1cyclictest28-21ksoftirqd/212:16:452
126399998,1cyclictest28-21ksoftirqd/212:15:002
126399998,1cyclictest28-21ksoftirqd/209:34:382
126399998,1cyclictest28-21ksoftirqd/209:05:142
126399998,0cyclictest28-21ksoftirqd/212:20:152
126399997,1cyclictest28-21ksoftirqd/210:20:152
126239993,1cyclictest1018-21sort07:50:170
126239991,1cyclictest0-21swapper/011:40:000
126239990,4cyclictest30118-21sed12:00:200
126239990,4cyclictest22924-21ssh11:05:140
126239990,4cyclictest0-21swapper/010:08:240
126239990,2cyclictest240-21systemd-journal08:35:010
126239990,2cyclictest0-21swapper/009:16:240
126239990,1cyclictest548-21systemd-logind07:15:000
126239990,1cyclictest240-21systemd-journal11:50:000
126239990,1cyclictest240-21systemd-journal10:50:000
126239990,1cyclictest240-21systemd-journal08:20:000
126239990,1cyclictest240-21systemd-journal08:15:000
126239990,1cyclictest240-21systemd-journal07:35:010
126239990,1cyclictest240-21systemd-journal07:30:010
126239990,1cyclictest16506-21/usr/sbin/munin08:25:190
126239990,0cyclictest2968-21ssh11:21:510
126239990,0cyclictest0-21swapper/010:42:480
126239990,0cyclictest0-21swapper/010:19:160
126239990,0cyclictest0-21swapper/009:35:240
126489986,1cyclictest11301-21snmpd10:50:363
126489986,1cyclictest11301-21snmpd09:37:323
126489986,1cyclictest11301-21snmpd08:11:203
126489986,1cyclictest11301-21snmpd07:59:383
126489980,4cyclictest557-21irqbalance11:06:473
126489980,4cyclictest0-21swapper/309:46:013
126489980,4cyclictest0-21swapper/309:10:443
126399988,0cyclictest28-21ksoftirqd/210:50:212
126399988,0cyclictest28-21ksoftirqd/210:10:192
126399987,1cyclictest28-21ksoftirqd/211:30:172
126399987,1cyclictest28-21ksoftirqd/210:15:182
126399987,1cyclictest28-21ksoftirqd/209:00:132
126399987,1cyclictest28-21ksoftirqd/208:46:222
126399987,1cyclictest28-21ksoftirqd/208:05:122
126399986,1cyclictest28-21ksoftirqd/211:40:162
126399986,1cyclictest28-21ksoftirqd/208:35:012
126399986,1cyclictest11301-21snmpd11:46:052
126399986,1cyclictest11301-21snmpd10:55:132
126399980,2cyclictest0-21swapper/207:50:122
126239987,1cyclictest18359-21ssh10:58:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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