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2026-08-26 - 00:25
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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 Tue Aug 25, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48052217152,22sleep20-21swapper/207:08:232
48422215150,21sleep00-21swapper/007:08:490
49252197160,24sleep10-21swapper/107:09:541
47092197158,25sleep30-21swapper/307:07:073
214552700,0sleep00-21swapper/010:26:010
501499143,5cyclictest23081-21apt-config09:45:010
304652140,0sleep230468-21pmu-power11:25:182
501499130,12cyclictest0-21swapper/010:35:160
5040991212,0cyclictest35-21ksoftirqd/311:35:003
504099119,1cyclictest35-21ksoftirqd/311:40:003
5031991110,1cyclictest28-21ksoftirqd/210:05:152
503199110,5cyclictest1772-21apt-get10:00:122
503199110,11cyclictest0-21swapper/212:27:392
501499112,4cyclictest22460-21perf07:45:000
501499111,5cyclictest15997-21cat08:40:000
504099109,1cyclictest35-21ksoftirqd/309:45:003
504099109,1cyclictest35-21ksoftirqd/307:15:013
504099108,1cyclictest35-21ksoftirqd/312:05:153
504099108,1cyclictest35-21ksoftirqd/311:55:003
503199108,1cyclictest28-21ksoftirqd/211:45:172
503199100,10cyclictest0-21swapper/209:24:412
503199100,1cyclictest0-21swapper/211:15:402
5023991010,0cyclictest0-21swapper/108:16:141
501499102,4cyclictest12796-21ls07:25:010
955298,0sleep1111rcu_preempt10:45:011
50409997,1cyclictest35-21ksoftirqd/310:58:483
50409990,9cyclictest29096-1kworker/u9:110:44:413
50319999,0cyclictest28-21ksoftirqd/210:50:202
50319999,0cyclictest0-21swapper/210:39:112
50319998,1cyclictest28-21ksoftirqd/212:35:202
50319998,1cyclictest28-21ksoftirqd/211:57:002
50319998,1cyclictest28-21ksoftirqd/211:30:132
50319998,1cyclictest28-21ksoftirqd/211:05:002
50319998,1cyclictest28-21ksoftirqd/210:15:192
50319997,1cyclictest28-21ksoftirqd/208:25:152
50319991,7cyclictest1006-21apt-get10:45:102
50319990,9cyclictest0-21swapper/210:40:432
50149996,1cyclictest9-21ksoftirqd/009:04:590
50149993,5cyclictest25441-21perf09:00:010
50149991,4cyclictest7098-21latency_hist11:40:010
50409988,0cyclictest35-21ksoftirqd/310:34:033
50409987,1cyclictest35-21ksoftirqd/311:12:383
50409987,1cyclictest35-21ksoftirqd/311:12:383
50409987,1cyclictest35-21ksoftirqd/309:35:293
50409986,1cyclictest30093-21diskmemload12:26:383
50409986,1cyclictest11301-21snmpd07:43:023
50409986,1cyclictest11301-21snmpd07:28:463
50409985,1cyclictest35-21ksoftirqd/309:50:003
50409982,3cyclictest10648-21apt-get07:20:113
50409981,6cyclictest30093-21diskmemload11:06:053
50409981,5cyclictest0-21swapper/310:00:133
50409980,5cyclictest31361-21taskset11:26:313
50409980,3cyclictest18411-21df07:35:143
50319988,0cyclictest28-21ksoftirqd/209:40:222
50319987,1cyclictest28-21ksoftirqd/211:14:082
50319987,1cyclictest28-21ksoftirqd/211:14:072
50319987,1cyclictest28-21ksoftirqd/209:25:222
50319987,1cyclictest28-21ksoftirqd/207:10:152
50319986,1cyclictest61650irq/122-eno110:30:102
50319986,1cyclictest61650irq/122-eno109:35:142
50319986,1cyclictest28-21ksoftirqd/210:10:182
50319986,1cyclictest28-21ksoftirqd/208:55:132
50319986,1cyclictest28-21ksoftirqd/208:30:162
50319986,1cyclictest28-21ksoftirqd/208:10:132
50319986,1cyclictest11301-21snmpd07:59:042
50319986,1cyclictest11301-21snmpd07:32:492
50239980,8cyclictest0-21swapper/110:39:371
50239980,3cyclictest0-21swapper/112:02:031
50149987,1cyclictest7423-21ssh10:06:350
50149986,1cyclictest9-21ksoftirqd/008:41:490
50149986,1cyclictest17760-21sensors09:35:190
50149986,1cyclictest1747-21ntpd10:30:590
50149986,1cyclictest1747-21ntpd08:05:590
50149986,1cyclictest11301-21snmpd12:17:450
50149986,1cyclictest11301-21snmpd10:14:500
50149986,1cyclictest11301-21snmpd09:52:350
50149986,1cyclictest11301-21snmpd07:17:000
50149984,2cyclictest548-21systemd-logind11:10:210
50149984,2cyclictest548-21systemd-logind11:10:200
50149984,2cyclictest240-21systemd-journal08:30:010
50149982,1cyclictest22207-21/usr/sbin/munin11:15:170
50149980,7cyclictest22428-21ssh12:00:170
50149980,7cyclictest13492-21ssh11:48:140
50149980,4cyclictest17577-21wc11:55:000
17358280,1sleep20-21swapper/211:54:282
50409976,1cyclictest35-21ksoftirqd/311:24:593
50409976,1cyclictest12919-21ntpq11:00:203
50409976,1cyclictest12352-21cat08:30:193
50409976,1cyclictest11301-21snmpd10:45:273
50409976,1cyclictest11301-21snmpd08:10:243
50409975,1cyclictest11301-21snmpd10:26:093
50409975,1cyclictest11301-21snmpd09:30:113
50409975,1cyclictest11301-21snmpd09:30:103
50409975,1cyclictest11301-21snmpd08:47:523
50409974,2cyclictest31795-21/usr/sbin/munin12:15:133
50409973,1cyclictest30093-21diskmemload11:45:403
50409972,5cyclictest6800-1kworker/u9:209:27:173
50409972,4cyclictest11301-21snmpd08:17:453
50409971,5cyclictest30093-21diskmemload10:20:103
50409971,3cyclictest13293-21ssh12:35:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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