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2026-05-08 - 14:29
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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 Fri May 08, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128182211160,25sleep30-21swapper/307:09:083
107752205134,26sleep10-21swapper/107:05:041
127972199160,25sleep20-21swapper/207:08:512
126662198161,24sleep00-21swapper/007:07:070
73682660,0sleep10-21swapper/112:01:531
63442600,0sleep30-21swapper/311:17:513
158012590,1sleep11299099cyclictest10:05:101
236722150,0sleep10-21swapper/108:35:191
110372150,0sleep20-21swapper/212:06:392
1299899130,12cyclictest14117-21apt-get09:20:122
1298699123,4cyclictest2414-21latency_hist12:40:000
12986991211,1cyclictest9-21ksoftirqd/010:04:590
13004991110,1cyclictest35-21ksoftirqd/310:50:003
1300499110,6cyclictest0-21swapper/312:00:113
12998991110,1cyclictest28-21ksoftirqd/207:25:012
1300499109,1cyclictest35-21ksoftirqd/307:15:003
1300499108,1cyclictest35-21ksoftirqd/309:20:013
1300499108,1cyclictest35-21ksoftirqd/309:20:003
1299899109,1cyclictest28-21ksoftirqd/211:10:012
130049999,0cyclictest35-21ksoftirqd/311:44:393
130049998,1cyclictest6010-21diskmemload09:43:143
130049998,1cyclictest35-21ksoftirqd/311:50:013
130049998,1cyclictest35-21ksoftirqd/310:45:003
130049997,1cyclictest3669-21idleruntime-cro09:05:003
130049997,1cyclictest35-21ksoftirqd/310:25:003
130049997,1cyclictest35-21ksoftirqd/308:08:153
130049997,1cyclictest35-21ksoftirqd/307:35:013
130049991,2cyclictest0-21swapper/312:10:393
130049990,7cyclictest0-21swapper/308:23:553
130049990,5cyclictest3893-21apt-get09:05:103
130049990,5cyclictest0-21swapper/311:26:283
129989998,1cyclictest1747-21ntpd09:38:372
129989997,1cyclictest28-21ksoftirqd/207:54:592
129989996,2cyclictest4508-21/usr/sbin/munin09:50:172
129989990,5cyclictest0-21swapper/210:40:102
129869996,1cyclictest240-21systemd-journal09:55:000
130049987,1cyclictest35-21ksoftirqd/309:15:013
130049987,1cyclictest35-21ksoftirqd/308:20:003
130049986,1cyclictest568-21nscd11:32:383
130049986,1cyclictest35-21ksoftirqd/311:55:113
130049986,1cyclictest35-21ksoftirqd/311:05:013
130049986,1cyclictest22831-21cat08:35:143
130049982,5cyclictest561-21nscd09:35:543
130049982,2cyclictest0-21swapper/312:34:473
130049981,5cyclictest6010-21diskmemload10:02:053
129989987,1cyclictest28-21ksoftirqd/211:40:002
129989986,1cyclictest61650irq/122-eno110:50:152
129989986,1cyclictest61650irq/122-eno110:05:142
129989986,1cyclictest28-21ksoftirqd/208:40:112
129989981,6cyclictest0-21swapper/208:20:112
129989981,5cyclictest61650irq/122-eno109:43:262
129989981,3cyclictest0-21swapper/211:28:442
129909980,8cyclictest0-21swapper/111:46:481
129909980,8cyclictest0-21swapper/109:30:481
129869987,1cyclictest9-21ksoftirqd/012:20:000
129869987,1cyclictest9-21ksoftirqd/009:26:520
129869987,1cyclictest9-21ksoftirqd/008:55:000
129869987,1cyclictest9-21ksoftirqd/008:30:100
129869987,1cyclictest9-21ksoftirqd/008:30:010
129869987,1cyclictest20387-1kworker/u9:011:05:420
129869983,1cyclictest6010-21diskmemload10:16:460
129869981,6cyclictest0-21swapper/009:20:490
129869981,1cyclictest14966-21telnet11:30:100
129869981,1cyclictest0-21swapper/011:48:290
129869981,1cyclictest0-21swapper/011:41:470
129869981,1cyclictest0-21swapper/011:28:440
129869981,1cyclictest0-21swapper/011:22:120
129869981,1cyclictest0-21swapper/011:17:360
129869981,1cyclictest0-21swapper/010:54:330
129869981,1cyclictest0-21swapper/010:44:540
129869981,1cyclictest0-21swapper/010:06:150
129869980,7cyclictest6267-21/usr/sbin/munin09:10:150
129869980,7cyclictest27939-21ssh10:20:150
8798270,1sleep20-21swapper/209:12:312
3156270,0sleep30-21swapper/310:30:183
130049975,1cyclictest17181-21ssh09:23:343
130049975,1cyclictest15308-21ssh10:45:453
130049975,1cyclictest11209-21ssh09:58:353
130049974,2cyclictest6010-21diskmemload12:39:123
130049974,2cyclictest25858-21apt-get07:35:113
130049974,1cyclictest6010-21diskmemload12:27:353
130049973,2cyclictest32326-21apt-get11:10:113
130049971,5cyclictest4513-21apt-get09:50:093
130049970,6cyclictest15796-21ssh10:05:103
130049970,6cyclictest11643-21ssh12:08:223
130049970,4cyclictest6010-21diskmemload10:26:063
129989976,1cyclictest61650irq/122-eno112:20:182
129989976,1cyclictest61650irq/122-eno111:10:132
129989976,1cyclictest61650irq/122-eno110:55:212
129989976,1cyclictest61650irq/122-eno110:15:102
129989976,1cyclictest28-21ksoftirqd/212:15:132
129989976,0cyclictest61650irq/122-eno110:50:002
129989975,1cyclictest6763-21cat10:35:152
129989975,1cyclictest61650irq/122-eno111:30:112
129989975,1cyclictest61650irq/122-eno107:55:112
129989975,1cyclictest28224-21ssh11:46:012
129989975,1cyclictest24694-21ssh11:41:412
129989975,1cyclictest2402-21ssh11:55:162
129989975,1cyclictest11754-21perf10:00:002
129989974,1cyclictest240-21systemd-journal08:15:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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