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2026-05-14 - 18:23
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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 Thu May 14, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482523690,7sleep30-21swapper/307:05:213
253132213155,25sleep00-21swapper/007:06:320
252512199161,24sleep20-21swapper/207:05:442
252622198159,26sleep10-21swapper/107:05:521
164492580,0sleep20-21swapper/211:57:252
105582190,0sleep10-21swapper/109:40:161
241922160,0sleep10-21swapper/112:08:101
137532150,0sleep013756-21fschecks_count07:50:140
2566399140,2cyclictest0-21swapper/010:00:000
211472140,0sleep335-21ksoftirqd/312:05:003
25678991311,1cyclictest28-21ksoftirqd/207:59:592
25663991313,0cyclictest0-21swapper/012:07:220
2566399130,1cyclictest32696-21cut11:35:170
2566399130,1cyclictest0-21swapper/011:50:160
2566399130,0cyclictest0-21swapper/011:22:530
25678991211,1cyclictest0-21swapper/210:45:182
2567199120,12cyclictest0-21swapper/109:55:121
2566399120,2cyclictest0-21swapper/007:25:140
2566399120,1cyclictest0-21swapper/009:34:190
2566399120,1cyclictest0-21swapper/007:15:140
2568599119,1cyclictest35-21ksoftirqd/310:20:133
2568599118,1cyclictest35-21ksoftirqd/309:20:003
2566399114,6cyclictest18506-21diskmemload10:56:170
2566399113,7cyclictest13902-21ssh11:55:100
2566399112,1cyclictest32697-21cstates10:10:130
2566399112,0cyclictest18506-21diskmemload11:08:280
2566399111,1cyclictest8440-21perf11:05:000
2566399110,2cyclictest30196-21ls12:15:170
2566399110,1cyclictest18506-21diskmemload11:16:460
2566399110,1cyclictest0-21swapper/008:05:180
2566399110,1cyclictest0-21swapper/008:05:180
2566399110,1cyclictest0-21swapper/007:45:100
2566399110,0cyclictest18506-21diskmemload11:32:110
2566399110,0cyclictest18506-21diskmemload10:02:070
69492100,0sleep30-21swapper/312:28:353
29172100,0sleep20-21swapper/212:22:472
2567899103,4cyclictest61650irq/122-eno110:50:122
2567199108,1cyclictest0-21swapper/112:30:081
2566399106,4cyclictest8197-21ssh09:36:270
2566399106,4cyclictest21654-21ssh10:38:470
2566399104,5cyclictest12659-21/usr/sbin/munin11:10:120
2566399103,0cyclictest18506-21diskmemload09:43:540
2566399102,8cyclictest0-21swapper/012:35:000
2566399102,0cyclictest18506-21diskmemload10:31:260
2566399102,0cyclictest18506-21diskmemload09:54:220
2566399102,0cyclictest18506-21diskmemload09:49:050
2566399102,0cyclictest18506-21diskmemload09:49:050
2566399101,2cyclictest240-21systemd-journal09:15:000
2566399101,1cyclictest255102chrt09:18:000
2566399101,0cyclictest18506-21diskmemload09:24:070
2566399100,7cyclictest19773-1kworker/u9:112:02:410
2566399100,2cyclictest240-21systemd-journal10:24:590
2566399100,1cyclictest240-21systemd-journal10:54:590
2566399100,1cyclictest240-21systemd-journal09:08:140
2566399100,1cyclictest0-21swapper/011:45:180
2566399100,1cyclictest0-21swapper/010:08:560
2566399100,1cyclictest0-21swapper/008:40:170
2566399100,0cyclictest11186-21apt-get10:25:120
256859998,1cyclictest35-21ksoftirqd/309:15:013
256859997,1cyclictest35-21ksoftirqd/309:05:003
256859991,6cyclictest30279-21kworker/u8:212:22:353
256859991,5cyclictest240-21systemd-journal10:30:153
256789990,6cyclictest10186-21apt-get11:50:102
256789990,5cyclictest14687-21runrttasks12:39:212
256639993,5cyclictest583-21in:imuxsock07:35:000
256639993,5cyclictest26016-21ssh11:26:140
256639991,7cyclictest18506-21diskmemload12:10:060
256639991,1cyclictest5722-21ssh11:43:470
256639991,1cyclictest240-21systemd-journal08:23:580
256639990,8cyclictest3688-21ssh10:15:110
256639990,8cyclictest0-21swapper/007:20:150
256639990,4cyclictest25866-21/usr/sbin/munin07:10:200
256639990,4cyclictest22402-21ssh10:40:110
256639990,1cyclictest240-21systemd-journal08:50:000
256859980,5cyclictest31032-1kworker/u9:010:10:183
256859980,4cyclictest0-21swapper/310:05:083
256859980,3cyclictest0-21swapper/309:40:383
256859980,2cyclictest0-21swapper/309:48:343
256859980,2cyclictest0-21swapper/309:48:333
256789986,1cyclictest61650irq/122-eno112:14:382
256789986,1cyclictest61650irq/122-eno111:30:012
256789986,1cyclictest61650irq/122-eno107:15:202
256789986,1cyclictest1747-21ntpd10:15:592
256789986,1cyclictest1747-21ntpd07:50:592
256789983,2cyclictest240-21systemd-journal10:10:002
256789980,4cyclictest17684-21apt-get12:00:122
256719988,0cyclictest0-21swapper/107:40:151
256639981,1cyclictest240-21systemd-journal08:28:270
256639981,1cyclictest0-21swapper/009:25:170
256639980,7cyclictest309-21perl08:30:130
256639980,5cyclictest15563-21/usr/sbin/munin07:55:140
256639980,3cyclictest0-21swapper/012:35:150
256639980,3cyclictest0-21swapper/012:28:020
256639980,2cyclictest240-21systemd-journal08:52:280
256639980,1cyclictest240-21systemd-journal10:46:310
256639980,1cyclictest240-21systemd-journal09:03:440
256639980,1cyclictest240-21systemd-journal08:59:420
256639980,1cyclictest240-21systemd-journal08:17:000
256639980,1cyclictest240-21systemd-journal08:13:570
256639980,1cyclictest240-21systemd-journal07:44:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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