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2026-04-16 - 19:36
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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 rackcslot4.osadl.org (updated Thu Apr 16, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8044122267192,44sleep10-21swapper/107:09:281
8043342263190,58sleep00-21swapper/007:08:380
804595995514,11cyclictest852925-21diskmemload12:25:210
8884922520,3sleep00-21swapper/009:59:090
804595995212,10cyclictest899407-21python310:15:000
179699510,4rtkit-daemon1795-21rtkit-daemon09:30:480
179699510,4rtkit-daemon1795-21rtkit-daemon08:42:130
80459599509,10cyclictest872652-21sshd09:35:240
804595995016,10cyclictest852925-21diskmemload11:35:090
804595995012,13cyclictest929225-21sensors_temp10:55:260
804595995012,11cyclictest860334-21apt-get09:21:150
179699500,4rtkit-daemon1795-21rtkit-daemon07:21:510
179699500,4rtkit-daemon1795-21rtkit-daemon07:12:290
179699500,3rtkit-daemon1795-21rtkit-daemon12:06:210
179699500,3rtkit-daemon1795-21rtkit-daemon07:37:440
179699490,4rtkit-daemon1795-21rtkit-daemon12:31:481
179699490,4rtkit-daemon1795-21rtkit-daemon11:07:310
179699490,4rtkit-daemon1795-21rtkit-daemon10:40:020
179699490,4rtkit-daemon1795-21rtkit-daemon08:28:051
9525252480,4sleep10-21swapper/111:29:221
804595994815,11cyclictest852925-21diskmemload09:48:390
804595994815,11cyclictest852925-21diskmemload09:11:380
804595994815,10cyclictest852925-21diskmemload11:02:330
179699480,4rtkit-daemon1795-21rtkit-daemon11:10:030
179699480,4rtkit-daemon1795-21rtkit-daemon08:45:160
804595994715,11cyclictest852925-21diskmemload12:19:530
804595994715,10cyclictest852925-21diskmemload11:57:580
804595994715,10cyclictest852925-21diskmemload10:32:400
804595994712,21cyclictest959981-21apt-get11:40:150
804595994615,11cyclictest852925-21diskmemload12:10:380
804595994614,9cyclictest946446-21sh11:20:210
804595994614,11cyclictest955885-21ssh11:33:590
179699460,4rtkit-daemon1795-21rtkit-daemon08:18:001
804595994516,12cyclictest966458-21ssh11:49:050
804595994516,12cyclictest924676-21ssh10:50:120
804595994516,10cyclictest909912-21ssh10:29:180
804595994515,10cyclictest973924-21ssh12:00:050
804595994513,9cyclictest895111-21ssh10:07:550
804595994513,11cyclictest915549-21seq10:36:140
804595994511,9cyclictest850-21runrttasks11:50:230
179699450,3rtkit-daemon1795-21rtkit-daemon08:20:481
80459599449,21cyclictest882101-21apt-get09:50:100
804595994415,10cyclictest852925-21diskmemload09:26:370
804595994414,13cyclictest826563-21seq08:03:470
804595994414,11cyclictest924286-21ssh10:49:390
804595994413,11cyclictest990193-21taskset12:23:040
804595994412,18cyclictest852925-21diskmemload10:04:210
804595994412,17cyclictest852925-21diskmemload12:37:230
804595994313,14cyclictest875809-21sed09:40:190
804595994312,14cyclictest840259-21sed08:35:250
804595994312,11cyclictest818353-21awk07:40:230
804595994311,8cyclictest994795-21df12:30:160
804595994311,10cyclictest943279-21sed11:15:230
804595994215,9cyclictest827520-21missed_timers08:05:210
804595994214,9cyclictest848896-21/usr/sbin/munin09:00:170
804595994214,10cyclictest824394-21seq07:56:400
804595994214,10cyclictest820438-21seq07:46:030
804595994213,11cyclictest951169-21taskset11:26:060
804595994211,14cyclictest848002-21sed08:55:230
804595994211,12cyclictest833073-21seq08:20:150
804595994211,11cyclictest904004-21ssh10:20:180
804595994211,11cyclictest899967-21expr10:15:140
804595994211,11cyclictest838139-21sed08:30:250
804595994211,11cyclictest821118-21grep07:50:140
804595994113,11cyclictest807249-21seq07:15:080
804595994112,13cyclictest835232-21ls08:25:140
804595994112,11cyclictest829003-21ls08:10:140
804595994013,15cyclictest858614-21ssh09:16:130
804595994013,10cyclictest844981-21/usr/sbin/munin08:50:190
804595994011,9cyclictest853025-21cut09:10:000
804595994010,8cyclictest815012-21latency_hist07:35:010
804595993910,9cyclictest813047-21latency_hist07:30:000
80459599389,18cyclictest0-21swapper/008:15:080
179699370,8rtkit-daemon852925-21diskmemload09:43:121
179699360,3rtkit-daemon0-21swapper/008:03:281
179699340,4rtkit-daemon1795-21rtkit-daemon11:47:361
179699340,3rtkit-daemon0-21swapper/008:09:491
179699340,3rtkit-daemon0-21swapper/007:22:411
179699330,3rtkit-daemon0-21swapper/009:14:271
179699320,5rtkit-daemon887880-21ssh09:57:341
179699320,4rtkit-daemon1795-21rtkit-daemon09:07:061
179699320,3rtkit-daemon0-21swapper/012:00:521
179699320,3rtkit-daemon0-21swapper/010:47:151
804600993116,3cyclictest284-20systemd-journal09:04:561
179699310,4rtkit-daemon909462-21ssh10:28:041
179699310,3rtkit-daemon0-21swapper/010:13:021
179699310,3rtkit-daemon0-21swapper/010:00:031
179699310,3rtkit-daemon0-21swapper/009:51:501
179699310,3rtkit-daemon0-21swapper/009:37:041
804600993027,2cyclictest66950irq/132-enp2s011:00:351
179699300,3rtkit-daemon0-21swapper/012:22:361
179699300,3rtkit-daemon0-21swapper/012:13:071
804600992920,7cyclictest955905-21ssh11:34:021
179699290,3rtkit-daemon0-21swapper/010:18:391
179699290,3rtkit-daemon0-21swapper/009:18:001
179699290,3rtkit-daemon0-21swapper/008:37:141
179699290,3rtkit-daemon0-21swapper/007:57:481
179699290,3rtkit-daemon0-21swapper/007:25:391
179699290,3rtkit-daemon0-21swapper/007:16:361
9136392280,4chrt913638-21ssh10:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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