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2026-05-02 - 12:59
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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 rack6slot0.osadl.org (updated Sat May 02, 2026 01:00:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4017992641,3cyclictest0-21swapper/900:30:1439
4017992641,3cyclictest0-21swapper/900:30:1439
4017992441,2cyclictest0-21swapper/922:07:3539
4017992441,2cyclictest0-21swapper/922:07:3439
4017992440,3cyclictest3600-21qemu-system-x8622:04:2039
4017992440,3cyclictest3600-21qemu-system-x8622:04:1939
4017992422,237cyclictest0-21swapper/923:24:3139
4017992422,237cyclictest0-21swapper/923:24:3139
4017992411,5cyclictest3535-21qemu-system-x8622:27:4039
4017992411,5cyclictest3535-21qemu-system-x8622:27:4039
4017992411,236cyclictest0-21swapper/900:40:0139
4017992411,236cyclictest0-21swapper/900:40:0139
4017992411,236cyclictest0-21swapper/900:40:0139
4017992371,232cyclictest0-21swapper/922:22:5639
4017992371,232cyclictest0-21swapper/922:22:5639
4017992331,227cyclictest0-21swapper/922:35:4239
4017992331,227cyclictest0-21swapper/922:35:4239
4017992301,225cyclictest0-21swapper/900:29:1939
4017992301,225cyclictest0-21swapper/900:29:1939
4017992281,223cyclictest0-21swapper/923:55:0239
4017992281,223cyclictest0-21swapper/923:55:0239
404399226190,10cyclictest0-21swapper/3122:28:0925
404399226190,10cyclictest0-21swapper/3122:28:0925
4017992261,2cyclictest0-21swapper/923:35:1639
4017992261,2cyclictest0-21swapper/923:35:1639
4017992260,5cyclictest6402-21systemd22:50:1339
4017992260,5cyclictest6402-21systemd22:50:1239
4017992260,3cyclictest4398-21qemu-system-x8622:40:1039
4017992260,3cyclictest4398-21qemu-system-x8622:40:1039
4017992231,3cyclictest0-21swapper/923:08:2739
4017992231,3cyclictest0-21swapper/923:08:2739
4017992231,2cyclictest0-21swapper/922:18:0439
4017992231,2cyclictest0-21swapper/922:18:0439
4017992221,4cyclictest755-21systemd-journal22:14:3539
4017992221,4cyclictest755-21systemd-journal22:14:3539
4017992212,214cyclictest2447-21CPU39
4017992212,214cyclictest2447-21CPU39
4017992211,4cyclictest15544-21cp22:31:4039
4017992211,4cyclictest15544-21cp22:31:4039
4017992210,3cyclictest142050irq/42-eno1-TxRx-023:42:5239
4017992210,3cyclictest142050irq/42-eno1-TxRx-023:42:5239
4017992204,213cyclictest0-21swapper/923:46:0339
4017992204,213cyclictest0-21swapper/923:46:0339
4017992200,4cyclictest34527-21cat21:55:0439
4017992200,4cyclictest34527-21cat21:55:0439
4017992200,4cyclictest1-21systemd23:31:3139
4017992200,4cyclictest1-21systemd23:31:3139
4017992191,3cyclictest0-21swapper/923:02:5739
4017992191,3cyclictest0-21swapper/923:02:5739
4017992191,3cyclictest0-21swapper/921:55:4739
4017992191,3cyclictest0-21swapper/921:55:4739
4017992191,2cyclictest1-21systemd00:23:4539
4017992191,2cyclictest1-21systemd00:23:4539
4017992191,215cyclictest0-21swapper/923:17:2539
4017992191,215cyclictest0-21swapper/923:17:2539
4017992181,3cyclictest0-21swapper/923:10:1839
4017992181,3cyclictest0-21swapper/923:10:1839
4017992181,2cyclictest0-21swapper/923:57:2439
4017992181,2cyclictest0-21swapper/923:57:2439
401399218191,18cyclictest0-21swapper/521:45:5935
401399218191,18cyclictest0-21swapper/521:45:5935
4017992162,5cyclictest2461-21CPU39
4017992162,5cyclictest2461-21CPU39
4017992161,4cyclictest27473-21systemd00:05:2739
4017992161,4cyclictest27473-21systemd00:05:2639
4017992161,4cyclictest27473-21systemd00:05:2639
4017992142,3cyclictest3544-21CPU39
4017992142,3cyclictest3544-21CPU39
4017992141,3cyclictest0-21swapper/922:55:3539
4017992141,3cyclictest0-21swapper/922:55:3539
4017992141,2cyclictest0-21swapper/900:05:0139
4017992141,2cyclictest0-21swapper/900:05:0039
4017992131,2cyclictest0-21swapper/923:27:1439
4017992131,2cyclictest0-21swapper/923:27:1339
404199211195,12cyclictest0-21swapper/2921:18:1222
404199211195,12cyclictest0-21swapper/2921:18:1222
401399205181,21cyclictest0-21swapper/522:11:0235
401399205181,21cyclictest0-21swapper/522:11:0235
404499203190,8cyclictest0-21swapper/3222:37:3226
404499203190,8cyclictest0-21swapper/3222:37:3126
401399202172,26cyclictest0-21swapper/522:08:0235
401399202172,26cyclictest0-21swapper/522:08:0135
401499201194,3cyclictest4407-21CPU36
404199199165,29cyclictest3610-21CPU22
404199199165,29cyclictest3610-21CPU22
404399198184,11cyclictest0-21swapper/3119:15:1125
401499198184,12cyclictest0-21swapper/623:52:3436
401499198184,12cyclictest0-21swapper/623:52:3336
405199194179,9cyclictest0-21swapper/3819:35:1732
405199194179,9cyclictest0-21swapper/3819:35:1732
403699194183,8cyclictest0-21swapper/2421:21:2317
403699194183,8cyclictest0-21swapper/2421:21:2317
401499194184,8cyclictest0-21swapper/623:31:0236
401499194184,8cyclictest0-21swapper/623:31:0236
4017991931,2cyclictest0-21swapper/921:25:0139
4017991931,2cyclictest0-21swapper/921:25:0139
401399193172,17cyclictest0-21swapper/519:40:3135
401399193172,17cyclictest0-21swapper/519:40:3135
404199191181,7cyclictest37257-21qemu-system-x8621:28:3222
404199191181,7cyclictest37257-21qemu-system-x8621:28:3122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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