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2025-08-28 - 22:29
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Thu Aug 28, 2025 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19836993028,1cyclictest0-21swapper/107:30:141
1983599274,14cyclictest27996-21munin-run12:10:000
19836992314,0cyclictest0-21swapper/109:10:041
19836992314,0cyclictest0-21swapper/109:10:031
1983699230,5cyclictest0-21swapper/110:38:061
1983599231,18cyclictest9-21ksoftirqd/008:04:270
1983599230,5cyclictest0-21swapper/009:40:150
1983599213,17cyclictest29804-21savelog08:25:010
19835992119,1cyclictest9-21ksoftirqd/010:36:050
19835992113,4cyclictest0-21swapper/012:31:140
1983699205,1cyclictest21-21ksoftirqd/109:20:131
19835992017,2cyclictest4538-21H212:26:330
19835992017,2cyclictest26801-21mii-tool09:15:160
1983799197,11cyclictest0-21swapper/211:41:052
1983799190,2cyclictest4593-21H212:26:332
1983799190,2cyclictest4532-21H212:26:332
1983799190,1cyclictest0-21swapper/207:50:442
1983799190,18cyclictest24035-21ntp_kernel_err12:00:182
1983799190,16cyclictest4593-21H212:26:332
1983799190,15cyclictest0-21swapper/211:26:292
1983699193,15cyclictest21-21ksoftirqd/110:58:531
1983699192,16cyclictest3913-21grep10:30:111
1983699192,16cyclictest12295-21missed_timers11:40:181
19836991916,2cyclictest4581-21H212:26:331
1983699190,1cyclictest21-21ksoftirqd/108:50:421
1983599194,1cyclictest0-21swapper/012:24:560
1983599192,16cyclictest29964-21perf10:20:000
19835991917,1cyclictest9-21ksoftirqd/009:58:370
19835991917,1cyclictest9-21ksoftirqd/008:58:290
19835991917,1cyclictest101rcuc/008:40:280
19835991917,1cyclictest0-21swapper/010:07:540
19835991914,4cyclictest31328-21kernelversion10:20:170
19835991914,2cyclictest4581-21H212:26:330
1983599190,5cyclictest9-21ksoftirqd/008:51:470
1983599190,2cyclictest4593-21H212:26:330
1983599190,2cyclictest4534-21H212:26:330
1983599190,2cyclictest4534-21H212:26:330
1983599190,16cyclictest4534-21H212:26:330
1983799183,1cyclictest0-21swapper/209:15:022
1983799182,15cyclictest4528-21H212:26:332
1983799182,15cyclictest4528-21H212:26:332
19837991816,1cyclictest28-21ksoftirqd/212:28:502
19837991816,1cyclictest0-21swapper/208:25:152
19837991815,2cyclictest20753-21cut07:10:162
19837991814,2cyclictest8067-21proc_pri10:35:192
19837991814,2cyclictest4593-21H212:26:332
19837991814,2cyclictest4593-21H212:26:332
1983799180,2cyclictest4581-21H212:26:332
1983799180,17cyclictest4536-21H212:26:332
1983799180,17cyclictest28925-21cut10:15:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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