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2026-07-10 - 06:26
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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 Fri Jul 10, 2026 00:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4022992421,2cyclictest20930-21grep23:25:181
4022992421,2cyclictest20930-21grep23:25:171
402999230,5cyclictest0-21swapper/221:47:032
402999230,5cyclictest0-21swapper/221:47:032
402299236,13cyclictest0-21swapper/100:14:091
402999220,4cyclictest0-21swapper/220:35:162
402999220,18cyclictest0-21swapper/220:55:152
402299210,17cyclictest0-21swapper/120:13:081
4029992018,1cyclictest0-21swapper/221:06:582
4029992017,2cyclictest30956-21tr22:45:202
4022992018,1cyclictest21-21ksoftirqd/119:31:501
402199202,2cyclictest28105-21cpuspeed_turbos23:40:140
4021992015,3cyclictest6684-21grep19:15:000
402999193,2cyclictest3981-21H222:10:212
402999192,16cyclictest3989-21H222:10:212
402999192,16cyclictest3983-21H222:10:212
402999192,16cyclictest10075-21cut19:20:122
402999192,16cyclictest0-21swapper/223:09:142
402999190,16cyclictest3983-21H222:10:212
402999190,16cyclictest3983-21H222:10:212
402999190,16cyclictest3981-21H222:10:212
402999190,16cyclictest3981-21H222:10:212
402999190,16cyclictest3976-21H222:10:212
402299193,15cyclictest28075-21timerandwakeup00:35:231
402299193,15cyclictest0-21swapper/120:55:181
402299193,15cyclictest0-21swapper/120:24:521
402299192,16cyclictest11044-21nfsd419:20:181
402299192,15cyclictest3976-21H222:10:211
4022991915,2cyclictest17796-21cut21:25:211
402299190,18cyclictest9022-21http_loadtime21:10:131
402299190,18cyclictest0-21swapper/123:30:021
402299190,17cyclictest0-21swapper/123:59:571
4021991917,1cyclictest0-21swapper/022:50:210
4021991916,2cyclictest4099-21H222:10:210
4021991916,2cyclictest3979-21H222:10:210
4021991916,2cyclictest1100-21snmpd00:23:300
4021991915,3cyclictest7254-21fschecks_time22:05:150
402199190,2cyclictest3985-21H222:10:210
402199190,18cyclictest0-21swapper/022:55:150
402199190,16cyclictest3991-21H222:10:210
402199190,16cyclictest3983-21H222:10:210
402999182,2cyclictest28084-21expr23:40:132
402999182,15cyclictest0-21swapper/223:15:252
4029991816,1cyclictest0-21swapper/223:50:052
4029991816,1cyclictest0-21swapper/223:50:042
4029991816,1cyclictest0-21swapper/223:45:102
4029991816,1cyclictest0-21swapper/222:18:422
4029991815,2cyclictest4856-21ntp_kernel_pll_20:05:192
4029991815,2cyclictest3985-21H222:10:212
4029991815,2cyclictest19142-21wc21:30:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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