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2026-01-05 - 10:24
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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 rackdslot1.osadl.org (updated Mon Jan 05, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69321610,6sleep31969199cyclictest23:05:253
174782670,6sleep11968999cyclictest22:30:291
134491650,4ptp4l2131-21meminfo19:40:231
181552640,5sleep11968999cyclictest21:25:141
134491590,4ptp4l23215-21memory20:25:221
134491590,4ptp4l0-21swapper/000:37:190
134491590,3ptp4l31010-21idleruntime-cro19:35:011
134491590,18ptp4l6282-21apt-get21:00:131
134491590,18ptp4l6282-21apt-get21:00:131
134491580,4ptp4l0-21swapper/023:40:300
134491570,3ptp4l0-21swapper/223:15:242
134491570,3ptp4l0-21swapper/123:27:181
134491560,3ptp4l0-21swapper/122:30:001
134491560,17ptp4l0-21swapper/122:03:221
134491550,3ptp4l0-21swapper/122:06:231
134491550,3ptp4l0-21swapper/100:20:281
134491550,3ptp4l0-21swapper/020:10:330
134491550,16ptp4l0-21swapper/123:10:201
134491540,3ptp4l0-21swapper/219:50:492
134491540,3ptp4l0-21swapper/200:38:362
134491530,3ptp4l8287-21cpuspeed_turbos19:55:161
134491530,3ptp4l21115-21phc2sys20:20:261
134491530,3ptp4l0-21swapper/223:20:032
134491530,3ptp4l0-21swapper/221:55:382
134491530,3ptp4l0-21swapper/122:17:181
134491530,12ptp4l0-21swapper/121:52:391
134491520,3ptp4l0-21swapper/000:30:170
134491520,13ptp4l0-21swapper/120:49:491
134491520,10ptp4l18695-21python19:05:251
134491510,4ptp4l0-21swapper/123:47:061
134491510,4ptp4l0-21swapper/022:21:570
134491510,3ptp4l0-21swapper/122:45:091
134491510,3ptp4l0-21swapper/121:45:291
134491510,3ptp4l0-21swapper/022:35:220
134491500,4ptp4l0-21swapper/122:13:501
134491500,4ptp4l0-21swapper/119:39:141
134491500,4ptp4l0-21swapper/020:38:100
134491490,4ptp4l0-21swapper/319:13:293
134491490,4ptp4l0-21swapper/222:34:362
134491490,4ptp4l0-21swapper/222:19:212
134491490,4ptp4l0-21swapper/123:16:031
134491490,4ptp4l0-21swapper/120:06:591
134491490,4ptp4l0-21swapper/119:28:521
134491490,3ptp4l0-21swapper/121:23:201
134491490,3ptp4l0-21swapper/100:09:141
134491490,3ptp4l0-21swapper/023:20:300
134491490,3ptp4l0-21swapper/023:07:390
134491490,3ptp4l0-21swapper/019:18:360
134491480,4ptp4l0-21swapper/100:29:401
134491480,4ptp4l0-21swapper/023:02:080
134491480,4ptp4l0-21swapper/020:58:260
134491480,4ptp4l0-21swapper/019:21:070
134491480,3ptp4l0-21swapper/123:09:181
134491480,3ptp4l0-21swapper/122:55:341
134491480,3ptp4l0-21swapper/121:13:211
134491470,4ptp4l0-21swapper/300:37:503
134491470,4ptp4l0-21swapper/123:22:281
134491470,4ptp4l0-21swapper/122:23:551
134491470,4ptp4l0-21swapper/121:42:061
134491470,4ptp4l0-21swapper/121:36:571
134491470,4ptp4l0-21swapper/121:34:261
134491470,4ptp4l0-21swapper/021:31:420
134491470,4ptp4l0-21swapper/019:49:530
134491470,3ptp4l0-21swapper/221:26:582
134491460,4ptp4l0-21swapper/323:40:363
134491460,4ptp4l0-21swapper/219:39:092
134491460,4ptp4l0-21swapper/122:41:111
134491460,3ptp4l0-21swapper/320:56:103
134491460,11ptp4l0-21swapper/021:37:280
19691994540,3cyclictest41-21ksoftirqd/321:40:013
134491450,4ptp4l0-21swapper/123:56:161
134491450,4ptp4l0-21swapper/121:17:061
134491450,3ptp4l121rcu_preempt20:39:161
134491450,3ptp4l0-21swapper/119:24:491
134491450,3ptp4l0-21swapper/022:50:250
134491450,13ptp4l9-21ksoftirqd/019:29:330
134491450,10ptp4l101ktimersoftd/000:10:180
134491440,3ptp4l0-21swapper/219:13:312
134491440,3ptp4l0-21swapper/120:50:581
134491440,3ptp4l0-21swapper/100:19:321
134491430,9ptp4l0-21swapper/022:18:210
134491430,4ptp4l0-21swapper/319:41:503
134491430,4ptp4l0-21swapper/200:13:052
134491430,3ptp4l0-21swapper/021:05:330
134491430,3ptp4l0-21swapper/019:32:220
134491420,5ptp4l0-21swapper/321:10:163
134491420,5ptp4l0-21swapper/019:05:130
134491420,4ptp4l29187-21apt-get20:40:130
134491420,4ptp4l13188-21apt-get21:15:130
134491420,4ptp4l0-21swapper/120:17:381
134491420,3ptp4l0-21swapper/223:04:472
134491420,3ptp4l0-21swapper/219:46:592
19690994135,4cyclictest33-21ksoftirqd/222:06:512
134491410,5ptp4l11454-21iostat21:10:192
134491410,5ptp4l0-21swapper/323:30:233
134491410,5ptp4l0-21swapper/200:15:212
134491410,5ptp4l0-21swapper/121:55:251
134491410,5ptp4l0-21swapper/019:10:120
134491410,4ptp4l9609-21ls21:05:272
134491410,4ptp4l4250-21apt-get23:15:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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