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2026-06-17 - 08:53
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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 Wed Jun 17, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
963999780,33cyclictest9821-21sshd22:36:322
963999750,35cyclictest11925-21chrt21:31:012
963999750,34cyclictest408-21chrt23:26:072
963999741,34cyclictest19356-21chrt00:08:382
963999741,34cyclictest19356-21chrt00:08:382
963999730,33cyclictest18754-21chrt20:37:012
963999720,36cyclictest31618-21chrt00:35:112
963999720,33cyclictest3268-21chrt23:34:052
963999720,32cyclictest23799-21taskset21:57:172
963999720,32cyclictest16885-21chrt22:53:332
963999710,31cyclictest30801-21taskset23:24:022
963999710,31cyclictest17110-21taskset00:04:172
963999710,30cyclictest19273-21taskset21:48:502
963999700,33cyclictest14585-21chrt22:48:282
963999691,31cyclictest20900-21chrt19:34:472
963999690,34cyclictest5372-21chrt22:28:262
963999690,32cyclictest27803-21chrt19:46:142
963999681,35cyclictest14388-21taskset21:38:032
963999680,36cyclictest9413-21chrt20:18:042
963999680,36cyclictest21823-21chrt00:13:172
963999680,33cyclictest12332-21chrt23:52:102
963999680,30cyclictest14661-21taskset23:57:352
963999671,29cyclictest2597-21taskset20:04:072
963999671,29cyclictest12348-21chrt22:44:152
963999670,36cyclictest16110-21chrt19:22:152
963999670,31cyclictest26476-21chrt00:23:442
963999670,31cyclictest13738-21chrt19:16:342
963999670,30cyclictest5022-21chrt21:16:132
963999670,30cyclictest19096-21chrt22:57:262
963999670,29cyclictest23647-21taskset20:47:112
963999661,30cyclictest7635-21taskset22:33:032
963999660,36cyclictest25536-21chrt19:41:372
963999660,31cyclictest2847-21chrt22:20:362
963999660,30cyclictest7633-21taskset23:40:592
963999660,30cyclictest32625-21chrt19:59:102
963999660,30cyclictest16794-21taskset21:44:132
963999660,29cyclictest21464-21chrt21:52:312
963999652,34cyclictest9699-21chrt21:26:482
963999651,36cyclictest11658-21taskset19:14:212
963999650,36cyclictest5191-21chrt20:10:012
963999650,36cyclictest25963-21chrt23:11:142
963999650,36cyclictest25963-21chrt23:11:142
963999650,35cyclictest28462-21taskset23:18:452
963999650,32cyclictest26288-21chrt22:04:312
963999650,31cyclictest31310-21chrt00:34:072
963999650,31cyclictest28587-21chrt22:09:322
963999650,31cyclictest23191-21taskset19:39:442
963999650,30cyclictest565-21taskset22:17:142
963999650,30cyclictest4696-21taskset20:06:322
197982650,3sleep30-21swapper/300:10:013
197982650,3sleep30-21swapper/300:10:013
963999640,36cyclictest30041-21chrt19:50:362
963999640,36cyclictest30041-21chrt19:50:362
963999640,35cyclictest30487-21chrt21:01:202
963999640,35cyclictest23791-21chrt23:07:452
963999640,32cyclictest9989-21taskset23:46:372
963999640,30cyclictest21544-21chrt23:04:072
963999640,29cyclictest28569-21taskset00:26:122
134491640,4ptp4l0-21swapper/123:50:231
134491630,4ptp4l29175-21df_inode22:10:121
963999620,35cyclictest7438-21chrt21:22:222
963999620,35cyclictest5426-21taskset23:37:172
963999620,30cyclictest2670-21chrt21:10:312
963999620,30cyclictest16445-21taskset20:31:512
963799627,12cyclictest134491ptp4l21:00:100
963999610,35cyclictest28166-21chrt20:56:152
963999610,31cyclictest25987-21chrt20:52:462
963999610,31cyclictest25987-21chrt20:52:462
963799609,10cyclictest31606-21wc19:55:210
134491600,20ptp4l22198-21hddtemp_smartct20:45:161
134491600,19ptp4l0-21swapper/123:05:201
9637995912,44cyclictest22518-21chrt00:15:150
963999580,28cyclictest11638-21chrt20:21:492
134491580,4ptp4l0-21swapper/123:27:051
134491580,4ptp4l0-21swapper/121:20:201
963999570,30cyclictest24122-21chrt00:18:142
134491570,5ptp4l0-21swapper/020:15:160
134491570,4ptp4l0-21swapper/119:40:361
134491570,4ptp4l0-21swapper/119:18:091
134491570,3ptp4l0-21swapper/023:50:230
134491570,3ptp4l0-21swapper/019:50:470
134491570,3ptp4l0-21swapper/019:50:470
963799569,11cyclictest989-21cat21:10:130
134491550,5ptp4l0-21swapper/120:08:461
134491550,4ptp4l0-21swapper/120:33:441
134491550,4ptp4l0-21swapper/100:08:181
134491550,4ptp4l0-21swapper/100:08:181
134491550,3ptp4l0-21swapper/020:10:160
134491540,4ptp4l0-21swapper/120:20:291
134491540,3ptp4l0-21swapper/122:05:201
963799536,10cyclictest5731-21/usr/sbin/munin22:30:180
134491530,4ptp4l0-21swapper/322:25:543
134491530,4ptp4l0-21swapper/123:40:261
134491530,4ptp4l0-21swapper/121:34:421
134491530,4ptp4l0-21swapper/120:35:241
134491530,4ptp4l0-21swapper/119:28:491
134491530,4ptp4l0-21swapper/100:15:571
134491530,3ptp4l3283-21apt-get21:15:131
134491530,3ptp4l0-21swapper/321:50:013
134491530,3ptp4l0-21swapper/119:32:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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