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2026-06-16 - 05:54
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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 Tue Jun 16, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2905121600,6sleep01383299cyclictest19:40:210
2248121410,5sleep30-21swapper/320:35:243
134491640,3ptp4l14626-21/usr/sbin/munin22:40:161
134491630,4ptp4l0-21swapper/220:42:072
122722620,1sleep112274-21sh22:35:011
134491610,3ptp4l7928-21hddtemp_smartct21:15:170
203162600,5sleep10-21swapper/122:50:221
134491600,5ptp4l0-21swapper/020:15:220
134491600,4ptp4l0-21swapper/019:08:180
134491590,4ptp4l0-21swapper/022:10:230
134491580,4ptp4l0-21swapper/022:40:230
134491580,3ptp4l15236-21memory20:20:222
134491580,3ptp4l0-21swapper/022:27:230
134491570,4ptp4l11694-21seq21:22:513
134491570,4ptp4l0-21swapper/120:14:321
134491560,4ptp4l941-21irqstats19:50:181
134491560,3ptp4l5011-21apt-get20:00:140
134491560,3ptp4l5011-21apt-get20:00:140
134491560,3ptp4l27388-21ntp_states00:15:230
134491560,3ptp4l0-21swapper/022:15:270
134491560,3ptp4l0-21swapper/021:20:160
134491560,17ptp4l0-21swapper/019:20:270
134491540,3ptp4l0-21swapper/121:05:261
134491540,3ptp4l0-21swapper/022:58:470
168972530,5sleep10-21swapper/120:25:151
134491530,4ptp4l0-21swapper/020:30:260
134491530,4ptp4l0-21swapper/020:30:260
134491530,4ptp4l0-21swapper/000:31:590
134491530,3ptp4l0-21swapper/121:13:061
134491520,4ptp4l0-21swapper/019:25:570
134491520,3ptp4l0-21swapper/023:50:240
134491500,5ptp4l33-21ksoftirqd/219:57:032
134491500,5ptp4l0-21swapper/119:09:551
134491500,4ptp4l0-21swapper/322:16:443
134491500,4ptp4l0-21swapper/322:01:103
134491500,4ptp4l0-21swapper/222:49:202
134491500,4ptp4l0-21swapper/123:50:071
134491500,3ptp4l0-21swapper/019:39:380
134491500,10ptp4l0-21swapper/022:50:270
134491490,4ptp4l0-21swapper/220:47:312
134491490,4ptp4l0-21swapper/121:53:281
134491490,4ptp4l0-21swapper/119:35:301
134491490,4ptp4l0-21swapper/119:11:401
134491490,4ptp4l0-21swapper/100:24:151
134491490,4ptp4l0-21swapper/019:15:010
134491490,3ptp4l0-21swapper/000:00:300
89032480,1sleep18907-21timerandwakeup22:25:261
134491480,4ptp4l0-21swapper/123:01:131
134491480,4ptp4l0-21swapper/122:07:461
134491480,4ptp4l0-21swapper/121:33:031
134491480,4ptp4l0-21swapper/021:32:480
134491480,3ptp4l0-21swapper/220:33:052
134491480,3ptp4l0-21swapper/220:33:042
134491480,3ptp4l0-21swapper/123:55:211
134491480,13ptp4l0-21swapper/222:50:512
134491470,4ptp4l0-21swapper/223:11:312
134491470,4ptp4l0-21swapper/219:08:162
134491470,4ptp4l0-21swapper/121:45:531
134491470,4ptp4l0-21swapper/119:32:061
134491470,4ptp4l0-21swapper/119:32:061
134491470,4ptp4l0-21swapper/023:09:010
134491470,4ptp4l0-21swapper/022:08:310
134491470,4ptp4l0-21swapper/021:58:390
134491470,3ptp4l0-21swapper/320:40:133
134491470,3ptp4l0-21swapper/121:02:461
134491470,3ptp4l0-21swapper/022:31:170
134491470,3ptp4l0-21swapper/021:49:300
134491460,4ptp4l0-21swapper/319:08:133
134491460,4ptp4l0-21swapper/120:54:411
134491460,4ptp4l0-21swapper/021:53:330
134491460,4ptp4l0-21swapper/021:25:310
134491460,11ptp4l0-21swapper/223:26:322
134491450,5ptp4l0-21swapper/319:50:123
134491450,4ptp4l1383899cyclictest20:55:453
134491450,4ptp4l0-21swapper/121:57:201
134491450,4ptp4l0-21swapper/020:11:490
134491450,3ptp4l0-21swapper/020:40:260
134491450,12ptp4l0-21swapper/219:14:332
134491450,11ptp4l0-21swapper/223:17:382
134491450,10ptp4l0-21swapper/321:01:183
134491440,9ptp4l0-21swapper/223:50:502
134491440,5ptp4l0-21swapper/222:05:272
134491440,4ptp4l0-21swapper/100:35:481
134491440,3ptp4l0-21swapper/123:31:131
134491440,3ptp4l0-21swapper/023:20:140
134491440,3ptp4l0-21swapper/020:53:370
134491440,2ptp4l0-21swapper/322:53:243
134491440,11ptp4l2199migration/120:42:091
13834994338,3cyclictest25-21ksoftirqd/123:10:001
134491430,5ptp4l0-21swapper/323:05:133
134491430,5ptp4l0-21swapper/321:50:213
134491430,4ptp4l9906-21apt-get23:40:101
134491430,4ptp4l0-21swapper/219:21:342
134491430,3ptp4l6722-21ls22:20:271
134491430,3ptp4l17954-21ls22:45:211
134491430,3ptp4l0-21swapper/100:32:071
134491430,3ptp4l0-21swapper/022:35:220
134491430,11ptp4l0-21swapper/220:08:242
1383899420,5cyclictest15074-21sed21:30:183
134491420,9ptp4l0-21swapper/222:37:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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