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2026-04-01 - 09:25
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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 Mar 31, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176612700,5sleep00-21swapper/011:15:150
134491630,4ptp4l2318-21gnome-shell10:52:581
134491610,5ptp4l0-21swapper/210:10:172
134491610,3ptp4l0-21swapper/110:10:121
134491590,4ptp4l0-21swapper/210:20:062
134491570,4ptp4l15857-21ls12:20:193
134491570,3ptp4l8314-21/usr/sbin/munin12:05:152
134491570,3ptp4l23005-21ls07:55:282
134491570,3ptp4l0-21swapper/210:44:582
134491560,5ptp4l0-21swapper/209:04:402
297842540,4sleep10-21swapper/110:30:231
134491540,3ptp4l0-21swapper/007:10:410
134491530,3ptp4l0-21swapper/211:02:592
134491530,3ptp4l0-21swapper/208:30:382
134491530,3ptp4l0-21swapper/011:40:220
152242520,5sleep30-21swapper/308:50:163
134491520,4ptp4l0-21swapper/210:55:332
134491520,4ptp4l0-21swapper/112:27:271
134491520,4ptp4l0-21swapper/008:20:210
134491520,3ptp4l0-21swapper/310:40:143
134491520,3ptp4l0-21swapper/111:23:011
134491510,4ptp4l0-21swapper/311:34:473
134491510,4ptp4l0-21swapper/309:21:223
134491510,4ptp4l0-21swapper/309:21:223
134491510,4ptp4l0-21swapper/012:36:140
134491510,3ptp4l0-21swapper/210:04:552
134491500,4ptp4l0-21swapper/311:23:173
134491500,4ptp4l0-21swapper/310:12:473
134491500,4ptp4l0-21swapper/212:22:242
134491500,4ptp4l0-21swapper/208:24:162
134491500,4ptp4l0-21swapper/111:59:261
134491500,4ptp4l0-21swapper/111:08:311
134491500,4ptp4l0-21swapper/110:58:411
134491500,3ptp4l0-21swapper/211:09:282
134491500,3ptp4l0-21swapper/210:48:072
134491500,11ptp4l0-21swapper/211:51:382
134491490,5ptp4l0-21swapper/007:09:560
134491490,4ptp4l0-21swapper/207:40:392
134491490,4ptp4l0-21swapper/109:01:031
134491490,4ptp4l0-21swapper/107:38:071
134491490,4ptp4l0-21swapper/107:38:071
134491490,4ptp4l0-21swapper/009:48:250
134491490,4ptp4l0-21swapper/008:37:050
134491490,3ptp4l0-21swapper/209:59:442
134491490,3ptp4l0-21swapper/111:04:181
134691480,4getstats0-21swapper/008:30:290
134491480,9ptp4l0-21swapper/207:05:212
134491480,5ptp4l0-21swapper/107:09:561
134491480,4ptp4l0-21swapper/311:11:563
134491480,4ptp4l0-21swapper/307:26:063
134491480,4ptp4l0-21swapper/207:27:342
134491480,4ptp4l0-21swapper/111:13:131
134491480,4ptp4l0-21swapper/012:00:250
134491480,3ptp4l0-21swapper/211:45:132
134491480,3ptp4l0-21swapper/208:26:512
134491480,3ptp4l0-21swapper/207:18:532
221432470,3sleep2321ktimersoftd/212:35:122
134491470,4ptp4l53499cyclictest07:37:530
134491470,4ptp4l53499cyclictest07:37:530
134491470,4ptp4l0-21swapper/310:56:133
134491470,4ptp4l0-21swapper/310:46:353
134491470,4ptp4l0-21swapper/212:15:192
134491470,4ptp4l0-21swapper/209:53:042
134491470,4ptp4l0-21swapper/208:35:452
134491470,4ptp4l0-21swapper/207:50:212
134491470,4ptp4l0-21swapper/112:18:411
134491470,4ptp4l0-21swapper/112:14:571
134491470,4ptp4l0-21swapper/011:47:510
134491470,3ptp4l0-21swapper/211:40:262
134491470,3ptp4l0-21swapper/207:45:252
134491460,4ptp4l570-21apt-get07:10:103
134491460,4ptp4l53499cyclictest07:58:200
134491460,4ptp4l0-21swapper/111:54:211
134491460,3ptp4l0-21swapper/212:10:252
134491460,3ptp4l0-21swapper/209:13:162
134491460,3ptp4l0-21swapper/108:33:151
134491460,12ptp4l16113-21open_inodes12:20:230
134491460,11ptp4l0-21swapper/308:44:293
134491450,7ptp4l0-21swapper/307:05:143
134491450,5ptp4l27388-21ls10:25:203
134491450,5ptp4l0-21swapper/312:00:283
134491450,4ptp4l0-21swapper/011:01:470
134491450,4ptp4l0-21swapper/008:09:510
134491450,3ptp4l0-21swapper/209:46:252
134491450,11ptp4l0-21swapper/007:25:270
134491450,10ptp4l0-21swapper/010:09:560
134491440,9ptp4l0-21swapper/010:27:340
134491440,9ptp4l0-21swapper/010:10:480
134491440,6ptp4l0-21swapper/309:45:133
134491440,4ptp4l0-21swapper/309:43:283
134491440,4ptp4l0-21swapper/107:23:461
134491440,3ptp4l25095-21ls10:20:203
134491440,3ptp4l0-21swapper/210:50:082
134491440,3ptp4l0-21swapper/208:15:112
134491440,3ptp4l0-21swapper/007:40:460
134491430,5ptp4l0-21swapper/310:05:273
134491430,4ptp4l17700-21hddtemp_smartct12:25:163
134491430,4ptp4l0-21swapper/210:25:402
134491430,3ptp4l1011-21apt-get11:50:113
134491430,3ptp4l0-21swapper/112:09:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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