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2026-01-11 - 23:16
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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 Sun Jan 11, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491690,5ptp4l0-21swapper/107:05:291
58072670,4sleep25804-21awk11:20:012
307482610,4sleep00-21swapper/011:00:290
134491610,4ptp4l1301-21snmpd07:26:553
134491600,4ptp4l0-21swapper/108:35:221
259772590,5sleep20-21swapper/210:50:272
134491590,3ptp4l0-21swapper/008:23:320
134491580,19ptp4l29691-21iostat11:00:191
134491570,9ptp4l16658-21diskstats07:05:160
134491570,4ptp4l0-21swapper/009:39:550
134491570,4ptp4l0-21swapper/009:39:550
134491570,3ptp4l0-21swapper/210:47:452
134491570,3ptp4l0-21swapper/111:25:211
134491550,4ptp4l0-21swapper/110:11:041
134491550,4ptp4l0-21swapper/010:29:540
134491550,3ptp4l0-21swapper/012:10:020
134491540,4ptp4l0-21swapper/109:22:111
134491540,4ptp4l0-21swapper/107:36:101
134491540,3ptp4l0-21swapper/112:25:161
134491540,3ptp4l0-21swapper/111:42:111
134491520,4ptp4l0-21swapper/312:13:073
134491520,4ptp4l0-21swapper/308:59:403
134491520,4ptp4l0-21swapper/308:15:333
134491520,4ptp4l0-21swapper/108:05:211
134491520,4ptp4l0-21swapper/008:42:040
134491510,5ptp4l0-21swapper/311:06:433
134491510,4ptp4l0-21swapper/311:29:343
134491510,4ptp4l0-21swapper/307:16:323
134491510,12ptp4l0-21swapper/112:10:181
134491500,4ptp4l0-21swapper/312:38:383
134491500,4ptp4l0-21swapper/311:59:333
134491500,4ptp4l0-21swapper/311:54:213
134491500,4ptp4l0-21swapper/311:48:543
134491500,4ptp4l0-21swapper/311:01:393
134491500,4ptp4l0-21swapper/310:56:303
134491500,4ptp4l0-21swapper/309:11:573
134491500,4ptp4l0-21swapper/308:48:213
134491500,4ptp4l0-21swapper/308:48:213
134491500,4ptp4l0-21swapper/307:11:363
134491500,4ptp4l0-21swapper/211:39:072
134491500,4ptp4l0-21swapper/109:35:001
134491500,4ptp4l0-21swapper/107:57:421
134491500,4ptp4l0-21swapper/107:47:301
134491500,4ptp4l0-21swapper/010:33:470
134491500,3ptp4l0-21swapper/211:52:552
134491490,5ptp4l33-21ksoftirqd/212:27:522
134491490,4ptp4l0-21swapper/312:21:143
134491490,4ptp4l0-21swapper/312:02:133
134491490,4ptp4l0-21swapper/310:17:203
134491490,4ptp4l0-21swapper/307:23:073
134491490,4ptp4l0-21swapper/108:23:151
134491490,4ptp4l0-21swapper/107:21:511
134491490,4ptp4l0-21swapper/008:18:130
134491490,3ptp4l10313-21fschecks_time08:00:160
134491490,3ptp4l0-21swapper/010:46:160
134491480,4ptp4l0-21swapper/109:28:391
134491480,4ptp4l0-21swapper/010:13:350
134491480,3ptp4l0-21swapper/107:10:211
134491480,3ptp4l0-21swapper/011:39:500
134491480,10ptp4l0-21swapper/008:55:140
18839994712,33cyclictest17722-21kworker/2:008:55:282
134491470,4ptp4l0-21swapper/310:32:283
134491470,4ptp4l0-21swapper/009:53:320
134491470,4ptp4l0-21swapper/009:04:300
134491470,4ptp4l0-21swapper/007:18:000
134491470,3ptp4l0-21swapper/312:30:033
134491470,3ptp4l0-21swapper/011:17:080
134491470,3ptp4l0-21swapper/011:14:270
18838994615,29cyclictest12201-21kworker/1:210:32:591
134491460,4ptp4l0-21swapper/310:25:143
134491460,4ptp4l0-21swapper/211:49:332
134491460,4ptp4l0-21swapper/111:15:461
134491460,4ptp4l0-21swapper/010:52:400
134491460,4ptp4l0-21swapper/009:57:180
134491460,3ptp4l396-21ls11:05:281
134491460,3ptp4l10157-21apt-get09:10:130
134491460,11ptp4l0-21swapper/210:00:382
18839994512,31cyclictest8398-21kworker/2:110:30:282
134491450,3ptp4l0-21swapper/310:07:193
134491450,3ptp4l0-21swapper/112:09:031
134491450,2ptp4l0-21swapper/109:08:131
134491450,10ptp4l0-21swapper/307:49:313
134491440,9ptp4l0-21swapper/308:07:013
134491440,9ptp4l0-21swapper/210:21:072
134491440,5ptp4l0-21swapper/310:00:103
134491440,4ptp4l9579-21ls10:15:282
134491440,4ptp4l0-21swapper/212:11:482
134491440,4ptp4l0-21swapper/211:40:242
134491440,4ptp4l0-21swapper/011:28:190
134491440,10ptp4l0-21swapper/308:54:053
46198430,3rtkit-daemon0-21swapper/311:34:453
134491430,9ptp4l0-21swapper/211:23:352
134491430,9ptp4l0-21swapper/210:28:482
134491430,9ptp4l0-21swapper/207:44:592
134491430,9ptp4l0-21swapper/207:44:592
134491430,4ptp4l1987-21apt-get12:25:143
134491430,4ptp4l0-21swapper/212:01:212
134491430,4ptp4l0-21swapper/211:25:132
134491430,4ptp4l0-21swapper/007:12:500
134491430,3ptp4l0-21swapper/111:23:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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