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2025-11-27 - 18:38
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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 Thu Nov 27, 2025 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2182721720,3sleep20-21swapper/207:05:292
2847191710,4ptp4l8987-21taskset08:57:180
2847191650,5ptp4l21492-21proc_pri07:05:261
2847191650,4ptp4l25283-21interrupts11:50:170
2847191640,4ptp4l26418-21systemctl08:25:240
2847191640,3ptp4l0-21swapper/010:35:280
2847191630,4ptp4l0-21swapper/009:32:020
2847191620,3ptp4l13199-21irqstats10:15:210
2847191610,5ptp4l0-21swapper/009:55:150
2847191600,5ptp4l0-21swapper/112:20:181
2847191600,4ptp4l16940-21sed10:25:010
2847191600,3ptp4l19578-21fschecks_time09:20:170
2847191600,2ptp4l1778-21gnome-shell09:54:590
2847191600,16ptp4l9444-21ls11:15:190
2847191590,4ptp4l0-21swapper/112:15:211
235582590,3sleep0111rcuc/011:45:250
2847191580,4ptp4l0-21swapper/210:02:132
2847191580,3ptp4l0-21swapper/012:11:140
2847191580,3ptp4l0-21swapper/008:45:000
2847191570,3ptp4l0-21swapper/210:35:242
2847191560,3ptp4l0-21swapper/308:35:183
2847191560,3ptp4l0-21swapper/007:40:270
173262560,2sleep117329-21cut09:15:181
2847191550,3ptp4l0-21swapper/308:01:383
2847191550,3ptp4l0-21swapper/111:10:291
321722540,3sleep032177-21irqrtprio10:55:180
2847191540,4ptp4l0-21swapper/012:35:430
2847191540,3ptp4l0-21swapper/311:16:333
2847191530,4ptp4l0-21swapper/312:20:043
2847191530,4ptp4l0-21swapper/309:35:013
2847191530,4ptp4l0-21swapper/208:47:412
2847191530,4ptp4l0-21swapper/208:10:022
2847191530,3ptp4l0-21swapper/210:47:072
2847191530,3ptp4l0-21swapper/008:38:590
2847191530,2ptp4l0-21swapper/009:25:230
2847191530,14ptp4l0-21swapper/007:09:290
2847191520,4ptp4l0-21swapper/211:10:082
2847191520,4ptp4l0-21swapper/210:14:532
2847191520,4ptp4l0-21swapper/210:14:532
2847191520,4ptp4l0-21swapper/209:01:432
2847191520,4ptp4l0-21swapper/207:56:222
2847191520,4ptp4l0-21swapper/109:45:381
2847191520,4ptp4l0-21swapper/109:42:551
2847191520,3ptp4l0-21swapper/011:08:410
2847191510,4ptp4l0-21swapper/009:47:550
2847191510,3ptp4l0-21swapper/007:33:220
2847191500,7ptp4l0-21swapper/009:06:510
2847191500,4ptp4l0-21swapper/212:36:562
2847191500,4ptp4l0-21swapper/111:25:031
2847191500,4ptp4l0-21swapper/012:25:300
2847191500,4ptp4l0-21swapper/009:10:500
2847191500,3ptp4l0-21swapper/310:32:573
2847191500,3ptp4l0-21swapper/011:40:160
2847191500,3ptp4l0-21swapper/009:00:150
2847191490,5ptp4l9757-21irqstats07:50:220
2847191490,4ptp4l0-21swapper/011:01:540
2847191490,3ptp4l0-21swapper/211:45:152
2847191490,3ptp4l0-21swapper/111:36:441
2847191490,3ptp4l0-21swapper/012:09:550
2847191480,3ptp4l0-21swapper/008:54:020
41798470,12rtkit-daemon0-21swapper/208:31:332
2847191470,6ptp4l0-21swapper/211:55:282
2847191470,5ptp4l1778-21gnome-shell08:15:590
2847191470,4ptp4l0-21swapper/010:44:410
2847191470,3ptp4l0-21swapper/012:22:490
2847191470,12ptp4l0-21swapper/008:20:130
2847191450,9ptp4l0-21swapper/207:29:432
2847191450,5ptp4l21516-21ls11:40:271
2847191450,5ptp4l0-21swapper/208:18:262
2847191450,4ptp4l28302-21ps11:55:241
2847191450,4ptp4l0-21swapper/207:23:162
2847191450,4ptp4l0-21swapper/109:32:131
2847191450,4ptp4l0-21swapper/109:04:211
2847191450,4ptp4l0-21swapper/010:27:090
2847191450,3ptp4l0-21swapper/012:30:310
2847191450,12ptp4l25-21ksoftirqd/108:53:241
2847191440,9ptp4l0-21swapper/207:52:042
2847191440,4ptp4l7442-21irqstats07:45:181
2847191440,4ptp4l0-21swapper/108:58:481
2847191440,4ptp4l0-21swapper/108:46:211
2847191440,3ptp4l0-21swapper/007:16:280
2847191440,10ptp4l0-21swapper/212:16:452
2847191440,10ptp4l0-21swapper/210:44:112
2847191430,9ptp4l0-21swapper/212:08:052
2847191430,8ptp4l0-21swapper/009:40:190
2847191430,5ptp4l0-21swapper/311:08:493
2847191430,5ptp4l0-21swapper/107:25:261
2847191430,4ptp4l5413-21ntp_states07:40:251
2847191430,4ptp4l26956-21apt-get10:45:150
2847191430,4ptp4l15444-21apt-get11:30:120
2847191430,4ptp4l13527-21apt-get08:00:101
2847191430,4ptp4l0-21swapper/211:23:202
2847191430,4ptp4l0-21swapper/111:00:191
2847191430,3ptp4l28489-21apt-get09:40:133
2847191430,15ptp4l1299-21runrttasks08:12:103
2847191430,11ptp4l0-21swapper/307:48:563
2847191420,8ptp4l0-21swapper/207:46:162
2847191420,8ptp4l0-21swapper/207:40:572
2847191420,5ptp4l16804-21meminfo08:05:203
2847191420,5ptp4l10320-21sed07:50:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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