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2026-01-14 - 06:08
[ 290.152] (II) VESA: driver for VESA chipsets: vesa
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Wed Jan 14, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
967221580,6sleep32787599cyclictest19:39:593
2586521360,6sleep12787399cyclictest20:15:001
134491660,4ptp4l9328-21taskset20:45:260
27875996533,3cyclictest41-21ksoftirqd/322:40:173
2787499652,61cyclictest0-21swapper/221:00:282
2787499635,16cyclictest7017-21cat20:40:302
2787499634,10cyclictest212-21systemd-journal22:35:012
2787499626,17cyclictest3250-21grep21:45:142
2787499626,10cyclictest8575-21cut21:55:192
2787499608,11cyclictest12633-21grep20:55:122
134491600,5ptp4l0-21swapper/022:40:180
2787499598,10cyclictest19805-21latency_hist23:30:002
2787499594,11cyclictest441-21in:imuxsock19:24:182
2787499593,11cyclictest23114-21sed22:25:272
134491590,4ptp4l0-21swapper/120:50:261
134491580,5ptp4l0-21swapper/022:50:290
134491580,4ptp4l0-21swapper/200:05:002
134491580,3ptp4l0-21swapper/019:35:290
2787499576,11cyclictest11596-21expr20:50:262
2787499574,9cyclictest23006-21cut23:35:182
2787499574,9cyclictest13024-21if_enp4s022:05:182
2787499574,9cyclictest13024-21if_enp4s022:05:182
2787499572,12cyclictest7557-21cat00:10:252
134491570,4ptp4l0-21swapper/021:27:480
134491570,3ptp4l0-21swapper/321:10:193
134491570,3ptp4l0-21swapper/020:05:180
134491560,4ptp4l0-21swapper/321:02:383
134491560,4ptp4l0-21swapper/122:40:211
134491560,4ptp4l0-21swapper/020:40:250
134491560,3ptp4l0-21swapper/319:34:553
134491560,3ptp4l0-21swapper/120:35:201
134491560,3ptp4l0-21swapper/022:15:270
2787499554,10cyclictest27764-21cat21:25:262
2787499552,12cyclictest16266-21cat22:10:262
2787499552,10cyclictest0-21swapper/222:50:202
134491550,4ptp4l0-21swapper/120:56:071
134491550,4ptp4l0-21swapper/022:20:260
2787499545,16cyclictest14792-21df_abs19:50:152
134491540,4ptp4l0-21swapper/121:00:211
2787499532,17cyclictest31155-21latency_hist23:55:002
2787499532,17cyclictest13524-21/usr/sbin/munin23:15:182
2787499532,13cyclictest3878-21hddtemp_smartct22:55:182
2787499532,13cyclictest3878-21hddtemp_smartct22:55:172
2787499531,11cyclictest978-21latency_hist22:50:002
134491530,4ptp4l0-21swapper/321:59:523
134491530,4ptp4l0-21swapper/119:13:551
134491530,3ptp4l0-21swapper/122:02:341
2787499527,5cyclictest0-21swapper/221:30:172
2787499526,19cyclictest6333-21mailstats19:30:242
2787499525,8cyclictest9176-21ntp_offset23:05:222
2787499524,16cyclictest3414-21irqrtprio19:25:192
2787499524,11cyclictest0-21swapper/219:15:002
134491520,4ptp4l0-21swapper/100:20:231
134491520,3ptp4l0-21swapper/322:37:343
134491520,3ptp4l0-21swapper/121:41:381
134491520,12ptp4l0-21swapper/119:17:551
134491510,4ptp4l0-21swapper/123:54:231
134491510,4ptp4l0-21swapper/123:47:301
134491510,4ptp4l0-21swapper/122:19:231
134491510,4ptp4l0-21swapper/019:24:420
134491510,3ptp4l0-21swapper/123:18:271
134491510,3ptp4l0-21swapper/121:48:441
134491510,3ptp4l0-21swapper/120:30:331
2787499502,9cyclictest0-21swapper/222:40:212
134491500,5ptp4l0-21swapper/323:03:153
134491500,4ptp4l0-21swapper/123:39:001
134491500,4ptp4l0-21swapper/022:45:230
134491500,3ptp4l0-21swapper/121:34:451
2787499494,7cyclictest26024-21apt-get20:15:152
2787499494,6cyclictest134491ptp4l00:30:142
134491490,5ptp4l0-21swapper/300:29:233
134491490,4ptp4l0-21swapper/123:28:431
134491490,4ptp4l0-21swapper/122:09:311
134491490,4ptp4l0-21swapper/122:09:311
134491490,4ptp4l0-21swapper/023:36:330
134491490,4ptp4l0-21swapper/020:25:050
134491490,12ptp4l0-21swapper/323:46:333
2787499487,9cyclictest8832-21run-parts19:35:242
134491480,7ptp4l0-21swapper/323:56:593
134491480,6ptp4l9048-21iostat00:15:171
134491480,5ptp4l0-21swapper/219:07:202
134491480,4ptp4l0-21swapper/300:33:393
134491480,4ptp4l0-21swapper/123:05:471
134491480,4ptp4l0-21swapper/023:20:590
134491480,4ptp4l0-21swapper/023:10:510
134491480,4ptp4l0-21swapper/023:08:530
134491480,3ptp4l0-21swapper/123:58:131
134491480,3ptp4l0-21swapper/123:43:281
134491480,3ptp4l0-21swapper/021:58:270
134491480,3ptp4l0-21swapper/020:03:230
2787499475,7cyclictest19115-21apt-get20:00:112
2787499473,9cyclictest25120-21ntp_states21:20:242
134491470,9ptp4l0-21swapper/019:05:090
134491470,4ptp4l0-21swapper/123:33:531
134491470,3ptp4l0-21swapper/122:51:151
134491470,3ptp4l0-21swapper/119:49:361
2787499469,6cyclictest21987-21iostat20:05:182
2787499465,5cyclictest0-21swapper/223:10:242
2787499465,10cyclictest24843-21ntp_states20:10:252
134491460,4ptp4l0-21swapper/319:23:213
134491460,4ptp4l0-21swapper/122:47:531
134491460,4ptp4l0-21swapper/000:22:410
134491460,3ptp4l0-21swapper/220:36:162
27875994533,3cyclictest41-21ksoftirqd/320:20:273
27875994533,3cyclictest41-21ksoftirqd/320:20:273
2787499454,7cyclictest17107-21apt-get22:15:122
2787499452,9cyclictest20288-21perl23:30:152
2787499452,9cyclictest1745-21perl00:00:152
134491450,4ptp4l0-21swapper/319:27:213
134491450,4ptp4l0-21swapper/123:02:051
27875994439,3cyclictest41-21ksoftirqd/321:40:003
2787499447,7cyclictest31432-21ls19:15:202
2787499447,5cyclictest0-21swapper/220:49:252
2787499445,8cyclictest18512-21ssh21:05:272
134491440,5ptp4l0-21swapper/021:10:270
134491440,4ptp4l0-21swapper/323:23:353
134491440,4ptp4l0-21swapper/320:29:083
134491440,4ptp4l0-21swapper/300:02:163
134491440,3ptp4l0-21swapper/321:53:253
134491440,3ptp4l0-21swapper/120:00:461
134491440,3ptp4l0-21swapper/100:25:271
134491440,3ptp4l0-21swapper/020:54:070
27875994338,3cyclictest41-21ksoftirqd/320:00:003
2787499435,8cyclictest10958-21ntp_states19:40:222
2787499435,12cyclictest29828-21ssh20:20:252
2787499435,12cyclictest29828-21ssh20:20:252
134491430,5ptp4l0-21swapper/221:50:272
134491430,4ptp4l5764-21apt-get23:00:112
134491430,4ptp4l15715-21df_inode00:30:140
134491430,4ptp4l0-21swapper/023:41:210
134491430,3ptp4l0-21swapper/100:35:571
2787599428,7cyclictest41-21ksoftirqd/322:30:013
27875994237,3cyclictest41-21ksoftirqd/322:55:003
2787499424,8cyclictest17910-21/usr/sbin/munin00:35:202
134491420,5ptp4l0-21swapper/222:30:202
134491420,5ptp4l0-21swapper/221:40:112
134491420,4ptp4l7025-21irqstats00:10:180
134491420,4ptp4l27418-21ntp_states21:25:213
134491420,4ptp4l21681-21apt-get21:15:123
134491420,4ptp4l13211-21ls19:45:200
134491420,4ptp4l0-21swapper/320:01:513
134491420,4ptp4l0-21swapper/120:09:141
134491420,3ptp4l0-21swapper/319:40:283
2787599417,4cyclictest41-21ksoftirqd/323:05:143
27875994136,3cyclictest41-21ksoftirqd/323:35:003
27875994136,3cyclictest41-21ksoftirqd/321:00:003
27875994136,3cyclictest41-21ksoftirqd/320:20:003
27875994136,3cyclictest41-21ksoftirqd/300:15:013
27875994136,2cyclictest41-21ksoftirqd/321:35:003
27875994135,3cyclictest41-21ksoftirqd/319:20:013
27875994111,4cyclictest41-21ksoftirqd/320:10:513
2787499416,11cyclictest9768-21which00:15:242
145902410,6sleep0212-21systemd-journal22:10:000
145902410,6sleep0212-21systemd-journal22:10:000
134491410,8ptp4l9-21ksoftirqd/019:30:050
134491410,8ptp4l0-21swapper/219:58:432
134491410,7ptp4l9-21ksoftirqd/021:22:480
134491410,5ptp4l0-21swapper/322:55:133
134491410,5ptp4l0-21swapper/322:55:133
134491410,5ptp4l0-21swapper/200:20:212
134491410,5ptp4l0-21swapper/123:20:131
134491410,5ptp4l0-21swapper/122:55:291
134491410,5ptp4l0-21swapper/122:55:291
134491410,5ptp4l0-21swapper/020:10:270
134491410,5ptp4l0-21swapper/019:15:130
134491410,4ptp4l4314-21ntp_states21:45:243
134491410,4ptp4l32033-21ntp_states21:35:230
134491410,4ptp4l29563-21memory21:30:210
134491410,4ptp4l14801-21diskstats19:50:150
134491410,4ptp4l0-21swapper/123:13:211
134491410,4ptp4l0-21swapper/100:09:041
134491410,3ptp4l10125-21apt-get22:00:130
134491410,3ptp4l0-21swapper/119:39:351
27875994035,3cyclictest41-21ksoftirqd/322:15:133
27875994034,4cyclictest41-21ksoftirqd/321:25:003
27875994034,3cyclictest41-21ksoftirqd/300:40:003
2787499406,11cyclictest0-21swapper/219:48:252
134491400,5ptp4l0-21swapper/122:12:341
134491400,5ptp4l0-21swapper/119:06:591
134491400,4ptp4l8232-21hddtemp_smartct21:55:171
134491400,4ptp4l598-21df_inode19:20:131
134491400,4ptp4l4063-21grep00:05:140
134491400,4ptp4l31653-21meminfo20:25:251
134491400,4ptp4l23793-21apt-get22:30:033
134491400,4ptp4l20936-21ls22:20:281
134491400,4ptp4l17291-21df21:05:143
134491400,4ptp4l15344-21iostat_ios21:00:180
134491400,4ptp4l0-21swapper/223:45:272
134491400,4ptp4l0-21swapper/120:20:201
134491400,4ptp4l0-21swapper/120:20:201
134491400,4ptp4l0-21swapper/022:37:110
134491400,4ptp4l0-21swapper/022:11:330
134491400,4ptp4l0-21swapper/021:40:240
134491400,4ptp4l0-21swapper/020:30:110
134491400,4ptp4l0-21swapper/020:15:200
134491400,4ptp4l0-21swapper/020:00:010
134491400,3ptp4l7792-21apt-get20:45:121
134491400,3ptp4l32418-21ls23:55:210
134491400,3ptp4l15614-21ntp_states19:50:221
134491400,3ptp4l13020-21iostat_ios20:55:160
134491400,3ptp4l0-21swapper/322:45:133
27875993935,3cyclictest41-21ksoftirqd/323:55:003
27875993934,3cyclictest41-21ksoftirqd/323:25:163
27875993934,3cyclictest41-21ksoftirqd/300:16:583
27875993933,3cyclictest41-21ksoftirqd/319:50:133
27875993910,8cyclictest41-21ksoftirqd/322:10:243
2787499390,5cyclictest134691getstats21:10:152
134491390,9ptp4l0-21swapper/220:29:072
134491390,7ptp4l0-21swapper/223:21:152
134491390,5ptp4l26753-21hwlatdetect21:25:141
134491390,5ptp4l24225-21df_abs21:20:141
134491390,5ptp4l0-21swapper/119:25:181
134491390,4ptp4l4998-21/usr/sbin/munin19:30:101
134491390,4ptp4l0-21swapper/323:44:443
134491390,4ptp4l0-21swapper/322:20:133
134491390,4ptp4l0-21swapper/223:44:512
134491390,4ptp4l0-21swapper/222:02:532
134491390,4ptp4l0-21swapper/221:37:092
134491390,4ptp4l0-21swapper/221:15:112
134491390,4ptp4l0-21swapper/200:25:222
134491390,4ptp4l0-21swapper/122:37:271
134491390,4ptp4l0-21swapper/120:15:291
134491390,4ptp4l0-21swapper/119:59:351
134491390,4ptp4l0-21swapper/100:00:241
134491390,4ptp4l0-21swapper/023:25:220
134491390,4ptp4l0-21swapper/023:15:150
134491390,4ptp4l0-21swapper/023:01:550
134491390,4ptp4l0-21swapper/022:57:370
134491390,4ptp4l0-21swapper/022:57:370
134491390,4ptp4l0-21swapper/022:34:070
134491390,4ptp4l0-21swapper/021:50:250
134491390,4ptp4l0-21swapper/021:17:360
134491390,4ptp4l0-21swapper/021:09:510
134491390,4ptp4l0-21swapper/020:35:180
134491390,4ptp4l0-21swapper/019:40:120
134491390,4ptp4l0-21swapper/019:11:430
134491390,4ptp4l0-21swapper/000:35:220
134491390,4ptp4l0-21swapper/000:01:090
134491390,3ptp4l8793-21diskstats00:15:140
134491390,3ptp4l23241-21ls22:25:291
134491390,3ptp4l0-21swapper/122:30:111
134491390,3ptp4l0-21swapper/020:20:190
134491390,3ptp4l0-21swapper/020:20:180
2787599388,4cyclictest41-21ksoftirqd/320:30:183
27875993834,2cyclictest41-21ksoftirqd/323:10:133
27875993832,3cyclictest41-21ksoftirqd/320:40:003
134491380,5ptp4l0-21swapper/320:05:113
134491380,4ptp4l0-21swapper/323:15:133
134491380,4ptp4l0-21swapper/322:05:313
134491380,4ptp4l0-21swapper/322:05:313
134491380,4ptp4l0-21swapper/322:02:013
134491380,4ptp4l0-21swapper/320:48:363
134491380,4ptp4l0-21swapper/319:10:243
134491380,4ptp4l0-21swapper/300:20:203
134491380,4ptp4l0-21swapper/300:05:293
134491380,4ptp4l0-21swapper/223:56:282
134491380,4ptp4l0-21swapper/222:20:292
134491380,4ptp4l0-21swapper/220:32:002
134491380,4ptp4l0-21swapper/121:15:271
134491380,4ptp4l0-21swapper/121:05:221
134491380,4ptp4l0-21swapper/100:30:231
134491380,4ptp4l0-21swapper/100:14:131
134491380,4ptp4l0-21swapper/023:51:160
134491380,4ptp4l0-21swapper/023:30:150
134491380,4ptp4l0-21swapper/022:26:240
134491380,4ptp4l0-21swapper/021:47:440
134491380,4ptp4l0-21swapper/019:26:460
134491380,4ptp4l0-21swapper/000:26:150
134491380,3ptp4l5928-21hddtemp_smartct21:50:161
134491380,3ptp4l26987-21cstates23:45:130
134491380,3ptp4l0-21swapper/119:42:261
27875993732,3cyclictest41-21ksoftirqd/319:45:143
27875993731,3cyclictest41-21ksoftirqd/320:50:193
134491370,4ptp4l20864-21cat21:10:261
134491370,4ptp4l0-21swapper/323:38:483
134491370,4ptp4l0-21swapper/320:41:353
134491370,4ptp4l0-21swapper/121:35:111
134491370,3ptp4l0-21swapper/120:40:231
27875993630,3cyclictest41-21ksoftirqd/321:40:123
134491360,5ptp4l0-21swapper/319:08:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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