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2026-07-05 - 08:57
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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 highest latencies:
System rackdslot1.osadl.org (updated Sun Jul 05, 2026 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210521750,6sleep1373199cyclictest21:25:161
373099730,70cyclictest12267-21tr21:45:250
373299722,68cyclictest0-21swapper/219:38:492
373299681,65cyclictest0-21swapper/200:23:092
373099680,26cyclictest27699-21seq00:36:270
373099651,60cyclictest31811-21apt-get21:20:120
373099650,27cyclictest29331-21seq22:24:040
373099640,26cyclictest25405-21seq00:31:290
373099640,26cyclictest10311-21seq19:23:390
373099640,22cyclictest4036-21sed21:30:010
134491640,31ptp4l33-21ksoftirqd/223:02:532
3730996312,21cyclictest11318-21/usr/sbin/munin22:55:280
3730996312,21cyclictest11318-21/usr/sbin/munin22:55:280
373099630,60cyclictest30023-21sed20:05:180
373099630,27cyclictest29066-21seq21:12:460
373099622,22cyclictest0-21swapper/023:26:510
373099622,22cyclictest0-21swapper/022:13:290
373099620,26cyclictest13756-21taskset00:07:210
373099612,57cyclictest0-21swapper/023:30:190
373099610,24cyclictest22008-21seq19:48:220
373099610,24cyclictest1139-21taskset20:13:190
373099602,23cyclictest0-21swapper/020:16:070
373099602,22cyclictest0-21swapper/021:16:280
373099601,26cyclictest23249-21taskset00:28:110
373099601,25cyclictest9277-21seq23:59:030
373099600,26cyclictest8557-21seq22:47:110
373099600,26cyclictest22140-21seq22:06:140
373099600,26cyclictest22140-21seq22:06:140
373099600,25cyclictest15355-21seq23:00:460
221062600,4sleep122104-21cat21:00:001
134491600,4ptp4l0-21swapper/120:35:141
373099592,22cyclictest0-21swapper/023:19:520
373099591,26cyclictest25094-21runrttasks23:24:460
373099591,24cyclictest10527-21taskset21:42:310
373099590,26cyclictest19992-21seq23:11:170
373099590,25cyclictest8002-21seq20:26:410
373099580,55cyclictest7318-21memory21:35:220
373099580,27cyclictest21794-21seq20:56:380
373099580,26cyclictest8060-21seq19:19:290
373099580,26cyclictest24366-21seq19:54:120
373099580,25cyclictest19502-21seq20:51:410
373099580,25cyclictest14985-21seq21:50:540
373099580,24cyclictest5042-21/usr/sbin/munin19:10:240
134491580,5ptp4l0-21swapper/122:45:401
134491580,4ptp4l15987-21cat00:10:273
134491580,14ptp4l0-21swapper/321:19:003
373099570,27cyclictest1525-21taskset22:34:070
373099570,26cyclictest19800-21seq19:44:290
373099570,26cyclictest17175-21taskset19:35:370
134491570,5ptp4l0-21swapper/219:06:292
134491570,4ptp4l373299cyclictest23:15:102
134491570,4ptp4l0-21swapper/300:07:453
134491570,3ptp4l0-21swapper/300:15:183
373099560,37cyclictest17449-21seq20:49:440
373099560,24cyclictest3903-21seq22:39:200
238762560,4sleep00-21swapper/021:00:260
134491560,4ptp4l0-21swapper/321:01:273
134491560,3ptp4l0-21swapper/323:02:533
134491560,3ptp4l0-21swapper/322:40:083
373099553,19cyclictest0-21swapper/022:17:570
373099552,21cyclictest0-21swapper/022:03:300
373099550,26cyclictest10789-21seq22:51:240
134491550,3ptp4l0-21swapper/322:00:463
134491550,3ptp4l0-21swapper/319:42:153
373099542,22cyclictest0-21swapper/023:52:460
373099542,22cyclictest0-21swapper/021:32:460
373099540,25cyclictest12424-21seq19:26:200
134491540,4ptp4l0-21swapper/120:40:371
134491540,4ptp4l0-21swapper/119:28:011
134491540,13ptp4l6058-21apt-get19:15:132
373299534,47cyclictest0-21swapper/221:00:282
373099532,21cyclictest0-21swapper/023:46:580
134491530,4ptp4l0-21swapper/321:25:093
134491530,4ptp4l0-21swapper/320:08:503
134491530,4ptp4l0-21swapper/300:32:293
134491530,4ptp4l0-21swapper/122:24:181
134491530,3ptp4l18002-21taskset00:15:261
134491530,3ptp4l0-21swapper/320:16:203
134491530,3ptp4l0-21swapper/121:30:281
134491530,3ptp4l0-21swapper/120:26:421
373299523,46cyclictest0-21swapper/223:30:192
134491520,4ptp4l0-21swapper/321:52:143
134491520,4ptp4l0-21swapper/122:43:471
134491520,19ptp4l25-21ksoftirqd/122:50:121
134491520,10ptp4l0-21swapper/323:51:593
373099513,18cyclictest0-21swapper/021:57:470
134491510,4ptp4l0-21swapper/321:56:103
134491500,5ptp4l0-21swapper/319:05:193
134491500,4ptp4l0-21swapper/321:49:473
134491500,4ptp4l0-21swapper/320:57:203
134491500,4ptp4l0-21swapper/100:07:521
134491500,3ptp4l22186-21sshd22:06:483
134491500,3ptp4l22186-21sshd22:06:483
134491500,3ptp4l0-21swapper/323:33:523
134491500,3ptp4l0-21swapper/121:12:171
134491500,3ptp4l0-21swapper/100:34:461
373099490,17cyclictest134691getstats20:35:190
134491490,4ptp4l0-21swapper/320:39:433
134491490,3ptp4l0-21swapper/323:06:373
134491490,3ptp4l0-21swapper/123:30:261
134491490,3ptp4l0-21swapper/121:08:221
134491490,3ptp4l0-21swapper/121:00:261
134491490,2ptp4l0-21swapper/221:44:172
373099482,21cyclictest0-21swapper/000:05:010
134491480,3ptp4l0-21swapper/319:48:423
134491480,3ptp4l0-21swapper/123:50:591
373099470,14cyclictest134691getstats00:20:260
134491470,4ptp4l0-21swapper/319:59:033
134491470,4ptp4l0-21swapper/119:35:371
134491470,4ptp4l0-21swapper/119:20:181
134491470,4ptp4l0-21swapper/119:19:021
134491470,2ptp4l0-21swapper/222:45:062
134491470,12ptp4l0-21swapper/323:23:343
134491460,4ptp4l0-21swapper/120:33:521
134491460,4ptp4l0-21swapper/100:14:171
134491460,3ptp4l0-21swapper/222:00:202
134491460,10ptp4l0-21swapper/220:21:092
134491460,10ptp4l0-21swapper/200:37:152
373299458,36cyclictest0-21swapper/220:04:282
134491450,9ptp4l0-21swapper/222:39:432
134491450,4ptp4l0-21swapper/323:27:233
134491450,4ptp4l0-21swapper/020:20:200
134491450,3ptp4l0-21swapper/120:06:541
134491450,10ptp4l0-21swapper/320:50:323
134491450,10ptp4l0-21swapper/222:12:092
134491440,5ptp4l0-21swapper/221:30:122
134491440,4ptp4l0-21swapper/321:35:303
134491440,4ptp4l0-21swapper/221:05:202
134491440,4ptp4l0-21swapper/120:54:361
134491440,10ptp4l0-21swapper/220:44:542
373299432,39cyclictest0-21swapper/219:55:492
134491430,9ptp4l0-21swapper/223:23:322
134491430,9ptp4l0-21swapper/220:48:002
134491430,8ptp4l0-21swapper/222:34:052
134491430,5ptp4l373199cyclictest22:10:111
134491430,5ptp4l27362-21grep00:35:263
134491430,4ptp4l4231-21apt-get22:40:132
134491430,4ptp4l21350-21apt-get00:25:132
134491430,4ptp4l15563-21apt-get21:55:112
134491430,10ptp4l0-21swapper/220:10:092
134491430,10ptp4l0-21swapper/200:17:322
134491420,8ptp4l0-21swapper/320:00:213
134491420,7ptp4l0-21swapper/222:25:272
134491420,5ptp4l28071-21ls20:00:221
134491420,5ptp4l0-21swapper/023:05:120
134491420,4ptp4l5184-21memory22:40:210
134491420,4ptp4l3970-21df19:10:131
134491420,4ptp4l24058-21users19:50:281
134491420,4ptp4l2318-21gnome-shell21:38:592
134491420,4ptp4l18738-21ls19:40:201
134491420,4ptp4l0-21swapper/319:53:443
134491420,4ptp4l0-21swapper/100:24:451
134491420,3ptp4l4067-21apt-get21:30:123
134491420,3ptp4l0-21swapper/321:42:583
134491420,3ptp4l0-21swapper/320:30:183
134491420,3ptp4l0-21swapper/222:07:482
134491420,3ptp4l0-21swapper/222:07:482
134491420,10ptp4l0-21swapper/222:21:282
373099411,37cyclictest13702-21iostat_ios20:40:170
134491410,9ptp4l0-21swapper/219:24:352
134491410,9ptp4l0-21swapper/219:12:232
134491410,5ptp4l751-21hddtemp_smartct23:40:161
134491410,5ptp4l0-21swapper/221:27:532
134491410,5ptp4l0-21swapper/122:15:201
134491410,5ptp4l0-21swapper/019:55:220
134491410,5ptp4l0-21swapper/000:18:580
134491410,4ptp4l6534-21diskstats20:25:143
134491410,4ptp4l32115-21df_inode21:20:153
134491410,4ptp4l17726-21apt-get20:50:132
134491410,4ptp4l17099-21users20:45:283
134491410,4ptp4l12720-21apt-get19:30:020
134491410,4ptp4l0-21swapper/322:50:113
134491410,4ptp4l0-21swapper/322:34:433
134491410,4ptp4l0-21swapper/122:25:101
134491410,4ptp4l0-21swapper/121:21:431
134491410,4ptp4l0-21swapper/020:30:140
134491410,3ptp4l31646-21apt-get20:10:123
134491410,3ptp4l29657-21apt-get22:25:110
134491410,3ptp4l26407-21ls22:15:272
134491410,3ptp4l23069-21apt-get23:20:111
134491410,3ptp4l19807-21ls23:10:251
134491410,3ptp4l11198-21ls00:00:302
134491410,18ptp4l25-21ksoftirqd/123:06:491
134491400,5ptp4l11605-21df_abs22:55:151
134491400,5ptp4l11605-21df_abs22:55:151
134491400,5ptp4l0-21swapper/323:15:043
134491400,5ptp4l0-21swapper/321:15:013
134491400,5ptp4l0-21swapper/321:05:203
134491400,4ptp4l0-21swapper/323:43:073
134491400,4ptp4l0-21swapper/323:35:203
134491400,4ptp4l0-21swapper/322:26:143
134491400,4ptp4l0-21swapper/223:40:222
134491400,4ptp4l0-21swapper/223:14:322
134491400,4ptp4l0-21swapper/222:54:262
134491400,4ptp4l0-21swapper/221:51:212
134491400,4ptp4l0-21swapper/221:45:142
134491400,4ptp4l0-21swapper/220:33:082
134491400,4ptp4l0-21swapper/220:25:112
134491400,4ptp4l0-21swapper/220:15:232
134491400,4ptp4l0-21swapper/220:09:112
134491400,4ptp4l0-21swapper/122:36:571
134491400,4ptp4l0-21swapper/119:30:111
134491400,4ptp4l0-21swapper/023:40:150
134491400,4ptp4l0-21swapper/023:35:270
134491400,3ptp4l7755-21ls22:45:203
134491400,3ptp4l3019-21diskstats23:45:151
134491400,3ptp4l2711-21apt-get23:45:112
134491400,3ptp4l18241-21apt-get23:10:093
134491400,3ptp4l11925-21apt-get00:05:132
134491400,2ptp4l20095-21apt-get19:45:111
3732993914,22cyclictest13170-21acpi19:30:122
134491390,5ptp4l0-21swapper/323:45:203
134491390,5ptp4l0-21swapper/120:20:191
134491390,5ptp4l0-21swapper/021:05:180
134491390,4ptp4l28478-21awk20:00:270
134491390,4ptp4l0-21swapper/322:16:173
134491390,4ptp4l0-21swapper/319:35:243
134491390,4ptp4l0-21swapper/300:03:263
134491390,4ptp4l0-21swapper/223:56:332
134491390,4ptp4l0-21swapper/223:54:142
134491390,4ptp4l0-21swapper/223:35:152
134491390,4ptp4l0-21swapper/223:26:092
134491390,4ptp4l0-21swapper/223:05:142
134491390,4ptp4l0-21swapper/222:55:262
134491390,4ptp4l0-21swapper/222:55:262
134491390,4ptp4l0-21swapper/221:15:172
134491390,4ptp4l0-21swapper/221:10:272
134491390,4ptp4l0-21swapper/220:35:282
134491390,4ptp4l0-21swapper/219:51:312
134491390,4ptp4l0-21swapper/219:48:002
134491390,4ptp4l0-21swapper/219:40:382
134491390,4ptp4l0-21swapper/200:30:512
134491390,4ptp4l0-21swapper/123:57:261
134491390,4ptp4l0-21swapper/123:36:581
134491390,4ptp4l0-21swapper/123:15:141
134491390,4ptp4l0-21swapper/121:15:061
134491390,4ptp4l0-21swapper/120:12:261
134491390,4ptp4l0-21swapper/100:35:251
134491390,4ptp4l0-21swapper/019:09:020
134491390,3ptp4l3929-21apt-get20:20:123
134491390,3ptp4l32758-21meminfo21:20:202
134491390,3ptp4l27359-21chrt23:25:581
134491390,3ptp4l26183-21ls19:55:271
134491390,3ptp4l19896-21irqstats00:20:183
134491390,3ptp4l14434-21apt-get00:10:112
134491390,3ptp4l0-21swapper/122:30:131
3731993832,3cyclictest25-21ksoftirqd/122:00:001
134491380,5ptp4l0-21swapper/300:25:123
134491380,4ptp4l3327-21ls22:35:253
134491380,4ptp4l0-21swapper/323:55:143
134491380,4ptp4l0-21swapper/322:10:153
134491380,4ptp4l0-21swapper/320:40:013
134491380,4ptp4l0-21swapper/319:16:173
134491380,4ptp4l0-21swapper/319:12:163
134491380,4ptp4l0-21swapper/219:27:102
134491380,4ptp4l0-21swapper/123:01:431
134491380,4ptp4l0-21swapper/122:07:091
134491380,4ptp4l0-21swapper/122:07:091
134491380,4ptp4l0-21swapper/121:45:211
134491380,4ptp4l0-21swapper/121:40:261
134491380,4ptp4l0-21swapper/121:39:381
134491380,4ptp4l0-21swapper/120:47:511
134491380,4ptp4l0-21swapper/120:15:131
134491380,4ptp4l0-21swapper/100:25:211
134491380,4ptp4l0-21swapper/000:10:140
134491380,3ptp4l20864-21irqstats20:55:212
134491380,3ptp4l0-21swapper/322:55:383
134491380,3ptp4l0-21swapper/322:55:383
134491380,3ptp4l0-21swapper/322:20:063
134491380,3ptp4l0-21swapper/119:09:031
134491370,3ptp4l0-21swapper/100:01:371
134491360,4ptp4l0-21swapper/319:22:233
134491360,4ptp4l0-21swapper/122:03:201
134491360,3ptp4l0-21swapper/121:50:421
134491350,3ptp4l0-21swapper/319:26:143
134491320,3ptp4l0-21swapper/319:32:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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