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2026-03-20 - 18:34
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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 Fri Mar 20, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2999021350,4sleep3778699cyclictest09:05:223
134491770,12ptp4l5452-21apt-get07:05:110
121162760,5sleep20-21swapper/210:45:182
212732750,5sleep341-21ksoftirqd/311:05:173
778699650,3cyclictest2187-21missed_timers08:05:203
134491630,5ptp4l0-21swapper/207:35:162
134491620,4ptp4l0-21swapper/212:20:112
134491610,4ptp4l0-21swapper/009:55:250
778699580,29cyclictest6396-21taskset11:43:113
134491580,5ptp4l0-21swapper/008:42:560
213022570,4sleep00-21swapper/011:05:170
134491570,5ptp4l0-21swapper/107:08:111
134491570,3ptp4l0-21swapper/311:15:273
134491570,3ptp4l0-21swapper/209:05:152
778699560,3cyclictest14523-21irqrtprio10:50:173
134491560,4ptp4l0-21swapper/208:17:202
134491560,4ptp4l0-21swapper/207:40:122
134491560,4ptp4l0-21swapper/111:22:451
134491560,3ptp4l0-21swapper/310:05:183
778699551,16cyclictest134691getstats12:35:203
134491550,5ptp4l0-21swapper/209:45:172
134491550,4ptp4l0-21swapper/209:30:012
134491550,4ptp4l0-21swapper/011:50:170
134491550,3ptp4l0-21swapper/210:05:242
7786995415,37cyclictest0-21swapper/307:38:493
134491540,4ptp4l0-21swapper/212:19:342
134491540,4ptp4l0-21swapper/208:22:282
134491540,4ptp4l0-21swapper/207:15:252
134491540,3ptp4l0-21swapper/212:09:362
134491540,3ptp4l0-21swapper/208:25:312
778699530,3cyclictest10864-21tune2fs08:25:153
134491530,4ptp4l0-21swapper/009:43:150
134491530,10ptp4l0-21swapper/210:30:142
778699521,48cyclictest18614-21iostat_ios09:50:163
134491520,4ptp4l0-21swapper/208:51:422
134491520,4ptp4l0-21swapper/207:27:442
134491520,4ptp4l0-21swapper/109:38:491
134491520,4ptp4l0-21swapper/012:33:550
134491520,4ptp4l0-21swapper/012:29:300
134491520,4ptp4l0-21swapper/008:20:200
134491520,4ptp4l0-21swapper/008:11:240
134491520,10ptp4l0-21swapper/207:33:162
134491510,4ptp4l0-21swapper/209:28:422
134491510,4ptp4l0-21swapper/208:07:492
134491510,3ptp4l0-21swapper/210:23:452
134491500,4ptp4l0-21swapper/012:04:540
134491500,4ptp4l0-21swapper/011:31:270
134491500,4ptp4l0-21swapper/010:03:110
134491500,3ptp4l0-21swapper/209:52:522
134491500,3ptp4l0-21swapper/209:22:352
134491500,3ptp4l0-21swapper/209:17:152
134491500,3ptp4l0-21swapper/011:39:580
778699491,45cyclictest923-21ntp_states11:30:243
134491490,4ptp4l0-21swapper/107:55:521
134491490,4ptp4l0-21swapper/012:09:420
134491490,3ptp4l0-21swapper/208:04:012
134491490,3ptp4l0-21swapper/207:50:322
134491490,3ptp4l0-21swapper/008:15:090
778699480,45cyclictest31309-21/usr/sbin/munin08:00:143
778699480,3cyclictest28724-21apt09:05:003
134491480,4ptp4l0-21swapper/212:14:482
134491480,4ptp4l0-21swapper/212:00:002
134491480,4ptp4l0-21swapper/212:00:002
134491480,4ptp4l0-21swapper/207:57:172
134491480,3ptp4l0-21swapper/210:41:332
134491480,3ptp4l0-21swapper/008:53:340
134491480,12ptp4l0-21swapper/012:20:240
778699471,25cyclictest18859-21taskset07:31:433
134491470,4ptp4l0-21swapper/210:37:532
134491470,4ptp4l0-21swapper/010:49:160
134491470,3ptp4l0-21swapper/211:14:392
134491470,3ptp4l0-21swapper/109:40:371
134491460,3ptp4l0-21swapper/211:29:442
134491460,3ptp4l0-21swapper/210:51:052
134491460,12ptp4l0-21swapper/107:38:311
134491450,6ptp4l2318-21gnome-shell08:57:580
134491450,4ptp4l9379-21ls07:10:260
134491450,4ptp4l5255-21ls09:20:263
134491450,4ptp4l0-21swapper/307:15:253
134491450,4ptp4l0-21swapper/210:13:222
134491450,3ptp4l0-21swapper/211:37:192
134491450,15ptp4l0-21swapper/010:05:400
134491450,11ptp4l0-21swapper/110:25:151
134491450,11ptp4l0-21swapper/007:32:320
134491450,10ptp4l0-21swapper/011:04:290
778699440,2cyclictest29936-21apt-get11:25:123
134491440,9ptp4l0-21swapper/012:18:390
134491440,4ptp4l20342-21apt-get09:55:122
134491440,4ptp4l0-21swapper/212:39:252
134491440,4ptp4l0-21swapper/008:49:410
134491440,3ptp4l0-21swapper/211:00:242
134491440,3ptp4l0-21swapper/112:30:211
134491440,10ptp4l0-21swapper/011:40:020
778699433,23cyclictest0-21swapper/310:00:363
134491430,9ptp4l9-21ksoftirqd/009:02:420
134491430,9ptp4l0-21swapper/008:38:280
134491430,6ptp4l0-21swapper/312:10:263
134491430,6ptp4l0-21swapper/211:50:102
134491430,5ptp4l778699cyclictest10:30:173
134491430,4ptp4l6798-21apt-get11:45:121
134491430,4ptp4l16071-21apt-get12:05:093
778699420,3cyclictest6709-21sed09:25:183
778699420,26cyclictest16533-21taskset07:26:193
134491420,5ptp4l16677-21iostat_ios10:55:170
134491420,5ptp4l0-21swapper/110:15:171
134491420,5ptp4l0-21swapper/108:35:181
134491420,4ptp4l27638-21apt-get11:20:123
134491420,4ptp4l19212-21irqstats12:10:190
134491420,4ptp4l13070-21users11:55:271
134491420,4ptp4l13070-21users11:55:271
134491420,4ptp4l12409-21meminfo10:45:191
134491420,4ptp4l0-21swapper/209:11:592
134491420,4ptp4l0-21swapper/109:07:521
134491420,4ptp4l0-21swapper/011:20:150
134491420,4ptp4l0-21swapper/009:47:460
134491420,4ptp4l0-21swapper/007:50:180
134491420,4ptp4l0-21swapper/007:49:180
134491420,3ptp4l16106-21apt-get10:55:102
134491420,3ptp4l0-21swapper/211:24:372
134491420,3ptp4l0-21swapper/209:03:572
134491410,8ptp4l0-21swapper/011:13:450
134491410,6ptp4l0-21swapper/108:25:111
134491410,5ptp4l5061-21/usr/sbin/munin10:30:160
134491410,5ptp4l21383-21unixbench_singl08:45:273
134491410,5ptp4l1512-21/usr/sbin/munin10:20:261
134491410,5ptp4l10114-21memory10:40:181
134491410,5ptp4l0-21swapper/311:35:173
134491410,5ptp4l0-21swapper/307:20:113
134491410,5ptp4l0-21swapper/208:10:252
134491410,5ptp4l0-21swapper/107:10:131
134491410,5ptp4l0-21swapper/010:25:120
134491410,5ptp4l0-21swapper/009:20:240
134491410,5ptp4l0-21swapper/007:43:460
134491410,4ptp4l986-21ntp_states10:20:213
134491410,4ptp4l635-21irqstats11:30:191
134491410,4ptp4l29763-21apt-get10:15:113
134491410,4ptp4l23175-21ntp_states08:50:243
134491410,4ptp4l13184-21apt-get09:40:132
134491410,4ptp4l10007-21irqstats10:40:180
134491410,4ptp4l0-21swapper/310:40:173
134491410,4ptp4l0-21swapper/212:25:462
134491410,4ptp4l0-21swapper/111:42:201
134491410,4ptp4l0-21swapper/108:01:121
134491410,3ptp4l6998-21meminfo09:25:190
134491410,3ptp4l5874-21apt-get08:15:111
134491410,3ptp4l3186-21ls10:25:173
134491410,3ptp4l30128-21ntp_states07:55:233
134491410,3ptp4l28577-21ntp_states10:10:223
134491410,3ptp4l19988-21ls11:00:253
134491410,3ptp4l16106-21apt-get10:55:113
134491410,3ptp4l0-21swapper/209:37:332
46198400,9rtkit-daemon0-21swapper/110:39:481
134491400,5ptp4l0-21swapper/308:35:123
134491400,5ptp4l0-21swapper/210:00:162
134491400,5ptp4l0-21swapper/108:55:131
134491400,4ptp4l31144-21runrttasks10:15:260
134491400,4ptp4l22389-21users11:05:271
134491400,4ptp4l11400-21apt-get11:55:113
134491400,4ptp4l11400-21apt-get11:55:113
134491400,4ptp4l0-21swapper/312:25:013
134491400,4ptp4l0-21swapper/309:45:113
134491400,4ptp4l0-21swapper/308:30:123
134491400,4ptp4l0-21swapper/308:10:173
134491400,4ptp4l0-21swapper/307:50:173
134491400,4ptp4l0-21swapper/210:15:212
134491400,4ptp4l0-21swapper/207:10:182
134491400,4ptp4l0-21swapper/110:55:131
134491400,4ptp4l0-21swapper/108:05:221
134491400,4ptp4l0-21swapper/107:45:271
134491400,4ptp4l0-21swapper/107:40:241
134491400,4ptp4l0-21swapper/012:35:230
134491400,4ptp4l0-21swapper/011:56:150
134491400,4ptp4l0-21swapper/011:56:150
134491400,4ptp4l0-21swapper/010:36:210
134491400,4ptp4l0-21swapper/009:50:260
134491400,4ptp4l0-21swapper/009:30:260
134491400,4ptp4l0-21swapper/009:07:560
134491400,4ptp4l0-21swapper/007:25:090
134491400,4ptp4l0-21swapper/007:24:260
134491400,3ptp4l9232-21ls07:10:253
134491400,3ptp4l8122-21apt-get09:30:033
134491400,3ptp4l32230-21apt-get11:30:132
134491400,3ptp4l20874-21df12:15:123
134491400,3ptp4l18045-21apt-get09:50:101
134491400,3ptp4l0-21swapper/211:45:132
134491400,13ptp4l0-21swapper/111:35:121
134491400,13ptp4l0-21swapper/108:31:351
7785993934,3cyclictest33-21ksoftirqd/208:43:502
134491390,5ptp4l23949-21cat11:10:193
134491390,5ptp4l0-21swapper/309:15:113
134491390,5ptp4l0-21swapper/308:40:133
134491390,5ptp4l0-21swapper/212:00:142
134491390,4ptp4l10203-21ntp_kernel_pll_11:50:241
134491390,4ptp4l0-21swapper/312:30:413
134491390,4ptp4l0-21swapper/312:20:133
134491390,4ptp4l0-21swapper/312:00:253
134491390,4ptp4l0-21swapper/310:45:233
134491390,4ptp4l0-21swapper/309:55:243
134491390,4ptp4l0-21swapper/309:43:173
134491390,4ptp4l0-21swapper/309:35:073
134491390,4ptp4l0-21swapper/309:10:123
134491390,4ptp4l0-21swapper/308:55:213
134491390,4ptp4l0-21swapper/308:18:383
134491390,4ptp4l0-21swapper/307:45:293
134491390,4ptp4l0-21swapper/307:40:203
134491390,4ptp4l0-21swapper/208:55:242
134491390,4ptp4l0-21swapper/208:45:192
134491390,4ptp4l0-21swapper/208:35:142
134491390,4ptp4l0-21swapper/112:36:311
134491390,4ptp4l0-21swapper/112:02:021
134491390,4ptp4l0-21swapper/111:17:531
134491390,4ptp4l0-21swapper/111:13:041
134491390,4ptp4l0-21swapper/111:00:141
134491390,4ptp4l0-21swapper/110:12:021
134491390,4ptp4l0-21swapper/110:00:241
134491390,4ptp4l0-21swapper/109:59:391
134491390,4ptp4l0-21swapper/108:50:261
134491390,4ptp4l0-21swapper/108:45:451
134491390,4ptp4l0-21swapper/107:54:151
134491390,4ptp4l0-21swapper/107:21:141
134491390,4ptp4l0-21swapper/011:46:490
134491390,4ptp4l0-21swapper/011:27:090
134491390,4ptp4l0-21swapper/011:15:070
134491390,4ptp4l0-21swapper/010:21:280
134491390,4ptp4l0-21swapper/010:10:170
134491390,4ptp4l0-21swapper/009:37:280
134491390,4ptp4l0-21swapper/009:17:440
134491390,4ptp4l0-21swapper/009:12:170
134491390,4ptp4l0-21swapper/008:25:350
134491390,4ptp4l0-21swapper/008:05:090
134491390,4ptp4l0-21swapper/008:03:200
134491390,4ptp4l0-21swapper/007:56:160
134491390,4ptp4l0-21swapper/007:35:200
134491390,3ptp4l13812-21ls08:30:200
134491390,3ptp4l12738-21diskstats07:20:122
7784993833,3cyclictest25-21ksoftirqd/110:35:001
134491380,5ptp4l0-21swapper/212:30:112
134491380,5ptp4l0-21swapper/207:45:082
134491380,5ptp4l0-21swapper/007:18:000
134491380,4ptp4l8413-21ls10:35:263
134491380,4ptp4l0-21swapper/311:50:163
134491380,4ptp4l0-21swapper/311:45:163
134491380,4ptp4l0-21swapper/308:20:033
134491380,4ptp4l0-21swapper/211:43:242
134491380,4ptp4l0-21swapper/211:09:312
134491380,4ptp4l0-21swapper/112:25:281
134491380,4ptp4l0-21swapper/112:23:211
134491380,4ptp4l0-21swapper/112:15:201
134491380,4ptp4l0-21swapper/111:26:581
134491380,4ptp4l0-21swapper/109:49:151
134491380,4ptp4l0-21swapper/108:42:351
134491380,4ptp4l0-21swapper/108:21:561
134491380,4ptp4l0-21swapper/107:29:261
134491380,4ptp4l0-21swapper/010:50:130
134491380,3ptp4l9070-21if_enp4s009:30:171
134491380,3ptp4l3266-21ls10:25:202
134491380,3ptp4l0-21swapper/208:30:132
134491380,3ptp4l0-21swapper/112:05:201
134491370,4ptp4l0-21swapper/211:15:282
134491370,4ptp4l0-21swapper/112:10:251
134491370,4ptp4l0-21swapper/110:06:511
134491370,4ptp4l0-21swapper/109:24:421
134491370,4ptp4l0-21swapper/109:15:401
134491370,4ptp4l0-21swapper/109:01:271
134491370,3ptp4l0-21swapper/110:54:471
134491370,3ptp4l0-21swapper/109:13:551
134491370,3ptp4l0-21swapper/108:10:151
134491360,3ptp4l0-21swapper/109:28:421
134491350,3ptp4l0-21swapper/107:17:451
7784993126,4cyclictest25-21ksoftirqd/107:35:011
137891235,11phc2sys0-21swapper/307:05:223
71752124,4sleep20-21swapper/207:05:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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