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2026-06-27 - 15:33
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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 Sat Jun 27, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2863821720,6sleep11558399cyclictest12:15:191
2745221710,3sleep31558599cyclictest07:35:153
788621330,5sleep31558599cyclictest10:20:193
134491670,4ptp4l2260-21apt-get10:10:122
15583996613,12cyclictest10713-21chrt08:07:351
1558399617,11cyclictest15626-21grep07:10:151
15583996117,41cyclictest19533-21/usr/sbin/munin11:55:211
175252600,5sleep20-21swapper/209:30:232
1558399596,10cyclictest28475-21tr07:35:271
134491590,3ptp4l0-21swapper/112:25:221
1558399588,10cyclictest4270-21sed07:55:151
1558399587,11cyclictest134491ptp4l07:40:221
134491580,4ptp4l0-21swapper/210:09:332
134491580,3ptp4l0-21swapper/312:05:573
134491580,3ptp4l0-21swapper/208:55:212
1558399575,12cyclictest26334-21systemctl08:40:261
134491570,4ptp4l0-21swapper/109:02:421
134491570,3ptp4l0-21swapper/109:35:211
1558399566,11cyclictest2505-21cpu11:20:141
134491560,4ptp4l0-21swapper/212:33:452
134491560,4ptp4l0-21swapper/211:47:302
134491560,4ptp4l0-21swapper/209:08:382
134491560,4ptp4l0-21swapper/011:49:150
134491560,4ptp4l0-21swapper/011:40:250
134491560,24ptp4l25-21ksoftirqd/109:15:221
15583995515,37cyclictest20669-21apt-get12:00:031
134491550,4ptp4l0-21swapper/011:05:190
134491550,3ptp4l0-21swapper/008:10:260
76532540,5sleep27652-21ntp_kernel_err08:00:222
15583995412,10cyclictest13297-21chrt09:20:441
134491540,5ptp4l0-21swapper/210:01:592
134491540,4ptp4l0-21swapper/211:44:112
134491540,4ptp4l0-21swapper/208:41:362
134491540,4ptp4l0-21swapper/009:08:560
134491540,4ptp4l0-21swapper/008:01:380
134491540,3ptp4l0-21swapper/008:48:290
15583995316,34cyclictest14931-21meminfo11:45:211
134491530,5ptp4l0-21swapper/010:42:330
134491530,4ptp4l0-21swapper/310:59:143
134491530,4ptp4l0-21swapper/008:16:450
134491530,4ptp4l0-21swapper/007:47:320
134491530,3ptp4l0-21swapper/011:54:510
134491530,3ptp4l0-21swapper/007:56:240
134491520,4ptp4l0-21swapper/212:07:302
134491520,4ptp4l0-21swapper/208:19:452
134491520,4ptp4l0-21swapper/010:17:430
134491520,4ptp4l0-21swapper/008:08:380
134491520,3ptp4l0-21swapper/210:27:492
134491520,3ptp4l0-21swapper/012:23:010
134491520,3ptp4l0-21swapper/011:14:410
1558399519,39cyclictest24313-21sed12:05:201
1558399518,16cyclictest1468-21cat10:05:281
1558399518,14cyclictest19347-21timerandwakeup07:15:271
134491510,4ptp4l0-21swapper/211:31:422
134491510,4ptp4l0-21swapper/208:08:592
134491510,4ptp4l0-21swapper/010:51:370
134491510,4ptp4l0-21swapper/010:29:080
134491510,4ptp4l0-21swapper/009:25:570
134491510,4ptp4l0-21swapper/008:50:440
134491510,3ptp4l0-21swapper/009:35:270
134491500,6ptp4l0-21swapper/009:50:160
134491500,4ptp4l0-21swapper/211:26:442
134491500,4ptp4l0-21swapper/211:18:462
134491500,4ptp4l0-21swapper/210:58:382
134491500,4ptp4l0-21swapper/209:37:532
134491500,4ptp4l0-21swapper/209:27:112
134491500,4ptp4l0-21swapper/207:40:092
134491500,4ptp4l0-21swapper/012:08:550
134491500,4ptp4l0-21swapper/008:34:500
134491500,4ptp4l0-21swapper/008:24:280
1558399497,39cyclictest0-21swapper/110:50:161
1558399495,11cyclictest17459-21systemctl10:40:241
134491490,4ptp4l0-21swapper/308:37:533
134491490,4ptp4l0-21swapper/212:10:472
134491490,4ptp4l0-21swapper/211:58:172
134491490,4ptp4l0-21swapper/210:54:432
134491490,4ptp4l0-21swapper/007:32:290
134491490,3ptp4l0-21swapper/007:37:460
1558399488,8cyclictest14442-21missed_timers08:15:211
1558399488,37cyclictest4309-21users12:30:301
1558399488,37cyclictest11027-21awk11:35:271
1558399487,10cyclictest0-21swapper/108:31:251
1558399483,9cyclictest0-21swapper/109:30:251
134491480,4ptp4l0-21swapper/208:29:182
134491480,4ptp4l0-21swapper/008:27:510
1558399477,5cyclictest0-21swapper/108:51:541
134491470,4ptp4l0-21swapper/010:30:330
1558399467,5cyclictest0-21swapper/111:16:471
15583994615,27cyclictest16634-21irqstats08:20:191
15583994610,12cyclictest7919-21meminfo09:10:221
134491460,8ptp4l0-21swapper/107:05:251
134491460,4ptp4l0-21swapper/311:46:053
134491460,3ptp4l0-21swapper/010:39:500
1558399458,9cyclictest0-21swapper/109:08:151
134491450,4ptp4l0-21swapper/311:39:333
134491450,4ptp4l0-21swapper/011:02:370
134491450,4ptp4l0-21swapper/007:06:170
134491450,3ptp4l23106-21irqrtprio07:25:191
134491450,3ptp4l0-21swapper/212:15:252
1558399448,6cyclictest134491ptp4l09:45:181
1558399448,6cyclictest134491ptp4l09:45:181
134491440,9ptp4l0-21swapper/211:22:092
134491440,9ptp4l0-21swapper/209:04:332
134491440,5ptp4l0-21swapper/210:45:272
134491440,4ptp4l17119-21ls07:10:300
134491440,4ptp4l0-21swapper/207:29:532
134491440,3ptp4l20228-21apt-get07:20:131
134491440,2ptp4l0-21swapper/110:23:071
134491440,10ptp4l0-21swapper/211:02:392
15584994337,3cyclictest33-21ksoftirqd/207:20:012
1558399437,7cyclictest770-21ls07:45:251
1558399436,5cyclictest0-21swapper/109:57:541
15583994311,28cyclictest19549-21ntp_states10:45:221
134491430,9ptp4l0-21swapper/211:53:372
134491430,9ptp4l0-21swapper/209:42:152
134491430,9ptp4l0-21swapper/208:46:542
134491430,8ptp4l0-21swapper/009:44:460
134491430,6ptp4l0-21swapper/011:25:210
134491430,5ptp4l0-21swapper/307:50:133
134491430,5ptp4l0-21swapper/307:45:173
134491430,4ptp4l31075-21ls10:00:210
134491430,4ptp4l0-21swapper/012:00:110
134491430,3ptp4l23094-21apt-get09:45:122
134491430,3ptp4l23094-21apt-get09:45:122
134491430,3ptp4l0-21swapper/012:37:430
15583994210,5cyclictest5730-21memory11:25:221
15583994210,13cyclictest12110-21meminfo08:10:211
134491420,9ptp4l0-21swapper/210:41:222
134491420,9ptp4l0-21swapper/208:36:302
134491420,9ptp4l0-21swapper/207:51:272
134491420,8ptp4l0-21swapper/208:31:532
134491420,8ptp4l0-21swapper/207:59:252
134491420,5ptp4l20669-21apt-get12:00:032
134491420,5ptp4l0-21swapper/011:55:280
134491420,5ptp4l0-21swapper/009:00:180
134491420,4ptp4l23240-21apt-get10:55:140
134491420,4ptp4l14245-21hddtemp_smartct10:35:161
134491420,4ptp4l12465-21kworker/3:008:00:163
134491420,4ptp4l0-21swapper/110:30:111
134491420,4ptp4l0-21swapper/011:15:030
134491420,4ptp4l0-21swapper/009:46:020
134491420,4ptp4l0-21swapper/009:46:020
134491420,4ptp4l0-21swapper/009:20:360
134491420,3ptp4l9264-21apt-get09:15:110
15584994136,3cyclictest33-21ksoftirqd/210:40:002
15584994135,3cyclictest33-21ksoftirqd/207:50:002
15584994135,3cyclictest33-21ksoftirqd/207:35:202
15584994124,2cyclictest33-21ksoftirqd/212:30:002
1558399418,14cyclictest13867-21/usr/sbin/munin09:25:291
134491410,9ptp4l9-21ksoftirqd/007:15:020
134491410,6ptp4l28122-21/usr/sbin/munin11:05:152
134491410,5ptp4l1558399cyclictest12:20:201
134491410,5ptp4l0-21swapper/311:20:203
134491410,5ptp4l0-21swapper/309:50:293
134491410,5ptp4l0-21swapper/107:30:121
134491410,5ptp4l0-21swapper/008:55:110
134491410,5ptp4l0-21swapper/007:40:190
134491410,4ptp4l832-21ntp_states08:55:233
134491410,4ptp4l7411-21irqstats08:00:191
134491410,4ptp4l28484-21iostat_ios11:05:191
134491410,4ptp4l26886-21ntp_states12:10:241
134491410,4ptp4l25612-21apt-get11:00:131
134491410,4ptp4l1996-21diskstats07:50:150
134491410,4ptp4l0-21swapper/307:10:283
134491410,4ptp4l0-21swapper/212:23:432
134491410,4ptp4l0-21swapper/207:30:452
134491410,4ptp4l0-21swapper/110:55:281
134491410,4ptp4l0-21swapper/110:25:211
134491410,4ptp4l0-21swapper/012:18:010
134491410,4ptp4l0-21swapper/010:47:540
134491410,4ptp4l0-21swapper/009:32:450
134491410,3ptp4l25768-21apt-get12:10:130
15584994036,3cyclictest33-21ksoftirqd/209:55:012
1378914027,4phc2sys41-21ksoftirqd/308:26:583
134491400,5ptp4l0-21swapper/312:30:563
134491400,5ptp4l0-21swapper/310:05:243
134491400,5ptp4l0-21swapper/109:50:141
134491400,5ptp4l0-21swapper/108:35:191
134491400,5ptp4l0-21swapper/107:50:181
134491400,5ptp4l0-21swapper/010:20:160
134491400,4ptp4l21902-21users07:20:290
134491400,4ptp4l17237-21memory11:50:201
134491400,4ptp4l0-21swapper/311:11:593
134491400,4ptp4l0-21swapper/308:05:283
134491400,4ptp4l0-21swapper/210:34:512
134491400,4ptp4l0-21swapper/207:12:132
134491400,4ptp4l0-21swapper/012:30:210
134491400,4ptp4l0-21swapper/011:35:210
134491400,4ptp4l0-21swapper/007:25:380
134491400,3ptp4l2610-21df_inode10:10:140
134491400,3ptp4l2479-21apt-get11:20:150
134491400,3ptp4l0-21swapper/008:40:280
134491400,3ptp4l0-21swapper/008:38:510
15585993935,3cyclictest41-21ksoftirqd/308:00:003
15584993934,3cyclictest33-21ksoftirqd/211:35:192
15584993934,3cyclictest33-21ksoftirqd/210:20:332
134491390,5ptp4l20317-21latency_hist08:30:011
134491390,4ptp4l0-21swapper/312:25:063
134491390,4ptp4l0-21swapper/312:01:503
134491390,4ptp4l0-21swapper/311:55:133
134491390,4ptp4l0-21swapper/311:41:593
134491390,4ptp4l0-21swapper/311:30:143
134491390,4ptp4l0-21swapper/310:30:143
134491390,4ptp4l0-21swapper/310:29:273
134491390,4ptp4l0-21swapper/309:55:153
134491390,4ptp4l0-21swapper/307:25:213
134491390,4ptp4l0-21swapper/212:37:522
134491390,4ptp4l0-21swapper/211:12:402
134491390,4ptp4l0-21swapper/210:17:272
134491390,4ptp4l0-21swapper/209:55:252
134491390,4ptp4l0-21swapper/209:23:482
134491390,4ptp4l0-21swapper/209:15:002
134491390,4ptp4l0-21swapper/209:12:332
134491390,4ptp4l0-21swapper/208:54:312
134491390,4ptp4l0-21swapper/207:21:232
134491390,4ptp4l0-21swapper/111:40:161
134491390,4ptp4l0-21swapper/110:15:201
134491390,4ptp4l0-21swapper/110:00:161
134491390,4ptp4l0-21swapper/108:57:461
134491390,4ptp4l0-21swapper/012:25:120
134491390,4ptp4l0-21swapper/010:09:510
134491390,4ptp4l0-21swapper/009:56:330
134491390,3ptp4l8097-21ntp_states09:10:240
134491390,3ptp4l29223-21users08:45:291
134491390,3ptp4l2740-21hddtemp_smartct10:10:161
134491390,3ptp4l0-21swapper/109:40:531
134491390,3ptp4l0-21swapper/011:30:330
15584993833,4cyclictest33-21ksoftirqd/208:20:192
134491380,5ptp4l0-21swapper/312:35:143
134491380,4ptp4l0-21swapper/312:23:443
134491380,4ptp4l0-21swapper/311:52:283
134491380,4ptp4l0-21swapper/311:15:293
134491380,4ptp4l0-21swapper/311:09:423
134491380,4ptp4l0-21swapper/311:00:183
134491380,4ptp4l0-21swapper/310:17:583
134491380,4ptp4l0-21swapper/309:33:313
134491380,4ptp4l0-21swapper/309:29:373
134491380,4ptp4l0-21swapper/309:15:263
134491380,4ptp4l0-21swapper/308:31:173
134491380,4ptp4l0-21swapper/307:18:143
134491380,4ptp4l0-21swapper/208:10:442
134491380,4ptp4l0-21swapper/112:35:161
134491380,4ptp4l0-21swapper/111:30:291
134491380,3ptp4l19892-21timerandwakeup10:45:263
134491380,3ptp4l0-21swapper/312:15:383
134491380,3ptp4l0-21swapper/311:28:273
134491380,3ptp4l0-21swapper/310:12:083
134491380,3ptp4l0-21swapper/307:21:263
134491380,3ptp4l0-21swapper/111:10:161
15585993732,3cyclictest41-21ksoftirqd/309:09:073
134491370,5ptp4l0-21swapper/309:40:073
134491370,4ptp4l0-21swapper/312:11:583
134491370,4ptp4l0-21swapper/309:46:273
134491370,4ptp4l0-21swapper/309:46:273
134491370,4ptp4l0-21swapper/309:14:273
134491370,4ptp4l0-21swapper/308:52:023
134491370,4ptp4l0-21swapper/308:41:473
134491370,4ptp4l0-21swapper/308:21:293
134491370,4ptp4l0-21swapper/308:10:473
134491370,4ptp4l0-21swapper/307:40:143
134491370,3ptp4l0-21swapper/310:01:453
134491370,3ptp4l0-21swapper/308:17:443
134491360,4ptp4l0-21swapper/310:42:043
134491360,4ptp4l0-21swapper/309:04:453
134491360,4ptp4l0-21swapper/308:46:573
134491360,3ptp4l0-21swapper/310:50:083
134491360,3ptp4l0-21swapper/310:36:163
134491360,3ptp4l0-21swapper/309:20:093
134491360,3ptp4l0-21swapper/307:30:503
134491310,3ptp4l0-21swapper/309:37:553
46198280,4rtkit-daemon0-21swapper/307:05:523
140852131,7sleep214188-21load07:05:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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