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2025-12-26 - 00:11
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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 Thu Dec 25, 2025 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1562621780,5sleep11022499cyclictest10:50:131
134491700,4ptp4l23161-21irqstats11:05:191
1022799617,7cyclictest0-21swapper/311:40:233
134491600,4ptp4l0-21swapper/112:00:011
88802590,3sleep38881-21irqrtprio08:15:193
134491590,4ptp4l0-21swapper/207:44:272
134491590,3ptp4l0-21swapper/209:46:342
134491590,3ptp4l0-21swapper/010:35:270
134491580,4ptp4l0-21swapper/012:15:140
134491580,3ptp4l10575-21/usr/sbin/munin09:30:141
206872570,5sleep10-21swapper/112:10:131
134491570,4ptp4l0-21swapper/109:10:191
134491570,3ptp4l0-21swapper/112:05:231
134491570,3ptp4l0-21swapper/110:34:551
1022799578,7cyclictest0-21swapper/312:15:153
134491560,3ptp4l0-21swapper/308:10:013
134491560,3ptp4l0-21swapper/209:57:532
134491560,3ptp4l0-21swapper/209:57:532
134491560,3ptp4l0-21swapper/112:00:171
134491550,4ptp4l0-21swapper/309:20:293
1022799551,11cyclictest27365-21cat12:25:003
134491540,4ptp4l0-21swapper/112:32:591
134491540,4ptp4l0-21swapper/109:47:211
134491540,4ptp4l0-21swapper/109:23:451
134491540,4ptp4l0-21swapper/108:15:381
1022799548,6cyclictest0-21swapper/310:30:193
1022799546,5cyclictest0-21swapper/309:00:183
134491530,4ptp4l0-21swapper/108:33:141
134491530,4ptp4l0-21swapper/107:23:051
134491530,4ptp4l0-21swapper/008:29:000
134491530,12ptp4l0-21swapper/108:37:031
1022799536,10cyclictest0-21swapper/310:58:183
1022799532,6cyclictest41-21ksoftirqd/312:35:193
134491520,4ptp4l0-21swapper/211:55:572
134491520,4ptp4l0-21swapper/207:30:072
134491520,4ptp4l0-21swapper/112:38:311
134491520,4ptp4l0-21swapper/109:36:421
134491520,3ptp4l0-21swapper/111:15:251
134491520,12ptp4l0-21swapper/008:11:410
1022799527,6cyclictest0-21swapper/308:30:223
1022799525,6cyclictest14510-21sed09:35:253
134491510,4ptp4l0-21swapper/211:07:042
134491510,4ptp4l0-21swapper/208:56:272
134491510,4ptp4l0-21swapper/012:09:080
134491510,3ptp4l0-21swapper/111:32:431
1022799517,10cyclictest0-21swapper/311:50:123
1022799514,10cyclictest0-21swapper/311:02:583
1022799512,7cyclictest41-21ksoftirqd/307:20:263
10227995110,7cyclictest41-21ksoftirqd/310:35:203
134491500,4ptp4l0-21swapper/111:10:541
134491500,4ptp4l0-21swapper/111:10:541
134491500,4ptp4l0-21swapper/111:02:451
134491500,4ptp4l0-21swapper/110:08:041
134491500,4ptp4l0-21swapper/007:16:200
134491500,17ptp4l0-21swapper/307:12:233
1022799508,6cyclictest0-21swapper/309:50:123
1022799507,6cyclictest0-21swapper/311:55:163
1022799502,6cyclictest11741-21phc2sys09:30:243
1022799501,6cyclictest25090-21irqrtprio08:50:193
1022799501,18cyclictest134491ptp4l07:54:253
134491490,4ptp4l0-21swapper/210:26:242
134491490,4ptp4l0-21swapper/207:35:152
134491490,3ptp4l0-21swapper/211:43:072
1022799495,6cyclictest0-21swapper/310:20:193
134491480,8ptp4l0-21swapper/107:05:101
134491480,4ptp4l0-21swapper/310:18:323
134491480,4ptp4l0-21swapper/210:37:312
134491480,4ptp4l0-21swapper/107:33:431
134491480,4ptp4l0-21swapper/009:05:020
134491480,4ptp4l0-21swapper/008:07:230
134491480,3ptp4l0-21swapper/207:59:592
134491480,3ptp4l0-21swapper/011:53:320
134491480,3ptp4l0-21swapper/011:04:270
134491480,11ptp4l0-21swapper/112:28:461
1022799488,6cyclictest0-21swapper/310:40:213
1022799487,6cyclictest0-21swapper/309:05:143
1022799486,7cyclictest0-21swapper/309:55:133
1022799486,7cyclictest0-21swapper/309:55:133
1022799485,7cyclictest0-21swapper/311:10:143
1022799485,7cyclictest0-21swapper/311:10:143
1022799482,6cyclictest41-21ksoftirqd/310:00:213
134491470,4ptp4l0-21swapper/211:00:162
134491470,4ptp4l0-21swapper/208:54:312
134491470,4ptp4l0-21swapper/111:25:431
134491470,4ptp4l0-21swapper/110:04:221
134491470,4ptp4l0-21swapper/011:12:080
134491470,4ptp4l0-21swapper/011:12:070
134491470,3ptp4l0-21swapper/011:18:340
1022799477,10cyclictest0-21swapper/308:40:483
1022799476,6cyclictest0-21swapper/310:10:153
1022799476,6cyclictest0-21swapper/308:45:163
1022799476,11cyclictest0-21swapper/311:19:343
1022799474,6cyclictest0-21swapper/309:15:173
1022799474,6cyclictest0-21swapper/307:30:153
1022799473,6cyclictest0-21swapper/308:05:133
134491460,4ptp4l0-21swapper/210:14:402
134491460,4ptp4l0-21swapper/110:55:171
1022799467,12cyclictest0-21swapper/307:40:123
134491450,4ptp4l0-21swapper/107:15:041
134491450,4ptp4l0-21swapper/009:43:310
134491450,4ptp4l0-21swapper/007:57:250
134491450,4ptp4l0-21swapper/007:05:540
134491450,3ptp4l0-21swapper/011:34:080
134491450,2ptp4l241ktimersoftd/110:35:011
1022799455,6cyclictest0-21swapper/312:25:173
134491440,8ptp4l0-21swapper/110:40:021
134491440,4ptp4l0-21swapper/207:45:192
134491440,4ptp4l0-21swapper/110:47:271
134491440,4ptp4l0-21swapper/107:12:221
134491440,3ptp4l0-21swapper/310:25:153
134491440,2ptp4l0-21swapper/009:26:120
134491440,2ptp4l0-21swapper/009:26:120
134491440,10ptp4l0-21swapper/007:50:200
1022799446,6cyclictest0-21swapper/307:27:383
1022799446,10cyclictest0-21swapper/307:35:163
134491430,8ptp4l0-21swapper/007:33:400
134491430,5ptp4l0-21swapper/208:15:132
134491430,5ptp4l0-21swapper/012:35:280
134491430,4ptp4l7074-21ls10:30:200
134491430,4ptp4l6124-21diskstats08:10:152
134491430,4ptp4l3772-21apt-get11:35:103
134491430,4ptp4l25253-21apt-get12:20:131
134491430,3ptp4l0-21swapper/008:30:230
134491430,2ptp4l121rcu_preempt08:02:010
134491430,11ptp4l0-21swapper/007:41:580
1022799436,6cyclictest0-21swapper/311:25:133
1022799435,6cyclictest0-21swapper/311:45:173
134491420,5ptp4l0-21swapper/008:50:210
134491420,4ptp4l26803-21apt-get08:55:133
134491420,4ptp4l12259-21users09:30:290
134491420,4ptp4l0-21swapper/012:20:130
134491420,4ptp4l0-21swapper/010:41:020
134491420,3ptp4l23435-21ntp_states11:05:220
134491420,3ptp4l0-21swapper/209:26:112
134491420,3ptp4l0-21swapper/209:26:112
134491420,3ptp4l0-21swapper/010:55:280
1022799422,6cyclictest0-21swapper/310:05:253
1022799422,6cyclictest0-21swapper/308:00:173
1022799421,4cyclictest0-21swapper/312:04:153
10223994237,3cyclictest9-21ksoftirqd/007:39:590
134491410,5ptp4l0-21swapper/212:35:232
134491410,5ptp4l0-21swapper/208:35:092
134491410,5ptp4l0-21swapper/109:55:131
134491410,5ptp4l0-21swapper/109:55:131
134491410,5ptp4l0-21swapper/009:50:110
134491410,5ptp4l0-21swapper/009:35:110
134491410,5ptp4l0-21swapper/007:45:290
134491410,4ptp4l4634-21ntp_states08:05:212
134491410,4ptp4l32470-21memory11:25:190
134491410,4ptp4l27107-21df_inode08:55:150
134491410,4ptp4l23862-21ls09:55:260
134491410,4ptp4l23862-21ls09:55:260
134491410,4ptp4l22620-21iostat_ios07:35:171
134491410,4ptp4l22522-21diskstats08:45:151
134491410,4ptp4l18570-21ntp_states07:25:220
134491410,4ptp4l18111-21/usr/sbin/munin12:05:173
134491410,4ptp4l17067-21users10:50:262
134491410,4ptp4l16533-21ntp_states09:40:221
134491410,4ptp4l16366-21ntp_states08:30:212
134491410,4ptp4l16362-21meminfo09:40:202
134491410,4ptp4l11898-21memory11:50:211
134491410,4ptp4l0-21swapper/210:55:282
134491410,4ptp4l0-21swapper/111:20:281
134491410,4ptp4l0-21swapper/108:21:311
134491410,4ptp4l0-21swapper/012:25:290
134491410,4ptp4l0-21swapper/012:10:020
134491410,4ptp4l0-21swapper/011:20:190
134491410,4ptp4l0-21swapper/010:00:020
134491410,4ptp4l0-21swapper/009:15:480
134491410,4ptp4l0-21swapper/008:47:200
134491410,3ptp4l9751-21apt-get07:10:020
134491410,3ptp4l8600-21apt-get11:45:132
134491410,3ptp4l7799-21ls11:40:231
1022799411,6cyclictest41-21ksoftirqd/309:45:163
10224994136,3cyclictest25-21ksoftirqd/109:54:591
10224994136,3cyclictest25-21ksoftirqd/107:44:591
134491400,5ptp4l29857-21grep10:10:190
134491400,5ptp4l16374-21missed_timers09:40:203
134491400,5ptp4l0-21swapper/312:30:143
134491400,5ptp4l0-21swapper/212:29:592
134491400,5ptp4l0-21swapper/211:35:122
134491400,5ptp4l0-21swapper/211:15:172
134491400,5ptp4l0-21swapper/210:15:122
134491400,5ptp4l0-21swapper/207:25:012
134491400,5ptp4l0-21swapper/112:17:591
134491400,5ptp4l0-21swapper/107:55:131
134491400,5ptp4l0-21swapper/107:50:211
134491400,5ptp4l0-21swapper/011:45:180
134491400,5ptp4l0-21swapper/010:20:210
134491400,5ptp4l0-21swapper/008:40:320
134491400,4ptp4l8894-21df_abs11:45:151
134491400,4ptp4l4791-21memory10:25:190
134491400,4ptp4l16782-21memory12:00:230
134491400,4ptp4l10749-21diskstats08:20:170
134491400,4ptp4l0-21swapper/311:05:153
134491400,4ptp4l0-21swapper/309:25:123
134491400,4ptp4l0-21swapper/309:25:123
134491400,4ptp4l0-21swapper/210:47:542
134491400,4ptp4l0-21swapper/210:30:492
134491400,4ptp4l0-21swapper/209:53:502
134491400,4ptp4l0-21swapper/209:20:142
134491400,4ptp4l0-21swapper/209:10:242
134491400,4ptp4l0-21swapper/208:46:352
134491400,4ptp4l0-21swapper/110:20:291
134491400,4ptp4l0-21swapper/109:05:101
134491400,4ptp4l0-21swapper/108:57:571
134491400,4ptp4l0-21swapper/108:10:591
134491400,4ptp4l0-21swapper/010:15:140
134491400,4ptp4l0-21swapper/010:05:090
134491400,4ptp4l0-21swapper/009:21:220
134491400,4ptp4l0-21swapper/009:14:400
134491400,4ptp4l0-21swapper/009:02:140
134491400,3ptp4l8320-21df08:15:140
134491400,3ptp4l6273-21appstreamcli11:40:010
134491400,3ptp4l4465-21meminfo08:05:181
134491400,3ptp4l3668-21apt-get09:15:102
134491400,3ptp4l32129-21iostat10:15:171
134491400,3ptp4l31514-21users12:30:290
134491400,3ptp4l29259-21diskstats07:50:152
134491400,3ptp4l17597-21apt-get08:35:113
134491400,3ptp4l13542-21df_inode11:55:140
134491400,3ptp4l10897-21diskstats09:30:162
134491400,3ptp4l0-21swapper/010:53:580
10226994034,4cyclictest33-21ksoftirqd/207:21:302
134491390,5ptp4l41-21ksoftirqd/307:55:223
134491390,5ptp4l0-21swapper/310:50:183
134491390,4ptp4l8754-21basename09:25:171
134491390,4ptp4l8754-21basename09:25:171
134491390,4ptp4l0-21swapper/311:30:193
134491390,4ptp4l0-21swapper/308:20:213
134491390,4ptp4l0-21swapper/307:45:273
134491390,4ptp4l0-21swapper/212:22:532
134491390,4ptp4l0-21swapper/212:17:002
134491390,4ptp4l0-21swapper/212:04:462
134491390,4ptp4l0-21swapper/211:50:082
134491390,4ptp4l0-21swapper/211:25:112
134491390,4ptp4l0-21swapper/210:40:152
134491390,4ptp4l0-21swapper/210:00:222
134491390,4ptp4l0-21swapper/209:35:012
134491390,4ptp4l0-21swapper/208:03:352
134491390,4ptp4l0-21swapper/111:35:171
134491390,4ptp4l0-21swapper/110:25:371
134491390,4ptp4l0-21swapper/109:01:091
134491390,4ptp4l0-21swapper/108:50:191
134491390,4ptp4l0-21swapper/108:41:251
134491390,4ptp4l0-21swapper/108:25:081
134491390,4ptp4l0-21swapper/108:00:331
134491390,4ptp4l0-21swapper/011:35:230
134491390,4ptp4l0-21swapper/010:45:130
134491390,4ptp4l0-21swapper/009:45:160
134491390,4ptp4l0-21swapper/008:36:220
134491390,4ptp4l0-21swapper/007:23:210
134491390,3ptp4l0-21swapper/212:30:192
134491390,3ptp4l0-21swapper/210:06:502
1022799397,6cyclictest0-21swapper/308:26:003
1022799392,7cyclictest0-21swapper/310:45:243
1022799392,24cyclictest0-21swapper/309:10:023
10226993934,3cyclictest33-21ksoftirqd/211:21:072
10224993934,3cyclictest25-21ksoftirqd/107:45:181
134491380,4ptp4l0-21swapper/311:20:493
134491380,4ptp4l0-21swapper/212:08:222
134491380,4ptp4l0-21swapper/211:33:192
134491380,4ptp4l0-21swapper/209:06:022
134491380,4ptp4l0-21swapper/209:00:452
134491380,4ptp4l0-21swapper/208:40:042
134491380,4ptp4l0-21swapper/208:27:562
134491380,4ptp4l0-21swapper/208:20:252
134491380,4ptp4l0-21swapper/207:19:422
134491380,4ptp4l0-21swapper/110:10:111
134491380,3ptp4l0-21swapper/210:20:172
134491380,3ptp4l0-21swapper/107:25:171
1022799382,23cyclictest0-21swapper/307:16:123
134491370,4ptp4l33-21ksoftirqd/207:10:182
134491370,4ptp4l0-21swapper/312:10:053
134491370,4ptp4l0-21swapper/211:10:192
134491370,4ptp4l0-21swapper/211:10:192
134491370,3ptp4l0-21swapper/212:14:012
134491350,3ptp4l0-21swapper/109:18:591
46198310,4rtkit-daemon0-21swapper/307:05:503
97352213,3sleep20-21swapper/207:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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