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2025-12-25 - 06:26
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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 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145732780,5sleep3643599cyclictest00:05:013
643299702,25cyclictest0-21swapper/022:40:140
6434996534,5cyclictest33-21ksoftirqd/222:35:192
6434996532,5cyclictest33-21ksoftirqd/221:55:182
6434996528,3cyclictest33-21ksoftirqd/220:55:272
6434996433,4cyclictest33-21ksoftirqd/223:10:282
6434996331,6cyclictest33-21ksoftirqd/220:30:282
6434996329,6cyclictest33-21ksoftirqd/200:10:202
6434996329,5cyclictest33-21ksoftirqd/223:50:002
6434996327,4cyclictest33-21ksoftirqd/222:05:182
6434996229,5cyclictest33-21ksoftirqd/223:35:242
6434996228,7cyclictest33-21ksoftirqd/222:25:272
6434996130,5cyclictest33-21ksoftirqd/221:07:042
6434996130,4cyclictest33-21ksoftirqd/219:18:172
6434996129,5cyclictest33-21ksoftirqd/219:30:232
6434996129,4cyclictest33-21ksoftirqd/220:47:142
6434996029,4cyclictest33-21ksoftirqd/219:38:552
6434996029,4cyclictest33-21ksoftirqd/219:38:552
6434996028,4cyclictest33-21ksoftirqd/223:59:532
6434996028,4cyclictest33-21ksoftirqd/220:14:452
6434996027,4cyclictest33-21ksoftirqd/220:15:182
6434996024,7cyclictest33-21ksoftirqd/219:25:002
6434996024,6cyclictest33-21ksoftirqd/221:45:002
6434996024,6cyclictest33-21ksoftirqd/221:45:002
643299607,20cyclictest6102-21taskset20:16:500
161512600,1sleep216150-21/usr/sbin/munin20:40:132
6434995929,4cyclictest33-21ksoftirqd/219:55:272
6434995928,4cyclictest33-21ksoftirqd/223:54:592
6434995928,4cyclictest33-21ksoftirqd/200:07:322
6434995928,3cyclictest33-21ksoftirqd/221:19:482
6434995927,6cyclictest33-21ksoftirqd/219:25:152
6434995927,5cyclictest33-21ksoftirqd/219:55:002
6434995924,12cyclictest33-21ksoftirqd/200:20:102
134491590,4ptp4l0-21swapper/022:21:130
134491590,3ptp4l0-21swapper/021:15:010
134491590,17ptp4l13659-21vmstat22:50:283
6434995827,6cyclictest33-21ksoftirqd/223:00:142
6434995827,6cyclictest33-21ksoftirqd/219:10:232
6434995827,5cyclictest33-21ksoftirqd/220:54:482
6434995822,6cyclictest33-21ksoftirqd/200:30:212
134491580,5ptp4l0-21swapper/119:05:491
134491580,4ptp4l0-21swapper/119:36:451
134491580,4ptp4l0-21swapper/119:36:451
134491580,3ptp4l0-21swapper/123:15:531
6434995731,7cyclictest33-21ksoftirqd/200:19:272
6434995728,4cyclictest33-21ksoftirqd/221:01:222
6434995726,5cyclictest33-21ksoftirqd/222:00:262
6434995726,4cyclictest33-21ksoftirqd/222:40:552
6434995724,5cyclictest33-21ksoftirqd/222:25:002
6434995724,4cyclictest33-21ksoftirqd/223:20:262
6434995723,6cyclictest33-21ksoftirqd/222:55:232
134491570,4ptp4l0-21swapper/321:06:503
134491570,4ptp4l0-21swapper/122:30:211
134491570,3ptp4l0-21swapper/320:45:173
6434995637,17cyclictest31755-21cron20:05:002
6434995631,6cyclictest33-21ksoftirqd/223:25:362
6434995630,4cyclictest33-21ksoftirqd/221:49:162
6434995627,4cyclictest33-21ksoftirqd/220:24:402
6434995624,6cyclictest33-21ksoftirqd/223:40:162
6434995623,4cyclictest33-21ksoftirqd/219:45:002
6434995617,4cyclictest33-21ksoftirqd/222:15:142
643299560,23cyclictest30472-21taskset00:36:540
134491560,3ptp4l0-21swapper/000:31:140
6434995528,6cyclictest33-21ksoftirqd/200:35:252
6434995527,4cyclictest33-21ksoftirqd/221:54:312
134491550,4ptp4l0-21swapper/321:52:503
134491550,3ptp4l0-21swapper/320:04:573
6434995422,9cyclictest33-21ksoftirqd/222:50:192
643399540,4cyclictest23910-21irqrtprio22:05:171
134491540,4ptp4l0-21swapper/221:20:052
134491540,4ptp4l0-21swapper/200:00:252
134491540,3ptp4l0-21swapper/319:10:233
6434995326,3cyclictest33-21ksoftirqd/221:25:262
6434995323,4cyclictest33-21ksoftirqd/223:05:242
6434995321,5cyclictest33-21ksoftirqd/220:05:242
6434995319,5cyclictest33-21ksoftirqd/223:30:292
6434995317,6cyclictest33-21ksoftirqd/220:40:002
134491530,4ptp4l0-21swapper/323:20:483
134491530,4ptp4l0-21swapper/320:27:393
6434995224,4cyclictest33-21ksoftirqd/221:14:222
6434995224,4cyclictest33-21ksoftirqd/221:14:222
6434995216,5cyclictest33-21ksoftirqd/222:50:002
134491520,4ptp4l0-21swapper/323:36:193
134491520,4ptp4l0-21swapper/323:08:363
134491520,4ptp4l0-21swapper/321:37:223
134491520,4ptp4l0-21swapper/300:34:033
134491520,3ptp4l0-21swapper/321:55:123
134491520,3ptp4l0-21swapper/321:02:263
6434995120,4cyclictest33-21ksoftirqd/220:25:232
6434995120,3cyclictest33-21ksoftirqd/223:15:582
643299512,13cyclictest0-21swapper/022:00:140
134491510,5ptp4l0-21swapper/019:08:280
134491510,4ptp4l0-21swapper/322:01:273
134491510,3ptp4l0-21swapper/300:13:353
134491510,3ptp4l0-21swapper/022:56:520
6434995016,4cyclictest33-21ksoftirqd/222:13:492
134491500,4ptp4l0-21swapper/323:33:443
134491500,4ptp4l0-21swapper/322:36:423
134491500,3ptp4l0-21swapper/300:25:273
6434994920,3cyclictest33-21ksoftirqd/200:25:272
643299490,23cyclictest32254-21df_abs20:05:160
643499483,3cyclictest33-21ksoftirqd/221:30:142
134491480,7ptp4l0-21swapper/319:16:043
134491480,3ptp4l0-21swapper/321:31:393
134491480,3ptp4l0-21swapper/021:03:220
134491480,11ptp4l0-21swapper/122:25:171
6434994742,3cyclictest33-21ksoftirqd/221:40:002
643499472,4cyclictest0-21swapper/219:49:312
643399471,2cyclictest0-21swapper/120:45:191
134491470,7ptp4l231rcuc/119:40:271
134491470,4ptp4l0-21swapper/319:22:283
134491470,3ptp4l0-21swapper/322:58:403
134491470,12ptp4l0-21swapper/023:00:150
6435994641,3cyclictest30143-21cron23:30:003
134491460,3ptp4l0-21swapper/323:58:513
134491460,3ptp4l0-21swapper/323:48:363
134491460,3ptp4l0-21swapper/123:59:281
134491460,11ptp4l0-21swapper/019:25:170
134491450,4ptp4l5224-21apt-get23:45:121
134491450,4ptp4l0-21swapper/322:47:513
134491450,4ptp4l0-21swapper/320:56:193
134491450,4ptp4l0-21swapper/320:21:043
134491450,3ptp4l0-21swapper/322:14:583
134491450,3ptp4l0-21swapper/120:03:031
134491450,11ptp4l0-21swapper/119:20:571
134491450,10ptp4l0-21swapper/020:55:290
134491440,5ptp4l29640-21apt-get21:10:131
134491440,5ptp4l29640-21apt-get21:10:131
134491440,5ptp4l0-21swapper/123:51:251
134491440,4ptp4l27392-21apt-get19:55:130
134491440,4ptp4l15670-21apt-get19:30:111
134491440,3ptp4l23115-21apt-get22:05:113
134491440,3ptp4l0-21swapper/321:12:353
134491440,3ptp4l0-21swapper/321:12:353
134491440,3ptp4l0-21swapper/023:46:560
134491440,3ptp4l0-21swapper/021:06:250
134491440,10ptp4l0-21swapper/100:19:501
643499432,2cyclictest121rcu_preempt22:32:202
643299431,25cyclictest134491ptp4l19:51:260
643299431,20cyclictest8075-21timerwakeupswit21:30:270
134491430,9ptp4l241ktimersoftd/122:19:591
134491430,9ptp4l0-21swapper/000:22:030
134491430,7ptp4l0-21swapper/319:27:273
134491430,5ptp4l19787-21ls21:55:251
134491430,5ptp4l0-21swapper/120:25:261
134491430,5ptp4l0-21swapper/023:05:150
134491430,4ptp4l8936-21apt-get20:25:120
134491430,4ptp4l21786-21apt-get00:20:111
134491430,4ptp4l21781-21python20:50:271
134491430,4ptp4l11925-21irqstats19:20:190
134491430,4ptp4l0-21swapper/320:53:583
134491430,4ptp4l0-21swapper/123:00:161
134491430,3ptp4l0-21swapper/323:15:563
134491430,3ptp4l0-21swapper/022:50:310
134491430,3ptp4l0-21swapper/000:10:330
134491430,10ptp4l0-21swapper/021:27:510
134491420,9ptp4l0-21swapper/023:41:500
134491420,9ptp4l0-21swapper/022:33:510
134491420,9ptp4l0-21swapper/020:03:530
134491420,6ptp4l0-21swapper/019:34:450
134491420,5ptp4l0-21swapper/121:30:261
134491420,5ptp4l0-21swapper/119:45:151
134491420,4ptp4l1858-21apt-get21:20:101
134491420,4ptp4l15225-21meminfo22:55:201
134491420,4ptp4l12365-21apt-get00:00:151
134491420,4ptp4l0-21swapper/323:43:143
134491420,4ptp4l0-21swapper/319:43:273
134491420,4ptp4l0-21swapper/121:25:241
134491420,2ptp4l401ktimersoftd/319:58:363
643399411,3cyclictest134491ptp4l00:25:151
134491410,5ptp4l0-21swapper/322:15:183
134491410,5ptp4l0-21swapper/320:15:123
134491410,5ptp4l0-21swapper/300:20:213
134491410,5ptp4l0-21swapper/123:35:151
134491410,5ptp4l0-21swapper/121:05:121
134491410,5ptp4l0-21swapper/119:55:231
134491410,5ptp4l0-21swapper/119:18:581
134491410,5ptp4l0-21swapper/023:31:000
134491410,5ptp4l0-21swapper/020:30:260
134491410,4ptp4l709-21ps21:15:243
134491410,4ptp4l6905-21apt-get22:40:021
134491410,4ptp4l5962-21ntp_states22:35:230
134491410,4ptp4l23326-21df22:05:130
134491410,4ptp4l20028-21iostat00:15:173
134491410,4ptp4l16329-21users00:05:293
134491410,4ptp4l14327-21memory19:25:191
134491410,4ptp4l12930-21meminfo22:50:201
134491410,4ptp4l12906-21users20:30:303
134491410,4ptp4l0-21swapper/322:20:213
134491410,4ptp4l0-21swapper/319:33:233
134491410,4ptp4l0-21swapper/122:45:171
134491410,4ptp4l0-21swapper/120:10:181
134491410,4ptp4l0-21swapper/119:10:011
134491410,4ptp4l0-21swapper/022:27:480
134491410,4ptp4l0-21swapper/021:35:210
134491410,4ptp4l0-21swapper/021:20:170
134491410,4ptp4l0-21swapper/020:14:370
134491410,3ptp4l32539-21apt-get22:25:103
643399402,26cyclictest0-21swapper/122:12:531
643399401,3cyclictest11605-21/usr/sbin/munin20:30:161
643299400,11cyclictest134491ptp4l20:35:390
134491400,5ptp4l23734-21cat20:55:201
134491400,5ptp4l0-21swapper/322:30:173
134491400,5ptp4l0-21swapper/321:40:123
134491400,5ptp4l0-21swapper/321:40:123
134491400,5ptp4l0-21swapper/321:25:113
134491400,5ptp4l0-21swapper/320:40:163
134491400,5ptp4l0-21swapper/123:12:581
134491400,5ptp4l0-21swapper/122:20:161
134491400,5ptp4l0-21swapper/121:41:091
134491400,5ptp4l0-21swapper/121:41:091
134491400,5ptp4l0-21swapper/120:05:281
134491400,5ptp4l0-21swapper/000:18:590
134491400,4ptp4l17109-21ntp_states21:50:221
134491400,4ptp4l14119-21hddtemp_smartct21:45:141
134491400,4ptp4l0-21swapper/320:35:233
134491400,4ptp4l0-21swapper/121:00:221
134491400,4ptp4l0-21swapper/119:54:071
134491400,4ptp4l0-21swapper/023:16:010
134491400,4ptp4l0-21swapper/020:50:510
134491400,4ptp4l0-21swapper/020:46:060
134491400,4ptp4l0-21swapper/020:20:250
134491400,4ptp4l0-21swapper/019:40:010
134491400,4ptp4l0-21swapper/019:36:570
134491400,4ptp4l0-21swapper/019:36:570
134491400,4ptp4l0-21swapper/019:17:130
134491400,4ptp4l0-21swapper/019:10:230
134491400,3ptp4l28276-21iostat_ios22:15:170
134491400,3ptp4l25801-21apt-get23:20:111
134491400,3ptp4l13233-21apt-get21:45:003
134491400,3ptp4l12365-21apt-get00:00:150
6433993934,3cyclictest25-21ksoftirqd/100:15:001
134491390,5ptp4l848-21sendmail_mailqu20:05:273
134491390,5ptp4l0-21swapper/321:20:563
134491390,5ptp4l0-21swapper/123:40:561
134491390,5ptp4l0-21swapper/123:33:561
134491390,5ptp4l0-21swapper/123:26:591
134491390,5ptp4l0-21swapper/122:00:271
134491390,5ptp4l0-21swapper/120:21:591
134491390,5ptp4l0-21swapper/120:16:171
134491390,5ptp4l0-21swapper/100:33:151
134491390,5ptp4l0-21swapper/023:10:150
134491390,5ptp4l0-21swapper/000:06:070
134491390,4ptp4l32470-21if_err_enp1s021:15:171
134491390,4ptp4l22784-21/usr/sbin/munin19:45:133
134491390,4ptp4l0-21swapper/323:13:033
134491390,4ptp4l0-21swapper/320:10:153
134491390,4ptp4l0-21swapper/319:50:123
134491390,4ptp4l0-21swapper/319:35:163
134491390,4ptp4l0-21swapper/319:35:163
134491390,4ptp4l0-21swapper/300:35:133
134491390,4ptp4l0-21swapper/123:05:451
134491390,4ptp4l0-21swapper/122:35:241
134491390,4ptp4l0-21swapper/121:35:251
134491390,4ptp4l0-21swapper/120:40:251
134491390,4ptp4l0-21swapper/120:35:311
134491390,4ptp4l0-21swapper/023:55:100
134491390,4ptp4l0-21swapper/023:50:150
134491390,4ptp4l0-21swapper/023:23:560
134491390,4ptp4l0-21swapper/022:10:140
134491390,4ptp4l0-21swapper/021:56:070
134491390,4ptp4l0-21swapper/021:51:590
134491390,4ptp4l0-21swapper/021:40:410
134491390,4ptp4l0-21swapper/021:40:410
134491390,4ptp4l0-21swapper/021:11:170
134491390,4ptp4l0-21swapper/021:11:170
134491390,4ptp4l0-21swapper/020:40:270
134491390,4ptp4l0-21swapper/019:47:520
134491390,4ptp4l0-21swapper/000:25:280
134491390,3ptp4l7730-21cstates23:50:143
134491390,3ptp4l17703-21ntp_states23:00:223
134491390,3ptp4l0-21swapper/322:40:043
134491390,3ptp4l0-21swapper/021:47:190
134491380,5ptp4l0-21swapper/023:25:160
134491380,4ptp4l0-21swapper/100:35:151
134491380,4ptp4l0-21swapper/023:35:100
134491380,3ptp4l0-21swapper/100:05:261
134491370,3ptp4l0-21swapper/022:48:120
46198300,25rtkit-daemon1456-21mactelnetd19:07:022
40462112,4sleep30-21swapper/319:05:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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