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2025-10-15 - 03:14
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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 Tue Oct 14, 2025 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191650,5ptp4l0-21swapper/210:10:152
2847191630,4ptp4l0-21swapper/212:25:262
2847191620,3ptp4l14336-21users11:15:280
2847191610,21ptp4l0-21swapper/209:40:572
2847191590,4ptp4l4240-21phc2sys-jitter09:45:280
2847191580,3ptp4l0-21swapper/011:37:180
2847191580,19ptp4l9-21ksoftirqd/008:15:150
2847191570,3ptp4l0-21swapper/011:00:160
2847191570,2ptp4l22820-21latency_hist08:09:591
2847191560,5ptp4l0-21swapper/109:25:171
2847191560,4ptp4l0-21swapper/212:17:132
2847191560,4ptp4l0-21swapper/212:17:132
2847191560,3ptp4l0-21swapper/212:30:242
2847191560,3ptp4l0-21swapper/107:25:161
2847191560,17ptp4l13456-21taskset08:58:330
2847191560,16ptp4l0-21swapper/008:52:460
2847191550,3ptp4l0-21swapper/112:25:121
2847191540,4ptp4l0-21swapper/210:28:272
2847191540,4ptp4l0-21swapper/009:09:550
2847191540,3ptp4l0-21swapper/210:35:542
2847191540,3ptp4l0-21swapper/210:35:542
2847191540,3ptp4l0-21swapper/110:15:131
2847191540,3ptp4l0-21swapper/107:57:421
2847191530,4ptp4l0-21swapper/212:07:522
2847191530,4ptp4l0-21swapper/111:05:131
2847191530,4ptp4l0-21swapper/107:51:311
2847191530,4ptp4l0-21swapper/010:35:260
2847191530,4ptp4l0-21swapper/010:35:250
2847191530,4ptp4l0-21swapper/009:55:550
2847191530,3ptp4l7369-21taskset09:54:312
2847191530,3ptp4l0-21swapper/209:25:472
263062530,6sleep10-21swapper/110:35:001
2847191520,4ptp4l0-21swapper/109:50:391
2847191520,4ptp4l0-21swapper/012:20:130
2847191520,4ptp4l0-21swapper/011:59:190
2847191520,3ptp4l0-21swapper/010:21:380
2847191520,10ptp4l0-21swapper/011:49:060
2847191510,4ptp4l0-21swapper/108:48:521
2847191510,4ptp4l0-21swapper/107:33:411
2847191510,4ptp4l0-21swapper/010:52:050
2847191510,4ptp4l0-21swapper/010:07:360
2847191510,4ptp4l0-21swapper/010:07:360
2847191510,4ptp4l0-21swapper/009:40:150
2847191510,4ptp4l0-21swapper/007:45:460
2847191510,3ptp4l0-21swapper/209:15:172
2847191510,3ptp4l0-21swapper/107:20:071
2847191510,11ptp4l0-21swapper/112:00:281
2847191500,4ptp4l0-21swapper/210:45:332
2847191500,4ptp4l0-21swapper/210:31:482
2847191500,4ptp4l0-21swapper/210:06:072
2847191500,4ptp4l0-21swapper/210:06:072
2847191500,4ptp4l0-21swapper/111:55:221
2847191500,4ptp4l0-21swapper/108:51:181
2847191500,4ptp4l0-21swapper/011:28:170
2847191500,4ptp4l0-21swapper/010:58:350
2847191500,4ptp4l0-21swapper/010:14:070
2847191500,4ptp4l0-21swapper/009:17:520
2847191500,4ptp4l0-21swapper/008:42:070
2847191500,3ptp4l0-21swapper/209:20:242
2847191500,3ptp4l0-21swapper/108:00:281
2847191500,3ptp4l0-21swapper/008:11:140
227352500,2sleep322739-21irqrtprio11:35:203
2847191490,5ptp4l0-21swapper/107:06:211
2847191490,4ptp4l0-21swapper/208:38:572
2847191490,4ptp4l0-21swapper/207:39:102
2847191490,4ptp4l0-21swapper/110:43:341
2847191490,4ptp4l0-21swapper/107:11:101
2847191490,4ptp4l0-21swapper/011:13:420
2847191490,4ptp4l0-21swapper/009:01:030
2847191490,3ptp4l0-21swapper/108:13:531
2847191490,12ptp4l0-21swapper/112:10:241
2847191490,12ptp4l0-21swapper/111:16:391
2847191480,5ptp4l0-21swapper/109:35:561
2847191480,4ptp4l0-21swapper/309:35:033
2847191480,4ptp4l0-21swapper/207:49:102
2847191480,4ptp4l0-21swapper/111:23:071
2847191480,3ptp4l0-21swapper/010:25:210
2847191480,13ptp4l23196-21dpkg09:20:001
2847191480,10ptp4l0-21swapper/012:30:130
2847191470,4ptp4l30538-21taskset10:40:563
2847191470,4ptp4l0-21swapper/211:33:262
2847191470,4ptp4l0-21swapper/007:05:250
2847191470,3ptp4l0-21swapper/110:21:091
2847191470,3ptp4l0-21swapper/011:50:210
2847191470,3ptp4l0-21swapper/009:23:110
2847191470,3ptp4l0-21swapper/007:50:570
2847191460,5ptp4l0-21swapper/312:35:163
2847191460,4ptp4l0-21swapper/109:00:021
2847191460,3ptp4l0-21swapper/008:21:540
2847191450,4ptp4l0-21swapper/109:58:321
2847191450,4ptp4l0-21swapper/107:39:571
2847191450,4ptp4l0-21swapper/008:01:440
2847191450,3ptp4l0-21swapper/212:12:442
2847191450,3ptp4l0-21swapper/208:53:512
2847191440,11ptp4l15974-21sensors_temp10:10:271
2849491430,11getstats0-21swapper/307:54:533
2847191430,8ptp4l0-21swapper/211:17:382
2847191430,4ptp4l0-21swapper/009:53:220
2847191430,3ptp4l7231-21ls11:00:282
2847191430,10ptp4l0-21swapper/211:24:482
2849491420,9getstats0-21swapper/307:23:033
2849491420,10getstats0-21swapper/312:05:023
2847191420,9ptp4l0-21swapper/210:56:142
2847191420,9ptp4l0-21swapper/209:45:332
2847191420,9ptp4l0-21swapper/207:41:242
2847191420,5ptp4l2177-21ls09:40:301
2847191420,5ptp4l0-21swapper/312:10:223
2847191420,5ptp4l0-21swapper/310:20:123
2847191420,5ptp4l0-21swapper/310:20:003
2847191420,5ptp4l0-21swapper/108:35:141
2847191420,4ptp4l4596-21apt-get08:40:173
2847191420,4ptp4l28706-21df_inode09:30:171
2847191420,4ptp4l2844-21iostat_ios08:35:190
2847191420,4ptp4l25854-21iostat08:15:201
2847191420,4ptp4l16925-21apt-get10:15:122
2847191420,4ptp4l11526-21apt-get08:55:132
2847191420,4ptp4l0-21swapper/207:55:132
2847191420,3ptp4l0-21swapper/207:52:172
2847191420,3ptp4l0-21swapper/012:01:420
41798410,10rtkit-daemon0-21swapper/311:56:263
2849491410,9getstats0-21swapper/307:41:263
2849491410,10getstats0-21swapper/312:01:103
2849491410,10getstats0-21swapper/311:23:043
2849491410,10getstats0-21swapper/311:15:183
2847191410,5ptp4l0-21swapper/310:30:313
2847191410,5ptp4l0-21swapper/308:45:183
2847191410,5ptp4l0-21swapper/108:20:191
2847191410,5ptp4l0-21swapper/010:00:190
2847191410,5ptp4l0-21swapper/009:35:200
2847191410,4ptp4l27775-21df_inode07:10:140
2847191410,4ptp4l20177-21iostat_ios11:30:181
2847191410,4ptp4l17513-21iostat_ios10:15:180
2847191410,4ptp4l0-21swapper/112:09:001
2847191410,4ptp4l0-21swapper/012:35:200
2847191410,4ptp4l0-21swapper/009:25:150
2847191410,4ptp4l0-21swapper/008:30:250
2847191410,4ptp4l0-21swapper/007:41:260
2847191410,4ptp4l0-21swapper/007:32:190
2847191410,3ptp4l669-21apt-get09:40:163
2847191410,3ptp4l32068-21ls10:45:201
2847191410,3ptp4l30525-21ls11:50:371
2847191410,3ptp4l2133-21apt-get07:25:120
2847191410,3ptp4l18241-21apt-get09:10:030
2847191410,3ptp4l0-21swapper/210:24:092
2847191410,3ptp4l0-21swapper/111:25:221
2847191410,3ptp4l0-21swapper/007:36:340
2849491400,9getstats0-21swapper/308:13:393
2847191400,6ptp4l0-21swapper/110:00:141
2847191400,5ptp4l2838-21tail12:00:302
2847191400,5ptp4l0-21swapper/311:10:153
2847191400,5ptp4l0-21swapper/307:26:233
2847191400,5ptp4l0-21swapper/211:40:122
2847191400,5ptp4l0-21swapper/211:35:212
2847191400,5ptp4l0-21swapper/208:04:342
2847191400,5ptp4l0-21swapper/207:30:242
2847191400,5ptp4l0-21swapper/107:40:161
2847191400,4ptp4l9112-21memory12:15:200
2847191400,4ptp4l9112-21memory12:15:200
2847191400,4ptp4l7862-21meminfo08:45:230
2847191400,4ptp4l31078-21diskstats09:35:162
2847191400,4ptp4l25532-21/usr/sbin/munin11:40:251
2847191400,4ptp4l20643-21/usr/sbin/munin08:05:263
2847191400,4ptp4l0-21swapper/310:25:003
2847191400,4ptp4l0-21swapper/309:30:343
2847191400,4ptp4l0-21swapper/309:25:203
2847191400,4ptp4l0-21swapper/212:38:502
2847191400,4ptp4l0-21swapper/211:06:092
2847191400,4ptp4l0-21swapper/210:50:542
2847191400,4ptp4l0-21swapper/209:33:242
2847191400,4ptp4l0-21swapper/209:02:172
2847191400,4ptp4l0-21swapper/208:40:052
2847191400,4ptp4l0-21swapper/208:31:362
2847191400,4ptp4l0-21swapper/208:08:002
2847191400,4ptp4l0-21swapper/207:14:012
2847191400,4ptp4l0-21swapper/110:50:241
2847191400,4ptp4l0-21swapper/110:38:251
2847191400,4ptp4l0-21swapper/110:38:251
2847191400,4ptp4l0-21swapper/110:25:201
2847191400,4ptp4l0-21swapper/109:10:151
2847191400,4ptp4l0-21swapper/012:14:490
2847191400,4ptp4l0-21swapper/011:43:310
2847191400,4ptp4l0-21swapper/011:33:400
2847191400,4ptp4l0-21swapper/011:22:370
2847191400,4ptp4l0-21swapper/011:05:100
2847191400,4ptp4l0-21swapper/010:40:190
2847191400,4ptp4l0-21swapper/010:30:130
2847191400,4ptp4l0-21swapper/009:30:260
2847191400,3ptp4l4019-21memory09:45:241
2847191400,3ptp4l32605-21hddtemp_smartct07:20:160
2847191400,3ptp4l17942-21df_inode12:35:161
2847191400,3ptp4l16454-21hddtemp_smartct07:55:170
2847191400,3ptp4l1468-21ls08:30:311
2847191400,3ptp4l13445-21hddtemp_smartct12:25:150
2847191400,3ptp4l12129-21ls12:20:283
2847191400,3ptp4l0-21swapper/109:20:181
2847191390,5ptp4l0-21swapper/307:45:213
2847191390,5ptp4l0-21swapper/212:20:272
2847191390,4ptp4l32006-21sshd08:29:431
2847191390,4ptp4l0-21swapper/312:30:223
2847191390,4ptp4l0-21swapper/312:17:493
2847191390,4ptp4l0-21swapper/312:17:493
2847191390,4ptp4l0-21swapper/311:45:423
2847191390,4ptp4l0-21swapper/311:08:483
2847191390,4ptp4l0-21swapper/311:02:193
2847191390,4ptp4l0-21swapper/310:46:333
2847191390,4ptp4l0-21swapper/310:35:223
2847191390,4ptp4l0-21swapper/310:35:223
2847191390,4ptp4l0-21swapper/310:12:443
2847191390,4ptp4l0-21swapper/310:06:243
2847191390,4ptp4l0-21swapper/310:06:243
2847191390,4ptp4l0-21swapper/310:01:133
2847191390,4ptp4l0-21swapper/309:55:243
2847191390,4ptp4l0-21swapper/309:45:563
2847191390,4ptp4l0-21swapper/309:15:113
2847191390,4ptp4l0-21swapper/309:05:103
2847191390,4ptp4l0-21swapper/308:51:163
2847191390,4ptp4l0-21swapper/308:35:313
2847191390,4ptp4l0-21swapper/308:32:073
2847191390,4ptp4l0-21swapper/211:48:012
2847191390,4ptp4l0-21swapper/211:13:402
2847191390,4ptp4l0-21swapper/210:43:392
2847191390,4ptp4l0-21swapper/209:55:272
2847191390,4ptp4l0-21swapper/209:06:292
2847191390,4ptp4l0-21swapper/208:47:312
2847191390,4ptp4l0-21swapper/208:25:012
2847191390,4ptp4l0-21swapper/112:30:161
2847191390,4ptp4l0-21swapper/111:45:151
2847191390,4ptp4l0-21swapper/111:35:021
2847191390,4ptp4l0-21swapper/111:00:131
2847191390,4ptp4l0-21swapper/110:55:211
2847191390,4ptp4l0-21swapper/110:09:561
2847191390,4ptp4l0-21swapper/110:09:561
2847191390,4ptp4l0-21swapper/109:09:081
2847191390,4ptp4l0-21swapper/108:44:001
2847191390,4ptp4l0-21swapper/107:45:141
2847191390,4ptp4l0-21swapper/107:16:221
2847191390,4ptp4l0-21swapper/012:05:080
2847191390,4ptp4l0-21swapper/010:47:020
2847191390,4ptp4l0-21swapper/008:25:120
2847191390,4ptp4l0-21swapper/008:06:560
2847191390,4ptp4l0-21swapper/007:15:210
2847191390,3ptp4l30881-21strings07:15:203
2847191390,3ptp4l11836-21df_inode08:55:161
2847191390,3ptp4l0-21swapper/208:13:322
2847191390,3ptp4l0-21swapper/111:11:381
41798380,4rtkit-daemon0-21swapper/309:10:283
2847191380,4ptp4l9740-21sed12:15:281
2847191380,4ptp4l9740-21sed12:15:281
2847191380,4ptp4l0-21swapper/312:26:263
2847191380,4ptp4l0-21swapper/311:52:223
2847191380,4ptp4l0-21swapper/311:26:103
2847191380,4ptp4l0-21swapper/310:55:573
2847191380,4ptp4l0-21swapper/310:53:283
2847191380,4ptp4l0-21swapper/309:22:233
2847191380,4ptp4l0-21swapper/308:55:063
2847191380,4ptp4l0-21swapper/308:28:263
2847191380,4ptp4l0-21swapper/308:20:133
2847191380,4ptp4l0-21swapper/308:16:433
2847191380,4ptp4l0-21swapper/308:02:373
2847191380,4ptp4l0-21swapper/307:55:113
2847191380,4ptp4l0-21swapper/307:39:113
2847191380,4ptp4l0-21swapper/307:34:113
2847191380,4ptp4l0-21swapper/307:10:173
2847191380,4ptp4l0-21swapper/211:58:302
2847191380,4ptp4l0-21swapper/211:53:392
2847191380,4ptp4l0-21swapper/211:26:482
2847191380,4ptp4l0-21swapper/209:12:072
2847191380,4ptp4l0-21swapper/208:22:352
2847191380,4ptp4l0-21swapper/207:25:162
2847191380,4ptp4l0-21swapper/207:23:042
2847191380,4ptp4l0-21swapper/207:16:452
2847191380,4ptp4l0-21swapper/112:20:011
2847191380,3ptp4l0-21swapper/311:44:143
2847191380,3ptp4l0-21swapper/309:54:263
2847191380,3ptp4l0-21swapper/309:02:443
2847191380,3ptp4l0-21swapper/210:00:102
2847191370,3ptp4l0-21swapper/311:30:223
2847191370,2ptp4l0-21swapper/208:15:152
250742214,9sleep325089-21apt-get07:05:143
269172123,4sleep20-21swapper/207:07:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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