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2025-07-04 - 18:56
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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 Jul 04, 2025 12:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2843121580,5sleep31704299cyclictest12:10:243
2847191660,5ptp4l0-21swapper/211:35:152
223142650,7sleep21704199cyclictest09:40:152
2847191640,4ptp4l1638-21wc11:15:142
2847191640,3ptp4l27447-21ntp_states07:30:221
2847191630,3ptp4l0-21swapper/209:00:212
1704299627,52cyclictest418-21timerwakeupswit10:00:253
2847191610,3ptp4l0-21swapper/308:15:293
2847191600,3ptp4l0-21swapper/210:45:012
1704299605,52cyclictest1953-21fschecks_count11:15:153
2847191590,4ptp4l0-21swapper/210:53:182
2847191580,3ptp4l0-21swapper/309:00:293
2847191580,3ptp4l0-21swapper/012:21:170
2847191580,3ptp4l0-21swapper/007:25:120
2847191570,4ptp4l0-21swapper/210:28:202
2847191570,4ptp4l0-21swapper/208:36:212
2847191570,4ptp4l0-21swapper/112:05:291
2847191570,3ptp4l0-21swapper/209:36:192
2847191570,3ptp4l0-21swapper/110:09:541
2847191570,3ptp4l0-21swapper/008:05:430
2847191560,4ptp4l0-21swapper/109:18:071
2847191560,4ptp4l0-21swapper/107:35:191
2847191560,3ptp4l0-21swapper/110:40:231
2847191560,11ptp4l0-21swapper/009:19:130
1704299565,9cyclictest26155-21cat07:30:003
2847191550,4ptp4l0-21swapper/209:59:012
2847191540,4ptp4l0-21swapper/208:52:232
2847191540,4ptp4l0-21swapper/207:36:342
2847191540,4ptp4l0-21swapper/112:39:561
2847191540,4ptp4l0-21swapper/111:01:061
2847191540,4ptp4l0-21swapper/107:26:291
2847191540,3ptp4l0-21swapper/112:23:411
2847191540,3ptp4l0-21swapper/008:30:150
1704299544,11cyclictest11787-21latency11:35:243
2847191530,4ptp4l0-21swapper/212:23:392
2847191530,4ptp4l0-21swapper/212:18:402
2847191530,4ptp4l0-21swapper/211:58:282
2847191530,3ptp4l0-21swapper/208:23:272
1704299534,10cyclictest0-21swapper/310:15:203
2847191520,4ptp4l0-21swapper/208:34:392
2847191520,4ptp4l0-21swapper/111:24:411
2847191520,4ptp4l0-21swapper/111:24:401
2847191520,4ptp4l0-21swapper/110:50:351
2847191520,4ptp4l0-21swapper/110:34:001
2847191520,4ptp4l0-21swapper/109:24:371
2847191520,4ptp4l0-21swapper/107:46:271
2847191520,12ptp4l0-21swapper/211:20:292
2847191520,12ptp4l0-21swapper/211:20:292
2847191510,9ptp4l16246-21ls07:05:480
2847191510,4ptp4l0-21swapper/110:02:491
2847191510,4ptp4l0-21swapper/108:22:211
2847191510,3ptp4l0-21swapper/110:13:171
2847191510,3ptp4l0-21swapper/109:42:181
1704299516,6cyclictest0-21swapper/309:46:283
2847191500,3ptp4l0-21swapper/209:08:212
2847191500,3ptp4l0-21swapper/110:20:531
2847191500,3ptp4l0-21swapper/108:37:061
2847191500,10ptp4l14952-21df_inode07:05:151
1704299507,6cyclictest0-21swapper/311:10:243
2847191490,5ptp4l25-21ksoftirqd/111:29:581
2847191490,4ptp4l0-21swapper/109:55:201
2847191490,4ptp4l0-21swapper/107:13:511
2847191490,4ptp4l0-21swapper/012:08:030
2847191490,3ptp4l0-21swapper/212:33:122
2847191490,3ptp4l0-21swapper/211:31:072
2847191490,16ptp4l9-21ksoftirqd/011:41:560
1704299498,16cyclictest9638-21awk11:30:243
1704299494,12cyclictest12455-21/usr/sbin/munin08:10:203
2847191480,4ptp4l0-21swapper/107:18:191
2847191480,3ptp4l0-21swapper/107:55:431
2847191470,4ptp4l0-21swapper/107:41:011
2847191460,3ptp4l1778-21gnome-shell10:55:592
1704299467,8cyclictest24683-21sshd10:55:123
1704299466,5cyclictest2849491getstats10:45:163
1704299465,6cyclictest2847191ptp4l12:20:013
2847191450,9ptp4l0-21swapper/008:29:240
2847191450,3ptp4l4209-21apt-get12:30:143
2847191450,3ptp4l121rcu_preempt11:12:240
2847191450,3ptp4l0-21swapper/109:46:311
2847191450,3ptp4l0-21swapper/108:32:391
2847191450,10ptp4l0-21swapper/209:49:262
1704299457,7cyclictest12782-21apt-get09:20:133
2849491440,11getstats0-21swapper/009:24:290
2847191440,9ptp4l0-21swapper/312:04:013
2847191440,9ptp4l0-21swapper/011:32:540
2847191440,3ptp4l22175-21apt-get10:50:143
2847191440,3ptp4l0-21swapper/209:32:382
2847191440,3ptp4l0-21swapper/208:26:152
2847191440,3ptp4l0-21swapper/109:50:011
2847191440,2ptp4l0-21swapper/009:25:500
2847191440,10ptp4l0-21swapper/208:09:042
1704299447,16cyclictest23283-21phc2sys-jitter09:40:243
1704299447,16cyclictest19472-21/usr/sbin/munin08:25:323
2847191430,9ptp4l0-21swapper/209:16:422
2847191430,9ptp4l0-21swapper/207:11:302
2847191430,8ptp4l0-21swapper/212:35:172
2847191430,5ptp4l7058-21ntp_states10:15:261
2847191430,5ptp4l28532-21ps12:10:242
2847191430,5ptp4l0-21swapper/111:35:291
2847191430,4ptp4l7187-21ls11:25:213
2847191430,4ptp4l4249-21df_inode11:20:180
2847191430,4ptp4l4249-21df_inode11:20:180
2847191430,4ptp4l18686-21ls08:20:290
2847191430,4ptp4l16915-21users10:35:301
2847191430,4ptp4l0-21swapper/109:27:111
2847191430,4ptp4l0-21swapper/011:18:100
2847191430,4ptp4l0-21swapper/010:10:090
1704299437,15cyclictest21774-21/usr/sbin/munin08:30:253
1704299436,10cyclictest0-21swapper/311:04:223
1704199431,3cyclictest0-21swapper/211:40:302
2847191420,7ptp4l9-21ksoftirqd/010:36:300
2847191420,5ptp4l0-21swapper/312:05:153
2847191420,5ptp4l0-21swapper/211:50:132
2847191420,5ptp4l0-21swapper/012:13:370
2847191420,5ptp4l0-21swapper/011:35:310
2847191420,5ptp4l0-21swapper/010:50:290
2847191420,4ptp4l7702-21apt-get09:10:030
2847191420,4ptp4l4803-21ls07:50:301
2847191420,4ptp4l18055-21apt-get11:50:133
2847191420,4ptp4l0-21swapper/211:09:362
2847191420,4ptp4l0-21swapper/109:11:171
2847191420,4ptp4l0-21swapper/108:03:271
2847191420,4ptp4l0-21swapper/107:20:271
2847191420,4ptp4l0-21swapper/010:25:160
2847191420,4ptp4l0-21swapper/008:39:010
2847191420,3ptp4l19763-21apt-get09:35:110
1704299426,5cyclictest0-21swapper/311:49:493
1704299426,10cyclictest5530-21apt-get07:55:143
2849491410,10getstats0-21swapper/111:11:211
2847191410,5ptp4l0-21swapper/309:36:013
2847191410,5ptp4l0-21swapper/308:55:353
2847191410,5ptp4l0-21swapper/207:42:502
2847191410,4ptp4l4350-21ntp_states07:50:250
2847191410,4ptp4l30576-21memory12:15:220
2847191410,4ptp4l29919-21iostat_ios11:05:190
2847191410,4ptp4l29458-21hddtemp_smartct09:55:170
2847191410,4ptp4l27288-21iostat_ios09:50:190
2847191410,4ptp4l26211-21ls10:55:300
2847191410,4ptp4l2445-21ls08:55:380
2847191410,4ptp4l17774-21df_inode09:30:151
2847191410,4ptp4l16000-21df_inode11:45:161
2847191410,4ptp4l12909-21hddtemp_smartct08:10:191
2847191410,4ptp4l0-21swapper/312:27:363
2847191410,4ptp4l0-21swapper/212:04:282
2847191410,4ptp4l0-21swapper/211:47:412
2847191410,4ptp4l0-21swapper/210:32:582
2847191410,4ptp4l0-21swapper/111:16:261
2847191410,4ptp4l0-21swapper/110:55:171
2847191410,4ptp4l0-21swapper/110:45:201
2847191410,4ptp4l0-21swapper/108:55:371
2847191410,4ptp4l0-21swapper/108:28:221
2847191410,4ptp4l0-21swapper/012:34:320
2847191410,4ptp4l0-21swapper/011:50:300
2847191410,4ptp4l0-21swapper/010:43:200
2847191410,3ptp4l924-21apt-get08:55:122
2847191410,3ptp4l8830-21iostat10:20:190
2847191410,3ptp4l5514-21ls11:20:323
2847191410,3ptp4l5514-21ls11:20:323
2847191410,3ptp4l17176-21apt-get08:20:153
2847191410,3ptp4l12472-21apt-get08:10:150
2847191410,3ptp4l0-21swapper/208:19:302
1704299416,7cyclictest2429-21ls07:45:273
1704299416,15cyclictest26405-21/usr/sbin/munin08:40:143
1704299415,7cyclictest30366-21ls11:05:213
2847191400,6ptp4l1704299cyclictest08:05:223
2847191400,5ptp4l0-21swapper/112:11:021
2847191400,5ptp4l0-21swapper/108:51:211
2847191400,5ptp4l0-21swapper/007:35:140
2847191400,4ptp4l0-21swapper/312:35:163
2847191400,4ptp4l0-21swapper/312:20:343
2847191400,4ptp4l0-21swapper/311:55:123
2847191400,4ptp4l0-21swapper/310:40:213
2847191400,4ptp4l0-21swapper/309:11:473
2847191400,4ptp4l0-21swapper/308:54:223
2847191400,4ptp4l0-21swapper/308:35:273
2847191400,4ptp4l0-21swapper/307:44:023
2847191400,4ptp4l0-21swapper/307:20:543
2847191400,4ptp4l0-21swapper/307:11:023
2847191400,4ptp4l0-21swapper/212:27:442
2847191400,4ptp4l0-21swapper/212:06:012
2847191400,4ptp4l0-21swapper/211:01:512
2847191400,4ptp4l0-21swapper/210:46:032
2847191400,4ptp4l0-21swapper/210:37:492
2847191400,4ptp4l0-21swapper/210:16:592
2847191400,4ptp4l0-21swapper/210:12:072
2847191400,4ptp4l0-21swapper/210:06:092
2847191400,4ptp4l0-21swapper/210:00:442
2847191400,4ptp4l0-21swapper/209:51:392
2847191400,4ptp4l0-21swapper/209:28:512
2847191400,4ptp4l0-21swapper/209:20:402
2847191400,4ptp4l0-21swapper/208:47:142
2847191400,4ptp4l0-21swapper/208:40:412
2847191400,4ptp4l0-21swapper/208:03:232
2847191400,4ptp4l0-21swapper/207:58:332
2847191400,4ptp4l0-21swapper/207:45:212
2847191400,4ptp4l0-21swapper/112:31:201
2847191400,4ptp4l0-21swapper/112:25:261
2847191400,4ptp4l0-21swapper/111:43:221
2847191400,4ptp4l0-21swapper/111:30:201
2847191400,4ptp4l0-21swapper/110:25:261
2847191400,4ptp4l0-21swapper/109:35:511
2847191400,4ptp4l0-21swapper/109:05:181
2847191400,4ptp4l0-21swapper/011:56:570
2847191400,4ptp4l0-21swapper/011:00:270
2847191400,4ptp4l0-21swapper/010:33:360
2847191400,4ptp4l0-21swapper/010:01:470
2847191400,4ptp4l0-21swapper/009:32:070
2847191400,4ptp4l0-21swapper/009:07:510
2847191400,4ptp4l0-21swapper/009:00:210
2847191400,4ptp4l0-21swapper/008:47:010
2847191400,4ptp4l0-21swapper/008:00:170
2847191400,4ptp4l0-21swapper/007:55:200
2847191400,4ptp4l0-21swapper/007:45:240
2847191400,4ptp4l0-21swapper/007:20:130
2847191400,3ptp4l31388-21perl07:40:180
2847191400,3ptp4l30193-21irqstats11:05:191
2847191400,3ptp4l29761-21ls08:45:221
2847191400,3ptp4l27378-21meminfo08:40:200
2847191400,3ptp4l27273-21irqstats08:40:191
2847191400,3ptp4l24614-21df09:45:160
2847191400,3ptp4l19589-21df07:15:150
2847191400,3ptp4l0-21swapper/012:27:340
2847191400,3ptp4l0-21swapper/010:06:220
1704299406,6cyclictest0-21swapper/308:47:073
2847191390,4ptp4l15128-21grep08:15:151
2847191390,4ptp4l0-21swapper/311:40:143
2847191390,4ptp4l0-21swapper/310:38:103
2847191390,4ptp4l0-21swapper/310:30:133
2847191390,4ptp4l0-21swapper/309:52:083
2847191390,4ptp4l0-21swapper/309:31:003
2847191390,4ptp4l0-21swapper/309:25:433
2847191390,4ptp4l0-21swapper/309:05:173
2847191390,4ptp4l0-21swapper/307:34:243
2847191390,4ptp4l0-21swapper/211:25:352
2847191390,4ptp4l0-21swapper/211:10:522
2847191390,4ptp4l0-21swapper/210:22:112
2847191390,4ptp4l0-21swapper/209:10:092
2847191390,4ptp4l0-21swapper/208:10:492
2847191390,4ptp4l0-21swapper/207:51:122
2847191390,4ptp4l0-21swapper/207:28:392
2847191390,4ptp4l0-21swapper/207:17:252
2847191390,4ptp4l0-21swapper/112:15:131
2847191390,4ptp4l0-21swapper/112:00:171
2847191390,4ptp4l0-21swapper/111:50:261
2847191390,4ptp4l0-21swapper/109:00:411
2847191390,4ptp4l0-21swapper/108:05:591
2847191390,4ptp4l0-21swapper/012:35:230
2847191390,4ptp4l0-21swapper/012:03:510
2847191390,4ptp4l0-21swapper/011:45:180
2847191390,4ptp4l0-21swapper/010:47:120
2847191390,4ptp4l0-21swapper/008:15:150
2847191390,3ptp4l6238-21df_inode10:15:170
2847191390,3ptp4l32393-21python08:50:270
2847191390,3ptp4l26894-21iostat07:30:170
2847191390,3ptp4l22409-21diskstats09:40:150
2847191390,3ptp4l0-21swapper/207:30:442
2847191390,3ptp4l0-21swapper/007:10:220
2847191380,4ptp4l0-21swapper/308:03:163
2847191380,4ptp4l0-21swapper/307:35:253
2847191380,4ptp4l0-21swapper/307:16:183
2847191380,3ptp4l0-21swapper/309:55:083
2847191380,3ptp4l0-21swapper/207:21:192
2847191380,3ptp4l0-21swapper/111:56:581
2847191380,3ptp4l0-21swapper/011:28:380
1704299385,7cyclictest4657-21ls07:50:283
2847191370,4ptp4l0-21swapper/310:25:153
2847191370,3ptp4l0-21swapper/309:17:083
1704299372,33cyclictest0-21swapper/310:11:483
2847191360,3ptp4l0-21swapper/310:21:453
1704299365,28cyclictest3553-21cat10:10:013
146102172,9sleep214179-21apt-get07:05:022
167472154,6sleep30-21swapper/307:10:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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