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2025-11-18 - 16:45
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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 Nov 18, 2025 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3080621360,2sleep12344199cyclictest10:50:271
39682720,6sleep20-21swapper/208:45:242
2847191670,4ptp4l0-21swapper/209:55:122
2847191670,25ptp4l2999migration/208:35:282
2847191630,20ptp4l0-21swapper/311:17:243
2847191620,4ptp4l0-21swapper/209:17:192
2847191590,4ptp4l12397-21apt-get09:05:143
2847191590,4ptp4l0-21swapper/210:25:342
2847191590,3ptp4l0-21swapper/309:39:053
2847191580,3ptp4l24759-21ntp_states08:20:231
2847191580,12ptp4l9-21ksoftirqd/010:15:190
2847191570,4ptp4l0-21swapper/209:13:102
2847191570,3ptp4l0-21swapper/108:28:291
2847191560,4ptp4l0-21swapper/210:45:232
2847191560,4ptp4l0-21swapper/110:55:101
2847191560,13ptp4l0-21swapper/207:29:332
2847191550,5ptp4l0-21swapper/211:06:382
2847191550,4ptp4l2344399cyclictest09:17:093
2847191550,4ptp4l0-21swapper/112:35:341
2847191550,4ptp4l0-21swapper/111:05:171
2847191550,3ptp4l0-21swapper/310:59:563
2847191540,5ptp4l0-21swapper/209:33:422
2847191540,4ptp4l0-21swapper/110:25:221
2847191540,4ptp4l0-21swapper/108:00:141
2847191540,3ptp4l0-21swapper/210:03:362
2847191540,3ptp4l0-21swapper/207:15:562
2847191540,3ptp4l0-21swapper/110:42:501
2847191540,3ptp4l0-21swapper/107:57:061
2847191530,4ptp4l0-21swapper/208:09:022
2847191530,4ptp4l0-21swapper/207:49:132
2847191530,4ptp4l0-21swapper/107:22:051
2847191530,3ptp4l2344399cyclictest09:48:243
2847191530,3ptp4l0-21swapper/309:50:223
2847191520,4ptp4l0-21swapper/307:36:433
2847191520,4ptp4l0-21swapper/207:57:362
2847191520,12ptp4l0-21swapper/011:37:510
2847191520,11ptp4l0-21swapper/208:14:412
2847191510,4ptp4l0-21swapper/211:55:282
2847191510,4ptp4l0-21swapper/209:05:562
2847191510,4ptp4l0-21swapper/207:06:442
2847191500,6ptp4l25-21ksoftirqd/107:08:481
2847191500,4ptp4l0-21swapper/210:30:272
2847191500,3ptp4l0-21swapper/112:00:351
2847191500,3ptp4l0-21swapper/111:01:061
2847191500,3ptp4l0-21swapper/109:03:191
2847191500,12ptp4l0-21swapper/012:39:310
2847191490,4ptp4l0-21swapper/111:45:211
2847191490,2ptp4l121rcu_preempt07:50:340
2847191490,14ptp4l0-21swapper/008:55:560
2847191480,3ptp4l0-21swapper/112:11:481
2847191480,3ptp4l0-21swapper/111:25:261
2847191470,4ptp4l11172-21apt-get11:20:072
2847191470,4ptp4l0-21swapper/108:58:361
2847191470,11ptp4l0-21swapper/109:40:251
2847191470,10ptp4l0-21swapper/211:53:462
2847191460,14ptp4l25-21ksoftirqd/107:40:221
2847191460,14ptp4l0-21swapper/007:33:120
2847191460,11ptp4l0-21swapper/211:10:272
2849491450,11getstats0-21swapper/312:17:063
2849491450,11getstats0-21swapper/312:01:203
2847191450,9ptp4l0-21swapper/207:11:562
2847191450,5ptp4l22117-21ls07:05:200
2847191450,3ptp4l0-21swapper/111:15:001
2847191450,3ptp4l0-21swapper/107:29:151
2847191450,2ptp4l0-21swapper/010:50:270
2847191450,2ptp4l0-21swapper/009:24:030
2847191450,2ptp4l0-21swapper/009:24:030
2849491440,10getstats0-21swapper/312:14:113
2849491440,10getstats0-21swapper/311:02:203
2847191440,9ptp4l0-21swapper/211:41:072
2847191440,9ptp4l0-21swapper/210:59:532
2847191440,9ptp4l0-21swapper/208:59:002
2847191440,9ptp4l0-21swapper/208:22:162
2847191440,9ptp4l0-21swapper/208:04:422
2847191440,7ptp4l9-21ksoftirqd/011:55:290
2847191440,6ptp4l31437-21ls07:25:213
2847191440,6ptp4l17997-21kworker/2:212:12:542
2847191440,4ptp4l0-21swapper/110:35:261
2847191440,10ptp4l0-21swapper/008:31:020
2847191440,10ptp4l0-21swapper/008:06:120
2849491430,11getstats0-21swapper/309:32:243
2849491430,10getstats0-21swapper/312:06:373
2849491430,10getstats0-21swapper/311:34:043
2849491430,10getstats0-21swapper/310:24:243
2849491430,10getstats0-21swapper/310:24:243
2847191430,9ptp4l0-21swapper/211:19:552
2847191430,9ptp4l0-21swapper/210:51:002
2847191430,9ptp4l0-21swapper/208:54:432
2847191430,9ptp4l0-21swapper/207:51:212
2847191430,9ptp4l0-21swapper/007:59:510
2847191430,8ptp4l0-21swapper/211:27:452
2847191430,6ptp4l0-21swapper/309:25:203
2847191430,5ptp4l23194-21ls07:10:001
2847191430,5ptp4l15503-21apt-get10:20:122
2847191430,5ptp4l15503-21apt-get10:20:122
2847191430,5ptp4l11064-21python07:50:251
2847191430,4ptp4l6048-21meminfo07:40:190
2847191430,4ptp4l25550-21apt-get11:50:141
2847191430,4ptp4l19554-21meminfo11:35:221
2847191430,4ptp4l1778-21gnome-shell07:17:583
2847191430,4ptp4l0-21swapper/212:36:072
2847191430,3ptp4l41-21ksoftirqd/311:46:243
2847191430,3ptp4l0-21swapper/107:49:341
2344099431,6cyclictest2847191ptp4l11:00:130
2849491420,9getstats0-21swapper/308:13:243
2849491420,10getstats0-21swapper/311:58:233
2849491420,10getstats0-21swapper/311:52:323
2849491420,10getstats0-21swapper/308:19:083
2847191420,9ptp4l0-21swapper/208:30:302
2847191420,8ptp4l0-21swapper/210:15:352
2847191420,4ptp4l27303-21iostat_ios09:35:230
2847191420,4ptp4l27298-21df10:45:150
2847191420,4ptp4l23391-21ls10:35:210
2847191420,4ptp4l19494-21users10:25:290
2847191420,4ptp4l17813-21iostat_ios09:15:201
2847191420,4ptp4l15288-21iostat_ios09:10:200
2847191420,4ptp4l12970-21iostat09:05:200
2847191420,4ptp4l0-21swapper/310:15:253
2847191420,4ptp4l0-21swapper/010:20:140
2847191420,4ptp4l0-21swapper/010:20:140
2847191420,4ptp4l0-21swapper/010:10:180
2847191420,3ptp4l8761-21df10:05:161
2847191420,3ptp4l8550-21apt-get10:05:142
2849491410,10getstats0-21swapper/310:26:113
2847191410,8ptp4l0-21swapper/208:29:482
2847191410,8ptp4l0-21swapper/207:39:312
2847191410,8ptp4l0-21swapper/207:33:552
2847191410,5ptp4l0-21swapper/209:45:152
2847191410,5ptp4l0-21swapper/007:20:190
2847191410,4ptp4l7424-21df12:20:161
2847191410,4ptp4l5095-21df12:15:160
2847191410,4ptp4l3766-21irqstats08:45:210
2847191410,4ptp4l30517-21diskstats12:00:170
2847191410,4ptp4l21241-21diskstats11:40:160
2847191410,4ptp4l1346-21memory07:30:211
2847191410,4ptp4l0-21swapper/211:47:092
2847191410,4ptp4l0-21swapper/111:20:281
2847191410,4ptp4l0-21swapper/108:35:151
2847191410,4ptp4l0-21swapper/011:20:360
2847191410,4ptp4l0-21swapper/010:00:160
2847191410,4ptp4l0-21swapper/009:03:120
2847191410,4ptp4l0-21swapper/007:25:220
2847191410,3ptp4l6255-21ls08:50:233
2847191410,3ptp4l5235-21ls11:05:230
2847191410,3ptp4l3901-21apt-get09:55:133
2847191410,3ptp4l28152-21ls09:35:311
2847191410,3ptp4l23234-21apt-get11:45:150
2847191410,3ptp4l15479-21ntp_states08:00:250
2847191410,3ptp4l11841-21apt-get12:30:161
2847191410,3ptp4l11300-21hddtemp_smartct10:10:181
2847191410,3ptp4l1068-21apt-get09:50:000
2847191410,3ptp4l0-21swapper/208:15:182
2847191410,2ptp4l1794-21llvmpipe-107:20:582
2847191410,10ptp4l0-21swapper/209:20:322
2847191410,10ptp4l0-21swapper/209:20:322
2847191400,8ptp4l0-21swapper/210:11:022
2847191400,5ptp4l8375-21ls10:05:001
2847191400,5ptp4l4891-21egrep12:15:161
2847191400,5ptp4l30487-21threads09:40:283
2847191400,5ptp4l12810-21fschecks_time09:05:171
2847191400,5ptp4l0-21swapper/209:26:402
2847191400,5ptp4l0-21swapper/108:45:151
2847191400,4ptp4l965-21hddtemp_smartct08:40:181
2847191400,4ptp4l3620-21/usr/sbin/munin07:35:211
2847191400,4ptp4l28757-21if_enp1s008:30:181
2847191400,4ptp4l26633-21sed07:15:230
2847191400,4ptp4l16270-21apt11:30:110
2847191400,4ptp4l1451-21/usr/sbin/munin12:05:290
2847191400,4ptp4l0-21swapper/312:30:183
2847191400,4ptp4l0-21swapper/310:51:023
2847191400,4ptp4l0-21swapper/310:45:243
2847191400,4ptp4l0-21swapper/310:32:593
2847191400,4ptp4l0-21swapper/310:05:223
2847191400,4ptp4l0-21swapper/307:21:583
2847191400,4ptp4l0-21swapper/212:31:032
2847191400,4ptp4l0-21swapper/212:21:382
2847191400,4ptp4l0-21swapper/212:19:042
2847191400,4ptp4l0-21swapper/212:06:572
2847191400,4ptp4l0-21swapper/212:03:462
2847191400,4ptp4l0-21swapper/211:31:452
2847191400,4ptp4l0-21swapper/211:00:052
2847191400,4ptp4l0-21swapper/210:42:572
2847191400,4ptp4l0-21swapper/209:51:442
2847191400,4ptp4l0-21swapper/208:40:282
2847191400,4ptp4l0-21swapper/207:40:242
2847191400,4ptp4l0-21swapper/111:40:201
2847191400,4ptp4l0-21swapper/110:45:281
2847191400,4ptp4l0-21swapper/110:30:091
2847191400,4ptp4l0-21swapper/108:50:261
2847191400,4ptp4l0-21swapper/108:05:221
2847191400,4ptp4l0-21swapper/012:30:170
2847191400,4ptp4l0-21swapper/012:25:060
2847191400,4ptp4l0-21swapper/012:20:170
2847191400,4ptp4l0-21swapper/011:25:190
2847191400,4ptp4l0-21swapper/011:17:450
2847191400,4ptp4l0-21swapper/011:10:480
2847191400,4ptp4l0-21swapper/010:58:080
2847191400,4ptp4l0-21swapper/009:41:010
2847191400,4ptp4l0-21swapper/009:33:480
2847191400,4ptp4l0-21swapper/009:28:340
2847191400,4ptp4l0-21swapper/008:52:320
2847191400,4ptp4l0-21swapper/008:40:160
2847191400,4ptp4l0-21swapper/008:28:060
2847191400,4ptp4l0-21swapper/008:17:500
2847191400,4ptp4l0-21swapper/007:49:380
2847191400,3ptp4l4215-21df_inode09:55:150
2847191400,3ptp4l30787-21users09:40:302
2847191400,3ptp4l2783-21df12:10:150
2847191400,3ptp4l24783-21apt-get10:40:150
2847191400,3ptp4l1068-21apt-get09:50:030
2847191400,3ptp4l10079-21memory11:15:221
2847191400,3ptp4l0-21swapper/310:01:553
2847191400,3ptp4l0-21swapper/309:20:273
2847191400,3ptp4l0-21swapper/309:20:273
2847191390,7ptp4l0-21swapper/008:35:280
2847191390,5ptp4l0-21swapper/311:40:583
2847191390,5ptp4l0-21swapper/311:38:043
2847191390,5ptp4l0-21swapper/307:49:363
2847191390,5ptp4l0-21swapper/210:35:292
2847191390,4ptp4l13346-21kworker/3:009:13:113
2847191390,4ptp4l0-21swapper/311:25:083
2847191390,4ptp4l0-21swapper/311:20:023
2847191390,4ptp4l0-21swapper/311:13:303
2847191390,4ptp4l0-21swapper/311:05:203
2847191390,4ptp4l0-21swapper/310:38:513
2847191390,4ptp4l0-21swapper/308:55:263
2847191390,4ptp4l0-21swapper/308:38:323
2847191390,4ptp4l0-21swapper/308:00:403
2847191390,4ptp4l0-21swapper/307:56:443
2847191390,4ptp4l0-21swapper/307:10:303
2847191390,4ptp4l0-21swapper/211:37:022
2847191390,4ptp4l0-21swapper/209:39:522
2847191390,4ptp4l0-21swapper/209:02:132
2847191390,4ptp4l0-21swapper/112:25:101
2847191390,4ptp4l0-21swapper/111:57:371
2847191390,4ptp4l0-21swapper/111:30:261
2847191390,4ptp4l0-21swapper/110:20:241
2847191390,4ptp4l0-21swapper/110:20:241
2847191390,4ptp4l0-21swapper/110:18:021
2847191390,4ptp4l0-21swapper/109:55:231
2847191390,4ptp4l0-21swapper/109:34:331
2847191390,4ptp4l0-21swapper/109:26:451
2847191390,4ptp4l0-21swapper/108:15:241
2847191390,4ptp4l0-21swapper/107:18:571
2847191390,4ptp4l0-21swapper/010:30:250
2847191390,4ptp4l0-21swapper/010:05:280
2847191390,4ptp4l0-21swapper/008:20:110
2847191390,4ptp4l0-21swapper/007:38:120
2847191390,4ptp4l0-21swapper/007:10:330
2847191390,3ptp4l10860-21apt-get10:10:143
2847191390,3ptp4l0-21swapper/310:44:363
2847191390,3ptp4l0-21swapper/309:03:253
2847191390,3ptp4l0-21swapper/109:51:001
2847191390,3ptp4l0-21swapper/109:10:011
2847191390,3ptp4l0-21swapper/108:10:141
2847191390,3ptp4l0-21swapper/011:54:090
2849491380,10getstats0-21swapper/312:29:233
2847191380,4ptp4l0-21swapper/308:45:293
2847191380,4ptp4l0-21swapper/308:42:223
2847191380,4ptp4l0-21swapper/308:21:343
2847191380,4ptp4l0-21swapper/308:06:443
2847191380,4ptp4l0-21swapper/307:51:103
2847191380,3ptp4l730-21iostat_ios12:05:211
2847191380,3ptp4l27183-21processes08:25:283
2847191380,3ptp4l0-21swapper/312:22:003
2847191380,3ptp4l0-21swapper/212:25:182
2847191380,3ptp4l0-21swapper/109:48:041
2847191380,3ptp4l0-21swapper/009:15:250
2847191380,3ptp4l0-21swapper/008:11:200
2847191370,4ptp4l0-21swapper/308:30:543
2847191370,3ptp4l0-21swapper/307:30:273
2847191370,3ptp4l0-21swapper/109:20:151
2847191370,3ptp4l0-21swapper/109:20:141
2847191360,3ptp4l0-21swapper/307:43:283
2847191360,3ptp4l0-21swapper/307:05:013
2847191350,3ptp4l0-21swapper/312:37:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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