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2025-11-09 - 02:38
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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 Sat Nov 08, 2025 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191660,5ptp4l0-21swapper/108:30:271
2847191660,4ptp4l0-21swapper/107:15:211
2847191660,2ptp4l0-21swapper/112:10:011
2847191640,3ptp4l1317-21lldpd11:57:462
2847191630,8ptp4l1293-21snmpd11:47:533
2847191630,6ptp4l101ktimersoftd/011:44:400
2847191630,3ptp4l1317-21lldpd11:51:511
2847191630,27ptp4l9-21ksoftirqd/009:05:280
2847191610,3ptp4l12350-21ls10:25:302
2847191610,17ptp4l1317-21lldpd11:12:391
222302610,3sleep30-21swapper/308:30:213
2847191600,5ptp4l0-21swapper/111:19:341
2847191590,4ptp4l17515-21irqstats08:20:201
2847191590,4ptp4l0-21swapper/009:50:250
2847191590,19ptp4l6943-21/usr/sbin/munin12:35:261
2847191590,19ptp4l6943-21/usr/sbin/munin12:35:251
2847191580,6ptp4l0-21swapper/210:33:112
2847191580,5ptp4l0-21swapper/112:28:351
2847191580,4ptp4l1317-21lldpd12:06:391
2847191580,4ptp4l0-21swapper/111:45:201
2847191580,4ptp4l0-21swapper/111:42:371
2847191580,4ptp4l0-21swapper/107:30:241
2847191580,3ptp4l0-21swapper/110:18:361
2847191570,4ptp4l0-21swapper/112:20:521
2847191560,4ptp4l0-21swapper/111:35:451
2847191560,3ptp4l0-21swapper/108:15:261
2847191550,5ptp4l0-21swapper/111:22:011
2847191550,4ptp4l0-21swapper/207:19:022
2847191550,4ptp4l0-21swapper/109:30:221
2847191550,3ptp4l0-21swapper/110:56:381
2847191550,16ptp4l0-21swapper/009:45:160
2847191550,13ptp4l14833-21memory07:05:210
2847191540,5ptp4l0-21swapper/107:07:111
2847191540,4ptp4l0-21swapper/210:35:392
2847191540,4ptp4l0-21swapper/111:05:431
2847191540,4ptp4l0-21swapper/109:53:001
2847191540,4ptp4l0-21swapper/109:18:131
2847191540,4ptp4l0-21swapper/107:56:101
2847191540,10ptp4l0-21swapper/212:16:382
2847191530,4ptp4l0-21swapper/210:09:512
2847191530,4ptp4l0-21swapper/210:09:512
2847191530,4ptp4l0-21swapper/209:12:592
2847191530,4ptp4l0-21swapper/111:56:471
2847191530,4ptp4l0-21swapper/111:33:531
2847191530,3ptp4l121rcu_preempt11:29:580
2847191520,5ptp4l0-21swapper/209:08:032
2847191520,4ptp4l0-21swapper/107:12:161
2847191520,4ptp4l0-21swapper/107:12:161
2847191520,3ptp4l0-21swapper/111:27:271
2847191520,3ptp4l0-21swapper/109:45:361
2847191510,4ptp4l0-21swapper/210:54:082
2847191510,4ptp4l0-21swapper/208:07:552
2847191510,3ptp4l0-21swapper/212:11:502
2847191510,3ptp4l0-21swapper/112:15:531
2847191510,3ptp4l0-21swapper/108:51:191
2847191510,3ptp4l0-21swapper/108:25:151
2847191500,4ptp4l0-21swapper/208:46:052
2847191500,4ptp4l0-21swapper/109:11:501
2847191490,4ptp4l0-21swapper/109:42:351
2847191490,4ptp4l0-21swapper/109:38:471
2847191490,4ptp4l0-21swapper/109:22:541
2847191490,4ptp4l0-21swapper/109:00:231
2847191490,3ptp4l121rcu_preempt12:30:480
2847191490,3ptp4l0-21swapper/110:30:311
2847191490,11ptp4l0-21swapper/212:27:102
16222994936,2cyclictest2847191ptp4l11:45:002
2847191480,4ptp4l0-21swapper/211:52:232
2847191480,4ptp4l0-21swapper/207:32:132
2847191480,3ptp4l121rcu_preempt09:10:260
2847191480,14ptp4l9-21ksoftirqd/011:18:360
2847191480,12ptp4l1317-21lldpd12:33:211
2847191470,4ptp4l0-21swapper/111:02:141
2847191470,11ptp4l1267-21mailstats12:20:262
2847191470,10ptp4l1317-21lldpd11:38:492
2847191470,10ptp4l0-21swapper/207:59:422
2847191470,10ptp4l0-21swapper/007:50:220
2847191460,8ptp4l0-21swapper/009:36:040
2847191460,7ptp4l207-21systemd-journal12:00:401
2847191460,5ptp4l25396-21apt-get12:05:142
2847191460,4ptp4l25055-21ls07:25:291
2847191460,3ptp4l121rcu_preempt12:11:030
2847191460,12ptp4l0-21swapper/208:03:282
2847191460,11ptp4l0-21swapper/209:15:152
2847191460,10ptp4l0-21swapper/210:19:142
2847191450,9ptp4l0-21swapper/208:53:122
2847191450,9ptp4l0-21swapper/207:44:282
2847191450,2ptp4l0-21swapper/011:03:370
2847191450,2ptp4l0-21swapper/007:57:520
2847191450,11ptp4l15042-21irqrtprio08:15:202
2847191450,11ptp4l0-21swapper/212:39:292
2847191450,11ptp4l0-21swapper/212:39:292
2847191450,11ptp4l0-21swapper/007:20:140
2847191450,10ptp4l0-21swapper/211:19:342
2847191450,10ptp4l0-21swapper/211:05:312
2847191450,10ptp4l0-21swapper/210:59:132
2847191450,10ptp4l0-21swapper/209:21:522
2847191440,9ptp4l0-21swapper/212:30:492
2847191440,9ptp4l0-21swapper/208:33:422
2847191440,9ptp4l0-21swapper/208:26:582
2847191440,8ptp4l0-21swapper/209:57:582
2847191440,4ptp4l0-21swapper/207:45:302
2847191440,10ptp4l0-21swapper/209:50:262
2847191440,10ptp4l0-21swapper/207:50:302
16223994433,2cyclictest41-21ksoftirqd/312:00:003
16223994422,4cyclictest41-21ksoftirqd/312:00:143
2847191430,9ptp4l0-21swapper/210:04:262
2847191430,9ptp4l0-21swapper/210:04:262
2847191430,9ptp4l0-21swapper/208:57:132
2847191430,9ptp4l0-21swapper/208:35:462
2847191430,9ptp4l0-21swapper/208:24:582
2847191430,8ptp4l0-21swapper/210:12:172
2847191430,6ptp4l101ktimersoftd/010:54:450
2847191430,5ptp4l0-21swapper/211:47:432
2847191430,5ptp4l0-21swapper/211:26:302
2847191430,5ptp4l0-21swapper/211:20:122
2847191430,4ptp4l0-21swapper/011:54:260
2847191430,4ptp4l0-21swapper/011:38:210
2847191430,3ptp4l1622099cyclictest10:03:460
2847191430,3ptp4l1622099cyclictest10:03:460
2847191430,2ptp4l1317-21lldpd12:23:400
2847191430,11ptp4l0-21swapper/008:55:120
16223994329,3cyclictest41-21ksoftirqd/308:00:163
16222994330,3cyclictest33-21ksoftirqd/210:45:152
2847191420,9ptp4l207-21systemd-journal11:13:152
2847191420,8ptp4l1293-21snmpd12:37:300
2847191420,8ptp4l1293-21snmpd12:37:290
2847191420,8ptp4l1293-21snmpd11:36:083
2847191420,7ptp4l0-21swapper/011:46:100
2847191420,5ptp4l0-21swapper/211:30:262
2847191420,5ptp4l0-21swapper/207:35:282
2847191420,5ptp4l0-21swapper/109:55:111
2847191420,5ptp4l0-21swapper/109:25:201
2847191420,5ptp4l0-21swapper/007:30:190
2847191420,4ptp4l3478-21iostat_ios09:00:210
2847191420,4ptp4l24698-21ps07:25:260
2847191420,4ptp4l24221-21iostat08:35:190
2847191420,4ptp4l21304-21ntp_states10:45:380
2847191420,4ptp4l20161-21apt-get10:45:141
2847191420,4ptp4l18110-21df_inode10:40:163
2847191420,4ptp4l0-21swapper/212:00:252
2847191420,4ptp4l0-21swapper/210:20:222
2847191420,4ptp4l0-21swapper/011:05:330
2847191420,3ptp4l32609-21ls10:00:281
2847191420,3ptp4l32609-21ls10:00:281
2847191410,8ptp4l0-21swapper/010:44:330
2847191410,5ptp4l620-21ntpq11:10:240
2847191410,5ptp4l0-21swapper/308:48:213
2847191410,5ptp4l0-21swapper/110:25:201
2847191410,5ptp4l0-21swapper/108:40:151
2847191410,5ptp4l0-21swapper/009:15:240
2847191410,5ptp4l0-21swapper/007:35:160
2847191410,4ptp4l7969-21iostat_ios08:00:190
2847191410,4ptp4l31451-21irqstats08:50:200
2847191410,4ptp4l19986-21meminfo08:25:220
2847191410,4ptp4l16597-21ntp_states10:35:241
2847191410,4ptp4l11386-21users08:05:301
2847191410,4ptp4l0-21swapper/311:40:333
2847191410,4ptp4l0-21swapper/308:09:323
2847191410,4ptp4l0-21swapper/210:42:342
2847191410,4ptp4l0-21swapper/209:03:562
2847191410,4ptp4l0-21swapper/208:12:522
2847191410,4ptp4l0-21swapper/207:25:312
2847191410,4ptp4l0-21swapper/207:22:462
2847191410,4ptp4l0-21swapper/107:20:181
2847191410,4ptp4l0-21swapper/011:20:310
2847191410,4ptp4l0-21swapper/010:10:230
2847191410,3ptp4l467-21apt-get08:55:151
2847191410,3ptp4l22677-21df10:50:141
2847191410,3ptp4l13459-21df_inode10:30:160
2847191410,3ptp4l12372-21apt-get09:20:120
2847191410,3ptp4l0-21swapper/007:15:020
16223994128,3cyclictest41-21ksoftirqd/309:35:403
16223994127,4cyclictest41-21ksoftirqd/311:25:173
1622299410,4cyclictest33-21ksoftirqd/211:00:222
2847191400,6ptp4l0-21swapper/110:06:121
2847191400,6ptp4l0-21swapper/110:06:121
2847191400,5ptp4l0-21swapper/012:00:010
2847191400,5ptp4l0-21swapper/011:31:030
2847191400,5ptp4l0-21swapper/010:55:140
2847191400,5ptp4l0-21swapper/007:40:240
2847191400,4ptp4l22813-21sed09:40:210
2847191400,4ptp4l17202-21ls07:10:200
2847191400,4ptp4l17202-21ls07:10:200
2847191400,4ptp4l0-21swapper/312:25:053
2847191400,4ptp4l0-21swapper/312:15:303
2847191400,4ptp4l0-21swapper/310:59:023
2847191400,4ptp4l0-21swapper/310:25:163
2847191400,4ptp4l0-21swapper/310:07:183
2847191400,4ptp4l0-21swapper/310:07:183
2847191400,4ptp4l0-21swapper/310:01:363
2847191400,4ptp4l0-21swapper/310:01:363
2847191400,4ptp4l0-21swapper/309:40:163
2847191400,4ptp4l0-21swapper/307:59:553
2847191400,4ptp4l0-21swapper/307:53:113
2847191400,4ptp4l0-21swapper/307:31:323
2847191400,4ptp4l0-21swapper/209:45:562
2847191400,4ptp4l0-21swapper/209:40:222
2847191400,4ptp4l0-21swapper/209:35:352
2847191400,4ptp4l0-21swapper/209:30:362
2847191400,4ptp4l0-21swapper/209:26:172
2847191400,4ptp4l0-21swapper/208:41:072
2847191400,4ptp4l0-21swapper/110:20:211
2847191400,4ptp4l0-21swapper/110:12:581
2847191400,4ptp4l0-21swapper/108:45:131
2847191400,4ptp4l0-21swapper/108:10:091
2847191400,4ptp4l0-21swapper/107:53:241
2847191400,4ptp4l0-21swapper/107:46:301
2847191400,4ptp4l0-21swapper/012:16:310
2847191400,4ptp4l0-21swapper/012:06:440
2847191400,4ptp4l0-21swapper/011:55:130
2847191400,4ptp4l0-21swapper/010:20:080
2847191400,4ptp4l0-21swapper/008:47:030
2847191400,4ptp4l0-21swapper/008:30:130
2847191400,4ptp4l0-21swapper/008:20:290
2847191400,4ptp4l0-21swapper/008:05:210
2847191400,3ptp4l8051-21apt-get10:20:033
2847191400,3ptp4l29056-21df09:55:140
2847191400,3ptp4l1463-21ntp_states07:45:240
2847191400,3ptp4l12589-21iostat08:10:210
2847191400,3ptp4l11798-21meminfo10:25:220
2847191400,3ptp4l0-21swapper/012:25:020
2847191390,5ptp4l4084-21fschecks_time10:10:173
2847191390,5ptp4l0-21swapper/010:35:400
2847191390,4ptp4l28704-21unixbench_multi11:00:313
2847191390,4ptp4l26095-21grep08:40:140
2847191390,4ptp4l0-21swapper/312:33:183
2847191390,4ptp4l0-21swapper/311:30:293
2847191390,4ptp4l0-21swapper/311:22:053
2847191390,4ptp4l0-21swapper/311:18:313
2847191390,4ptp4l0-21swapper/311:05:423
2847191390,4ptp4l0-21swapper/310:32:253
2847191390,4ptp4l0-21swapper/309:55:163
2847191390,4ptp4l0-21swapper/309:50:273
2847191390,4ptp4l0-21swapper/309:22:083
2847191390,4ptp4l0-21swapper/308:23:203
2847191390,4ptp4l0-21swapper/307:45:173
2847191390,4ptp4l0-21swapper/307:16:373
2847191390,4ptp4l0-21swapper/110:40:251
2847191390,4ptp4l0-21swapper/108:36:121
2847191390,4ptp4l0-21swapper/108:00:201
2847191390,4ptp4l0-21swapper/107:40:211
2847191390,4ptp4l0-21swapper/107:38:051
2847191390,4ptp4l0-21swapper/010:16:100
2847191390,4ptp4l0-21swapper/010:05:020
2847191390,4ptp4l0-21swapper/010:05:020
2847191390,4ptp4l0-21swapper/009:30:120
2847191390,3ptp4l15119-21hddtemp_smartct09:25:160
2847191390,3ptp4l0-21swapper/308:54:563
2847191390,3ptp4l0-21swapper/109:05:221
16222993923,4cyclictest33-21ksoftirqd/207:10:232
16222993923,4cyclictest33-21ksoftirqd/207:10:232
2847191380,4ptp4l0-21swapper/312:39:053
2847191380,4ptp4l0-21swapper/312:39:043
2847191380,4ptp4l0-21swapper/312:08:233
2847191380,4ptp4l0-21swapper/311:50:253
2847191380,4ptp4l0-21swapper/311:10:343
2847191380,4ptp4l0-21swapper/309:18:553
2847191380,4ptp4l0-21swapper/308:17:063
2847191380,4ptp4l0-21swapper/307:40:013
2847191380,4ptp4l0-21swapper/307:29:403
2847191380,3ptp4l0-21swapper/308:37:513
2847191380,3ptp4l0-21swapper/008:15:420
2847191370,4ptp4l0-21swapper/312:11:473
2847191370,4ptp4l0-21swapper/309:00:343
2847191370,3ptp4l41-21ksoftirqd/308:40:143
2847191370,3ptp4l29544-21ssh07:35:273
2847191370,3ptp4l0-21swapper/312:22:243
2847191370,3ptp4l0-21swapper/310:35:263
2847191370,3ptp4l0-21swapper/310:18:123
16223993724,3cyclictest41-21ksoftirqd/309:25:223
2847191360,4ptp4l0-21swapper/308:28:123
2847191360,4ptp4l0-21swapper/308:10:133
2847191350,4ptp4l0-21swapper/310:54:123
2847191350,4ptp4l0-21swapper/309:33:263
16223993530,3cyclictest41-21ksoftirqd/307:15:003
16223993530,3cyclictest41-21ksoftirqd/307:15:003
2847191340,3ptp4l0-21swapper/308:58:403
2847191330,3ptp4l0-21swapper/309:05:213
16223993328,2cyclictest41-21ksoftirqd/309:45:193
2847191310,4ptp4l0-21swapper/309:10:383
2847191310,4ptp4l0-21swapper/307:20:043
16223993127,2cyclictest41-21ksoftirqd/310:48:533
2849691245,11phc2sys0-21swapper/307:05:123
138592245,12sleep20-21swapper/207:05:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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