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2025-11-18 - 00:30
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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 Mon Nov 17, 2025 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191810,4ptp4l0-21swapper/109:15:161
2847191680,3ptp4l0-21swapper/310:36:123
2847191650,5ptp4l0-21swapper/207:50:232
2847191650,4ptp4l5225-21ls07:55:293
2847191650,3ptp4l20974-21meminfo08:30:222
2847191640,5ptp4l0-21swapper/308:35:143
2847191620,4ptp4l0-21swapper/308:45:003
2847191610,4ptp4l0-21swapper/310:05:273
2847191610,4ptp4l0-21swapper/310:05:263
2847191610,3ptp4l0-21swapper/311:05:153
2847191600,5ptp4l0-21swapper/107:05:251
2847191590,4ptp4l0-21swapper/212:10:022
2847191590,4ptp4l0-21swapper/011:05:200
2847191590,3ptp4l0-21swapper/210:05:312
2847191590,3ptp4l0-21swapper/210:05:312
2847191590,22ptp4l0-21swapper/311:25:203
2847191580,4ptp4l0-21swapper/310:10:273
2847191580,4ptp4l0-21swapper/211:45:472
2847191580,4ptp4l0-21swapper/110:42:111
2847191580,3ptp4l0-21swapper/211:35:062
2847191570,5ptp4l0-21swapper/009:55:550
2847191570,4ptp4l0-21swapper/008:10:170
2847191570,3ptp4l0-21swapper/012:10:470
2847191560,4ptp4l0-21swapper/211:55:212
2847191560,4ptp4l0-21swapper/008:48:200
2847191560,4ptp4l0-21swapper/008:26:090
2847191560,4ptp4l0-21swapper/007:35:180
2847191560,4ptp4l0-21swapper/007:30:160
2847191560,3ptp4l0-21swapper/312:03:193
2847191560,3ptp4l0-21swapper/308:20:223
2847191550,4ptp4l0-21swapper/307:42:483
2847191550,3ptp4l0-21swapper/011:04:100
2847191540,4ptp4l0-21swapper/312:23:293
2847191540,4ptp4l0-21swapper/311:10:093
2847191540,4ptp4l0-21swapper/307:39:063
2847191540,4ptp4l0-21swapper/211:17:102
2847191540,4ptp4l0-21swapper/011:24:150
2847191540,3ptp4l0-21swapper/310:50:383
2847191540,3ptp4l0-21swapper/011:56:240
2847191530,5ptp4l0-21swapper/207:23:562
2847191530,4ptp4l0-21swapper/311:58:523
2847191530,4ptp4l0-21swapper/310:44:453
2847191530,4ptp4l0-21swapper/309:29:543
2847191530,4ptp4l0-21swapper/308:10:113
2847191530,4ptp4l0-21swapper/308:05:123
2847191530,4ptp4l0-21swapper/212:27:062
2847191530,4ptp4l0-21swapper/209:58:252
2847191530,4ptp4l0-21swapper/208:02:442
2847191530,4ptp4l0-21swapper/109:24:151
2847191530,4ptp4l0-21swapper/107:14:291
2847191530,4ptp4l0-21swapper/011:35:080
2847191530,3ptp4l0-21swapper/307:45:223
2847191520,4ptp4l0-21swapper/311:38:453
2847191520,4ptp4l0-21swapper/310:17:503
2847191520,4ptp4l0-21swapper/310:03:073
2847191520,4ptp4l0-21swapper/210:04:202
2847191520,4ptp4l0-21swapper/112:19:581
2847191520,4ptp4l0-21swapper/112:19:581
2847191520,4ptp4l0-21swapper/111:28:391
2847191520,4ptp4l0-21swapper/107:28:581
2847191520,4ptp4l0-21swapper/010:28:480
2847191520,4ptp4l0-21swapper/009:22:360
2847191520,4ptp4l0-21swapper/007:18:060
2847191520,3ptp4l0-21swapper/210:56:552
2847191520,3ptp4l0-21swapper/207:34:242
2847191520,3ptp4l0-21swapper/012:06:450
2847191510,4ptp4l0-21swapper/309:48:393
2847191510,4ptp4l0-21swapper/309:43:283
2847191510,4ptp4l0-21swapper/212:00:052
2847191510,4ptp4l0-21swapper/210:12:592
2847191510,4ptp4l0-21swapper/011:42:120
2847191510,4ptp4l0-21swapper/011:42:120
2847191510,3ptp4l0-21swapper/110:22:321
2847191510,3ptp4l0-21swapper/008:09:550
2847191500,4ptp4l0-21swapper/308:34:073
2847191500,4ptp4l0-21swapper/308:25:203
2847191500,4ptp4l0-21swapper/307:25:103
2847191500,4ptp4l0-21swapper/210:53:142
2847191500,4ptp4l0-21swapper/210:37:252
2847191500,4ptp4l0-21swapper/111:13:491
2847191500,4ptp4l0-21swapper/008:57:020
2847191500,3ptp4l0-21swapper/312:38:063
2847191500,3ptp4l0-21swapper/309:55:243
2847191500,3ptp4l0-21swapper/309:20:043
2847191500,3ptp4l0-21swapper/209:10:262
2847191500,11ptp4l0-21swapper/208:52:172
2847191490,4ptp4l0-21swapper/312:34:293
2847191490,4ptp4l0-21swapper/311:49:453
2847191490,4ptp4l0-21swapper/011:27:500
2847191490,4ptp4l0-21swapper/008:35:350
2847191490,12ptp4l0-21swapper/107:55:191
2847191480,4ptp4l0-21swapper/310:49:353
2847191480,4ptp4l0-21swapper/212:35:372
2847191480,4ptp4l0-21swapper/208:46:082
2847191480,3ptp4l0-21swapper/308:19:053
2847191470,5ptp4l18177-21ls11:50:292
2847191470,3ptp4l1498999cyclictest11:30:442
2847191470,3ptp4l0-21swapper/311:52:113
2847191470,12ptp4l0-21swapper/009:38:450
2847191470,11ptp4l0-21swapper/009:05:230
28862460,5sleep20-21swapper/211:20:132
2847191460,9ptp4l12628-21/usr/sbin/munin07:05:200
2847191460,5ptp4l0-21swapper/312:05:243
2847191460,4ptp4l31858-21apt-get08:55:132
2847191460,4ptp4l27326-21ntp_states12:10:253
2847191460,4ptp4l0-21swapper/008:24:110
2847191460,3ptp4l0-21swapper/109:10:531
2847191460,10ptp4l0-21swapper/211:07:222
2847191450,5ptp4l15396-21apt-get08:20:151
2847191450,4ptp4l5185-21ls09:05:232
2847191450,4ptp4l26343-21irqstats09:50:203
1498899453,3cyclictest121rcu_preempt08:20:001
2847191440,5ptp4l8121-21irqstats10:20:210
2847191440,5ptp4l0-21swapper/311:00:153
2847191440,5ptp4l0-21swapper/010:45:140
2847191440,5ptp4l0-21swapper/010:30:130
2847191440,4ptp4l24599-21ntp_states10:55:273
2847191440,4ptp4l1330-21ls11:15:233
2847191440,4ptp4l0-21swapper/310:30:003
2847191440,3ptp4l0-21swapper/111:17:451
2847191440,3ptp4l0-21swapper/107:49:171
2847191440,10ptp4l0-21swapper/212:16:152
2847191440,10ptp4l0-21swapper/212:16:152
1498899444,3cyclictest121rcu_preempt08:50:181
1498899442,3cyclictest121rcu_preempt11:40:001
1498799444,3cyclictest9-21ksoftirqd/010:09:050
1498799444,3cyclictest9-21ksoftirqd/010:09:050
2847191430,5ptp4l31993-21grep11:10:280
2847191430,5ptp4l0-21swapper/308:50:283
2847191430,5ptp4l0-21swapper/307:15:143
2847191430,5ptp4l0-21swapper/010:12:000
2847191430,5ptp4l0-21swapper/008:50:270
2847191430,4ptp4l7323-21irqstats09:10:210
2847191430,4ptp4l31477-21ntp_states10:00:270
2847191430,4ptp4l28565-21users07:35:302
2847191430,4ptp4l1765-21diskstats07:50:163
2847191430,4ptp4l0-21swapper/011:46:530
1498799435,4cyclictest9-21ksoftirqd/012:00:200
1498799430,5cyclictest9-21ksoftirqd/008:03:200
2847191420,6ptp4l0-21swapper/307:20:253
2847191420,5ptp4l12998-21meminfo11:40:212
2847191420,5ptp4l12998-21meminfo11:40:202
2847191420,5ptp4l0-21swapper/309:30:133
2847191420,5ptp4l0-21swapper/309:03:353
2847191420,4ptp4l29212-21apt-get07:40:162
2847191420,4ptp4l24973-21apt-get09:50:032
2847191420,4ptp4l23373-21apt-get12:05:032
2847191420,4ptp4l15433-21/usr/sbin/munin10:35:260
2847191420,4ptp4l15022-21apt-get07:10:132
2847191420,4ptp4l13635-21apt-get09:25:132
2847191420,4ptp4l0-21swapper/211:10:272
2847191420,4ptp4l0-21swapper/210:21:212
2847191420,4ptp4l0-21swapper/110:30:131
2847191420,4ptp4l0-21swapper/012:30:120
2847191420,4ptp4l0-21swapper/010:55:170
2847191420,4ptp4l0-21swapper/009:40:220
2847191420,4ptp4l0-21swapper/009:29:590
2847191420,4ptp4l0-21swapper/009:18:120
2847191420,4ptp4l0-21swapper/007:48:360
2847191420,3ptp4l6468-21apt-get09:10:133
2847191420,3ptp4l28516-21apt-get12:15:153
2847191420,3ptp4l28516-21apt-get12:15:153
2847191420,3ptp4l2779-21apt-get11:20:133
2847191420,3ptp4l21746-21hddtemp_smartct12:00:171
2847191420,3ptp4l1828-21apt-get09:00:160
2847191420,1ptp4l0-21swapper/309:05:243
1498899421,3cyclictest25-21ksoftirqd/109:02:371
1498799423,4cyclictest9-21ksoftirqd/009:34:470
1498799420,5cyclictest9-21ksoftirqd/009:50:550
1498799420,4cyclictest9-21ksoftirqd/011:30:120
2847191410,5ptp4l515-21ls07:45:282
2847191410,5ptp4l2164-21mailstats12:25:273
2847191410,5ptp4l19933-21nfs4_client10:45:241
2847191410,5ptp4l0-21swapper/311:44:413
2847191410,5ptp4l0-21swapper/311:44:413
2847191410,4ptp4l24829-21diskstats07:30:171
2847191410,4ptp4l15604-21df08:20:172
2847191410,4ptp4l0-21swapper/309:35:193
2847191410,4ptp4l0-21swapper/309:16:593
2847191410,4ptp4l0-21swapper/212:30:272
2847191410,4ptp4l0-21swapper/212:24:122
2847191410,4ptp4l0-21swapper/210:32:212
2847191410,4ptp4l0-21swapper/208:35:202
2847191410,4ptp4l0-21swapper/208:25:142
2847191410,4ptp4l0-21swapper/207:15:202
2847191410,4ptp4l0-21swapper/112:05:301
2847191410,4ptp4l0-21swapper/111:00:431
2847191410,4ptp4l0-21swapper/109:44:531
2847191410,4ptp4l0-21swapper/109:06:071
2847191410,4ptp4l0-21swapper/012:27:200
2847191410,4ptp4l0-21swapper/012:22:420
2847191410,4ptp4l0-21swapper/012:15:260
2847191410,4ptp4l0-21swapper/012:15:250
2847191410,4ptp4l0-21swapper/011:50:150
2847191410,4ptp4l0-21swapper/011:17:010
2847191410,4ptp4l0-21swapper/010:50:210
2847191410,4ptp4l0-21swapper/008:40:200
2847191410,4ptp4l0-21swapper/007:55:520
2847191410,4ptp4l0-21swapper/007:50:250
2847191410,4ptp4l0-21swapper/007:20:050
2847191410,4ptp4l0-21swapper/007:10:170
2847191410,3ptp4l24421-21ls09:45:291
2847191410,3ptp4l22283-21ntp_states10:50:251
2847191410,3ptp4l0-21swapper/209:30:272
14988994128,4cyclictest25-21ksoftirqd/111:31:111
14988994124,4cyclictest25-21ksoftirqd/108:35:251
1498899411,5cyclictest25-21ksoftirqd/109:30:531
1498799410,4cyclictest9-21ksoftirqd/008:16:440
2847191400,5ptp4l7416-21tr10:20:153
2847191400,5ptp4l0-21swapper/311:30:153
2847191400,4ptp4l6650-21taskset10:15:450
2847191400,4ptp4l20310-21sed10:45:302
2847191400,4ptp4l10898-21/usr/sbin/munin10:25:271
2847191400,4ptp4l0-21swapper/310:30:263
2847191400,4ptp4l0-21swapper/308:45:203
2847191400,4ptp4l0-21swapper/307:10:513
2847191400,4ptp4l0-21swapper/211:25:572
2847191400,4ptp4l0-21swapper/209:45:312
2847191400,4ptp4l0-21swapper/209:40:232
2847191400,4ptp4l0-21swapper/209:16:352
2847191400,4ptp4l0-21swapper/209:01:382
2847191400,4ptp4l0-21swapper/208:43:232
2847191400,4ptp4l0-21swapper/208:16:562
2847191400,4ptp4l0-21swapper/208:09:452
2847191400,4ptp4l0-21swapper/207:55:042
2847191400,4ptp4l0-21swapper/207:25:162
2847191400,4ptp4l0-21swapper/112:35:311
2847191400,4ptp4l0-21swapper/112:29:371
2847191400,4ptp4l0-21swapper/112:20:261
2847191400,4ptp4l0-21swapper/111:55:341
2847191400,4ptp4l0-21swapper/111:21:361
2847191400,4ptp4l0-21swapper/110:12:361
2847191400,4ptp4l0-21swapper/109:58:531
2847191400,4ptp4l0-21swapper/108:58:031
2847191400,4ptp4l0-21swapper/108:30:381
2847191400,4ptp4l0-21swapper/108:27:041
2847191400,4ptp4l0-21swapper/108:09:331
2847191400,4ptp4l0-21swapper/108:00:021
2847191400,4ptp4l0-21swapper/107:50:201
2847191400,4ptp4l0-21swapper/012:35:210
2847191400,4ptp4l0-21swapper/010:43:210
2847191400,4ptp4l0-21swapper/009:46:400
2847191400,4ptp4l0-21swapper/008:30:280
2847191400,4ptp4l0-21swapper/007:40:220
2847191400,3ptp4l340-21ls08:55:213
2847191400,3ptp4l30708-21/usr/sbin/munin10:00:191
2847191400,3ptp4l11968-21irqstats09:20:232
2847191400,3ptp4l0-21swapper/308:00:083
2847191400,3ptp4l0-21swapper/111:45:181
2847191400,3ptp4l0-21swapper/110:08:371
2847191400,3ptp4l0-21swapper/110:08:371
2847191400,3ptp4l0-21swapper/107:21:091
2847191400,3ptp4l0-21swapper/007:25:110
14988994025,4cyclictest25-21ksoftirqd/108:10:301
2847191390,4ptp4l0-21swapper/307:30:273
2847191390,4ptp4l0-21swapper/211:01:412
2847191390,4ptp4l0-21swapper/210:25:212
2847191390,4ptp4l0-21swapper/210:15:332
2847191390,4ptp4l0-21swapper/208:10:292
2847191390,4ptp4l0-21swapper/112:34:061
2847191390,4ptp4l0-21swapper/111:52:441
2847191390,4ptp4l0-21swapper/111:43:111
2847191390,4ptp4l0-21swapper/111:43:111
2847191390,4ptp4l0-21swapper/111:05:191
2847191390,4ptp4l0-21swapper/110:57:031
2847191390,4ptp4l0-21swapper/109:53:541
2847191390,4ptp4l0-21swapper/109:36:221
2847191390,4ptp4l0-21swapper/108:41:351
2847191390,4ptp4l0-21swapper/107:37:491
2847191390,4ptp4l0-21swapper/107:17:401
2847191390,3ptp4l0-21swapper/210:40:172
2847191390,3ptp4l0-21swapper/209:35:072
14988993924,3cyclictest25-21ksoftirqd/108:45:301
2847191380,3ptp4l0-21swapper/112:12:321
2847191380,3ptp4l0-21swapper/110:15:261
2847191380,3ptp4l0-21swapper/107:42:031
14988993823,3cyclictest25-21ksoftirqd/109:25:181
14988993722,3cyclictest25-21ksoftirqd/110:35:291
126272235,11sleep20-21swapper/207:05:122
146142142,7sleep31293-21snmpd07:09:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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