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2025-12-20 - 22:45
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Sat Dec 20, 2025 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
70899762,32cyclictest0-21swapper/308:55:243
708996530,7cyclictest41-21ksoftirqd/310:20:193
134491640,4ptp4l0-21swapper/207:08:052
708996221,3cyclictest41-21ksoftirqd/311:45:193
134491620,4ptp4l26413-21/usr/sbin/munin08:05:272
134491610,5ptp4l0-21swapper/207:40:222
708996027,6cyclictest41-21ksoftirqd/310:15:283
134491600,4ptp4l0-21swapper/312:10:063
134491600,3ptp4l0-21swapper/209:20:112
708995929,9cyclictest41-21ksoftirqd/311:20:143
708995924,3cyclictest41-21ksoftirqd/309:40:003
708995923,3cyclictest41-21ksoftirqd/310:35:293
175192590,5sleep30-21swapper/307:45:183
134491590,3ptp4l0-21swapper/107:25:591
134491580,9ptp4l0-21swapper/208:50:192
134491570,3ptp4l20798-21ntp_states09:00:222
134491570,3ptp4l0-21swapper/208:28:132
134491570,3ptp4l0-21swapper/108:45:151
708995623,3cyclictest41-21ksoftirqd/311:40:293
255402560,5sleep233-21ksoftirqd/210:20:252
134491560,4ptp4l0-21swapper/209:47:132
134491560,4ptp4l0-21swapper/109:33:111
70899554,10cyclictest41-21ksoftirqd/308:25:253
70899545,8cyclictest41-21ksoftirqd/311:10:143
708995429,6cyclictest41-21ksoftirqd/308:15:153
708995422,8cyclictest41-21ksoftirqd/308:12:503
708995420,7cyclictest41-21ksoftirqd/308:30:263
706995424,3cyclictest25-21ksoftirqd/108:05:221
134491540,4ptp4l0-21swapper/107:36:301
70899534,8cyclictest41-21ksoftirqd/307:15:143
70899534,7cyclictest41-21ksoftirqd/310:50:003
70899532,6cyclictest41-21ksoftirqd/307:25:203
70899532,11cyclictest0-21swapper/310:57:173
70899530,7cyclictest0-21swapper/307:40:163
706995314,7cyclictest25-21ksoftirqd/109:13:511
134491530,3ptp4l0-21swapper/210:46:272
134491530,14ptp4l0-21swapper/307:05:283
70899525,7cyclictest41-21ksoftirqd/311:55:143
70899523,5cyclictest41-21ksoftirqd/312:15:153
70899523,5cyclictest41-21ksoftirqd/308:09:593
706995221,4cyclictest25-21ksoftirqd/111:25:271
706995219,4cyclictest25-21ksoftirqd/110:50:001
134491520,4ptp4l0-21swapper/111:06:421
134491520,3ptp4l0-21swapper/111:24:441
134491520,3ptp4l0-21swapper/010:18:070
134491520,11ptp4l31116-21/usr/sbin/munin07:05:141
70899515,8cyclictest41-21ksoftirqd/310:35:013
70899515,8cyclictest41-21ksoftirqd/308:50:253
70899515,8cyclictest41-21ksoftirqd/308:35:153
70899515,8cyclictest19777-21sed11:20:003
70899515,6cyclictest41-21ksoftirqd/310:05:003
70899514,8cyclictest41-21ksoftirqd/308:45:183
70899514,7cyclictest41-21ksoftirqd/312:25:003
70899514,7cyclictest41-21ksoftirqd/309:25:003
70899514,7cyclictest41-21ksoftirqd/307:35:283
70899513,7cyclictest0-21swapper/310:05:273
70899512,7cyclictest0-21swapper/309:10:163
70899512,7cyclictest0-21swapper/307:10:173
70899512,6cyclictest0-21swapper/310:29:363
708995125,7cyclictest41-21ksoftirqd/309:00:153
70899512,32cyclictest0-21swapper/312:35:203
708995120,7cyclictest41-21ksoftirqd/311:30:263
70899511,5cyclictest41-21ksoftirqd/310:10:263
70899511,5cyclictest20840-21latency12:30:223
706995111,8cyclictest25-21ksoftirqd/112:30:211
286922510,5sleep10-21swapper/109:20:001
134491510,4ptp4l0-21swapper/210:42:202
134491510,4ptp4l0-21swapper/009:14:360
134491510,3ptp4l0-21swapper/007:38:340
70899505,7cyclictest41-21ksoftirqd/309:05:193
70899504,7cyclictest41-21ksoftirqd/311:05:193
70899503,8cyclictest41-21ksoftirqd/309:40:003
70899503,6cyclictest41-21ksoftirqd/308:00:193
70899503,6cyclictest0-21swapper/308:44:453
70899502,12cyclictest0-21swapper/309:25:173
70899501,7cyclictest0-21swapper/307:58:433
70899501,6cyclictest41-21ksoftirqd/311:00:273
706995012,4cyclictest25-21ksoftirqd/109:35:111
134491500,4ptp4l0-21swapper/211:50:102
134491500,4ptp4l0-21swapper/111:00:091
134491500,4ptp4l0-21swapper/109:20:071
134491500,4ptp4l0-21swapper/010:36:560
134491500,3ptp4l0-21swapper/211:11:012
134491500,3ptp4l0-21swapper/207:25:302
134491500,2ptp4l0-21swapper/008:36:120
70899494,7cyclictest41-21ksoftirqd/308:20:233
70899494,4cyclictest41-21ksoftirqd/311:40:003
70899492,7cyclictest41-21ksoftirqd/309:50:003
70899492,11cyclictest0-21swapper/311:25:233
70899490,5cyclictest28699-21latency_hist09:20:003
706994920,6cyclictest25-21ksoftirqd/111:40:001
706994920,4cyclictest25-21ksoftirqd/111:57:121
134491490,4ptp4l0-21swapper/211:17:042
134491490,4ptp4l0-21swapper/209:15:532
134491490,4ptp4l0-21swapper/208:41:192
134491490,4ptp4l0-21swapper/108:17:021
134491490,3ptp4l0-21swapper/110:04:031
70899481,7cyclictest41-21ksoftirqd/312:25:263
70899480,11cyclictest41-21ksoftirqd/312:00:143
706994816,4cyclictest25-21ksoftirqd/107:47:361
134491480,4ptp4l0-21swapper/211:06:552
134491480,4ptp4l0-21swapper/210:31:152
134491480,4ptp4l0-21swapper/009:27:010
70899474,7cyclictest41-21ksoftirqd/309:50:253
70899473,7cyclictest41-21ksoftirqd/312:05:233
70899472,7cyclictest41-21ksoftirqd/310:45:003
706994718,8cyclictest25-21ksoftirqd/112:10:161
134491470,4ptp4l0-21swapper/207:30:422
134491470,3ptp4l0-21swapper/307:35:003
134491470,10ptp4l12976-21apt-get12:15:142
70899461,5cyclictest0-21swapper/309:30:133
70899460,7cyclictest72132sleep307:21:273
706994614,4cyclictest25-21ksoftirqd/108:03:491
134491460,4ptp4l0-21swapper/108:29:461
134491460,13ptp4l28945-21df_abs08:10:150
70899455,10cyclictest0-21swapper/309:58:563
70899452,7cyclictest0-21swapper/307:54:503
70899452,30cyclictest0-21swapper/311:50:513
706994516,7cyclictest25-21ksoftirqd/107:19:041
706994515,7cyclictest25-21ksoftirqd/111:32:121
706994514,3cyclictest25-21ksoftirqd/108:44:521
706994512,3cyclictest25-21ksoftirqd/107:41:321
134491450,4ptp4l121rcu_preempt11:42:200
134491450,4ptp4l0-21swapper/108:13:131
134491450,3ptp4l0-21swapper/212:13:262
70699444,10cyclictest25-21ksoftirqd/111:40:291
70699442,8cyclictest25-21ksoftirqd/111:50:201
706994417,7cyclictest25-21ksoftirqd/107:24:011
706994416,3cyclictest25-21ksoftirqd/110:38:091
706994414,3cyclictest25-21ksoftirqd/109:58:381
706994412,3cyclictest25-21ksoftirqd/112:15:051
134491440,9ptp4l0-21swapper/211:44:532
134491440,9ptp4l0-21swapper/208:16:342
134491440,9ptp4l0-21swapper/207:51:072
134491440,9ptp4l0-21swapper/010:50:260
134491440,9ptp4l0-21swapper/007:59:270
134491440,5ptp4l0-21swapper/007:05:490
134491440,4ptp4l19619-21apt-get10:10:110
134491440,4ptp4l0-21swapper/210:15:372
134491440,3ptp4l5769-21apt-get09:40:152
134491440,3ptp4l0-21swapper/209:05:262
134491440,3ptp4l0-21swapper/107:58:151
134491440,3ptp4l0-21swapper/008:03:290
134491440,11ptp4l0-21swapper/210:39:052
134491440,10ptp4l0-21swapper/110:31:001
134491440,10ptp4l0-21swapper/107:54:551
134491440,10ptp4l0-21swapper/011:30:160
70899432,6cyclictest0-21swapper/310:50:423
706994313,6cyclictest25-21ksoftirqd/108:24:501
134491430,9ptp4l0-21swapper/210:27:182
134491430,9ptp4l0-21swapper/011:59:190
134491430,9ptp4l0-21swapper/010:46:090
134491430,9ptp4l0-21swapper/010:05:480
134491430,3ptp4l31192-21apt-get09:25:142
134491430,3ptp4l0-21swapper/211:32:322
70699426,3cyclictest121rcu_preempt11:11:341
706994229,10cyclictest25-21ksoftirqd/110:20:181
706994224,6cyclictest25-21ksoftirqd/108:34:591
706994221,4cyclictest25-21ksoftirqd/112:38:251
706994217,6cyclictest25-21ksoftirqd/108:51:301
706994214,7cyclictest25-21ksoftirqd/109:54:551
706994213,5cyclictest25-21ksoftirqd/109:45:241
706994212,3cyclictest25-21ksoftirqd/110:06:141
134491420,9ptp4l0-21swapper/209:35:022
134491420,9ptp4l0-21swapper/209:14:412
134491420,9ptp4l0-21swapper/007:22:210
134491420,5ptp4l6928-21ntp_states08:30:250
134491420,5ptp4l11588-21irqstats11:00:220
134491420,5ptp4l0-21swapper/012:10:160
134491420,5ptp4l0-21swapper/011:25:290
134491420,5ptp4l0-21swapper/010:20:290
134491420,5ptp4l0-21swapper/009:15:260
134491420,5ptp4l0-21swapper/008:45:200
134491420,5ptp4l0-21swapper/007:15:170
134491420,4ptp4l9149-21ls10:55:221
134491420,4ptp4l30226-21ls08:10:282
134491420,4ptp4l21982-21apt-get09:05:130
134491420,4ptp4l0-21swapper/211:35:282
134491420,4ptp4l0-21swapper/210:55:242
134491420,4ptp4l0-21swapper/109:05:121
134491420,4ptp4l0-21swapper/109:00:171
134491420,3ptp4l25698-21ls08:00:292
134491420,3ptp4l0-21swapper/011:05:160
134491420,3ptp4l0-21swapper/008:20:200
134491420,11ptp4l0-21swapper/210:11:362
134491420,10ptp4l0-21swapper/112:20:271
134491420,10ptp4l0-21swapper/008:09:240
707994129,3cyclictest33-21ksoftirqd/208:30:152
70699417,3cyclictest25-21ksoftirqd/110:51:091
70699417,3cyclictest25-21ksoftirqd/110:10:221
706994135,3cyclictest25-21ksoftirqd/110:44:591
706994114,6cyclictest25-21ksoftirqd/107:12:541
705994116,3cyclictest29884-21irqstats10:30:190
134491410,9ptp4l0-21swapper/212:26:462
134491410,5ptp4l0-21swapper/207:20:232
134491410,5ptp4l0-21swapper/111:15:211
134491410,5ptp4l0-21swapper/010:55:220
134491410,5ptp4l0-21swapper/009:55:200
134491410,5ptp4l0-21swapper/009:00:150
134491410,4ptp4l8872-21ntp_states07:25:260
134491410,4ptp4l20309-21df_inode11:20:150
134491410,4ptp4l12657-21diskstats07:35:152
134491410,4ptp4l0-21swapper/112:08:031
134491410,4ptp4l0-21swapper/009:42:460
134491410,3ptp4l5914-21apt-get10:50:142
134491410,3ptp4l4554-21ls07:15:252
134491410,3ptp4l16755-21ls11:10:260
134491410,3ptp4l0-21swapper/207:45:292
134491410,3ptp4l0-21swapper/011:35:170
134491410,3ptp4l0-21swapper/010:00:000
134491410,2ptp4l0-21swapper/211:03:202
70699408,8cyclictest25-21ksoftirqd/112:25:151
134491400,5ptp4l0-21swapper/009:20:260
134491400,4ptp4l3766-21apt-get11:55:112
134491400,4ptp4l2406-21ps09:30:262
134491400,4ptp4l15869-21iostat_ios12:20:220
134491400,4ptp4l0-21swapper/209:50:262
134491400,4ptp4l0-21swapper/108:55:151
134491400,4ptp4l0-21swapper/011:47:390
134491400,4ptp4l0-21swapper/009:45:280
134491400,4ptp4l0-21swapper/008:52:580
134491400,4ptp4l0-21swapper/008:29:560
134491400,4ptp4l0-21swapper/008:15:120
134491400,4ptp4l0-21swapper/007:48:460
134491400,3ptp4l23319-21ls11:25:232
134491400,3ptp4l1136-21apt-get08:20:122
134491400,3ptp4l0-21swapper/209:56:442
70699396,2cyclictest121rcu_preempt10:17:381
706993911,7cyclictest25-21ksoftirqd/109:27:311
134491390,5ptp4l70799cyclictest08:35:172
134491390,5ptp4l0-21swapper/207:56:112
134491390,4ptp4l0-21swapper/212:36:562
134491390,4ptp4l0-21swapper/212:31:202
134491390,4ptp4l0-21swapper/212:20:312
134491390,4ptp4l0-21swapper/212:06:292
134491390,4ptp4l0-21swapper/212:00:102
134491390,4ptp4l0-21swapper/211:22:582
134491390,4ptp4l0-21swapper/210:06:122
134491390,4ptp4l0-21swapper/210:01:132
134491390,4ptp4l0-21swapper/208:56:452
134491390,4ptp4l0-21swapper/208:48:032
134491390,4ptp4l0-21swapper/207:10:472
134491390,4ptp4l0-21swapper/111:48:501
134491390,4ptp4l0-21swapper/110:25:191
134491390,4ptp4l0-21swapper/107:32:341
134491390,4ptp4l0-21swapper/012:30:200
134491390,4ptp4l0-21swapper/012:17:420
134491390,4ptp4l0-21swapper/012:09:080
134491390,4ptp4l0-21swapper/011:15:220
134491390,4ptp4l0-21swapper/010:44:180
134491390,4ptp4l0-21swapper/009:54:120
134491390,4ptp4l0-21swapper/009:33:340
134491390,4ptp4l0-21swapper/008:41:360
134491390,4ptp4l0-21swapper/007:52:460
134491390,4ptp4l0-21swapper/007:40:200
134491390,4ptp4l0-21swapper/007:30:100
134491390,3ptp4l1409-21apt-get11:50:160
70699384,3cyclictest121rcu_preempt12:00:161
706993833,3cyclictest25-21ksoftirqd/109:40:221
134491380,4ptp4l0-21swapper/108:37:021
134491380,4ptp4l0-21swapper/012:02:380
134491380,4ptp4l0-21swapper/010:27:560
134491380,4ptp4l0-21swapper/009:35:110
134491380,4ptp4l0-21swapper/008:55:130
134491380,4ptp4l0-21swapper/007:12:260
134491380,3ptp4l0-21swapper/211:46:072
134491370,4ptp4l0-21swapper/012:35:300
134491370,4ptp4l0-21swapper/012:25:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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