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2026-03-23 - 05:15
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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 rackdslot2.osadl.org (updated Mon Mar 23, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286402234168,23sleep00-21swapper/019:08:540
284702233169,21sleep10-21swapper/119:06:421
139591208173,23phc2sys0-21swapper/319:05:393
285852204170,22sleep20-21swapper/219:08:112
29018996928,3cyclictest25-21ksoftirqd/120:10:161
29018996430,4cyclictest25-21ksoftirqd/100:25:001
29018996430,4cyclictest25-21ksoftirqd/100:25:001
29018996429,7cyclictest25-21ksoftirqd/122:20:011
29017996434,4cyclictest9-21ksoftirqd/000:35:190
29018996332,4cyclictest25-21ksoftirqd/121:15:011
29018996331,4cyclictest25-21ksoftirqd/123:00:001
29017996332,4cyclictest9-21ksoftirqd/019:55:190
29018996231,4cyclictest25-21ksoftirqd/100:25:181
29017996234,3cyclictest9-21ksoftirqd/021:00:280
29017996233,4cyclictest9-21ksoftirqd/022:55:110
29017996233,4cyclictest9-21ksoftirqd/021:20:280
139291620,5ptp4l401ktimersoftd/319:12:333
29018996131,4cyclictest25-21ksoftirqd/121:25:251
29018996130,4cyclictest25-21ksoftirqd/119:25:001
29018996130,3cyclictest25-21ksoftirqd/123:55:011
29018996129,4cyclictest25-21ksoftirqd/123:45:251
29018996128,4cyclictest25-21ksoftirqd/100:10:261
29017996132,4cyclictest9-21ksoftirqd/021:10:130
29017996130,4cyclictest9-21ksoftirqd/021:50:270
29018996029,8cyclictest25-21ksoftirqd/122:05:211
29018996029,8cyclictest25-21ksoftirqd/122:05:211
29017996031,4cyclictest9-21ksoftirqd/019:45:160
29017996030,4cyclictest9-21ksoftirqd/022:10:170
29017996030,4cyclictest9-21ksoftirqd/021:30:150
29017996030,3cyclictest9-21ksoftirqd/023:10:180
29017996030,3cyclictest9-21ksoftirqd/020:00:260
29017996029,3cyclictest9-21ksoftirqd/022:15:260
29017996028,4cyclictest9-21ksoftirqd/022:05:280
29017996028,4cyclictest9-21ksoftirqd/022:05:270
29018995928,8cyclictest25-21ksoftirqd/122:40:281
29018995928,3cyclictest25-21ksoftirqd/122:25:201
29017995930,4cyclictest9-21ksoftirqd/023:00:250
29017995928,4cyclictest9-21ksoftirqd/000:00:190
29018995828,4cyclictest25-21ksoftirqd/121:50:011
29018995828,3cyclictest25-21ksoftirqd/123:35:181
29018995827,4cyclictest25-21ksoftirqd/100:30:261
29018995826,4cyclictest25-21ksoftirqd/120:50:151
29017995827,3cyclictest9-21ksoftirqd/021:55:130
29018995726,3cyclictest25-21ksoftirqd/120:55:271
29017995730,3cyclictest9-21ksoftirqd/021:45:140
29017995729,4cyclictest9-21ksoftirqd/023:05:140
29017995728,3cyclictest9-21ksoftirqd/020:20:200
29017995725,3cyclictest9-21ksoftirqd/023:25:010
29017995723,3cyclictest9-21ksoftirqd/021:15:220
29017995723,11cyclictest9-21ksoftirqd/020:05:230
29018995628,4cyclictest25-21ksoftirqd/123:58:171
29018995628,4cyclictest25-21ksoftirqd/123:00:271
29018995628,4cyclictest25-21ksoftirqd/119:10:301
29018995628,4cyclictest25-21ksoftirqd/100:35:131
29018995626,4cyclictest25-21ksoftirqd/119:15:221
29018995626,3cyclictest25-21ksoftirqd/123:40:191
29018995624,3cyclictest25-21ksoftirqd/123:10:141
29018995621,3cyclictest25-21ksoftirqd/119:50:191
29018995620,9cyclictest25-21ksoftirqd/120:45:191
29017995628,4cyclictest9-21ksoftirqd/019:20:220
29017995626,4cyclictest9-21ksoftirqd/022:00:250
29017995625,3cyclictest9-21ksoftirqd/021:05:270
29017995624,4cyclictest9-21ksoftirqd/020:15:140
2901999554,4cyclictest46122chrt22:49:192
29018995533,11cyclictest25-21ksoftirqd/120:44:591
29018995527,4cyclictest25-21ksoftirqd/100:00:171
29018995527,3cyclictest25-21ksoftirqd/122:45:151
29018995526,4cyclictest25-21ksoftirqd/123:30:371
29018995525,4cyclictest25-21ksoftirqd/121:20:161
29018995427,3cyclictest25-21ksoftirqd/122:14:551
29018995426,4cyclictest25-21ksoftirqd/121:00:251
29018995426,3cyclictest25-21ksoftirqd/119:45:261
29018995422,3cyclictest25-21ksoftirqd/119:40:271
29018995421,3cyclictest25-21ksoftirqd/123:20:131
29017995426,3cyclictest9-21ksoftirqd/020:45:130
29017995425,4cyclictest9-21ksoftirqd/021:35:250
29017995425,4cyclictest9-21ksoftirqd/021:35:250
29017995425,3cyclictest9-21ksoftirqd/022:35:180
29017995425,3cyclictest9-21ksoftirqd/022:35:170
29017995425,3cyclictest9-21ksoftirqd/000:05:130
29017995423,4cyclictest9-21ksoftirqd/021:43:480
29017995419,8cyclictest9-21ksoftirqd/019:15:250
29017995419,5cyclictest9-21ksoftirqd/019:35:260
29018995312,5cyclictest25-21ksoftirqd/121:54:011
29017995324,4cyclictest9-21ksoftirqd/022:30:220
29017995322,7cyclictest9-21ksoftirqd/023:40:130
29018995224,4cyclictest25-21ksoftirqd/120:30:211
29018995220,4cyclictest25-21ksoftirqd/122:30:161
29018995134,3cyclictest25-21ksoftirqd/123:25:271
29018995126,3cyclictest25-21ksoftirqd/121:15:131
29018995123,3cyclictest25-21ksoftirqd/123:15:121
29018995123,3cyclictest25-21ksoftirqd/121:05:261
29018995122,4cyclictest25-21ksoftirqd/120:30:001
29017995124,3cyclictest9-21ksoftirqd/022:25:230
29017995123,3cyclictest9-21ksoftirqd/022:20:240
29017995122,4cyclictest9-21ksoftirqd/022:50:010
29017995122,4cyclictest9-21ksoftirqd/020:40:230
29017995120,4cyclictest9-21ksoftirqd/020:50:200
29017995118,6cyclictest9-21ksoftirqd/000:35:010
207342510,2sleep20-21swapper/200:30:162
29018995021,3cyclictest25-21ksoftirqd/121:30:331
29018995013,9cyclictest25-21ksoftirqd/121:35:221
29018995013,9cyclictest25-21ksoftirqd/121:35:221
29017995021,3cyclictest9-21ksoftirqd/000:15:160
29017995018,3cyclictest9-21ksoftirqd/000:10:150
29018994940,3cyclictest25-21ksoftirqd/120:00:141
29018994922,3cyclictest25-21ksoftirqd/119:35:281
29018994920,3cyclictest25-21ksoftirqd/120:15:201
29018994911,9cyclictest25-21ksoftirqd/122:20:241
29017994917,9cyclictest9-21ksoftirqd/020:35:190
2901899482,8cyclictest25-21ksoftirqd/100:20:001
29018994822,4cyclictest25-21ksoftirqd/122:35:131
29018994822,4cyclictest25-21ksoftirqd/122:35:131
29017994818,3cyclictest9-21ksoftirqd/019:40:190
29017994815,4cyclictest9-21ksoftirqd/023:45:270
29018994730,4cyclictest25-21ksoftirqd/119:30:001
29018994721,4cyclictest25-21ksoftirqd/121:55:161
29018994711,8cyclictest25-21ksoftirqd/120:05:181
29017994737,3cyclictest9-21ksoftirqd/022:50:130
29017994730,4cyclictest9-21ksoftirqd/022:40:160
29017994721,3cyclictest9-21ksoftirqd/023:55:280
29017994716,4cyclictest9-21ksoftirqd/000:25:000
29017994716,4cyclictest9-21ksoftirqd/000:25:000
2901899466,9cyclictest25-21ksoftirqd/100:05:131
29018994611,6cyclictest25-21ksoftirqd/122:50:151
2901799464,3cyclictest121rcu_preempt23:40:000
29017994630,4cyclictest9-21ksoftirqd/023:30:200
29017994630,4cyclictest9-21ksoftirqd/020:30:150
29017994621,2cyclictest9-21ksoftirqd/019:50:220
62992450,1sleep30-21swapper/322:50:243
29019994539,3cyclictest2318-21sh20:30:012
29018994518,4cyclictest25-21ksoftirqd/123:05:231
29017994532,4cyclictest9-21ksoftirqd/000:25:210
29017994531,3cyclictest9-21ksoftirqd/020:25:190
323862440,1sleep30-21swapper/323:45:243
29018994431,4cyclictest25-21ksoftirqd/122:00:551
29018994418,3cyclictest25-21ksoftirqd/120:25:011
29017994431,3cyclictest9-21ksoftirqd/020:10:230
29017994430,4cyclictest9-21ksoftirqd/023:25:180
29017994430,4cyclictest9-21ksoftirqd/019:25:130
29017994429,4cyclictest9-21ksoftirqd/023:15:240
135191440,2getstats0-21swapper/323:13:493
29018994326,8cyclictest25-21ksoftirqd/119:30:131
2901899430,3cyclictest25-21ksoftirqd/121:40:151
2901899430,2cyclictest121rcu_preempt19:55:181
29017994327,3cyclictest9-21ksoftirqd/020:55:180
29017994317,3cyclictest9-21ksoftirqd/021:29:410
139291420,0ptp4l401ktimersoftd/319:27:183
29017994128,3cyclictest9-21ksoftirqd/019:30:130
139291410,0ptp4l401ktimersoftd/319:55:293
2901899400,2cyclictest121rcu_preempt20:35:141
29017994025,3cyclictest9-21ksoftirqd/023:55:010
29019993932,4cyclictest33-21ksoftirqd/222:51:482
29020993832,4cyclictest41-21ksoftirqd/322:48:003
29019993832,4cyclictest33-21ksoftirqd/220:35:492
29017993812,4cyclictest9-21ksoftirqd/019:13:130
139291380,0ptp4l401ktimersoftd/322:40:203
139291380,0ptp4l401ktimersoftd/321:50:203
139291380,0ptp4l401ktimersoftd/320:45:293
29020993732,3cyclictest41-21ksoftirqd/300:29:333
29020993731,4cyclictest41-21ksoftirqd/323:57:283
29020993731,4cyclictest41-21ksoftirqd/323:51:143
29020993731,4cyclictest41-21ksoftirqd/323:06:573
29020993731,4cyclictest41-21ksoftirqd/321:12:403
29020993731,4cyclictest41-21ksoftirqd/321:07:583
29020993731,4cyclictest41-21ksoftirqd/321:04:573
29020993731,4cyclictest41-21ksoftirqd/320:58:073
29020993731,4cyclictest41-21ksoftirqd/300:16:413
29020993731,4cyclictest41-21ksoftirqd/300:06:303
29019993730,5cyclictest33-21ksoftirqd/223:43:442
29020993631,3cyclictest41-21ksoftirqd/320:25:143
29020993630,4cyclictest41-21ksoftirqd/323:28:513
29020993630,4cyclictest41-21ksoftirqd/320:10:023
29020993630,4cyclictest41-21ksoftirqd/319:20:593
29020993630,4cyclictest41-21ksoftirqd/319:16:463
29019993630,4cyclictest33-21ksoftirqd/222:28:532
29019993630,4cyclictest33-21ksoftirqd/219:17:142
139291360,0ptp4l401ktimersoftd/321:30:233
29020993530,3cyclictest41-21ksoftirqd/322:20:113
29020993530,3cyclictest41-21ksoftirqd/319:45:463
29020993529,4cyclictest41-21ksoftirqd/323:35:053
29020993529,4cyclictest41-21ksoftirqd/320:54:393
29020993529,4cyclictest41-21ksoftirqd/320:43:273
29020993529,4cyclictest41-21ksoftirqd/300:20:463
29020993529,4cyclictest41-21ksoftirqd/300:20:463
29020993527,5cyclictest41-21ksoftirqd/320:25:003
29019993530,3cyclictest33-21ksoftirqd/219:30:122
29019993530,3cyclictest33-21ksoftirqd/200:06:142
29019993529,4cyclictest33-21ksoftirqd/219:50:362
139291350,1ptp4l401ktimersoftd/322:05:263
139291350,1ptp4l401ktimersoftd/322:05:263
139291350,0ptp4l401ktimersoftd/322:27:163
29020993429,3cyclictest41-21ksoftirqd/323:01:073
29020993429,3cyclictest41-21ksoftirqd/322:03:433
29020993429,3cyclictest41-21ksoftirqd/320:32:053
29020993429,3cyclictest41-21ksoftirqd/319:38:423
29020993428,4cyclictest41-21ksoftirqd/322:36:003
29020993428,4cyclictest41-21ksoftirqd/322:36:003
29020993428,4cyclictest41-21ksoftirqd/322:16:353
29020993428,4cyclictest41-21ksoftirqd/320:18:253
29020993428,4cyclictest41-21ksoftirqd/319:51:043
29019993429,3cyclictest33-21ksoftirqd/223:25:512
29019993429,3cyclictest33-21ksoftirqd/223:01:522
29019993429,3cyclictest33-21ksoftirqd/222:13:382
29019993429,3cyclictest33-21ksoftirqd/221:34:442
29019993429,3cyclictest33-21ksoftirqd/200:20:112
29019993429,3cyclictest33-21ksoftirqd/200:20:112
29019993428,4cyclictest33-21ksoftirqd/223:11:292
29019993428,4cyclictest33-21ksoftirqd/222:38:002
29019993428,4cyclictest33-21ksoftirqd/222:38:002
29019993428,4cyclictest33-21ksoftirqd/222:19:022
29019993428,4cyclictest33-21ksoftirqd/221:48:252
29019993428,4cyclictest33-21ksoftirqd/219:26:092
29019993421,11cyclictest33-21ksoftirqd/221:00:352
29019993415,16cyclictest15591-21sed22:05:002
29019993414,17cyclictest7366-21timedrift00:00:262
29020993329,3cyclictest41-21ksoftirqd/300:35:013
29020993328,3cyclictest41-21ksoftirqd/320:37:493
29020993328,3cyclictest41-21ksoftirqd/320:06:263
29020993328,3cyclictest41-21ksoftirqd/319:32:523
29020993328,3cyclictest41-21ksoftirqd/300:04:543
29020993327,4cyclictest41-21ksoftirqd/322:14:063
29020993327,4cyclictest41-21ksoftirqd/321:41:443
29020993327,4cyclictest41-21ksoftirqd/321:18:373
29019993328,3cyclictest33-21ksoftirqd/223:25:002
29019993328,3cyclictest33-21ksoftirqd/223:15:092
29019993328,3cyclictest33-21ksoftirqd/222:07:362
29019993328,3cyclictest33-21ksoftirqd/222:07:352
29019993328,3cyclictest33-21ksoftirqd/221:50:142
29019993328,3cyclictest33-21ksoftirqd/221:22:442
29019993328,3cyclictest33-21ksoftirqd/219:24:242
29019993328,3cyclictest33-21ksoftirqd/219:13:242
29019993328,3cyclictest33-21ksoftirqd/200:39:212
29019993328,3cyclictest33-21ksoftirqd/200:28:462
29019993327,4cyclictest33-21ksoftirqd/223:32:312
29019993327,4cyclictest33-21ksoftirqd/222:43:092
29019993327,4cyclictest33-21ksoftirqd/220:30:072
29019993327,4cyclictest33-21ksoftirqd/219:49:062
29020993227,3cyclictest41-21ksoftirqd/322:32:083
29020993227,3cyclictest41-21ksoftirqd/300:36:113
29020993226,4cyclictest41-21ksoftirqd/323:33:373
29020993226,4cyclictest41-21ksoftirqd/323:19:533
29020993226,4cyclictest41-21ksoftirqd/321:57:293
29019993227,3cyclictest33-21ksoftirqd/222:20:112
29019993227,3cyclictest33-21ksoftirqd/221:05:212
29019993227,3cyclictest33-21ksoftirqd/221:00:002
29019993227,3cyclictest33-21ksoftirqd/220:54:432
29019993227,3cyclictest33-21ksoftirqd/220:44:122
29019993227,3cyclictest33-21ksoftirqd/220:02:132
29019993227,3cyclictest33-21ksoftirqd/200:15:342
29019993227,3cyclictest33-21ksoftirqd/200:10:032
29019993226,4cyclictest33-21ksoftirqd/223:46:562
29019993226,4cyclictest33-21ksoftirqd/221:18:082
29020993126,3cyclictest41-21ksoftirqd/323:40:053
29020993126,3cyclictest41-21ksoftirqd/322:59:033
29020993126,3cyclictest41-21ksoftirqd/321:25:123
2901999318,20cyclictest3831-21cpuspeed21:40:132
139291310,0ptp4l401ktimersoftd/320:02:153
139291310,0ptp4l401ktimersoftd/300:12:303
29020993025,3cyclictest41-21ksoftirqd/321:35:593
29020993025,3cyclictest41-21ksoftirqd/321:35:593
29020993025,3cyclictest41-21ksoftirqd/321:22:403
29020993025,3cyclictest41-21ksoftirqd/319:43:053
2901999308,19cyclictest27720-21sed20:15:002
29019993024,4cyclictest33-21ksoftirqd/223:39:132
29019993024,4cyclictest33-21ksoftirqd/221:38:592
29019993024,4cyclictest33-21ksoftirqd/221:38:592
29019993019,9cyclictest33-21ksoftirqd/221:10:212
29019993010,17cyclictest12246-21seq23:05:142
2901999300,3cyclictest3957-21/usr/sbin/munin23:55:172
29019992924,3cyclictest33-21ksoftirqd/222:59:442
29019992924,3cyclictest33-21ksoftirqd/222:33:302
29019992924,3cyclictest33-21ksoftirqd/219:59:082
29019992923,4cyclictest33-21ksoftirqd/223:50:412
29019992923,4cyclictest33-21ksoftirqd/220:06:272
29019992923,4cyclictest33-21ksoftirqd/219:40:322
29019992910,16cyclictest217-21systemd-journal21:55:012
2901999290,3cyclictest29601-21seq21:25:162
2901999282,20cyclictest27760-21apt-get20:15:122
29019992811,15cyclictest9483-21sed19:35:192
2901999270,3cyclictest10760-21memory20:45:202
2902099251,2cyclictest121rcu_preempt23:20:233
2901999253,3cyclictest30665-21uniq20:20:152
139291250,0ptp4l401ktimersoftd/321:45:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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