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2026-07-25 - 21:15
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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 rackdslot1.osadl.org (updated Sat Jul 25, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
976021670,3sleep19763-21grep09:30:181
1191521340,4sleep2874799cyclictest10:45:172
113522760,4sleep011354-21df_abs07:15:130
8745996933,5cyclictest9-21ksoftirqd/009:59:590
8745996834,5cyclictest9-21ksoftirqd/007:40:000
8745996731,4cyclictest9-21ksoftirqd/011:05:010
8745996730,5cyclictest9-21ksoftirqd/011:10:010
8745996632,6cyclictest9-21ksoftirqd/008:50:010
8747996533,8cyclictest33-21ksoftirqd/210:43:172
8747996531,4cyclictest33-21ksoftirqd/208:30:132
8745996428,8cyclictest9-21ksoftirqd/009:20:000
8745996428,8cyclictest9-21ksoftirqd/009:20:000
232202640,4sleep123189-21latency_hist12:19:591
8747996330,6cyclictest33-21ksoftirqd/209:30:222
8747996326,4cyclictest33-21ksoftirqd/209:55:592
8747996324,5cyclictest33-21ksoftirqd/210:00:272
8745996324,7cyclictest9-21ksoftirqd/007:55:230
134491630,5ptp4l0-21swapper/307:06:383
8747996227,4cyclictest33-21ksoftirqd/208:49:042
8745996229,6cyclictest9-21ksoftirqd/012:00:130
8745996228,5cyclictest9-21ksoftirqd/010:05:220
8745996222,8cyclictest9-21ksoftirqd/009:00:240
211582620,6sleep20-21swapper/207:35:172
8747996129,7cyclictest33-21ksoftirqd/207:16:252
8745996130,5cyclictest9-21ksoftirqd/008:30:250
8745996130,4cyclictest9-21ksoftirqd/011:40:010
8745996128,10cyclictest9-21ksoftirqd/011:50:280
8745996127,6cyclictest9-21ksoftirqd/011:25:000
8745996127,5cyclictest9-21ksoftirqd/009:25:250
8745996125,6cyclictest9-21ksoftirqd/009:30:190
8745996124,5cyclictest9-21ksoftirqd/010:44:580
8747996026,4cyclictest33-21ksoftirqd/209:47:412
8747996025,7cyclictest33-21ksoftirqd/209:52:222
8745996026,5cyclictest9-21ksoftirqd/012:05:270
8745996025,5cyclictest9-21ksoftirqd/008:56:350
134491600,3ptp4l0-21swapper/012:35:260
8747995927,6cyclictest33-21ksoftirqd/211:03:592
8747995927,6cyclictest33-21ksoftirqd/208:54:422
8747995925,6cyclictest33-21ksoftirqd/207:20:272
8745995928,5cyclictest9-21ksoftirqd/007:20:150
8745995926,5cyclictest9-21ksoftirqd/011:15:200
8745995926,5cyclictest9-21ksoftirqd/007:50:000
8745995923,5cyclictest9-21ksoftirqd/007:26:450
134491590,4ptp4l18367-21apt-get08:40:130
8747995828,7cyclictest33-21ksoftirqd/210:20:162
8747995827,5cyclictest33-21ksoftirqd/210:30:142
8747995826,4cyclictest33-21ksoftirqd/210:50:182
8747995826,3cyclictest33-21ksoftirqd/209:25:112
8747995825,7cyclictest33-21ksoftirqd/208:42:582
8747995825,5cyclictest33-21ksoftirqd/208:10:262
8747995823,6cyclictest33-21ksoftirqd/208:15:242
8745995826,6cyclictest9-21ksoftirqd/010:15:260
8745995826,6cyclictest9-21ksoftirqd/009:20:220
8745995826,5cyclictest9-21ksoftirqd/011:55:190
8745995825,5cyclictest9-21ksoftirqd/009:35:280
8745995824,3cyclictest9-21ksoftirqd/010:50:170
319562580,6sleep10-21swapper/112:35:281
874799573,30cyclictest0-21swapper/209:39:242
8747995730,7cyclictest33-21ksoftirqd/212:24:102
8747995726,5cyclictest33-21ksoftirqd/211:10:302
8747995725,7cyclictest33-21ksoftirqd/209:10:582
8747995725,5cyclictest33-21ksoftirqd/207:10:272
8747995725,3cyclictest33-21ksoftirqd/211:46:472
8747995724,6cyclictest33-21ksoftirqd/210:39:072
8745995725,5cyclictest9-21ksoftirqd/010:00:210
8745995723,4cyclictest9-21ksoftirqd/007:14:200
8745995718,4cyclictest9-21ksoftirqd/011:25:260
134491570,4ptp4l0-21swapper/309:40:263
134491570,3ptp4l0-21swapper/109:25:181
8747995627,4cyclictest33-21ksoftirqd/208:00:002
8747995626,4cyclictest33-21ksoftirqd/212:14:372
8747995623,6cyclictest33-21ksoftirqd/212:30:232
8745995625,3cyclictest9-21ksoftirqd/010:57:330
8745995624,5cyclictest9-21ksoftirqd/009:50:150
134491560,3ptp4l0-21swapper/108:05:211
134491560,3ptp4l0-21swapper/012:30:180
8747995529,5cyclictest33-21ksoftirqd/207:53:252
8747995529,4cyclictest33-21ksoftirqd/211:24:252
8747995525,9cyclictest33-21ksoftirqd/212:16:362
8747995524,5cyclictest33-21ksoftirqd/209:02:232
8747995523,6cyclictest33-21ksoftirqd/208:56:022
8747995518,4cyclictest33-21ksoftirqd/208:04:562
8745995526,3cyclictest9-21ksoftirqd/010:45:400
8745995524,5cyclictest9-21ksoftirqd/011:50:010
8745995522,3cyclictest9-21ksoftirqd/009:14:040
134491550,3ptp4l0-21swapper/007:40:310
8747995432,12cyclictest33-21ksoftirqd/210:29:042
8747995428,7cyclictest33-21ksoftirqd/207:32:282
8747995424,3cyclictest33-21ksoftirqd/208:08:092
8747995419,5cyclictest33-21ksoftirqd/208:39:442
8747995418,5cyclictest33-21ksoftirqd/211:35:162
8747995416,7cyclictest33-21ksoftirqd/207:43:432
8745995425,5cyclictest9-21ksoftirqd/011:40:290
8745995424,5cyclictest9-21ksoftirqd/010:10:140
8745995424,5cyclictest9-21ksoftirqd/008:55:000
8745995421,5cyclictest9-21ksoftirqd/010:35:270
8747995329,7cyclictest33-21ksoftirqd/211:28:122
8747995325,7cyclictest33-21ksoftirqd/210:19:172
8747995325,4cyclictest33-21ksoftirqd/210:05:592
8747995323,3cyclictest33-21ksoftirqd/209:10:002
8747995318,6cyclictest33-21ksoftirqd/211:55:142
8747995316,7cyclictest33-21ksoftirqd/211:07:272
8747995315,5cyclictest33-21ksoftirqd/212:40:012
874599533,9cyclictest9-21ksoftirqd/012:15:150
874599533,4cyclictest9-21ksoftirqd/009:50:000
8747995224,6cyclictest33-21ksoftirqd/212:05:202
8747995222,3cyclictest0-21swapper/212:00:452
8747995220,5cyclictest33-21ksoftirqd/211:30:312
874599525,5cyclictest9-21ksoftirqd/008:15:190
134491520,2ptp4l0-21swapper/112:26:451
8747995112,4cyclictest33-21ksoftirqd/209:40:232
8745995123,5cyclictest9-21ksoftirqd/008:20:160
134491510,4ptp4l0-21swapper/309:45:323
134491510,4ptp4l0-21swapper/010:29:220
8747995029,10cyclictest33-21ksoftirqd/211:17:282
8747995029,10cyclictest33-21ksoftirqd/208:27:542
8747995025,5cyclictest33-21ksoftirqd/207:45:282
8747995015,5cyclictest33-21ksoftirqd/210:55:152
874599505,5cyclictest9-21ksoftirqd/009:40:140
874599504,4cyclictest9-21ksoftirqd/007:50:220
874599503,4cyclictest9-21ksoftirqd/008:25:200
874599502,6cyclictest0-21swapper/012:10:170
874599502,4cyclictest9-21ksoftirqd/008:35:190
8745995023,3cyclictest9-21ksoftirqd/008:09:170
134491500,6ptp4l0-21swapper/207:07:342
8747994928,12cyclictest33-21ksoftirqd/207:25:592
874599494,6cyclictest9-21ksoftirqd/008:10:200
874599493,6cyclictest9-21ksoftirqd/012:20:210
8745994932,10cyclictest9-21ksoftirqd/012:30:010
8745994929,10cyclictest9-21ksoftirqd/011:10:150
874599491,5cyclictest9-21ksoftirqd/008:05:000
134491490,3ptp4l874699cyclictest12:03:171
134491490,3ptp4l0-21swapper/310:55:023
134491490,3ptp4l0-21swapper/108:36:351
134491490,2ptp4l0-21swapper/311:07:543
874799489,7cyclictest33-21ksoftirqd/209:16:382
874799489,7cyclictest33-21ksoftirqd/209:16:382
874599483,4cyclictest0-21swapper/011:30:210
874599482,5cyclictest9-21ksoftirqd/009:05:200
874599482,5cyclictest0-21swapper/007:30:280
134491480,9ptp4l0-21swapper/108:33:051
134491480,4ptp4l0-21swapper/310:43:033
134491480,2ptp4l0-21swapper/108:50:091
874799474,6cyclictest33-21ksoftirqd/208:20:232
8747994712,8cyclictest33-21ksoftirqd/209:24:202
8747994626,11cyclictest33-21ksoftirqd/211:54:052
874799462,4cyclictest0-21swapper/210:11:242
8747994619,3cyclictest33-21ksoftirqd/212:25:082
874599462,4cyclictest4767-21cpuspeed_turbos10:30:150
134491460,3ptp4l0-21swapper/312:15:293
8747994525,9cyclictest33-21ksoftirqd/211:41:512
874699452,8cyclictest27678-21apt-get07:50:131
874599451,5cyclictest9-21ksoftirqd/010:20:140
134491450,4ptp4l0-21swapper/111:08:181
134491440,5ptp4l0-21swapper/312:20:283
134491440,3ptp4l0-21swapper/309:52:243
134491430,4ptp4l25580-21apt-get11:15:143
134691420,11getstats0-21swapper/111:37:281
134691420,10getstats0-21swapper/112:11:191
134691420,10getstats0-21swapper/110:08:031
134491420,5ptp4l4949-21df_inode10:30:171
134491420,4ptp4l4916-21df09:20:141
134491420,4ptp4l28087-21diskstats10:10:171
134491420,4ptp4l23598-21iostat07:40:201
134491420,4ptp4l0-21swapper/107:30:181
134491420,3ptp4l9163-21apt-get08:20:141
134491420,3ptp4l20718-21apt-get07:35:141
134491410,6ptp4l0-21swapper/308:35:163
134491410,5ptp4l7991-21grep07:05:281
134491410,5ptp4l23848-21iostat11:10:211
134491410,5ptp4l0-21swapper/307:20:253
134491410,5ptp4l0-21swapper/110:40:171
134491410,4ptp4l512-21iostat10:20:191
134491410,4ptp4l28528-21hddtemp_smartct12:30:171
134491410,4ptp4l14734-21ntp_states07:20:241
134491410,4ptp4l12027-21memory07:15:211
134491410,4ptp4l0-21swapper/307:15:143
134491410,4ptp4l0-21swapper/307:15:003
134491410,4ptp4l0-21swapper/107:45:161
134491410,4ptp4l0-21swapper/107:10:161
134491410,3ptp4l0-21swapper/109:04:161
8746994015,22cyclictest10262-21kernelversion11:50:221
8746994012,27cyclictest0-21swapper/109:05:391
134691400,10getstats0-21swapper/112:21:451
134491400,5ptp4l0-21swapper/007:05:170
134491400,4ptp4l8617-21users10:35:311
134491400,4ptp4l8157-21ps10:35:273
134491400,4ptp4l8056-21meminfo11:45:201
134491400,4ptp4l5767-21memory11:40:231
134491400,4ptp4l30500-21hddtemp_smartct10:15:171
134491400,4ptp4l30183-21df07:55:151
134491400,4ptp4l28166-21df11:20:141
134491400,4ptp4l26581-21meminfo11:15:211
134491400,4ptp4l25682-21hddtemp_smartct08:55:161
134491400,4ptp4l18797-21hddtemp_smartct08:40:171
134491400,4ptp4l18678-21df11:00:151
134491400,4ptp4l16717-21iostat10:55:181
134491400,4ptp4l0-21swapper/109:40:241
134491400,4ptp4l0-21swapper/108:15:191
134491400,4ptp4l0-21swapper/108:12:001
134491400,3ptp4l21385-21iostat_ios09:55:201
134491400,3ptp4l18042-21ls12:05:301
134491400,19ptp4l25-21ksoftirqd/110:04:461
46198390,3rtkit-daemon460-21rtkit-daemon09:13:563
134491390,5ptp4l27730-21awk07:50:133
134491390,4ptp4l668-21/usr/sbin/munin11:30:201
134491390,4ptp4l26433-21ntp_states08:55:233
134491390,4ptp4l17342-21ntp_states09:45:241
134491390,4ptp4l0-21swapper/311:46:083
134491390,4ptp4l0-21swapper/311:35:263
134491390,4ptp4l0-21swapper/310:00:293
134491390,4ptp4l0-21swapper/309:35:293
134491390,4ptp4l0-21swapper/307:37:153
134491390,4ptp4l0-21swapper/307:30:093
134491390,4ptp4l0-21swapper/307:30:003
134491390,4ptp4l0-21swapper/109:35:241
134491390,4ptp4l0-21swapper/108:25:081
134491390,4ptp4l0-21swapper/108:00:561
134491390,3ptp4l16857-21meminfo07:25:211
134491390,3ptp4l15532-21users10:50:321
134491390,2ptp4l32546-21apt-get11:30:143
134491380,5ptp4l0-21swapper/312:10:303
134491380,5ptp4l0-21swapper/308:45:123
134491380,4ptp4l0-21swapper/310:30:253
134491380,4ptp4l0-21swapper/309:24:143
134491380,4ptp4l0-21swapper/309:07:383
134491380,4ptp4l0-21swapper/308:22:523
134491380,4ptp4l0-21swapper/308:05:393
134491380,4ptp4l0-21swapper/308:00:253
134491380,4ptp4l0-21swapper/307:41:173
134491380,4ptp4l0-21swapper/111:55:211
134491380,4ptp4l0-21swapper/111:28:321
134491380,4ptp4l0-21swapper/110:46:451
134491380,4ptp4l0-21swapper/110:25:191
134491380,4ptp4l0-21swapper/109:50:281
134491380,4ptp4l0-21swapper/109:10:041
134491380,4ptp4l0-21swapper/108:45:131
134491380,3ptp4l15828-21awk08:35:003
134491380,3ptp4l0-21swapper/311:55:353
134491380,3ptp4l0-21swapper/309:03:363
134491380,3ptp4l0-21swapper/109:15:191
134491380,3ptp4l0-21swapper/109:15:191
134491370,5ptp4l0-21swapper/312:30:133
134491370,5ptp4l0-21swapper/310:15:133
134491370,4ptp4l0-21swapper/312:04:583
134491370,4ptp4l0-21swapper/311:28:393
134491370,4ptp4l0-21swapper/311:02:263
134491370,4ptp4l0-21swapper/310:13:193
134491370,4ptp4l0-21swapper/309:59:593
134491370,4ptp4l0-21swapper/308:29:083
134491370,3ptp4l0-21swapper/312:27:073
134491370,3ptp4l0-21swapper/311:10:423
134491370,3ptp4l0-21swapper/310:51:593
134491370,3ptp4l0-21swapper/308:53:563
134491360,4ptp4l0-21swapper/312:09:123
134491360,4ptp4l0-21swapper/311:51:543
134491360,4ptp4l0-21swapper/309:34:423
134491360,3ptp4l0-21swapper/311:20:173
134491360,3ptp4l0-21swapper/310:25:373
134491360,3ptp4l0-21swapper/310:23:273
134491360,3ptp4l0-21swapper/310:08:283
134491360,3ptp4l0-21swapper/309:25:223
134491360,3ptp4l0-21swapper/308:15:313
134491360,3ptp4l0-21swapper/308:11:483
134491350,4ptp4l0-21swapper/312:35:033
134491350,3ptp4l0-21swapper/308:42:293
134491340,3ptp4l0-21swapper/311:40:063
134491340,3ptp4l0-21swapper/309:18:063
134491340,3ptp4l0-21swapper/309:18:063
8748993226,4cyclictest41-21ksoftirqd/310:46:433
134491320,3ptp4l0-21swapper/307:59:193
134491320,3ptp4l0-21swapper/307:48:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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