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2026-03-17 - 16:20
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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 rackdslot4.osadl.org (updated Tue Mar 17, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236832203170,22sleep30-21swapper/307:09:243
235182200167,22sleep10-21swapper/107:07:211
236902199166,22sleep00-21swapper/007:09:290
235762198166,21sleep20-21swapper/207:08:062
2904321660,2sleep20-21swapper/207:20:132
2515021430,6sleep22402699cyclictest09:20:242
25092660,4sleep3391rcuc/310:45:213
138491660,1ptp4l32553-21grep11:45:233
24025996110,16cyclictest11886-21hddtemp_smartct10:00:141
24025996010,11cyclictest5420-21/usr/sbin/munin11:55:271
2402599598,11cyclictest20189-21fgrep09:10:231
2402599597,18cyclictest21822-21/usr/sbin/munin10:20:121
138491590,1ptp4l401ktimersoftd/311:55:253
2402599589,12cyclictest20791-21taskset10:16:141
2402599587,11cyclictest9388-21fschecks_count08:50:131
2402599586,17cyclictest26156-21apt-get09:25:111
2402599585,18cyclictest30174-21sensors11:40:251
24025995810,10cyclictest6839-21/usr/sbin/munin07:40:131
2402599578,10cyclictest5903-21/usr/sbin/munin07:35:261
2402499574,6cyclictest5611-21ps07:35:220
161232570,1sleep30-21swapper/309:05:003
2402599558,11cyclictest26032-21taskset08:18:161
2402599558,11cyclictest16333-21chrt11:15:071
2402599558,11cyclictest13196-21chrt12:13:081
2402599558,10cyclictest30733-21taskset10:37:231
2402599557,11cyclictest25610-21chrt12:39:321
2402599549,11cyclictest13865-21taskset07:54:571
2402599548,11cyclictest8438-21chrt08:47:121
2402599547,16cyclictest16713-21if_enp1s012:20:151
2402599546,18cyclictest10470-21taskset07:45:221
24025995411,16cyclictest32546-21load07:25:211
2402599539,11cyclictest23488-21cron11:30:001
2402599538,9cyclictest32454-21runrttasks09:35:221
2402599536,11cyclictest18097-21sensors08:00:231
24025995310,17cyclictest20722-21seq12:29:531
138491530,1ptp4l401ktimersoftd/308:02:143
43142520,2sleep00-21swapper/008:40:140
2402599527,9cyclictest957-21chrt10:44:301
2402599526,11cyclictest8600-21latency_hist09:55:001
2402599526,11cyclictest232152sleep109:17:291
2402599526,11cyclictest232152sleep109:17:291
2402599526,10cyclictest156872sleep112:18:331
2402599524,11cyclictest2803-21grep08:35:221
2402599515,10cyclictest39222sleep107:34:201
155142510,2sleep20-21swapper/207:55:232
2402599505,11cyclictest4819-21irqrtprio09:45:211
2402599498,11cyclictest31002-21chrt07:22:391
2402599498,10cyclictest26179-21chrt07:13:581
2402599497,13cyclictest1550-21df11:50:131
2402599497,12cyclictest21708-21iostat12:30:211
2402599496,14cyclictest17409-21memory09:05:211
2402599487,17cyclictest23095-21timedrift08:10:261
2402599487,13cyclictest27614-21memory07:15:191
2402599486,14cyclictest2520-21memory09:40:211
2402599486,13cyclictest19826-21irqstats11:20:181
24027994724,20cyclictest6488-21cron07:40:003
2402599478,11cyclictest11948-21perl08:55:181
2402599477,11cyclictest29709-21meminfo09:30:201
2402499477,5cyclictest9-21ksoftirqd/012:08:180
2402499476,5cyclictest9-21ksoftirqd/011:05:140
2402499471,7cyclictest27311-21wc11:35:210
2402499471,6cyclictest9-21ksoftirqd/010:55:130
2402599467,9cyclictest15753-21chrt09:01:171
2402599467,10cyclictest25785-21taskset11:33:011
2402599466,12cyclictest24800-21meminfo09:20:191
2402499467,5cyclictest9-21ksoftirqd/009:45:480
2402499466,5cyclictest9-21ksoftirqd/008:38:090
50798450,10rtkit-daemon0-21swapper/211:30:102
2402599458,7cyclictest5940-21chrt08:41:381
2402599458,17cyclictest8417-21runrttasks12:04:441
2402599457,11cyclictest4360-21/usr/sbin/munin10:50:141
2402499456,5cyclictest9-21ksoftirqd/010:10:580
2402499456,5cyclictest9-21ksoftirqd/009:15:260
2402499456,5cyclictest9-21ksoftirqd/009:15:260
2402499452,6cyclictest9695-21uniq07:45:150
2402499452,6cyclictest9-21ksoftirqd/007:25:200
2402499452,6cyclictest18891-21dpkg10:15:110
2402499451,6cyclictest20229-21mailstats09:10:240
2402499446,9cyclictest9-21ksoftirqd/009:25:210
2402499446,5cyclictest9-21ksoftirqd/011:40:190
2402499445,4cyclictest9-21ksoftirqd/012:24:340
2402499444,5cyclictest9-21ksoftirqd/007:57:540
2402499443,6cyclictest25771-21latency_hist12:40:000
2402499443,6cyclictest101ktimersoftd/010:20:100
24024994421,6cyclictest9-21ksoftirqd/007:40:100
2402499440,6cyclictest9-21ksoftirqd/009:25:010
2402599438,18cyclictest15987-21chrt11:13:391
2402599438,10cyclictest13622-21taskset11:09:451
2402599436,10cyclictest3425-21taskset10:48:431
2402599432,10cyclictest0-21swapper/110:10:151
2402499435,5cyclictest9-21ksoftirqd/009:30:130
2402499434,5cyclictest9-21ksoftirqd/010:38:240
2402499432,5cyclictest9-21ksoftirqd/007:20:160
2402599426,11cyclictest27554-21/usr/sbin/munin08:20:201
2402499426,6cyclictest9-21ksoftirqd/010:25:260
2402499426,5cyclictest9-21ksoftirqd/012:25:240
2402499425,5cyclictest9-21ksoftirqd/011:27:190
2402499422,6cyclictest101ktimersoftd/010:00:190
138491420,1ptp4l0-21swapper/308:05:153
138491420,0ptp4l401ktimersoftd/311:10:323
138491420,0ptp4l401ktimersoftd/307:17:213
134991420,7getstats0-21swapper/310:00:423
2402599416,7cyclictest10238-21open_files11:00:211
2402499416,5cyclictest9-21ksoftirqd/009:55:150
2402499415,4cyclictest9-21ksoftirqd/007:30:160
2402499412,6cyclictest9-21ksoftirqd/007:10:220
24024994125,5cyclictest9-21ksoftirqd/007:50:220
138491410,0ptp4l401ktimersoftd/308:55:323
2402499405,5cyclictest9-21ksoftirqd/011:15:150
2402499404,5cyclictest9-21ksoftirqd/008:10:260
138491400,1ptp4l401ktimersoftd/312:19:523
24027993933,4cyclictest41-21ksoftirqd/310:15:003
24026993934,3cyclictest33-21ksoftirqd/209:50:012
24026993934,3cyclictest33-21ksoftirqd/207:30:012
2402599395,8cyclictest15654-21taskset10:06:041
2402599395,13cyclictest20904-21taskset08:05:321
2402499395,5cyclictest9-21ksoftirqd/011:10:120
2402499392,8cyclictest9-21ksoftirqd/009:54:490
2402499392,6cyclictest9-21ksoftirqd/008:50:090
24027993834,2cyclictest9291-21sh09:55:153
24027993833,3cyclictest41-21ksoftirqd/310:25:003
24026993832,3cyclictest33-21ksoftirqd/209:15:002
24025993831,4cyclictest25-21ksoftirqd/111:45:281
2402499388,5cyclictest9-21ksoftirqd/008:15:270
2402499384,6cyclictest9-21ksoftirqd/010:53:520
24024993821,5cyclictest9-21ksoftirqd/012:00:140
138491380,0ptp4l401ktimersoftd/307:20:183
24027993732,3cyclictest41-21ksoftirqd/308:50:013
24027993731,4cyclictest41-21ksoftirqd/310:58:253
24027993730,5cyclictest41-21ksoftirqd/309:25:013
24026993731,3cyclictest33-21ksoftirqd/211:17:372
2402599377,10cyclictest8388-21chrt10:55:581
2402599376,10cyclictest10893-21chrt12:09:591
24024993731,4cyclictest9-21ksoftirqd/011:52:170
24024993723,6cyclictest9-21ksoftirqd/009:05:130
2402499371,5cyclictest9-21ksoftirqd/010:45:100
24027993631,3cyclictest41-21ksoftirqd/308:39:593
24027993631,3cyclictest41-21ksoftirqd/308:30:333
24027993630,4cyclictest41-21ksoftirqd/312:12:383
24027993630,4cyclictest41-21ksoftirqd/308:41:573
24027993629,5cyclictest41-21ksoftirqd/312:08:083
24027993629,5cyclictest41-21ksoftirqd/309:26:183
24026993631,3cyclictest33-21ksoftirqd/211:59:052
24026993630,4cyclictest33-21ksoftirqd/212:19:552
24026993630,4cyclictest33-21ksoftirqd/212:04:182
24026993630,4cyclictest33-21ksoftirqd/210:55:542
24026993630,4cyclictest33-21ksoftirqd/208:41:162
2402499364,5cyclictest9-21ksoftirqd/012:30:200
24024993631,3cyclictest9-21ksoftirqd/011:20:120
24024993630,4cyclictest9-21ksoftirqd/010:30:180
24024993622,6cyclictest9-21ksoftirqd/012:10:150
24024993621,6cyclictest9-21ksoftirqd/008:55:160
24027993529,4cyclictest41-21ksoftirqd/308:51:203
24026993530,3cyclictest33-21ksoftirqd/211:40:122
24026993530,3cyclictest33-21ksoftirqd/209:35:182
24026993529,4cyclictest33-21ksoftirqd/212:38:402
24026993529,4cyclictest33-21ksoftirqd/212:05:032
24026993529,4cyclictest33-21ksoftirqd/211:50:382
24026993529,4cyclictest33-21ksoftirqd/211:46:252
24026993529,4cyclictest33-21ksoftirqd/211:36:342
24026993529,4cyclictest33-21ksoftirqd/211:21:512
24026993529,4cyclictest33-21ksoftirqd/210:47:042
24026993529,4cyclictest33-21ksoftirqd/210:43:232
24026993529,4cyclictest33-21ksoftirqd/210:32:172
24026993529,4cyclictest33-21ksoftirqd/210:18:112
24026993529,4cyclictest33-21ksoftirqd/209:55:302
24026993528,5cyclictest33-21ksoftirqd/210:30:012
24026993528,4cyclictest33-21ksoftirqd/207:16:592
24026993528,4cyclictest33-21ksoftirqd/207:14:552
2402599358,18cyclictest29628-21iostat08:25:201
24024993530,3cyclictest9-21ksoftirqd/010:05:260
24024993528,4cyclictest9-21ksoftirqd/011:46:430
2402499352,6cyclictest14351-21fschecks_count09:00:150
24024993522,5cyclictest9-21ksoftirqd/009:35:180
24024993522,5cyclictest9-21ksoftirqd/008:45:190
24024993522,5cyclictest9-21ksoftirqd/008:00:190
24024993521,6cyclictest9-21ksoftirqd/007:15:200
24024993521,5cyclictest9-21ksoftirqd/008:25:200
138491350,0ptp4l401ktimersoftd/311:35:203
24027993428,4cyclictest41-21ksoftirqd/307:49:263
24027993420,12cyclictest41-21ksoftirqd/307:10:103
24026993430,2cyclictest33-21ksoftirqd/212:25:242
24026993429,3cyclictest33-21ksoftirqd/210:38:212
24026993429,3cyclictest33-21ksoftirqd/207:37:332
24026993428,4cyclictest33-21ksoftirqd/211:01:442
24026993428,4cyclictest33-21ksoftirqd/210:12:222
24026993428,4cyclictest33-21ksoftirqd/209:16:062
24026993428,4cyclictest33-21ksoftirqd/209:16:062
24026993428,4cyclictest33-21ksoftirqd/208:32:002
24026993428,4cyclictest33-21ksoftirqd/208:28:452
24026993428,4cyclictest33-21ksoftirqd/207:42:142
24026993422,10cyclictest33-21ksoftirqd/207:30:282
2402599349,11cyclictest28027-21awk11:35:261
24025993428,4cyclictest25-21ksoftirqd/110:30:501
24025993428,4cyclictest25-21ksoftirqd/109:59:011
24024993429,3cyclictest9-21ksoftirqd/011:30:170
24024993427,4cyclictest9-21ksoftirqd/011:02:220
24024993426,5cyclictest9-21ksoftirqd/012:15:110
24024993421,5cyclictest9-21ksoftirqd/009:40:200
24024993421,5cyclictest9-21ksoftirqd/008:20:140
24024993420,6cyclictest9-21ksoftirqd/008:30:190
24024993420,5cyclictest9-21ksoftirqd/010:40:170
24024993419,7cyclictest9-21ksoftirqd/008:05:240
24027993328,3cyclictest41-21ksoftirqd/308:26:093
24027993328,3cyclictest41-21ksoftirqd/307:52:073
24027993327,4cyclictest41-21ksoftirqd/311:51:243
24027993327,4cyclictest41-21ksoftirqd/311:17:303
24027993327,4cyclictest41-21ksoftirqd/311:05:503
24027993327,4cyclictest41-21ksoftirqd/307:30:453
24026993328,3cyclictest33-21ksoftirqd/212:12:052
24026993328,3cyclictest33-21ksoftirqd/208:05:102
24026993327,4cyclictest33-21ksoftirqd/208:49:352
24026993327,4cyclictest33-21ksoftirqd/208:13:192
24026993327,4cyclictest33-21ksoftirqd/207:48:012
96092320,2sleep20-21swapper/208:50:142
24027993227,3cyclictest41-21ksoftirqd/312:03:013
24027993227,3cyclictest41-21ksoftirqd/311:22:083
24027993227,3cyclictest41-21ksoftirqd/310:33:283
24027993226,4cyclictest41-21ksoftirqd/311:26:003
24027993226,4cyclictest41-21ksoftirqd/310:16:053
24027993225,4cyclictest41-21ksoftirqd/309:30:083
24026993227,3cyclictest33-21ksoftirqd/209:05:192
24024993220,4cyclictest9-21ksoftirqd/011:55:170
1385913226,3phc2sys41-21ksoftirqd/312:30:143
24027993126,3cyclictest41-21ksoftirqd/312:22:433
24027993126,3cyclictest41-21ksoftirqd/309:51:243
24027993126,3cyclictest41-21ksoftirqd/309:37:313
24027993126,3cyclictest41-21ksoftirqd/309:15:103
24027993126,3cyclictest41-21ksoftirqd/309:15:103
24027993126,3cyclictest41-21ksoftirqd/308:20:013
24027993125,4cyclictest41-21ksoftirqd/310:50:393
24026993125,4cyclictest33-21ksoftirqd/210:52:052
24026993125,4cyclictest33-21ksoftirqd/210:02:432
24026993125,4cyclictest33-21ksoftirqd/208:59:372
24026993125,4cyclictest33-21ksoftirqd/208:22:382
24026993125,4cyclictest33-21ksoftirqd/208:01:412
2402599316,7cyclictest25229-21ptp4l-jitter10:25:231
2402599312,18cyclictest0-21swapper/107:55:261
138491310,0ptp4l401ktimersoftd/311:30:123
24027993025,3cyclictest41-21ksoftirqd/312:36:543
24027993024,4cyclictest41-21ksoftirqd/307:26:243
24026993024,4cyclictest33-21ksoftirqd/211:10:362
24026993024,4cyclictest33-21ksoftirqd/210:06:482
24026993024,4cyclictest33-21ksoftirqd/209:43:132
24026993024,4cyclictest33-21ksoftirqd/209:30:142
138491300,0ptp4l401ktimersoftd/308:20:133
24027992924,3cyclictest41-21ksoftirqd/309:49:053
24027992924,3cyclictest41-21ksoftirqd/307:44:343
24027992923,4cyclictest41-21ksoftirqd/311:04:223
24027992916,11cyclictest41-21ksoftirqd/310:25:183
24026992924,3cyclictest33-21ksoftirqd/212:21:182
24026992924,3cyclictest33-21ksoftirqd/211:09:092
24026992924,3cyclictest33-21ksoftirqd/210:23:512
24026992924,3cyclictest33-21ksoftirqd/208:37:242
138491290,0ptp4l401ktimersoftd/310:06:413
138491290,0ptp4l401ktimersoftd/307:57:013
24027992823,3cyclictest41-21ksoftirqd/308:11:363
24027992822,4cyclictest41-21ksoftirqd/310:43:493
24027992822,3cyclictest41-21ksoftirqd/311:40:193
24026992823,3cyclictest33-21ksoftirqd/209:50:472
24026992823,3cyclictest33-21ksoftirqd/208:18:492
24026992822,4cyclictest33-21ksoftirqd/209:25:362
2402599282,16cyclictest0-21swapper/108:30:151
24027992722,3cyclictest41-21ksoftirqd/309:42:453
24027992722,3cyclictest41-21ksoftirqd/309:13:243
24027992721,4cyclictest41-21ksoftirqd/312:27:193
24027992721,4cyclictest41-21ksoftirqd/310:36:343
24026992722,3cyclictest33-21ksoftirqd/211:26:422
24026992722,3cyclictest33-21ksoftirqd/207:52:382
24026992621,3cyclictest33-21ksoftirqd/209:04:302
138491260,0ptp4l401ktimersoftd/309:05:113
24026992520,3cyclictest33-21ksoftirqd/212:31:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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