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2026-07-26 - 00:38
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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 rackdslot3.osadl.org (updated Sat Jul 25, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205171,22phc2sys0-21swapper/307:09:273
221182202170,21sleep10-21swapper/107:08:531
219562202169,22sleep00-21swapper/007:06:470
219312202167,24sleep20-21swapper/207:06:292
22507998019,59cyclictest0-21swapper/109:40:331
22507997515,58cyclictest0-21swapper/111:40:341
139391680,1ptp4l391rcuc/310:45:503
139391610,1ptp4l401ktimersoftd/308:25:483
311612590,4sleep331164-21df_abs08:35:163
2250799560,1cyclictest0-21swapper/110:50:331
139391560,1ptp4l401ktimersoftd/310:09:533
22508995525,4cyclictest33-21ksoftirqd/208:20:172
22508995422,4cyclictest33-21ksoftirqd/209:40:262
22508995323,4cyclictest33-21ksoftirqd/211:30:172
22508995323,4cyclictest33-21ksoftirqd/209:40:002
22508995320,4cyclictest33-21ksoftirqd/210:40:012
22508995320,4cyclictest33-21ksoftirqd/210:40:012
2250699510,3cyclictest23471-21runrttasks08:20:060
139391510,1ptp4l391rcuc/307:45:233
22508995018,3cyclictest33-21ksoftirqd/208:35:012
22508995016,7cyclictest33-21ksoftirqd/210:25:272
22508995015,7cyclictest33-21ksoftirqd/207:20:142
2250899498,7cyclictest33-21ksoftirqd/209:05:252
22508994924,21cyclictest33-21ksoftirqd/209:55:012
22508994921,7cyclictest33-21ksoftirqd/209:55:152
22508994921,4cyclictest33-21ksoftirqd/209:45:222
2250899487,8cyclictest33-21ksoftirqd/208:15:182
22508994820,4cyclictest33-21ksoftirqd/210:10:272
22508994819,7cyclictest33-21ksoftirqd/210:50:172
22508994818,4cyclictest33-21ksoftirqd/209:30:222
2250799480,46cyclictest0-21swapper/111:15:231
2250899477,7cyclictest33-21ksoftirqd/209:20:262
2250899477,6cyclictest33-21ksoftirqd/211:20:232
2250899477,6cyclictest33-21ksoftirqd/210:45:192
2250899477,6cyclictest33-21ksoftirqd/208:40:182
22508994718,4cyclictest33-21ksoftirqd/211:40:162
2250899471,7cyclictest33-21ksoftirqd/210:20:012
22508994714,7cyclictest33-21ksoftirqd/207:45:152
22508994714,4cyclictest33-21ksoftirqd/207:35:142
22507994743,2cyclictest8009-21sshd08:55:121
22507994717,28cyclictest0-21swapper/110:15:221
2250799470,45cyclictest0-21swapper/111:25:231
2250899466,6cyclictest33-21ksoftirqd/212:00:252
22508994616,4cyclictest33-21ksoftirqd/207:50:232
22508994616,4cyclictest33-21ksoftirqd/207:50:232
22508994615,3cyclictest33-21ksoftirqd/210:55:142
22508994613,5cyclictest33-21ksoftirqd/209:25:282
2250699463,2cyclictest0-21swapper/011:21:280
2250899456,7cyclictest33-21ksoftirqd/208:35:262
22508994525,3cyclictest33-21ksoftirqd/211:50:292
22508994519,6cyclictest33-21ksoftirqd/211:05:142
22508994516,4cyclictest33-21ksoftirqd/209:00:152
22508994515,4cyclictest33-21ksoftirqd/212:20:242
22508994514,6cyclictest33-21ksoftirqd/211:28:202
22508994514,4cyclictest33-21ksoftirqd/209:15:002
22508994419,6cyclictest33-21ksoftirqd/207:40:172
22508994413,4cyclictest33-21ksoftirqd/212:05:292
22508994413,3cyclictest33-21ksoftirqd/208:10:292
22508994412,6cyclictest33-21ksoftirqd/210:00:152
22508994411,6cyclictest33-21ksoftirqd/207:30:232
22508994411,5cyclictest33-21ksoftirqd/211:55:252
22507994417,25cyclictest0-21swapper/112:35:241
2250799440,42cyclictest0-21swapper/112:05:241
134391440,7getstats2250999cyclictest11:40:313
22508994318,7cyclictest33-21ksoftirqd/208:45:212
22508994318,6cyclictest33-21ksoftirqd/212:10:152
22508994316,3cyclictest33-21ksoftirqd/208:00:172
22508994311,5cyclictest33-21ksoftirqd/210:05:172
139391430,0ptp4l401ktimersoftd/311:15:253
2250899426,5cyclictest33-21ksoftirqd/208:55:182
22508994211,4cyclictest33-21ksoftirqd/211:04:592
139391420,0ptp4l401ktimersoftd/312:10:213
22508994110,4cyclictest33-21ksoftirqd/207:25:142
139391410,0ptp4l401ktimersoftd/307:18:023
2250899409,10cyclictest33-21ksoftirqd/208:05:172
2250899408,5cyclictest33-21ksoftirqd/211:45:152
2250899405,3cyclictest121rcu_preempt11:10:252
2250899405,3cyclictest121rcu_preempt11:10:252
2250899403,6cyclictest33-21ksoftirqd/210:30:262
22508994025,13cyclictest33-21ksoftirqd/212:35:012
2250899401,3cyclictest121rcu_preempt11:35:262
22508994010,9cyclictest33-21ksoftirqd/208:25:252
2250899400,2cyclictest121rcu_preempt10:20:222
2250899398,6cyclictest33-21ksoftirqd/210:40:212
2250899394,7cyclictest33-21ksoftirqd/208:55:002
2250899394,7cyclictest33-21ksoftirqd/208:55:002
22508993930,3cyclictest33-21ksoftirqd/209:20:002
22508993926,11cyclictest33-21ksoftirqd/207:20:012
22507993917,21cyclictest0-21swapper/108:15:231
139391390,1ptp4l401ktimersoftd/311:53:273
2250899389,8cyclictest33-21ksoftirqd/207:15:012
2250899388,4cyclictest33-21ksoftirqd/207:55:152
22506993831,4cyclictest9-21ksoftirqd/007:40:130
22509993732,3cyclictest18191-21cron10:25:013
2250899374,7cyclictest33-21ksoftirqd/212:25:212
22508993731,3cyclictest33-21ksoftirqd/211:15:162
22509993631,3cyclictest41-21ksoftirqd/309:00:003
22509993631,3cyclictest41-21ksoftirqd/307:55:123
22509993630,4cyclictest41-21ksoftirqd/308:40:413
22509993630,4cyclictest41-21ksoftirqd/308:04:023
22509993630,4cyclictest41-21ksoftirqd/307:36:423
22508993632,2cyclictest33-21ksoftirqd/212:15:192
22507993631,3cyclictest25-21ksoftirqd/108:51:281
22507993631,3cyclictest25-21ksoftirqd/108:51:281
22507993631,3cyclictest25-21ksoftirqd/107:19:351
22507993630,4cyclictest25-21ksoftirqd/112:14:181
22507993630,4cyclictest25-21ksoftirqd/109:53:441
22507993630,4cyclictest25-21ksoftirqd/107:49:361
2250799361,34cyclictest0-21swapper/112:00:441
2250799360,1cyclictest0-21swapper/107:11:031
22506993630,4cyclictest9-21ksoftirqd/007:20:010
22506993613,20cyclictest7898-21date08:55:010
22506993613,20cyclictest7898-21date08:55:010
22506993611,22cyclictest14453-21awk12:30:180
22509993529,4cyclictest41-21ksoftirqd/309:31:563
22509993529,4cyclictest41-21ksoftirqd/307:52:513
22509993529,4cyclictest41-21ksoftirqd/307:52:513
2250999351,32cyclictest28167-21cron10:45:003
22508993531,3cyclictest33-21ksoftirqd/212:35:202
2250799357,26cyclictest0-21swapper/110:55:231
22507993529,4cyclictest25-21ksoftirqd/111:10:391
22507993529,4cyclictest25-21ksoftirqd/111:10:391
22507993529,4cyclictest25-21ksoftirqd/110:43:141
22507993529,4cyclictest25-21ksoftirqd/109:56:331
2250699353,28cyclictest24526-21grep09:30:000
22506993529,4cyclictest9-21ksoftirqd/010:44:460
22506993513,20cyclictest3262-21/usr/sbin/munin08:45:230
22506993511,21cyclictest20852-21latency_hist08:15:000
2250699350,5cyclictest6494-21perf12:15:000
139391350,0ptp4l401ktimersoftd/309:25:143
22509993429,3cyclictest41-21ksoftirqd/308:14:393
22509993428,4cyclictest41-21ksoftirqd/311:48:553
22509993428,4cyclictest41-21ksoftirqd/310:36:273
22509993428,4cyclictest41-21ksoftirqd/310:36:273
22509993428,4cyclictest41-21ksoftirqd/309:00:473
22509993428,4cyclictest41-21ksoftirqd/308:15:383
22507993429,3cyclictest25-21ksoftirqd/109:50:011
22507993428,4cyclictest25-21ksoftirqd/112:17:431
22507993428,4cyclictest25-21ksoftirqd/111:06:541
22507993428,4cyclictest25-21ksoftirqd/110:39:381
22507993428,4cyclictest25-21ksoftirqd/110:39:381
22507993428,4cyclictest25-21ksoftirqd/107:56:501
22507993428,3cyclictest25-21ksoftirqd/110:13:481
22506993428,4cyclictest9-21ksoftirqd/010:53:530
22506993427,4cyclictest9-21ksoftirqd/012:03:370
2250699342,29cyclictest16257-21grep10:20:150
22506993411,20cyclictest16131-21latency_hist08:05:010
22506993410,22cyclictest18255-21seq08:07:160
22506993410,21cyclictest3410-21ptp4l07:35:240
2250699340,3cyclictest24155-21sed10:35:210
2250699340,3cyclictest24155-21sed10:35:200
2250699340,3cyclictest18546-21latency_hist12:40:000
2250699340,3cyclictest11366-21latency_hist07:55:000
2250699340,3cyclictest11366-21latency_hist07:55:000
2250699340,3cyclictest11018-21if_err_enp4s009:00:190
2250699340,2cyclictest13822-21sed08:00:000
139391340,0ptp4l401ktimersoftd/312:00:553
22509993328,3cyclictest41-21ksoftirqd/311:12:353
22509993328,3cyclictest41-21ksoftirqd/311:12:353
22509993328,3cyclictest41-21ksoftirqd/309:59:443
22509993327,4cyclictest41-21ksoftirqd/312:31:523
22509993327,4cyclictest41-21ksoftirqd/311:34:243
22509993327,4cyclictest41-21ksoftirqd/310:32:063
22509993327,4cyclictest41-21ksoftirqd/310:27:283
22509993327,4cyclictest41-21ksoftirqd/309:54:553
22509993327,4cyclictest41-21ksoftirqd/309:45:313
22509993327,4cyclictest41-21ksoftirqd/308:49:043
22509993327,4cyclictest41-21ksoftirqd/308:07:313
2250799334,27cyclictest0-21swapper/109:20:231
22507993328,3cyclictest25-21ksoftirqd/109:14:121
22507993328,3cyclictest25-21ksoftirqd/109:03:131
22507993328,3cyclictest25-21ksoftirqd/107:31:281
22507993328,3cyclictest25-21ksoftirqd/107:23:491
22507993327,4cyclictest25-21ksoftirqd/111:04:571
22507993327,4cyclictest25-21ksoftirqd/109:32:461
22507993327,4cyclictest25-21ksoftirqd/107:37:011
22507993327,3cyclictest25-21ksoftirqd/108:05:401
22507993326,4cyclictest25-21ksoftirqd/108:35:011
2250699336,23cyclictest5784-21/usr/sbin/munin11:05:110
22506993328,3cyclictest9-21ksoftirqd/009:48:010
22506993328,3cyclictest9-21ksoftirqd/008:30:130
22506993327,4cyclictest9-21ksoftirqd/012:28:010
22506993327,4cyclictest9-21ksoftirqd/009:13:150
22506993327,4cyclictest9-21ksoftirqd/008:55:470
22506993312,19cyclictest18641-21/usr/sbin/munin10:25:250
22506993311,20cyclictest3481-21date12:05:280
22506993310,20cyclictest31131-21unixbench_singl09:40:280
2250699330,3cyclictest30721-21sed07:25:200
2250699330,3cyclictest28620-21/usr/sbin/munin10:45:130
2250699330,3cyclictest22835-21sed08:15:280
2250699330,3cyclictest18337-21irqrtprio11:30:200
2250699330,3cyclictest12543-21/usr/sbin/munin10:10:250
2250699330,3cyclictest10482-21sed10:05:280
2250699330,3cyclictest0-21swapper/008:35:290
2250699330,2cyclictest22522-21/usr/sbin/munin07:10:200
22509993227,3cyclictest41-21ksoftirqd/308:53:413
22509993227,3cyclictest41-21ksoftirqd/308:53:403
22509993227,3cyclictest41-21ksoftirqd/307:10:123
22509993226,4cyclictest41-21ksoftirqd/312:38:033
22509993226,4cyclictest41-21ksoftirqd/311:56:253
22509993226,4cyclictest41-21ksoftirqd/307:33:173
22507993227,3cyclictest25-21ksoftirqd/112:26:271
22507993227,3cyclictest25-21ksoftirqd/111:58:261
22507993227,3cyclictest25-21ksoftirqd/108:12:581
22507993226,4cyclictest25-21ksoftirqd/111:21:541
22507993226,4cyclictest25-21ksoftirqd/109:09:111
2250799321,2cyclictest0-21swapper/111:50:231
2250699329,20cyclictest14061-21ptp4l09:05:250
2250699326,22cyclictest10025-21irqstats12:20:220
22506993227,3cyclictest9-21ksoftirqd/011:14:590
22506993227,3cyclictest9-21ksoftirqd/011:14:590
22506993226,4cyclictest9-21ksoftirqd/009:56:280
139391320,9ptp4l401ktimersoftd/310:50:593
139391320,9ptp4l0-21swapper/311:29:493
139391320,10ptp4l0-21swapper/308:32:483
22509993126,3cyclictest41-21ksoftirqd/311:20:583
22509993126,3cyclictest41-21ksoftirqd/311:06:483
22509993125,4cyclictest41-21ksoftirqd/309:17:233
2250799317,21cyclictest20403-21users10:25:291
22507993126,3cyclictest25-21ksoftirqd/112:30:141
22507993126,3cyclictest25-21ksoftirqd/109:17:551
22507993126,3cyclictest25-21ksoftirqd/108:22:591
22507993126,3cyclictest25-21ksoftirqd/107:25:441
22507993125,4cyclictest25-21ksoftirqd/111:34:541
22507993124,4cyclictest25-21ksoftirqd/110:03:071
22507993124,4cyclictest25-21ksoftirqd/108:39:231
2250699319,20cyclictest7276-21fschecks_count07:45:170
2250699319,19cyclictest22574-21cpuspeed_turbos11:40:150
2250699317,21cyclictest5056-21unixbench_multi11:00:270
22506993126,3cyclictest9-21ksoftirqd/011:52:420
22506993126,3cyclictest9-21ksoftirqd/011:45:290
22506993126,3cyclictest9-21ksoftirqd/011:37:460
22506993125,4cyclictest9-21ksoftirqd/011:27:500
22506993125,4cyclictest9-21ksoftirqd/010:32:380
22506993125,4cyclictest9-21ksoftirqd/009:33:380
22506993124,4cyclictest9-21ksoftirqd/011:58:400
22506993124,4cyclictest9-21ksoftirqd/009:54:110
2250699310,3cyclictest1788-21sshd07:34:520
2250699310,3cyclictest10500-21/usr/sbin/munin11:15:240
2250699310,2cyclictest29375-21latency_hist09:40:000
22509993025,3cyclictest41-21ksoftirqd/310:00:133
22509993025,3cyclictest41-21ksoftirqd/309:44:563
22509993025,3cyclictest41-21ksoftirqd/309:13:323
22509993025,3cyclictest41-21ksoftirqd/307:28:493
22509993024,4cyclictest41-21ksoftirqd/309:06:533
22507993025,3cyclictest25-21ksoftirqd/111:39:161
22507993025,3cyclictest25-21ksoftirqd/109:27:421
22507993024,4cyclictest25-21ksoftirqd/108:47:291
22507993024,4cyclictest25-21ksoftirqd/108:01:201
2250699307,20cyclictest551-21rs:main0
2250699306,21cyclictest1815-21grep08:40:200
2250699302,4cyclictest2518-21gnome-shell12:18:580
2250699301,4cyclictest572-21avahi-daemon10:20:010
2250699301,4cyclictest2518-21gnome-shell10:02:580
139391300,0ptp4l401ktimersoftd/312:15:233
139391300,0ptp4l401ktimersoftd/312:05:263
139391300,0ptp4l401ktimersoftd/311:39:253
139391300,0ptp4l401ktimersoftd/307:22:423
22509992923,4cyclictest41-21ksoftirqd/312:26:103
22507992924,3cyclictest25-21ksoftirqd/111:45:311
22507992924,3cyclictest25-21ksoftirqd/108:27:021
2250799291,3cyclictest9596-21iostat_ios10:05:201
2250799290,28cyclictest0-21swapper/108:44:051
2250699297,20cyclictest18886-21mailstats09:15:250
2250699290,3cyclictest27350-21apt-get07:20:120
2250699290,2cyclictest19885-21apt-get09:20:130
139391290,0ptp4l401ktimersoftd/307:43:233
22509992822,4cyclictest41-21ksoftirqd/310:59:223
22509992822,4cyclictest41-21ksoftirqd/309:36:503
22507992823,3cyclictest25-21ksoftirqd/109:38:071
22507992822,4cyclictest25-21ksoftirqd/107:44:591
22509992723,2cyclictest41-21ksoftirqd/309:24:543
22509992722,3cyclictest41-21ksoftirqd/312:24:393
22507992722,3cyclictest25-21ksoftirqd/110:45:311
22507992721,4cyclictest25-21ksoftirqd/110:33:481
2250699271,5cyclictest946-21apt-get10:55:110
139391270,0ptp4l401ktimersoftd/310:14:063
22509992621,3cyclictest41-21ksoftirqd/310:17:213
22509992621,3cyclictest41-21ksoftirqd/308:22:133
2250799260,24cyclictest0-21swapper/112:22:041
22509992520,3cyclictest41-21ksoftirqd/311:02:283
2250799240,23cyclictest0-21swapper/110:20:511
22507991814,3cyclictest25-21ksoftirqd/107:50:141
22507991814,3cyclictest25-21ksoftirqd/107:50:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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