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2026-06-03 - 07:53
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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 rackdslot2.osadl.org (updated Wed Jun 03, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109182226161,21sleep00-21swapper/019:08:540
109262208175,22sleep20-21swapper/219:09:002
107522206171,23sleep10-21swapper/119:06:491
106382206172,22sleep30-21swapper/319:05:303
2322021550,7sleep31130199cyclictest23:05:283
135191820,1getstats0-21swapper/323:10:173
1129999677,11cyclictest27427-21awk22:10:011
135291660,7getstats1130199cyclictest21:10:173
135191640,7getstats1130199cyclictest22:50:173
33512630,5sleep31130199cyclictest23:35:013
1129999639,10cyclictest16582-21latency_hist22:55:001
1129999635,17cyclictest0-21swapper/122:20:201
11299996311,10cyclictest6744-21sed23:40:191
11299996310,10cyclictest26168-21latency_hist23:15:001
1129999629,10cyclictest28823-21expr21:05:141
1129999626,11cyclictest32433-21grep00:35:141
1129999623,17cyclictest0-21swapper/120:00:251
11299996210,9cyclictest14051-21irqrtprio21:40:181
1129999616,11cyclictest27480-21sort19:55:011
1129999609,9cyclictest16514-21latency_hist19:25:011
1129999609,15cyclictest5649-21cut22:30:191
1129999605,10cyclictest0-21swapper/121:25:191
11299996011,17cyclictest19175-21ptp4l-jitter00:05:281
11299996011,10cyclictest3784-21sed21:20:151
11299996010,9cyclictest30105-21ptp4l-jitter23:20:241
11299996010,10cyclictest19581-21latency_hist19:35:001
1129999599,11cyclictest3843-21switchtime22:25:241
1129999598,9cyclictest32579-21cpuspeed_turbos20:05:171
1129999598,9cyclictest22665-21/usr/sbin/munin22:00:191
1129999598,9cyclictest11047-21df_abs23:50:161
1129999598,10cyclictest9543-21sed20:25:011
1129999597,10cyclictest14616-21cstates20:35:141
1129999595,18cyclictest0-21swapper/121:15:281
1129999595,16cyclictest0-21swapper/123:25:181
1129999594,17cyclictest0-21swapper/100:20:161
11299995910,9cyclictest28730-21phc2sys00:25:231
11299995910,10cyclictest10940-21cstates21:35:131
1129999586,11cyclictest23751-21latency_hist20:55:001
1129999585,10cyclictest0-21swapper/100:30:151
11299995811,18cyclictest29217-21cat19:55:271
11299995810,10cyclictest13967-21sed23:55:191
1129999578,10cyclictest28537-21awk23:20:001
1129999578,10cyclictest28537-21awk23:20:001
1129999577,17cyclictest16356-21irqrtprio21:45:181
1129999577,11cyclictest19076-21latency_hist20:45:001
11299995711,9cyclictest18475-21cat21:50:181
11299995710,10cyclictest2521-21gnome-shell19:44:591
11300995621,9cyclictest33-21ksoftirqd/219:50:232
1129999569,9cyclictest3311-21latency_hist23:35:001
1129999569,10cyclictest8707-21df_abs21:30:291
1129999568,8cyclictest8719-21grep23:45:161
1129999564,17cyclictest0-21swapper/120:55:151
1129999557,9cyclictest12859-21sed19:10:241
1129999556,10cyclictest10391-21sed20:25:181
11298995518,4cyclictest9-21ksoftirqd/000:20:150
139291540,1ptp4l391rcuc/321:42:233
1130099546,8cyclictest33-21ksoftirqd/219:10:132
1130099546,8cyclictest33-21ksoftirqd/200:40:012
1130099542,6cyclictest321ktimersoftd/220:50:162
1129999549,15cyclictest7129-21/usr/sbin/munin22:35:231
1129999547,10cyclictest20299-21sed23:00:181
11298995420,4cyclictest9-21ksoftirqd/023:30:000
1130199532,10cyclictest211732sleep320:48:403
1130099533,6cyclictest33-21ksoftirqd/222:00:282
1130099533,10cyclictest33-21ksoftirqd/222:40:172
1129999537,18cyclictest5903-21sed23:40:011
1129999537,18cyclictest31776-21irqrtprio21:10:191
1129999534,9cyclictest0-21swapper/119:45:261
11299995310,7cyclictest3511-21meminfo20:10:201
1130199520,12cyclictest26936-21chrt19:51:153
1130199520,12cyclictest13765-21chrt22:46:063
1130199520,11cyclictest19234-21chrt19:31:463
1130199520,10cyclictest14929-21chrt23:56:273
1130099525,8cyclictest33-21ksoftirqd/221:40:292
1130099523,10cyclictest33-21ksoftirqd/220:40:002
1130099521,16cyclictest33-21ksoftirqd/219:45:002
1129999527,16cyclictest31471-21sed22:15:251
1129999526,15cyclictest10189-21irqrtprio22:40:181
1129999526,11cyclictest27612-21/usr/sbin/munin22:10:141
1130199510,19cyclictest4485-21seq20:13:313
1130199510,13cyclictest17579-21chrt00:04:453
1130199510,12cyclictest25240-21chrt22:05:063
1130199510,11cyclictest19965-21chrt21:54:033
1130099515,9cyclictest33-21ksoftirqd/221:45:132
1130099515,7cyclictest33-21ksoftirqd/221:05:182
1130099513,6cyclictest33-21ksoftirqd/219:20:092
1130099512,6cyclictest321ktimersoftd/200:15:282
1129999519,9cyclictest16900-21python00:00:271
1129999517,10cyclictest27880-21timerwakeupswit21:00:271
11298995115,5cyclictest9-21ksoftirqd/000:40:000
107132510,1sleep20-21swapper/221:35:012
1130199505,9cyclictest6683-21taskset22:32:263
1130199500,13cyclictest17073-21chrt19:29:213
1130199500,10cyclictest16243-21taskset19:21:433
1130099506,9cyclictest33-21ksoftirqd/222:10:192
11300995016,6cyclictest33-21ksoftirqd/220:05:002
1130099500,7cyclictest321ktimersoftd/200:20:202
1129999500,10cyclictest20783-21cut21:55:161
11298995018,4cyclictest9-21ksoftirqd/021:50:160
1130199490,11cyclictest23436-21chrt20:52:213
1130099495,10cyclictest33-21ksoftirqd/222:45:172
1130099492,7cyclictest33-21ksoftirqd/223:50:232
11298994916,4cyclictest9-21ksoftirqd/022:55:280
11298994916,4cyclictest9-21ksoftirqd/022:55:000
11298994915,5cyclictest9-21ksoftirqd/019:40:000
11298994915,5cyclictest9-21ksoftirqd/019:25:000
1130199480,9cyclictest31695-21chrt00:30:493
1130199480,19cyclictest30491-21runrttasks21:06:343
11300994826,11cyclictest33-21ksoftirqd/223:15:122
11300994826,11cyclictest33-21ksoftirqd/223:15:122
1130099481,7cyclictest33-21ksoftirqd/223:00:142
1130099481,5cyclictest33-21ksoftirqd/200:25:222
1130099480,7cyclictest321ktimersoftd/221:05:012
1130099480,7cyclictest321ktimersoftd/219:55:012
1129999488,9cyclictest20187-21meminfo20:45:211
11298994813,6cyclictest9-21ksoftirqd/021:25:000
1130199470,11cyclictest28177-21chrt23:15:433
1130199470,11cyclictest28177-21chrt23:15:433
1130099476,9cyclictest33-21ksoftirqd/221:10:142
1130099475,9cyclictest33-21ksoftirqd/220:30:222
1130099475,8cyclictest33-21ksoftirqd/221:55:132
1130099474,8cyclictest33-21ksoftirqd/223:45:282
1130099474,8cyclictest33-21ksoftirqd/223:35:132
1130099474,8cyclictest33-21ksoftirqd/200:05:182
1130099473,6cyclictest33-21ksoftirqd/221:29:592
11300994718,5cyclictest33-21ksoftirqd/222:34:222
1130099471,6cyclictest33-21ksoftirqd/219:45:202
1130099470,7cyclictest321ktimersoftd/220:50:002
1130099470,6cyclictest321ktimersoftd/220:05:302
1130099470,5cyclictest33-21ksoftirqd/222:20:232
1129999479,16cyclictest20808-21diskstats00:10:161
1129999478,9cyclictest23438-21iostat_ios00:15:211
1129999478,11cyclictest19038-21latency_hist22:59:591
11298994716,4cyclictest9-21ksoftirqd/020:50:190
11298994715,10cyclictest9-21ksoftirqd/023:15:220
11298994715,10cyclictest9-21ksoftirqd/023:15:220
11298994712,7cyclictest9-21ksoftirqd/021:25:240
11298994712,6cyclictest9-21ksoftirqd/023:40:010
11298994712,6cyclictest9-21ksoftirqd/021:10:280
11298994712,4cyclictest9-21ksoftirqd/020:15:010
1130199460,10cyclictest6655-21chrt20:16:033
1130199460,10cyclictest6655-21chrt20:16:033
1130099466,6cyclictest33-21ksoftirqd/219:30:592
1130099463,7cyclictest33-21ksoftirqd/220:15:002
1130099463,6cyclictest33-21ksoftirqd/200:00:212
1130099462,6cyclictest33-21ksoftirqd/221:50:232
1130099462,6cyclictest33-21ksoftirqd/221:15:152
1130099462,6cyclictest33-21ksoftirqd/220:20:132
11298994619,7cyclictest9-21ksoftirqd/022:15:010
11298994619,6cyclictest9-21ksoftirqd/021:45:010
11298994617,3cyclictest9-21ksoftirqd/022:05:140
11298994615,3cyclictest9-21ksoftirqd/021:35:000
11298994612,7cyclictest9-21ksoftirqd/022:00:190
11298994612,6cyclictest9-21ksoftirqd/020:35:000
11298994612,6cyclictest9-21ksoftirqd/019:55:010
11298994612,5cyclictest9-21ksoftirqd/022:30:000
139291450,1ptp4l0-21swapper/300:15:333
1130099454,8cyclictest33-21ksoftirqd/221:20:242
11300994542,2cyclictest311rcuc/200:30:252
1130099453,6cyclictest33-21ksoftirqd/222:25:122
1130099451,6cyclictest33-21ksoftirqd/220:40:222
1130099450,6cyclictest33-21ksoftirqd/222:55:182
1130099450,4cyclictest0-21swapper/222:15:172
11298994515,4cyclictest9-21ksoftirqd/022:30:180
11298994514,4cyclictest9-21ksoftirqd/020:25:180
11298994513,6cyclictest9-21ksoftirqd/023:55:150
11298994513,6cyclictest9-21ksoftirqd/000:25:160
11298994513,4cyclictest9-21ksoftirqd/021:40:010
11298994512,4cyclictest9-21ksoftirqd/023:40:230
11298994512,4cyclictest9-21ksoftirqd/021:45:180
11298994511,6cyclictest9-21ksoftirqd/023:50:190
11298994511,6cyclictest9-21ksoftirqd/020:05:190
11298994511,4cyclictest9-21ksoftirqd/022:15:130
11298994510,6cyclictest9-21ksoftirqd/023:05:200
11298994510,5cyclictest9-21ksoftirqd/000:10:230
1130199440,12cyclictest4248-21taskset22:26:333
1130199440,12cyclictest23259-21hddtemp_smartct19:45:163
1130099447,5cyclictest33-21ksoftirqd/223:20:272
1130099442,6cyclictest33-21ksoftirqd/223:55:222
1130099441,5cyclictest321ktimersoftd/222:05:142
1130099440,5cyclictest33-21ksoftirqd/220:55:192
1130099440,5cyclictest33-21ksoftirqd/200:12:282
1129999447,8cyclictest12192-21df22:45:151
1129899449,9cyclictest9-21ksoftirqd/000:05:290
1129899449,7cyclictest9-21ksoftirqd/000:00:240
1129899449,6cyclictest9-21ksoftirqd/020:35:270
11298994416,7cyclictest9-21ksoftirqd/021:05:000
11298994414,6cyclictest9-21ksoftirqd/023:30:260
11298994414,6cyclictest9-21ksoftirqd/019:10:130
11298994414,4cyclictest9-21ksoftirqd/023:20:270
11298994414,4cyclictest9-21ksoftirqd/000:30:190
11298994414,3cyclictest9-21ksoftirqd/022:40:230
11298994412,6cyclictest9-21ksoftirqd/019:30:220
11298994412,5cyclictest9-21ksoftirqd/022:40:010
11298994411,6cyclictest9-21ksoftirqd/023:45:150
11298994411,6cyclictest9-21ksoftirqd/020:15:240
11298994411,6cyclictest9-21ksoftirqd/020:15:240
11298994410,6cyclictest9-21ksoftirqd/000:15:250
11300994339,2cyclictest311rcuc/223:40:192
1130099432,5cyclictest33-21ksoftirqd/223:08:292
11300994324,10cyclictest33-21ksoftirqd/223:25:192
1130099431,5cyclictest33-21ksoftirqd/219:37:332
1129999439,8cyclictest12635-21iostat_ios20:30:191
1129899439,7cyclictest9-21ksoftirqd/019:40:100
1129899439,6cyclictest9-21ksoftirqd/021:15:170
1129899436,3cyclictest9-21ksoftirqd/021:05:220
1129899435,4cyclictest9-21ksoftirqd/023:15:000
1129899434,3cyclictest9-21ksoftirqd/020:45:230
11298994315,4cyclictest9-21ksoftirqd/019:45:250
11298994314,4cyclictest9-21ksoftirqd/021:55:180
11298994313,4cyclictest9-21ksoftirqd/020:55:160
11298994312,5cyclictest9-21ksoftirqd/023:00:130
11298994312,4cyclictest9-21ksoftirqd/020:00:290
1130199423,19cyclictest0-21swapper/321:17:083
1130199421,11cyclictest224212sleep300:13:323
1130199420,13cyclictest324372sleep320:05:033
1130199420,13cyclictest32098-21taskset22:19:513
1130199420,12cyclictest3852-21df_abs23:35:143
1130199420,12cyclictest210912sleep323:00:583
1130199420,12cyclictest10275-21taskset23:48:133
1130199420,11cyclictest77482sleep323:41:153
1130199420,11cyclictest11624-21taskset20:28:343
1130199420,11cyclictest11602-21chrt22:44:223
1130099423,6cyclictest33-21ksoftirqd/220:15:262
1130099423,6cyclictest33-21ksoftirqd/220:15:262
1129899426,8cyclictest9-21ksoftirqd/020:00:010
11298994237,2cyclictest9-21ksoftirqd/019:20:000
11298994216,7cyclictest9-21ksoftirqd/022:20:170
139291410,0ptp4l401ktimersoftd/322:21:363
1130199412,18cyclictest0-21swapper/323:23:203
1130199410,39cyclictest140632sleep320:33:483
1130199410,12cyclictest22112-21taskset21:56:193
1130199410,12cyclictest13425-21taskset19:14:043
1130199410,11cyclictest25883-21chrt20:58:233
1130199410,11cyclictest19830-21taskset19:36:283
1130199410,11cyclictest17666-21chrt21:49:543
1130099415,8cyclictest33-21ksoftirqd/223:30:262
11300994138,2cyclictest311rcuc/220:25:262
11300994111,4cyclictest33-21ksoftirqd/219:26:262
1129999418,8cyclictest5500-21iostat20:15:181
1129999418,8cyclictest5500-21iostat20:15:181
1129999417,9cyclictest23413-21users23:05:281
11298994110,4cyclictest9-21ksoftirqd/020:40:150
1130199400,9cyclictest32653-21df_abs00:35:163
1130199400,12cyclictest11399-21chrt21:35:183
1130199400,11cyclictest186772chrt20:42:073
139291390,0ptp4l401ktimersoftd/300:07:293
1130199390,19cyclictest31913-21taskset20:01:223
1130199390,11cyclictest7739-21taskset21:27:483
1130199390,11cyclictest632-21taskset23:27:213
11300993936,2cyclictest311rcuc/221:35:242
11298993935,3cyclictest9-21ksoftirqd/019:30:000
1129899390,2cyclictest121rcu_preempt20:20:190
11301993832,4cyclictest41-21ksoftirqd/322:55:563
1130199380,9cyclictest0-21swapper/322:03:193
1130199380,15cyclictest27191-21seq00:23:403
1130099382,6cyclictest33-21ksoftirqd/219:17:262
1129899384,4cyclictest9-21ksoftirqd/022:45:140
11301993732,3cyclictest41-21ksoftirqd/322:11:443
11301993731,4cyclictest41-21ksoftirqd/319:59:383
1130199370,18cyclictest16455-21chrt20:39:093
1130199370,15cyclictest12843-21runrttasks23:55:003
1130199370,15cyclictest10307-21runrttasks21:32:383
1130199370,11cyclictest5273-21seq21:21:353
1130099370,7cyclictest33-21ksoftirqd/223:14:412
1130099370,6cyclictest0-21swapper/222:35:212
11301993630,4cyclictest41-21ksoftirqd/322:35:113
11301993530,3cyclictest41-21ksoftirqd/319:16:263
11301993530,3cyclictest41-21ksoftirqd/300:30:003
11301993428,4cyclictest41-21ksoftirqd/321:03:163
11301993428,3cyclictest41-21ksoftirqd/319:40:263
11300993429,3cyclictest33-21ksoftirqd/222:50:432
11299993126,3cyclictest25-21ksoftirqd/119:37:241
11299993025,3cyclictest25-21ksoftirqd/119:20:001
11301992824,2cyclictest139291ptp4l20:20:073
11299992721,4cyclictest25-21ksoftirqd/119:28:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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