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2026-07-31 - 20:55
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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 all highest latencies:
System rackdslot2.osadl.org (updated Fri Jul 31, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
180262236168,23sleep30-21swapper/307:09:413
177122205171,23sleep20-21swapper/207:05:422
177272204171,22sleep10-21swapper/107:05:531
177412202169,22sleep00-21swapper/007:06:040
199621400,1sleep20-21swapper/208:50:002
139291790,1ptp4l391rcuc/309:15:133
18347996913,10cyclictest17172-21latency_hist08:15:003
18347996611,10cyclictest3022-21cut08:50:193
18347996611,10cyclictest22486-21latency_hist10:40:013
18347996611,10cyclictest10143-21unixbench_singl10:10:273
1834799659,16cyclictest0-21swapper/312:05:143
1834799659,11cyclictest0-21swapper/309:30:293
1834799659,11cyclictest0-21swapper/309:25:143
18347996515,10cyclictest21881-21latency_hist08:25:003
18347996514,10cyclictest4714-21expr08:55:143
18347996512,18cyclictest23242-21cpuspeed07:20:133
18347996511,12cyclictest24374-21sed11:50:183
18347996511,10cyclictest6473-21irqrtprio12:20:163
18347996511,10cyclictest15112-21latency_hist12:40:003
1834799649,16cyclictest0-21swapper/307:45:213
1834799648,15cyclictest0-21swapper/309:00:143
18347996414,10cyclictest32705-21fschecks_time11:00:173
18347996414,10cyclictest29323-21basename07:30:263
18347996412,10cyclictest24916-21grep08:30:143
18347996411,9cyclictest31460-21timerwakeupswit10:55:283
18347996411,9cyclictest28910-21cstates09:45:143
18347996410,12cyclictest24867-21sed09:35:213
18345996430,6cyclictest25-21ksoftirqd/107:10:171
18345996427,7cyclictest25-21ksoftirqd/107:45:161
18347996315,9cyclictest19957-21expr07:10:283
18347996314,10cyclictest8058-21cut07:55:163
18347996313,9cyclictest17701-21grep11:35:233
18347996313,10cyclictest4902-21expr11:10:153
18347996313,10cyclictest4902-21expr11:10:153
18347996311,10cyclictest15339-21phc2sys-jitter11:30:223
18347996310,13cyclictest10126-21sed11:20:203
18345996320,8cyclictest25-21ksoftirqd/108:55:251
18345996320,7cyclictest25-21ksoftirqd/108:20:291
18347996214,9cyclictest6105-21missed_timers07:50:253
18347996213,9cyclictest13455-21awk11:25:273
18347996211,11cyclictest23121-21sed08:25:193
18347996211,10cyclictest4802-21ptp4l-jitter10:00:253
18347996211,10cyclictest21402-21irqrtprio07:15:193
18347996211,10cyclictest12796-21sh08:05:173
18347996211,10cyclictest11182-21irqrtprio12:30:193
18344996227,4cyclictest9-21ksoftirqd/012:20:140
18344996221,4cyclictest9-21ksoftirqd/011:40:270
18347996114,9cyclictest8462-21df_abs12:25:153
18347996114,10cyclictest6740-21irqrtprio10:05:183
18347996114,10cyclictest1231-21cat08:45:283
18347996113,10cyclictest12047-21expr09:10:143
18347996112,10cyclictest17966-21cpu10:30:133
18347996111,9cyclictest1898-21timerwakeupswit07:40:283
1834799609,16cyclictest0-21swapper/309:05:263
18347996013,9cyclictest27476-21df_abs08:35:153
18347996013,9cyclictest2555-21switchtime09:55:273
18347996013,9cyclictest2555-21switchtime09:55:273
18345996026,4cyclictest25-21ksoftirqd/112:35:241
18345996026,4cyclictest25-21ksoftirqd/109:15:261
18344996022,8cyclictest9-21ksoftirqd/010:20:150
42182590,8sleep1241ktimersoftd/112:15:181
18347995911,9cyclictest217-21systemd-journal10:42:353
18347995911,11cyclictest11713-21sed10:15:193
18344995921,3cyclictest9-21ksoftirqd/008:55:250
36532580,2sleep00-21swapper/012:15:140
18347995814,10cyclictest30551-21cat07:35:143
18347995812,16cyclictest29769-21cat10:54:593
18347995812,10cyclictest13348-21grep10:20:143
18347995811,17cyclictest22154-21sed11:45:183
18347995811,12cyclictest27193-21irqrtprio09:40:183
18347995811,12cyclictest2415-21expr11:05:143
18347995811,11cyclictest4094-21cut12:15:183
18345995814,8cyclictest25-21ksoftirqd/112:05:201
18344995830,9cyclictest9-21ksoftirqd/011:15:160
18344995828,8cyclictest9-21ksoftirqd/012:05:210
18344995826,7cyclictest9-21ksoftirqd/010:55:160
18344995822,9cyclictest9-21ksoftirqd/010:10:240
18347995713,7cyclictest32100-21meminfo09:50:213
18347995712,11cyclictest25761-21ls07:25:143
18347995711,17cyclictest9203-21sed11:20:013
18347995711,17cyclictest3311-21cat12:15:003
18345995724,8cyclictest25-21ksoftirqd/107:20:231
18345995716,6cyclictest25-21ksoftirqd/112:30:231
18345995715,5cyclictest25-21ksoftirqd/109:36:591
1834499577,7cyclictest9-21ksoftirqd/010:40:240
18344995725,5cyclictest9-21ksoftirqd/007:55:150
18344995719,8cyclictest9-21ksoftirqd/010:45:100
18344995718,10cyclictest9-21ksoftirqd/011:05:140
203642560,1sleep20-21swapper/211:40:292
18347995612,10cyclictest26460-21ls11:55:123
18345995616,7cyclictest25-21ksoftirqd/107:32:011
18344995621,3cyclictest9-21ksoftirqd/009:35:010
1834799558,10cyclictest0-21swapper/312:00:233
18347995514,9cyclictest25755-21iostat10:45:183
18347995511,16cyclictest18925-21sed08:15:273
18347995510,11cyclictest17579-21latency09:20:223
18345995525,5cyclictest25-21ksoftirqd/109:05:171
18345995519,7cyclictest25-21ksoftirqd/109:30:251
18345995514,5cyclictest25-21ksoftirqd/111:30:231
18344995529,8cyclictest9-21ksoftirqd/009:05:250
18344995520,3cyclictest9-21ksoftirqd/009:15:170
18345995414,5cyclictest25-21ksoftirqd/107:25:581
1834499544,11cyclictest9-21ksoftirqd/008:10:210
18344995422,10cyclictest9-21ksoftirqd/008:30:260
18344995421,8cyclictest9-21ksoftirqd/009:25:270
18347995313,7cyclictest19272-21diskstats11:40:203
18347995311,11cyclictest16240-21sed10:25:193
18347995311,11cyclictest16240-21sed10:25:183
18345995315,6cyclictest25-21ksoftirqd/107:51:581
18345995314,5cyclictest25-21ksoftirqd/111:27:591
18345995313,5cyclictest25-21ksoftirqd/111:57:581
1834499536,8cyclictest9-21ksoftirqd/010:00:250
1834499534,7cyclictest9-21ksoftirqd/008:00:130
1834799529,9cyclictest0-21swapper/308:00:173
1834799529,11cyclictest29768-21expr08:40:143
18345995229,8cyclictest25-21ksoftirqd/111:05:201
18345995222,7cyclictest25-21ksoftirqd/108:45:261
18345995221,6cyclictest25-21ksoftirqd/110:00:181
18345995217,6cyclictest25-21ksoftirqd/107:40:241
18345995217,5cyclictest25-21ksoftirqd/109:12:161
1834499522,6cyclictest9-21ksoftirqd/011:25:240
18346995129,15cyclictest33-21ksoftirqd/209:05:222
18345995120,6cyclictest25-21ksoftirqd/108:00:131
18345995117,6cyclictest25-21ksoftirqd/112:28:571
18345995111,8cyclictest25-21ksoftirqd/111:41:591
1834499516,8cyclictest9-21ksoftirqd/011:10:160
1834499516,8cyclictest9-21ksoftirqd/011:10:160
1834499514,3cyclictest9-21ksoftirqd/010:50:150
1834499512,6cyclictest9-21ksoftirqd/011:55:160
1834499512,6cyclictest9-21ksoftirqd/008:45:190
1834499510,8cyclictest9-21ksoftirqd/010:20:000
1834599503,6cyclictest231rcuc/111:00:201
18345995027,3cyclictest25-21ksoftirqd/111:45:191
18344995021,3cyclictest9-21ksoftirqd/007:45:210
1834499500,2cyclictest121rcu_preempt11:20:160
1834599499,3cyclictest25-21ksoftirqd/109:59:431
1834599499,3cyclictest25-21ksoftirqd/109:59:431
1834499497,2cyclictest9-21ksoftirqd/007:30:220
1834499495,3cyclictest9-21ksoftirqd/012:10:220
1834499494,8cyclictest9-21ksoftirqd/010:30:170
1834499493,9cyclictest9-21ksoftirqd/008:35:210
18344994929,8cyclictest9-21ksoftirqd/008:55:000
1834499490,8cyclictest9-21ksoftirqd/010:35:150
1834699480,3cyclictest33-21ksoftirqd/211:20:012
1834499488,3cyclictest9-21ksoftirqd/007:40:150
1834499486,3cyclictest9-21ksoftirqd/012:35:200
1834499486,3cyclictest9-21ksoftirqd/009:24:290
1834499485,7cyclictest9-21ksoftirqd/011:45:140
1834499484,3cyclictest9-21ksoftirqd/007:35:280
1834499484,10cyclictest9-21ksoftirqd/010:25:160
1834499484,10cyclictest9-21ksoftirqd/010:25:160
1834499483,8cyclictest9-21ksoftirqd/009:45:000
1834499482,5cyclictest9-21ksoftirqd/009:55:130
1834499482,5cyclictest9-21ksoftirqd/009:55:130
1834499482,5cyclictest9-21ksoftirqd/007:50:160
1834499481,5cyclictest9-21ksoftirqd/007:25:280
18346994741,4cyclictest29258-21turbostat08:40:012
18345994715,6cyclictest25-21ksoftirqd/109:45:271
18345994713,7cyclictest25-21ksoftirqd/108:40:201
1834499476,3cyclictest9-21ksoftirqd/009:00:210
1834499474,9cyclictest9-21ksoftirqd/008:15:000
1834499474,9cyclictest9-21ksoftirqd/007:20:260
18344994730,7cyclictest9-21ksoftirqd/011:05:010
18344994729,8cyclictest9-21ksoftirqd/008:05:220
1834499472,6cyclictest9-21ksoftirqd/012:30:140
1834499471,6cyclictest9-21ksoftirqd/012:00:160
1834499471,6cyclictest9-21ksoftirqd/011:35:000
1834499470,2cyclictest121rcu_preempt08:25:000
18345994622,3cyclictest25-21ksoftirqd/107:35:221
1834499468,3cyclictest9-21ksoftirqd/007:10:280
1834499466,8cyclictest9-21ksoftirqd/010:05:130
1834499463,9cyclictest9-21ksoftirqd/011:50:270
18344994630,5cyclictest9-21ksoftirqd/009:50:140
1834499461,5cyclictest9-21ksoftirqd/008:40:140
1834499461,4cyclictest9-21ksoftirqd/009:10:280
1834499461,2cyclictest121rcu_preempt12:30:010
18346994538,4cyclictest22928-21wc07:20:002
18345994524,7cyclictest25-21ksoftirqd/108:50:231
18345994519,7cyclictest25-21ksoftirqd/109:50:121
18345994515,7cyclictest25-21ksoftirqd/108:05:171
18345994515,6cyclictest25-21ksoftirqd/108:30:281
18344994528,8cyclictest9-21ksoftirqd/008:25:230
1834499452,6cyclictest9-21ksoftirqd/011:35:220
1834499451,8cyclictest9-21ksoftirqd/007:15:140
18346994432,11cyclictest33-21ksoftirqd/210:20:002
18346994424,17cyclictest6596-21cron09:00:002
18345994422,5cyclictest25-21ksoftirqd/111:10:251
18345994422,5cyclictest25-21ksoftirqd/111:10:251
1834599441,7cyclictest22230-21apt-key08:25:011
1834599440,8cyclictest241ktimersoftd/112:00:241
1834599440,6cyclictest7952-21df_abs07:55:151
18344994428,4cyclictest9-21ksoftirqd/009:35:260
1834699435,8cyclictest33-21ksoftirqd/210:05:012
1834699435,6cyclictest33-21ksoftirqd/212:00:012
1834699433,13cyclictest121rcu_preempt11:30:152
1834599432,6cyclictest25-21ksoftirqd/107:17:461
1834599432,6cyclictest10874-21sed11:20:261
1834599430,6cyclictest241ktimersoftd/111:35:141
1834499434,9cyclictest9-21ksoftirqd/009:45:260
1834699425,7cyclictest33-21ksoftirqd/207:35:012
1834699423,8cyclictest33-21ksoftirqd/207:55:002
18346994237,3cyclictest33-21ksoftirqd/209:40:012
1834699422,3cyclictest33-21ksoftirqd/212:35:182
18346994211,5cyclictest33-21ksoftirqd/208:40:202
1834599422,5cyclictest7527-21/usr/sbin/munin12:20:241
18346994137,2cyclictest33-21ksoftirqd/209:35:012
18346994136,3cyclictest33-21ksoftirqd/210:40:012
18346994136,3cyclictest33-21ksoftirqd/207:15:012
18346994135,3cyclictest33-21ksoftirqd/211:39:592
18345994138,2cyclictest231rcuc/110:59:411
1834599413,7cyclictest2471-21sed12:10:251
18345994121,7cyclictest25-21ksoftirqd/109:20:291
1834699404,7cyclictest33-21ksoftirqd/207:40:142
18346994035,3cyclictest33-21ksoftirqd/211:05:002
18346994035,3cyclictest33-21ksoftirqd/210:50:192
18346994034,3cyclictest33-21ksoftirqd/207:40:022
18346994033,3cyclictest33-21ksoftirqd/208:25:002
1834599402,6cyclictest0-21swapper/109:00:001
18345994021,7cyclictest25-21ksoftirqd/109:40:161
1834599400,5cyclictest241ktimersoftd/108:36:101
1834699398,4cyclictest33-21ksoftirqd/209:50:172
1834699396,4cyclictest33-21ksoftirqd/207:25:282
1834699396,10cyclictest33-21ksoftirqd/212:30:262
1834699393,6cyclictest33-21ksoftirqd/210:55:292
18346993936,2cyclictest33-21ksoftirqd/210:35:012
18346993935,3cyclictest33-21ksoftirqd/211:55:012
18346993935,2cyclictest33-21ksoftirqd/207:55:162
1834699393,4cyclictest33-21ksoftirqd/208:05:012
18346993934,3cyclictest33-21ksoftirqd/208:10:012
18346993934,3cyclictest33-21ksoftirqd/207:50:002
1834699393,10cyclictest33-21ksoftirqd/209:55:282
1834699393,10cyclictest33-21ksoftirqd/209:55:272
18345993910,6cyclictest25-21ksoftirqd/111:53:481
1834599390,6cyclictest241ktimersoftd/109:28:281
1834699385,3cyclictest33-21ksoftirqd/212:00:132
1834699384,6cyclictest121rcu_preempt09:10:192
1834699384,3cyclictest33-21ksoftirqd/211:05:142
1834699384,10cyclictest33-21ksoftirqd/209:00:172
18346993834,2cyclictest33-21ksoftirqd/211:25:132
18346993833,3cyclictest33-21ksoftirqd/212:25:012
18346993833,3cyclictest33-21ksoftirqd/208:35:002
18346993833,3cyclictest33-21ksoftirqd/207:20:192
18346993833,2cyclictest33-21ksoftirqd/212:10:132
18346993832,3cyclictest33-21ksoftirqd/210:05:192
18346993831,4cyclictest33-21ksoftirqd/211:49:492
1834599386,7cyclictest25-21ksoftirqd/110:19:141
1834599384,5cyclictest25-21ksoftirqd/110:31:211
1834599381,15cyclictest19644-21sed08:20:001
1834599380,6cyclictest241ktimersoftd/111:18:091
1834699377,3cyclictest33-21ksoftirqd/208:15:212
1834699376,3cyclictest33-21ksoftirqd/210:40:182
1834699375,3cyclictest33-21ksoftirqd/210:10:212
1834699373,6cyclictest33-21ksoftirqd/209:15:222
18346993732,3cyclictest33-21ksoftirqd/212:15:192
18346993732,3cyclictest33-21ksoftirqd/209:45:192
18346993732,3cyclictest33-21ksoftirqd/209:20:142
18346993731,4cyclictest33-21ksoftirqd/209:25:352
18346993731,3cyclictest33-21ksoftirqd/212:25:152
18346993731,3cyclictest33-21ksoftirqd/212:09:592
18346993731,3cyclictest33-21ksoftirqd/210:20:192
18346993731,3cyclictest33-21ksoftirqd/208:10:172
1834699371,8cyclictest33-21ksoftirqd/210:25:272
1834699371,8cyclictest33-21ksoftirqd/210:25:272
1834599377,8cyclictest25-21ksoftirqd/108:10:281
18345993734,2cyclictest231rcuc/110:35:171
1834699366,3cyclictest33-21ksoftirqd/211:15:012
1834699366,3cyclictest33-21ksoftirqd/211:15:012
1834699366,2cyclictest33-21ksoftirqd/210:45:152
1834699363,2cyclictest33-21ksoftirqd/208:25:172
18346993630,3cyclictest33-21ksoftirqd/209:44:592
18345993630,4cyclictest25-21ksoftirqd/110:13:441
18346993529,4cyclictest33-21ksoftirqd/211:22:412
1834699351,2cyclictest121rcu_preempt08:50:222
18345993531,2cyclictest231rcuc/110:22:151
18345993530,3cyclictest25-21ksoftirqd/110:50:141
18345993529,4cyclictest25-21ksoftirqd/110:28:401
18345993529,4cyclictest25-21ksoftirqd/110:28:401
18345993227,3cyclictest25-21ksoftirqd/110:44:461
1834599307,6cyclictest25-21ksoftirqd/110:45:131
18345992822,4cyclictest25-21ksoftirqd/110:07:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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