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2026-05-12 - 18:22
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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 rackdslot3.osadl.org (updated Tue May 12, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
66842199164,23sleep30-21swapper/307:09:443
66842199164,23sleep30-21swapper/307:09:443
65752199166,22sleep10-21swapper/107:08:261
65752199166,22sleep10-21swapper/107:08:261
63912192159,22sleep20-21swapper/207:06:012
63912192159,22sleep20-21swapper/207:06:012
65442182149,22sleep00-21swapper/007:08:000
65442182149,22sleep00-21swapper/007:08:000
3134121560,7sleep1699999cyclictest12:30:171
7000997028,4cyclictest33-21ksoftirqd/211:55:222
7000996826,10cyclictest33-21ksoftirqd/210:55:262
7000996631,4cyclictest33-21ksoftirqd/210:40:002
7000996623,4cyclictest33-21ksoftirqd/208:45:182
7000996530,9cyclictest33-21ksoftirqd/207:15:002
7000996530,6cyclictest33-21ksoftirqd/209:10:002
7000996527,11cyclictest33-21ksoftirqd/210:00:012
7000996426,4cyclictest33-21ksoftirqd/208:00:152
7000996417,8cyclictest33-21ksoftirqd/211:50:252
7000996321,4cyclictest33-21ksoftirqd/212:15:192
6998996329,9cyclictest9-21ksoftirqd/011:45:200
7000996228,5cyclictest33-21ksoftirqd/209:20:192
7000996227,4cyclictest33-21ksoftirqd/209:30:202
7000996224,5cyclictest33-21ksoftirqd/208:45:002
7000996219,5cyclictest33-21ksoftirqd/208:35:272
7000996219,4cyclictest33-21ksoftirqd/208:30:132
6998996228,5cyclictest9-21ksoftirqd/008:00:200
6998996226,3cyclictest9-21ksoftirqd/008:10:180
6998996224,4cyclictest9-21ksoftirqd/007:10:230
7000996128,6cyclictest33-21ksoftirqd/209:25:142
7000996126,11cyclictest33-21ksoftirqd/207:55:232
7000996125,5cyclictest33-21ksoftirqd/209:15:012
7000996118,4cyclictest33-21ksoftirqd/209:40:152
7000996118,4cyclictest33-21ksoftirqd/207:20:262
7000996117,4cyclictest33-21ksoftirqd/212:25:262
7000996117,4cyclictest33-21ksoftirqd/210:20:262
6998996129,6cyclictest9-21ksoftirqd/010:40:010
6998996128,5cyclictest9-21ksoftirqd/011:10:000
6998996125,4cyclictest9-21ksoftirqd/007:40:150
6998996123,8cyclictest9-21ksoftirqd/007:35:240
7000996026,4cyclictest33-21ksoftirqd/211:25:142
7000996023,4cyclictest33-21ksoftirqd/210:00:002
7000996015,9cyclictest33-21ksoftirqd/209:00:262
7000996015,8cyclictest33-21ksoftirqd/211:20:182
7000996015,8cyclictest33-21ksoftirqd/211:20:182
6998996026,5cyclictest9-21ksoftirqd/012:35:220
7000995925,4cyclictest33-21ksoftirqd/209:50:182
7000995917,4cyclictest33-21ksoftirqd/212:20:132
6998995928,8cyclictest9-21ksoftirqd/012:00:290
6998995928,3cyclictest9-21ksoftirqd/009:40:010
6998995927,6cyclictest9-21ksoftirqd/009:25:140
6998995925,4cyclictest9-21ksoftirqd/010:30:210
6998995925,4cyclictest9-21ksoftirqd/007:45:220
6998995924,8cyclictest9-21ksoftirqd/010:55:270
7000995825,5cyclictest33-21ksoftirqd/208:10:182
7000995823,5cyclictest33-21ksoftirqd/211:40:152
7000995823,10cyclictest33-21ksoftirqd/211:03:542
7000995820,9cyclictest33-21ksoftirqd/209:35:232
7000995813,4cyclictest33-21ksoftirqd/210:40:182
6998995829,9cyclictest9-21ksoftirqd/012:30:140
6998995827,8cyclictest9-21ksoftirqd/011:30:130
6998995826,4cyclictest9-21ksoftirqd/008:40:210
6998995824,4cyclictest9-21ksoftirqd/011:20:140
6998995824,4cyclictest9-21ksoftirqd/011:20:140
7000995723,8cyclictest33-21ksoftirqd/210:30:172
7000995723,4cyclictest33-21ksoftirqd/212:30:132
7000995722,5cyclictest33-21ksoftirqd/207:45:182
7000995718,10cyclictest33-21ksoftirqd/211:15:132
7000995716,4cyclictest33-21ksoftirqd/211:30:182
7000995711,9cyclictest33-21ksoftirqd/208:25:172
6998995727,4cyclictest9-21ksoftirqd/008:30:000
7000995619,5cyclictest33-21ksoftirqd/207:15:132
7000995616,4cyclictest33-21ksoftirqd/211:35:162
7000995612,10cyclictest33-21ksoftirqd/212:00:212
699999561,12cyclictest23417-21readlink10:00:001
6998995627,3cyclictest9-21ksoftirqd/007:25:160
7001995528,4cyclictest41-21ksoftirqd/311:50:013
7001995525,3cyclictest41-21ksoftirqd/309:45:133
7000995517,10cyclictest33-21ksoftirqd/207:40:012
7000995516,5cyclictest33-21ksoftirqd/211:45:152
7000995513,10cyclictest33-21ksoftirqd/207:30:002
7000995511,9cyclictest33-21ksoftirqd/210:15:162
7000995511,9cyclictest33-21ksoftirqd/207:50:202
6999995513,3cyclictest25-21ksoftirqd/109:27:581
7000995422,8cyclictest33-21ksoftirqd/208:50:222
7000995421,12cyclictest33-21ksoftirqd/210:45:132
7000995420,5cyclictest33-21ksoftirqd/209:00:002
7000995420,5cyclictest33-21ksoftirqd/208:08:592
7000995419,5cyclictest33-21ksoftirqd/211:05:222
7000995418,9cyclictest33-21ksoftirqd/211:10:132
7000995414,4cyclictest33-21ksoftirqd/209:15:072
6998995423,4cyclictest9-21ksoftirqd/010:10:010
6998995423,4cyclictest9-21ksoftirqd/010:10:010
6998995423,4cyclictest9-21ksoftirqd/008:10:010
7000995318,9cyclictest33-21ksoftirqd/210:25:152
7000995311,9cyclictest33-21ksoftirqd/210:55:012
699999535,5cyclictest18602-21awk09:50:011
699999534,19cyclictest25386-21awk10:00:291
699899534,8cyclictest9-21ksoftirqd/011:55:220
699899530,8cyclictest101ktimersoftd/009:40:260
7001995218,9cyclictest41-21ksoftirqd/307:55:003
7001995210,4cyclictest41-21ksoftirqd/307:59:593
699999527,7cyclictest10322-21proc_pri11:45:231
699899527,10cyclictest9-21ksoftirqd/012:20:000
699899523,6cyclictest9-21ksoftirqd/012:09:590
7001995118,6cyclictest41-21ksoftirqd/311:00:293
700099518,10cyclictest33-21ksoftirqd/210:05:262
700099518,10cyclictest33-21ksoftirqd/210:05:262
700099516,3cyclictest33-21ksoftirqd/212:10:182
7000995117,9cyclictest33-21ksoftirqd/210:10:172
7000995114,10cyclictest33-21ksoftirqd/207:40:182
7000995112,8cyclictest33-21ksoftirqd/208:20:182
699999518,7cyclictest9867-21sed09:30:181
699999516,6cyclictest7210-21tune2fs11:40:161
6999995110,5cyclictest25-21ksoftirqd/112:00:231
7001995012,10cyclictest41-21ksoftirqd/309:30:143
700099506,4cyclictest33-21ksoftirqd/212:05:232
699999501,12cyclictest6464-21sed08:15:191
699899504,9cyclictest9-21ksoftirqd/010:15:190
699899504,8cyclictest9-21ksoftirqd/008:50:120
699899503,8cyclictest9-21ksoftirqd/010:10:160
699899503,6cyclictest9-21ksoftirqd/011:00:220
6998995019,7cyclictest9-21ksoftirqd/010:55:010
699899501,7cyclictest9-21ksoftirqd/010:00:210
699899501,6cyclictest9-21ksoftirqd/010:00:000
699899501,11cyclictest9-21ksoftirqd/009:15:260
7001994915,3cyclictest41-21ksoftirqd/308:15:143
7000994934,3cyclictest33-21ksoftirqd/212:35:232
699899495,4cyclictest9-21ksoftirqd/009:00:280
699899494,9cyclictest9-21ksoftirqd/009:05:100
699899493,6cyclictest9-21ksoftirqd/010:45:010
699899492,8cyclictest9-21ksoftirqd/012:20:220
699899492,5cyclictest9-21ksoftirqd/007:30:250
699899491,9cyclictest9-21ksoftirqd/009:20:170
6998994919,9cyclictest9-21ksoftirqd/008:55:160
7001994816,4cyclictest41-21ksoftirqd/312:15:243
7001994814,6cyclictest41-21ksoftirqd/309:10:323
699999488,7cyclictest20805-21ls11:00:231
699999480,46cyclictest0-21swapper/109:20:221
699899483,8cyclictest9-21ksoftirqd/009:50:120
699899483,8cyclictest9-21ksoftirqd/008:35:130
699899481,8cyclictest9-21ksoftirqd/009:50:000
699899481,6cyclictest9-21ksoftirqd/010:45:230
699899481,10cyclictest9-21ksoftirqd/007:50:160
7001994716,4cyclictest41-21ksoftirqd/308:55:143
7001994715,6cyclictest41-21ksoftirqd/309:50:203
700099476,2cyclictest33-21ksoftirqd/208:15:182
7000994726,9cyclictest33-21ksoftirqd/209:45:162
699999476,7cyclictest29705-21grep12:25:231
699999476,6cyclictest27964-21irqrtprio11:15:191
699999470,11cyclictest24509-21sed07:45:201
699899474,5cyclictest9-21ksoftirqd/007:20:190
699899473,2cyclictest121rcu_preempt08:35:000
699899471,6cyclictest9-21ksoftirqd/007:55:130
699899470,7cyclictest9-21ksoftirqd/010:24:590
699899470,6cyclictest9-21ksoftirqd/009:10:210
700199465,3cyclictest6060-21sshd10:30:173
7001994616,6cyclictest41-21ksoftirqd/311:40:263
7001994614,6cyclictest41-21ksoftirqd/307:24:593
7001994612,5cyclictest41-21ksoftirqd/311:20:283
7001994612,5cyclictest41-21ksoftirqd/311:20:283
7000994633,2cyclictest33-21ksoftirqd/207:30:282
699999466,7cyclictest27339-21mailstats12:20:231
699999466,6cyclictest1359-21cut12:35:191
699999465,6cyclictest26120-21wc10:05:151
699999465,6cyclictest26120-21wc10:05:141
699999462,17cyclictest14949-21cut09:40:191
699999461,11cyclictest21391-21/usr/sbin/munin08:45:251
699999460,44cyclictest0-21swapper/110:25:241
699899463,9cyclictest9-21ksoftirqd/011:35:260
699899463,6cyclictest9-21ksoftirqd/010:25:250
699899463,5cyclictest9-21ksoftirqd/011:40:150
699899462,8cyclictest9-21ksoftirqd/011:10:170
699899462,6cyclictest9-21ksoftirqd/008:45:260
699899462,6cyclictest9-21ksoftirqd/007:15:180
699899462,5cyclictest9-21ksoftirqd/011:15:230
700199453,2cyclictest31346-21ps12:30:173
700199453,2cyclictest121rcu_preempt09:05:013
7001994517,3cyclictest41-21ksoftirqd/308:35:003
7001994516,4cyclictest41-21ksoftirqd/312:10:193
7001994510,6cyclictest41-21ksoftirqd/309:35:173
7001994510,11cyclictest41-21ksoftirqd/308:05:233
700199450,2cyclictest121rcu_preempt07:20:013
699999457,7cyclictest8715-21unixbench_singl07:10:281
699999457,7cyclictest16498-21sensors08:35:231
699999456,7cyclictest29794-21systemctl07:55:221
699999456,7cyclictest15111-21sed11:55:231
699999456,6cyclictest26049-21ssh11:10:261
699999456,5cyclictest22123-21/usr/sbin/munin12:10:191
699899456,9cyclictest9-21ksoftirqd/008:20:240
699899454,8cyclictest9-21ksoftirqd/011:50:170
699999447,6cyclictest1034-21expr08:05:131
699999446,5cyclictest31877-21cat11:25:011
699999441,16cyclictest17953-21awk07:30:271
699899449,3cyclictest121rcu_preempt08:15:200
699899443,6cyclictest9-21ksoftirqd/012:25:140
699899442,8cyclictest9-21ksoftirqd/012:10:180
699899440,5cyclictest9-21ksoftirqd/011:25:270
700199433,6cyclictest121rcu_preempt10:05:243
700199433,6cyclictest121rcu_preempt10:05:233
7001994330,4cyclictest41-21ksoftirqd/310:30:003
7001994329,4cyclictest41-21ksoftirqd/312:00:003
7001994313,7cyclictest41-21ksoftirqd/307:30:163
7001994311,6cyclictest41-21ksoftirqd/308:10:233
699999437,2cyclictest0-21swapper/109:05:131
699999436,8cyclictest29553-21awk10:10:241
699999432,5cyclictest0-21swapper/109:00:181
6999994310,6cyclictest25-21ksoftirqd/107:25:201
699899434,9cyclictest9-21ksoftirqd/009:30:280
139391430,0ptp4l401ktimersoftd/311:39:583
139391430,0ptp4l401ktimersoftd/311:10:423
700199427,7cyclictest41-21ksoftirqd/309:25:183
700199427,2cyclictest121rcu_preempt10:20:263
700199424,5cyclictest121rcu_preempt10:15:183
700199424,3cyclictest41-21ksoftirqd/307:10:283
7001994232,3cyclictest41-21ksoftirqd/307:30:003
7001994230,3cyclictest41-21ksoftirqd/308:20:263
700199422,9cyclictest41-21ksoftirqd/309:20:233
700199422,2cyclictest121rcu_preempt08:40:133
699999427,7cyclictest12179-21/usr/sbin/munin09:35:171
699999426,7cyclictest25-21ksoftirqd/110:45:181
699999424,6cyclictest22549-21/usr/sbin/munin08:50:151
699999423,7cyclictest19285-21entropy07:35:161
6999994212,3cyclictest25-21ksoftirqd/110:52:481
699999420,11cyclictest17932-21fschecks_time08:40:151
139391420,0ptp4l401ktimersoftd/308:39:513
700199419,4cyclictest41-21ksoftirqd/310:04:593
700199414,10cyclictest41-21ksoftirqd/312:20:243
7001994137,2cyclictest41-21ksoftirqd/311:20:003
7001994136,3cyclictest41-21ksoftirqd/308:30:003
7001994129,3cyclictest41-21ksoftirqd/308:45:163
700199410,2cyclictest121rcu_preempt10:40:233
699999417,6cyclictest25-21ksoftirqd/107:15:211
699999416,7cyclictest19177-21/usr/sbin/munin12:05:181
700199405,3cyclictest41-21ksoftirqd/309:55:173
7001994026,3cyclictest41-21ksoftirqd/309:05:163
700199400,5cyclictest121rcu_preempt07:45:003
700199400,2cyclictest121rcu_preempt11:50:003
699999406,7cyclictest25-21ksoftirqd/111:35:131
699999406,5cyclictest25-21ksoftirqd/107:20:241
699999404,6cyclictest6176-21irqrtprio10:30:191
699999403,7cyclictest21982-21iostat_ios07:40:191
699999400,11cyclictest9719-21chrt10:36:201
139391400,0ptp4l401ktimersoftd/312:00:293
700199399,4cyclictest41-21ksoftirqd/311:05:283
700199398,4cyclictest41-21ksoftirqd/309:15:153
700199396,4cyclictest41-21ksoftirqd/311:30:013
700199395,3cyclictest41-21ksoftirqd/308:54:573
7001993934,3cyclictest41-21ksoftirqd/309:45:013
700199392,5cyclictest121rcu_preempt10:50:243
700199392,4cyclictest41-21ksoftirqd/307:45:153
7001993924,4cyclictest41-21ksoftirqd/310:55:243
699999396,6cyclictest10274-21/usr/sbin/munin10:40:111
699999393,10cyclictest19971-21netstat09:50:221
700199385,3cyclictest41-21ksoftirqd/311:30:153
7001993825,3cyclictest41-21ksoftirqd/308:00:243
700199380,2cyclictest121rcu_preempt12:39:593
700199380,2cyclictest121rcu_preempt12:25:223
699999386,6cyclictest25-21ksoftirqd/109:15:151
7001993733,2cyclictest41-21ksoftirqd/312:10:003
7001993731,4cyclictest41-21ksoftirqd/310:36:223
7001993725,3cyclictest41-21ksoftirqd/310:10:273
7001993724,3cyclictest41-21ksoftirqd/310:45:173
7001993724,3cyclictest41-21ksoftirqd/307:40:003
699999376,6cyclictest25-21ksoftirqd/108:10:191
699999376,5cyclictest25-21ksoftirqd/108:00:191
6999993711,7cyclictest25-21ksoftirqd/108:24:041
699999370,11cyclictest28195-21latency_hist07:55:011
699999370,10cyclictest3891-21chrt11:32:441
699999360,8cyclictest1205-21perl10:20:161
699999360,10cyclictest13767-21chrt11:54:551
6999993428,4cyclictest25-21ksoftirqd/110:56:231
699999326,6cyclictest25-21ksoftirqd/112:15:251
699999325,6cyclictest25-21ksoftirqd/111:25:261
699999320,6cyclictest25-21ksoftirqd/108:31:231
6999993125,4cyclictest25-21ksoftirqd/109:11:041
6999993123,4cyclictest25-21ksoftirqd/110:15:131
6999993026,3cyclictest241ktimersoftd/108:55:231
6999993026,2cyclictest241ktimersoftd/108:25:191
6999993010,9cyclictest25-21ksoftirqd/111:05:071
6999992823,3cyclictest25-21ksoftirqd/111:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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