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2026-04-22 - 02:03
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack4slot1.osadl.org (updated Tue Apr 21, 2026 21:16:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3267126830,1sleep227-21ksoftirqd/219:12:272
3267126830,1sleep227-21ksoftirqd/219:12:272
802421080,4sleep28025-21grep19:32:262
3181421070,2sleep131462-21ls19:12:151
3181421070,2sleep131462-21ls19:12:151
2913221020,2sleep30-21swapper/320:27:273
2913221020,2sleep30-21swapper/320:27:273
1956821000,2sleep30-21swapper/320:02:273
1956821000,2sleep30-21swapper/320:02:273
1956821000,2sleep30-21swapper/320:02:273
316912800,3sleep031462-21ls19:12:140
316912800,3sleep031462-21ls19:12:140
324852710,2sleep30-21swapper/319:12:243
324852710,2sleep30-21swapper/319:12:243
145562590,2sleep014574-21latency_hist19:52:070
145562590,2sleep014574-21latency_hist19:52:070
321652520,5sleep00-21swapper/020:37:170
321652520,5sleep00-21swapper/020:37:170
99472490,3chrt0-21swapper/121:02:221
99472490,3chrt0-21swapper/121:02:221
233012480,4sleep00-21swapper/020:12:250
233012480,4sleep00-21swapper/020:12:250
173782420,3sleep20-21swapper/219:57:232
173782420,3sleep20-21swapper/219:57:232
76282400,3sleep30-21swapper/319:32:203
582993723,6cyclictest15692-21taskset19:52:261
582993723,6cyclictest15692-21taskset19:52:261
288352360,3chrt0-21swapper/220:27:222
288352360,3chrt0-21swapper/220:27:222
124582360,4sleep30-21swapper/319:46:073
124582360,4sleep30-21swapper/319:46:073
582993417,7cyclictest73-21kswapd020:27:271
582993417,7cyclictest73-21kswapd020:27:271
582993318,6cyclictest73-21kswapd020:22:291
582993318,6cyclictest73-21kswapd020:22:291
582993018,8cyclictest8021-21find19:32:261
138802300,2sleep113923-21uname21:12:241
138802300,2sleep113923-21uname21:12:241
179672290,2sleep30-21swapper/321:16:473
179672290,2sleep30-21swapper/321:16:473
583992815,6cyclictest73-21kswapd019:27:262
581992717,8cyclictest4144-21find19:22:260
581992717,8cyclictest4144-21find19:22:260
581992717,7cyclictest27223-21find20:22:280
581992717,7cyclictest27223-21find20:22:280
58299266,3cyclictest141rcub/020:42:281
58299266,3cyclictest141rcub/020:42:281
58299266,3cyclictest141rcub/020:42:281
58299261,3cyclictest131rcu_preempt20:17:261
58299261,3cyclictest131rcu_preempt20:17:261
582992610,3cyclictest21-21ksoftirqd/119:37:271
582992610,3cyclictest21-21ksoftirqd/119:37:271
311902260,2chrt0-21swapper/120:32:271
58299258,3cyclictest131rcu_preempt19:22:261
58299258,3cyclictest131rcu_preempt19:22:261
58299254,4cyclictest21-21ksoftirqd/120:07:271
58299254,4cyclictest21-21ksoftirqd/120:07:271
58299245,6cyclictest21-21ksoftirqd/120:12:261
58299245,6cyclictest21-21ksoftirqd/120:12:261
582992415,8cyclictest201rcuc/120:02:261
582992415,8cyclictest201rcuc/120:02:261
582992415,8cyclictest201rcuc/120:02:261
58399238,5cyclictest131rcu_preempt21:07:272
58399232,13cyclictest27-21ksoftirqd/220:32:272
58399231,19cyclictest26871unixbench_singl20:42:282
58399231,19cyclictest26871unixbench_singl20:42:282
58399231,19cyclictest26871unixbench_singl20:42:282
58199233,11cyclictest14315-21timerandwakeup21:12:290
58199233,11cyclictest14315-21timerandwakeup21:12:290
581992315,6cyclictest73-21kswapd019:52:260
581992315,6cyclictest73-21kswapd019:52:260
58399229,5cyclictest131rcu_preempt19:52:162
58399229,5cyclictest131rcu_preempt19:52:162
583992213,8cyclictest13764-21find19:47:252
583992213,8cyclictest13764-21find19:47:252
58399221,2cyclictest131rcu_preempt19:22:252
58399221,2cyclictest131rcu_preempt19:22:252
58299226,3cyclictest131rcu_preempt19:27:251
58199222,16cyclictest31059-21find20:32:260
58199221,9cyclictest7783-21proc_pri19:32:230
58399212,2cyclictest131rcu_preempt19:37:262
58399212,2cyclictest131rcu_preempt19:37:262
58199216,12cyclictest6013-21grep20:52:210
58199216,12cyclictest6013-21grep20:52:210
58199211,4cyclictest131rcu_preempt19:37:270
58199211,4cyclictest131rcu_preempt19:37:270
581992111,7cyclictest0-21swapper/020:18:070
581992111,7cyclictest0-21swapper/020:18:070
58199211,10cyclictest19801-21grep20:02:290
58199211,10cyclictest19801-21grep20:02:290
58199211,10cyclictest19801-21grep20:02:290
77672200,3sleep00-21swapper/020:57:180
77672200,3sleep00-21swapper/020:57:180
77672200,3sleep00-21swapper/020:57:180
58399201,5cyclictest131rcu_preempt20:12:272
58399201,5cyclictest131rcu_preempt20:12:272
58399201,10cyclictest12675-21latency_hist19:47:082
58399201,10cyclictest12675-21latency_hist19:47:082
58299204,3cyclictest131rcu_preempt20:57:261
58299204,3cyclictest131rcu_preempt20:57:261
58299204,3cyclictest131rcu_preempt20:57:261
582992014,4cyclictest0-21swapper/119:17:151
582992014,4cyclictest0-21swapper/119:17:151
582992012,6cyclictest0-21swapper/119:47:231
582992012,6cyclictest0-21swapper/119:47:231
58199208,9cyclictest3668-21fschecks_time20:47:150
58199208,9cyclictest3668-21fschecks_time20:47:150
58199201,9cyclictest9942-21ntp_offset21:02:210
58199201,9cyclictest9942-21ntp_offset21:02:210
581992011,6cyclictest0-21swapper/020:02:120
581992011,6cyclictest0-21swapper/020:02:120
58199201,10cyclictest28223-21sort20:27:150
58199201,10cyclictest28223-21sort20:27:150
52422200,3sleep30-21swapper/320:52:073
52422200,3sleep30-21swapper/320:52:073
247522200,2sleep30-21swapper/320:17:183
247522200,2sleep30-21swapper/320:17:183
58399199,8cyclictest24609-21perl20:17:162
58399199,8cyclictest24609-21perl20:17:162
583991912,5cyclictest15849-21ssh21:14:062
583991912,5cyclictest15849-21ssh21:14:062
58199196,11cyclictest1851-21awk19:17:210
58199196,11cyclictest1851-21awk19:17:210
58199192,9cyclictest11173-21tune2fs19:42:160
58199192,9cyclictest11173-21tune2fs19:42:160
58499181,14cyclictest0-21swapper/320:57:183
58499181,14cyclictest0-21swapper/320:57:183
58499181,14cyclictest0-21swapper/320:57:183
58499181,11cyclictest0-21swapper/320:37:173
58499181,11cyclictest0-21swapper/320:37:173
58399187,9cyclictest10492-21grep21:02:282
58399187,9cyclictest10492-21grep21:02:282
58399185,3cyclictest131rcu_preempt20:47:152
58399185,3cyclictest131rcu_preempt20:47:152
58399182,14cyclictest2154-21find19:17:272
58399182,14cyclictest2154-21find19:17:272
58399181,14cyclictest32650-21ntpq20:37:222
58399181,14cyclictest32650-21ntpq20:37:222
58299183,2cyclictest131rcu_preempt21:07:271
58299181,14cyclictest6469-21wc20:52:271
58299181,14cyclictest6469-21wc20:52:271
58299181,11cyclictest11401-21ls19:42:181
58299181,11cyclictest11401-21ls19:42:181
58199185,3cyclictest5278-21fschecks_count19:27:150
58199181,9cyclictest21394-21mailstats20:07:260
58199181,9cyclictest21394-21mailstats20:07:260
58199181,8cyclictest1645-21grep20:42:150
58199181,8cyclictest1645-21grep20:42:150
58199181,8cyclictest1645-21grep20:42:150
58199181,15cyclictest11282-21cpuspeed21:07:150
58499171,11cyclictest0-21swapper/319:47:183
58499171,11cyclictest0-21swapper/319:47:183
58399171,13cyclictest7367-21cpuspeed20:57:152
58399171,13cyclictest7367-21cpuspeed20:57:152
58399171,13cyclictest7367-21cpuspeed20:57:152
58399171,13cyclictest6288-21switchtime20:52:252
58399171,13cyclictest6288-21switchtime20:52:252
58399171,13cyclictest18994-21kernelversion20:02:182
58399171,13cyclictest18994-21kernelversion20:02:182
58399171,13cyclictest18994-21kernelversion20:02:182
583991710,5cyclictest20698-21grep20:07:172
583991710,5cyclictest20698-21grep20:07:172
58399170,9cyclictest27966-21cat20:27:042
58399170,9cyclictest27966-21cat20:27:042
58299177,8cyclictest3560-21grep20:47:151
58299177,8cyclictest3560-21grep20:47:151
58299173,3cyclictest131rcu_preempt19:57:281
58299173,3cyclictest131rcu_preempt19:57:281
58299173,11cyclictest821-21grep20:37:291
58299173,11cyclictest821-21grep20:37:291
58499161,9cyclictest0-21swapper/320:17:063
58499161,9cyclictest0-21swapper/320:17:063
58499161,9cyclictest0-21swapper/319:27:143
58499161,13cyclictest0-21swapper/321:07:163
58499161,10cyclictest0-21swapper/321:02:153
58499161,10cyclictest0-21swapper/321:02:153
163492161,3sleep30-21swapper/319:56:413
163492161,3sleep30-21swapper/319:56:413
58499151,9cyclictest0-21swapper/319:27:153
58499151,12cyclictest0-21swapper/319:57:173
58499151,12cyclictest0-21swapper/319:57:173
58499151,11cyclictest41472sleep319:22:263
58499148,4cyclictest33-21ksoftirqd/320:36:563
58499146,6cyclictest30341-21kworker/3:020:22:283
58499146,6cyclictest30341-21kworker/3:020:22:283
58499141,10cyclictest5881-21chrt20:52:193
58499141,10cyclictest5881-21chrt20:52:193
58499131,7cyclictest0-21swapper/320:42:153
58499131,7cyclictest0-21swapper/320:42:153
58499131,7cyclictest0-21swapper/320:42:153
58499131,10cyclictest21768-21chrt20:07:293
58499131,10cyclictest21768-21chrt20:07:293
58499121,9cyclictest10362-21chrt19:38:433
58499121,9cyclictest10362-21chrt19:38:433
58499111,7cyclictest0-21swapper/319:17:173
58499111,7cyclictest0-21swapper/319:17:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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