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2026-04-13 - 20:59
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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 highest latencies:
System rack4slot1.osadl.org (updated Mon Apr 13, 2026 10:21:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309521370,2sleep30-21swapper/308:37:203
309521370,2sleep30-21swapper/308:37:203
309521370,2sleep30-21swapper/308:37:203
2912221180,4sleep129113-21find09:57:191
2912221180,4sleep129113-21find09:57:191
2912221180,4sleep129113-21find09:57:191
1626621150,4sleep216262-21find07:47:182
1626621150,4sleep216262-21find07:47:182
1801621110,3chrt0-21swapper/009:47:000
1801621110,3chrt0-21swapper/009:47:000
1801621110,3chrt0-21swapper/009:47:000
2388021090,2sleep10-21swapper/108:07:191
2388021090,2sleep10-21swapper/108:07:191
1053421090,2sleep20-21swapper/207:32:182
1053421090,2sleep20-21swapper/207:32:182
2202721070,1sleep227-21ksoftirqd/209:17:192
2202721070,1sleep227-21ksoftirqd/209:17:192
2202721070,1sleep227-21ksoftirqd/209:17:192
173321040,4sleep30-21swapper/310:02:153
173321040,4sleep30-21swapper/310:02:153
173321040,4sleep30-21swapper/310:02:153
2578321010,4sleep225777-21find08:12:182
2578321010,4sleep225777-21find08:12:182
3184121000,1sleep227-21ksoftirqd/209:27:202
3184121000,1sleep227-21ksoftirqd/209:27:202
85212980,3chrt0-21swapper/307:27:163
85212980,3chrt0-21swapper/307:27:163
143372980,4sleep214330-21find07:42:192
143372980,4sleep214330-21find07:42:192
106922970,2sleep10-21swapper/108:57:201
106922970,2sleep10-21swapper/108:57:201
87362960,2sleep30-21swapper/308:52:193
152372930,2chrt0-21swapper/007:47:040
152372930,2chrt0-21swapper/007:47:040
116102880,3sleep10-21swapper/107:37:071
116102880,3sleep10-21swapper/107:37:071
74952840,3sleep30-21swapper/309:36:223
74952840,3sleep30-21swapper/309:36:223
261652780,3sleep30-21swapper/309:54:563
261652780,3sleep30-21swapper/309:54:563
290242760,4chrt0-21swapper/309:24:403
290242760,4chrt0-21swapper/309:24:403
290242760,4chrt0-21swapper/309:24:403
39422690,2sleep30-21swapper/307:17:073
39422690,2sleep30-21swapper/307:17:073
92252600,3sleep20-21swapper/207:31:302
92252600,3sleep20-21swapper/207:31:302
19562580,4sleep10-21swapper/109:31:011
19562580,4sleep10-21swapper/109:31:011
245992560,2sleep30-21swapper/309:20:183
245992560,2sleep30-21swapper/309:20:183
245992560,2sleep30-21swapper/309:20:183
16622540,3sleep2261rcuc/210:02:142
16622540,3sleep2261rcuc/210:02:142
16622540,3sleep2261rcuc/210:02:142
195882520,3sleep20-21swapper/207:57:122
195882520,3sleep20-21swapper/207:57:122
162992520,3sleep30-21swapper/309:12:143
132372490,2sleep013266-21grep09:41:550
132372490,2sleep013266-21grep09:41:550
162112480,4sleep116206-21rm10:17:171
162112480,4sleep116206-21rm10:17:171
162112480,4sleep116206-21rm10:17:171
136322480,2chrt0-21swapper/307:42:083
136322480,2chrt0-21swapper/307:42:083
96722460,3sleep00-21swapper/008:57:030
65992460,4sleep06580-21ssh10:07:190
65992460,4sleep06580-21ssh10:07:190
152832460,2sleep10-21swapper/109:42:521
152832460,2sleep10-21swapper/109:42:521
152832460,2sleep10-21swapper/109:42:521
261492440,2sleep00-21swapper/009:22:030
261492440,2sleep00-21swapper/009:22:030
261492440,2sleep00-21swapper/009:22:030
238832440,2chrt0-21swapper/009:52:190
238832440,2chrt0-21swapper/009:52:190
218722420,3chrt0-21swapper/309:50:573
218722420,3chrt0-21swapper/309:50:573
188312410,2sleep329926-21kworker/3:010:20:083
188312410,2sleep329926-21kworker/3:010:20:083
188312410,2sleep329926-21kworker/3:010:20:083
244512370,2sleep224464-21ssh09:52:422
244512370,2sleep224464-21ssh09:52:422
187362360,3sleep20-21swapper/209:47:112
187362360,3sleep20-21swapper/209:47:112
56572350,3sleep20-21swapper/208:46:562
56572350,3sleep20-21swapper/208:46:562
56572350,3sleep20-21swapper/208:46:562
124152350,1chrt12-21ksoftirqd/007:37:190
124152350,1chrt12-21ksoftirqd/007:37:190
138112330,3sleep20-21swapper/209:42:082
138112330,3sleep20-21swapper/209:42:082
138112330,3sleep20-21swapper/209:42:082
307899326,23cyclictest201rcuc/108:17:201
307899326,23cyclictest201rcuc/108:17:201
125992320,4sleep012591-21xargs09:02:170
125992320,4sleep012591-21xargs09:02:170
3078993114,7cyclictest10528-21find07:32:181
3078993114,7cyclictest10528-21find07:32:181
22982310,2sleep04894-21snmpd10:02:300
22982310,2sleep04894-21snmpd10:02:300
22982310,2sleep04894-21snmpd10:02:300
153742300,2sleep3321rcuc/309:12:013
153742300,2sleep3321rcuc/309:12:013
3077992912,3cyclictest12-21ksoftirqd/008:42:180
3077992912,3cyclictest12-21ksoftirqd/008:42:180
3077992912,3cyclictest12-21ksoftirqd/008:42:180
280662290,2sleep228075-21diskmemload09:23:072
280662290,2sleep228075-21diskmemload09:23:072
280662290,2sleep228075-21diskmemload09:23:072
3079992813,4cyclictest27-21ksoftirqd/208:17:192
3079992813,4cyclictest27-21ksoftirqd/208:17:192
3077992712,3cyclictest12-21ksoftirqd/009:57:190
3077992712,3cyclictest12-21ksoftirqd/009:57:190
3077992712,3cyclictest12-21ksoftirqd/009:57:190
17772275,14sleep20-21swapper/207:12:052
17772275,14sleep20-21swapper/207:12:052
307799269,4cyclictest12-21ksoftirqd/008:12:180
307799269,4cyclictest12-21ksoftirqd/008:12:180
307799262,8cyclictest131rcu_preempt09:15:480
307799261,2cyclictest0-21swapper/008:17:080
307799261,2cyclictest0-21swapper/008:17:080
3079992512,4cyclictest27-21ksoftirqd/208:03:252
3079992512,4cyclictest27-21ksoftirqd/208:03:252
307899252,6cyclictest131rcu_preempt09:17:201
307899252,6cyclictest131rcu_preempt09:17:201
307899252,6cyclictest131rcu_preempt09:17:201
307799254,6cyclictest12-21ksoftirqd/007:32:180
307799254,6cyclictest12-21ksoftirqd/007:32:180
3077992512,3cyclictest12-21ksoftirqd/009:32:080
3077992512,3cyclictest12-21ksoftirqd/009:32:080
108092251,2sleep20-21swapper/209:38:482
108092251,2sleep20-21swapper/209:38:482
56712240,2sleep10-21swapper/107:22:041
56712240,2sleep10-21swapper/107:22:041
307899240,3cyclictest73-21kswapd008:12:171
307899240,3cyclictest73-21kswapd008:12:171
307799246,15cyclictest7000-21grep08:47:170
307799246,15cyclictest7000-21grep08:47:170
307799244,4cyclictest131rcu_preempt09:27:190
307799244,4cyclictest131rcu_preempt09:27:190
307799243,19cyclictest19546-21grep09:47:210
307799243,19cyclictest19546-21grep09:47:210
307799242,18cyclictest10372-21fschecks_time10:12:080
3077992411,11cyclictest26866-21ssh09:22:130
3077992411,11cyclictest26866-21ssh09:22:130
3077992411,11cyclictest26866-21ssh09:22:130
30312244,13sleep10-21swapper/107:12:321
30312244,13sleep10-21swapper/107:12:321
3079992311,10cyclictest8298-21ssh10:09:412
3079992311,10cyclictest8298-21ssh10:09:412
307899231,5cyclictest131rcu_preempt09:47:191
307899231,5cyclictest131rcu_preempt09:47:191
307799232,19cyclictest21107-21cpuspeed08:02:060
307799232,19cyclictest21107-21cpuspeed08:02:060
307799231,20cyclictest28903-21cut08:22:080
307799231,20cyclictest28903-21cut08:22:080
20882231,16sleep30-21swapper/307:12:103
20882231,16sleep30-21swapper/307:12:103
308099226,12cyclictest0-21swapper/307:47:083
308099226,12cyclictest0-21swapper/307:47:083
307999223,16cyclictest29119-21sh09:57:182
307999223,16cyclictest29119-21sh09:57:182
307999223,16cyclictest29119-21sh09:57:182
307999222,5cyclictest27-21ksoftirqd/209:15:142
307999222,17cyclictest10801-21timerwakeupswit08:57:212
307999222,17cyclictest10801-21timerwakeupswit08:57:212
307999221,19cyclictest13742-21fschecks_time09:07:082
307999221,19cyclictest13742-21fschecks_time09:07:082
307999221,18cyclictest8212-21rm09:37:032
307899221,18cyclictest7647-21find07:27:061
3078992210,9cyclictest21-21ksoftirqd/107:47:181
3078992210,9cyclictest21-21ksoftirqd/107:47:181
307799222,4cyclictest10281find08:32:210
307799222,4cyclictest10281find08:32:210
307999213,16cyclictest12791-21grep09:02:182
307999213,16cyclictest12791-21grep09:02:182
307999213,15cyclictest4894-21snmpd09:32:172
307999212,17cyclictest3882-21latency_hist08:42:032
307999212,17cyclictest3882-21latency_hist08:42:032
307999212,17cyclictest3882-21latency_hist08:42:032
307999212,16cyclictest14933-21latency_hist10:16:552
307999211,18cyclictest6378-21ntp_kernel_err07:22:122
307999211,18cyclictest6378-21ntp_kernel_err07:22:122
307999211,18cyclictest30865-21fschecks_time08:27:072
307999211,18cyclictest13110-21chrt07:41:552
307999211,18cyclictest13110-21chrt07:41:552
307999211,18cyclictest1277-21head08:32:232
307999211,18cyclictest1277-21head08:32:232
307999211,11cyclictest190632ssh10:20:262
307999211,11cyclictest190632ssh10:20:262
307999211,11cyclictest190632ssh10:20:262
307899218,4cyclictest732kswapd007:27:171
307899218,4cyclictest732kswapd007:27:171
307899217,3cyclictest131rcu_preempt10:12:201
307899213,5cyclictest73-21kswapd009:12:181
307899212,3cyclictest131rcu_preempt09:07:191
307899212,3cyclictest131rcu_preempt09:07:191
3078992113,6cyclictest9130-21ssh09:37:161
3078992113,6cyclictest9130-21ssh09:37:161
307899211,15cyclictest21046-21find08:02:061
307899211,15cyclictest21046-21find08:02:061
3078992110,9cyclictest11670-21cpu09:02:051
3078992110,9cyclictest11670-21cpu09:02:051
307799213,16cyclictest20910-21latency_hist08:01:590
307799213,16cyclictest20910-21latency_hist08:01:590
307799212,17cyclictest9960-21tune2fs08:57:090
307799212,17cyclictest9960-21tune2fs08:57:090
307799212,17cyclictest17419-21fschecks_time07:52:070
307799212,17cyclictest17419-21fschecks_time07:52:070
307799212,11cyclictest31806-21unixbench_singl08:27:190
307799211,17cyclictest4577-21find07:17:160
307799211,17cyclictest4577-21find07:17:160
3077992110,3cyclictest131rcu_preempt08:37:180
3077992110,3cyclictest131rcu_preempt08:37:180
3077992110,3cyclictest131rcu_preempt08:37:180
307899203,9cyclictest23027-21fschecks_count09:52:081
307899203,9cyclictest23027-21fschecks_count09:52:081
3078992013,5cyclictest642-21gzip08:32:141
3078992013,5cyclictest642-21gzip08:32:141
3078992012,6cyclictest27242-21sh09:22:181
3078992012,6cyclictest27242-21sh09:22:181
3078992012,6cyclictest27242-21sh09:22:181
3078992011,6cyclictest0-21swapper/108:52:081
307799208,4cyclictest38750irq/56-eth010:17:330
307799208,4cyclictest38750irq/56-eth010:17:330
307799208,4cyclictest38750irq/56-eth010:17:330
307799202,6cyclictest23087-21fschecks_count08:07:070
307799202,6cyclictest23087-21fschecks_count08:07:070
3077992012,6cyclictest0-21swapper/007:25:250
3077992012,6cyclictest0-21swapper/007:25:250
308099196,9cyclictest0-21swapper/308:12:183
308099196,9cyclictest0-21swapper/308:12:183
308099191,13cyclictest0-21swapper/309:02:183
308099191,13cyclictest0-21swapper/309:02:183
307999192,15cyclictest9474-21latency_hist08:56:562
3079991913,4cyclictest0-21swapper/207:17:082
3079991913,4cyclictest0-21swapper/207:17:082
307899192,4cyclictest131rcu_preempt07:42:191
307899192,4cyclictest131rcu_preempt07:42:191
307899191,7cyclictest4242-21unixbench_multi09:32:221
307899191,7cyclictest4242-21unixbench_multi09:32:221
3078991911,6cyclictest6233-21if_eth008:47:071
3078991911,6cyclictest6233-21if_eth008:47:071
307799192,14cyclictest7864-21tune2fs07:27:080
307799192,14cyclictest7864-21tune2fs07:27:080
307799190,8cyclictest16265-21grep07:47:180
307799190,8cyclictest16265-21grep07:47:180
308099185,9cyclictest0-21swapper/307:37:073
308099185,9cyclictest0-21swapper/307:37:073
308099183,10cyclictest0-21swapper/308:57:093
308099183,10cyclictest0-21swapper/308:57:093
307999182,14cyclictest7166-21sshd08:47:362
307999182,14cyclictest7166-21sshd08:47:362
307999181,15cyclictest17494-21fschecks_time07:52:082
307999181,15cyclictest17494-21fschecks_time07:52:082
307899188,8cyclictest6282-21wc10:07:151
307899188,8cyclictest6282-21wc10:07:151
3078991812,4cyclictest4528-21needreboot08:42:111
3078991812,4cyclictest4528-21needreboot08:42:111
3078991812,4cyclictest4528-21needreboot08:42:111
3078991812,4cyclictest0-21swapper/108:22:051
3078991812,4cyclictest0-21swapper/108:22:051
307799181,14cyclictest14157-21grep09:07:130
307799181,14cyclictest14157-21grep09:07:130
308099171,12cyclictest0-21swapper/309:57:073
308099171,12cyclictest0-21swapper/309:57:073
308099171,12cyclictest0-21swapper/309:57:073
307999172,13cyclictest28896-21tune2fs08:22:082
307999172,13cyclictest28896-21tune2fs08:22:082
307999171,14cyclictest23352-21uname08:07:102
307999171,14cyclictest23352-21uname08:07:102
307899173,12cyclictest31723-21grep08:27:191
3078991711,4cyclictest0-21swapper/107:22:061
3078991710,5cyclictest0-21swapper/107:52:131
3078991710,5cyclictest0-21swapper/107:52:131
307799173,12cyclictest695-21runrttasks07:16:050
307799173,12cyclictest695-21runrttasks07:16:050
308099164,9cyclictest0-21swapper/307:32:183
308099164,9cyclictest0-21swapper/307:32:183
308099163,8cyclictest0-21swapper/309:27:203
308099163,8cyclictest0-21swapper/309:27:203
308099163,10cyclictest0-21swapper/310:12:083
308099161,11cyclictest18330-21chrt09:47:083
3080991610,4cyclictest115552sleep309:39:443
3080991610,4cyclictest115552sleep309:39:443
307899165,9cyclictest2199-21grep08:37:081
307899165,9cyclictest2199-21grep08:37:081
307899165,9cyclictest2199-21grep08:37:081
307899161,13cyclictest19267-21fschecks_count07:57:081
307899161,13cyclictest19267-21fschecks_count07:57:081
307899161,13cyclictest1093-21ssh10:02:081
307899161,13cyclictest1093-21ssh10:02:081
307899161,13cyclictest1093-21ssh10:02:081
308099151,9cyclictest20962-21chrt08:02:023
308099151,9cyclictest20962-21chrt08:02:023
308099151,9cyclictest0-21swapper/308:42:083
308099151,9cyclictest0-21swapper/308:42:083
308099151,9cyclictest0-21swapper/308:42:083
308099151,9cyclictest0-21swapper/308:22:193
308099151,9cyclictest0-21swapper/308:22:193
308099148,4cyclictest0-21swapper/310:07:183
308099148,4cyclictest0-21swapper/310:07:183
308099141,10cyclictest27412-21chrt08:17:143
308099141,10cyclictest27412-21chrt08:17:143
308099141,10cyclictest17614-21chrt07:52:093
308099141,10cyclictest17614-21chrt07:52:093
308099141,10cyclictest14946-21taskset09:42:213
308099141,10cyclictest14946-21taskset09:42:213
308099131,9cyclictest31163-21chrt08:27:103
308099131,9cyclictest0-21swapper/307:22:133
308099131,9cyclictest0-21swapper/307:22:133
308099123,7cyclictest21104-21taskset08:02:063
308099123,7cyclictest21104-21taskset08:02:063
308099123,6cyclictest0-21swapper/308:47:113
308099123,6cyclictest0-21swapper/308:47:113
308099123,6cyclictest0-21swapper/308:07:083
308099123,6cyclictest0-21swapper/308:07:083
308099121,8cyclictest802-21chrt08:32:173
308099121,8cyclictest802-21chrt08:32:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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