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2026-04-13 - 01:54
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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 Sun Apr 12, 2026 22:11:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2694024100,1sleep012-21ksoftirqd/019:12:220
638021510,3sleep30-21swapper/321:42:193
638021510,3sleep30-21swapper/321:42:193
638021510,3sleep30-21swapper/321:42:193
2679921420,6sleep30-21swapper/319:12:213
2706821200,4chrt0-21swapper/119:12:231
637421170,1sleep227-21ksoftirqd/221:42:182
637421170,1sleep227-21ksoftirqd/221:42:182
637421170,1sleep227-21ksoftirqd/221:42:182
1171121150,2sleep173-21kswapd019:57:181
1171121150,2sleep173-21kswapd019:57:181
3275021040,2sleep132746-21find20:52:201
3275021040,2sleep132746-21find20:52:201
3073521030,3sleep10-21swapper/122:07:171
3073521030,3sleep10-21swapper/122:07:171
3073521030,3sleep10-21swapper/122:07:171
417421010,2sleep10-21swapper/121:02:171
417421010,2sleep10-21swapper/121:02:171
269862980,2sleep226981-21find20:37:182
269862980,2sleep226981-21find20:37:182
269862980,2sleep226981-21find20:37:182
75142970,7chrt7512-21tail19:47:121
75142970,7chrt7512-21tail19:47:121
326002950,1sleep012-21ksoftirqd/019:27:180
326002950,1sleep012-21ksoftirqd/019:27:180
262272940,3sleep00-21swapper/020:37:080
262272940,3sleep00-21swapper/020:37:080
262272940,3sleep00-21swapper/020:37:080
21892940,1sleep012-21ksoftirqd/020:57:180
21892940,1sleep012-21ksoftirqd/020:57:180
268802900,3chrt0-21swapper/022:03:020
268802900,3chrt0-21swapper/022:03:020
268802900,3chrt0-21swapper/022:03:020
205342900,3sleep30-21swapper/320:22:083
205342900,3sleep30-21swapper/320:22:083
315262750,3sleep330455-21kworker/3:220:51:543
315262750,3sleep330455-21kworker/3:220:51:543
308632690,4chrt0-21swapper/321:35:233
308632690,4chrt0-21swapper/321:35:233
11522660,2sleep00-21swapper/022:11:380
11522660,2sleep00-21swapper/022:11:380
11522660,2sleep00-21swapper/022:11:380
174092640,2sleep10-21swapper/121:54:151
174092640,2sleep10-21swapper/121:54:151
137432570,3chrt0-21swapper/021:51:200
137432570,3chrt0-21swapper/021:51:200
39142540,3sleep10-21swapper/119:37:161
39142540,3sleep10-21swapper/119:37:161
215592540,3sleep20-21swapper/221:25:582
215592540,3sleep20-21swapper/221:25:582
207972540,4sleep333-21ksoftirqd/321:24:463
207972540,4sleep333-21ksoftirqd/321:24:463
88182530,2sleep10-21swapper/121:12:421
88182530,2sleep10-21swapper/121:12:421
255092530,2sleep30-21swapper/322:02:093
255092530,2sleep30-21swapper/322:02:093
255092530,2sleep30-21swapper/322:02:093
107512520,3sleep10-21swapper/121:47:151
107512520,3sleep10-21swapper/121:47:151
241032510,3chrt0-21swapper/121:27:501
241032510,3chrt0-21swapper/121:27:501
119772500,3chrt0-21swapper/021:16:390
119772500,3chrt0-21swapper/021:16:390
218072470,3chrt0-21swapper/121:26:211
218072470,3chrt0-21swapper/121:26:211
160632440,3sleep30-21swapper/321:52:323
160632440,3sleep30-21swapper/321:52:323
52892430,3sleep10-21swapper/121:07:071
52892430,3sleep10-21swapper/121:07:071
218772420,3sleep30-21swapper/321:58:113
218772420,3sleep30-21swapper/321:58:113
27150993917,6cyclictest73-21kswapd020:32:191
284662370,2sleep30-21swapper/320:42:093
284662370,2sleep30-21swapper/320:42:093
280462370,2sleep30-21swapper/319:17:073
280462370,2sleep30-21swapper/319:17:073
269782370,3chrt0-21swapper/120:37:171
269782370,3chrt0-21swapper/120:37:171
269782370,3chrt0-21swapper/120:37:171
323182360,3chrt0-21swapper/319:27:123
323182360,3chrt0-21swapper/319:27:123
136162350,1chrt12-21ksoftirqd/021:17:200
136162350,1chrt12-21ksoftirqd/021:17:200
136162350,1chrt12-21ksoftirqd/021:17:200
215832330,2sleep00-21swapper/021:26:000
215832330,2sleep00-21swapper/021:26:000
266742320,3sleep10-21swapper/122:02:431
266742320,3sleep10-21swapper/122:02:431
266742320,3sleep10-21swapper/122:02:431
297812310,2sleep10-21swapper/121:34:011
297812310,2sleep10-21swapper/121:34:011
230942300,3sleep20-21swapper/221:59:472
230942300,3sleep20-21swapper/221:59:472
62532290,2chrt0-21swapper/119:42:181
62532290,2chrt0-21swapper/119:42:181
325402290,4sleep30-21swapper/322:09:573
325402290,4sleep30-21swapper/322:09:573
325402290,4sleep30-21swapper/322:09:573
303052290,3sleep20-21swapper/221:34:422
303052290,3sleep20-21swapper/221:34:422
27155992919,7cyclictest13602-21find21:17:192
27155992919,7cyclictest13602-21find21:17:192
27155992919,7cyclictest13602-21find21:17:192
27155992914,7cyclictest11701-21find19:57:182
27155992914,7cyclictest11701-21find19:57:182
258142296,16sleep20-21swapper/219:12:042
24062280,3sleep00-21swapper/021:38:460
24062280,3sleep00-21swapper/021:38:460
132122280,4sleep30-21swapper/320:02:103
132122280,4sleep30-21swapper/320:02:103
79052270,1sleep08027-21cat19:47:210
79052270,1sleep08027-21cat19:47:210
38642260,1sleep00-21swapper/021:02:120
38642260,1sleep00-21swapper/021:02:120
27149992612,12cyclictest12-21ksoftirqd/020:02:190
27149992612,12cyclictest12-21ksoftirqd/020:02:190
27150992515,7cyclictest32589-21find19:27:171
27150992515,7cyclictest32589-21find19:27:171
108582255,5sleep227-21ksoftirqd/221:47:172
108582255,5sleep227-21ksoftirqd/221:47:172
27155992416,6cyclictest73-21kswapd020:57:172
27155992416,6cyclictest73-21kswapd020:57:172
27155992413,9cyclictest2972-21/usr/sbin/munin19:37:162
27155992413,9cyclictest2972-21/usr/sbin/munin19:37:162
2714999243,11cyclictest131rcu_preempt19:57:180
2714999243,11cyclictest131rcu_preempt19:57:180
27149992416,6cyclictest6905-21ssh21:11:560
27149992416,6cyclictest6905-21ssh21:11:560
27149992410,11cyclictest31529-21latency_hist20:51:540
27149992410,11cyclictest31529-21latency_hist20:51:540
174752240,1sleep20-21swapper/220:12:182
174752240,1sleep20-21swapper/220:12:182
5642230,3sleep30-21swapper/320:52:223
5642230,3sleep30-21swapper/320:52:223
27150992319,3cyclictest21-21ksoftirqd/121:17:191
27150992319,3cyclictest21-21ksoftirqd/121:17:191
27150992319,3cyclictest21-21ksoftirqd/121:17:191
27149992317,3cyclictest12-21ksoftirqd/021:42:170
27149992317,3cyclictest12-21ksoftirqd/021:42:170
27149992317,3cyclictest12-21ksoftirqd/021:42:170
27149992315,4cyclictest12-21ksoftirqd/019:42:150
27149992315,4cyclictest12-21ksoftirqd/019:42:150
2714999231,10cyclictest24771-21latency_hist22:01:540
2714999231,10cyclictest24771-21latency_hist22:01:540
248632230,3sleep0151rcuc/021:29:010
248632230,3sleep0151rcuc/021:29:010
43862220,3sleep10-21swapper/121:41:121
43862220,3sleep10-21swapper/121:41:121
2715599224,3cyclictest131rcu_preempt22:07:182
2715599224,3cyclictest131rcu_preempt22:07:182
2715599224,3cyclictest131rcu_preempt22:07:182
2715599221,4cyclictest131rcu_preempt19:42:162
2715599221,4cyclictest131rcu_preempt19:42:162
2714999224,6cyclictest0-21swapper/019:17:170
2714999224,6cyclictest0-21swapper/019:17:170
2714999223,17cyclictest0-21swapper/019:52:190
2714999223,17cyclictest0-21swapper/019:52:190
2714999221,10cyclictest4745-21ls19:41:540
2714999221,10cyclictest4745-21ls19:41:540
2715599217,4cyclictest141rcub/019:27:172
2715599217,4cyclictest141rcub/019:27:172
27155992113,6cyclictest5291-21fschecks_count21:07:072
27155992113,6cyclictest5291-21fschecks_count21:07:072
27155992112,6cyclictest73-21kswapd020:02:172
27155992112,6cyclictest73-21kswapd020:02:172
2715099219,10cyclictest5520-21grep21:42:071
2715099219,10cyclictest5520-21grep21:42:071
2715099219,10cyclictest5520-21grep21:42:071
2715099211,15cyclictest22705-21latency20:27:101
2714999218,10cyclictest20290-21latency_hist20:22:040
27149992113,4cyclictest12-21ksoftirqd/020:32:080
27149992111,7cyclictest0-21swapper/020:52:110
27149992111,7cyclictest0-21swapper/020:52:110
2715599203,4cyclictest131rcu_preempt20:52:202
2715599203,4cyclictest131rcu_preempt20:52:202
27155992011,6cyclictest0-21swapper/219:57:022
27155992011,6cyclictest0-21swapper/219:57:022
2715099206,4cyclictest131rcu_preempt20:12:101
2715099206,4cyclictest131rcu_preempt20:12:101
2715099201,2cyclictest131rcu_preempt20:17:161
2715099201,2cyclictest131rcu_preempt20:17:161
27150992011,6cyclictest8917-21/usr/sbin/munin19:52:081
27150992011,6cyclictest8917-21/usr/sbin/munin19:52:081
2715099201,10cyclictest15697-21sed20:07:181
2715099201,10cyclictest15697-21sed20:07:181
2715099201,10cyclictest14458-21latency_hist20:07:031
2715099201,10cyclictest14458-21latency_hist20:07:031
2715099200,16cyclictest20885-21find21:57:181
2715099200,16cyclictest20885-21find21:57:181
2714999202,10cyclictest18980-21sh21:56:170
2714999202,10cyclictest18980-21sh21:56:170
2714999201,9cyclictest21533-21grep20:22:190
2714999201,9cyclictest21533-21grep20:22:190
165172200,3chrt0-21swapper/321:20:363
165172200,3chrt0-21swapper/321:20:363
165172200,3chrt0-21swapper/321:20:363
156452200,2sleep03708-1kworker/0:2H20:07:180
156452200,2sleep03708-1kworker/0:2H20:07:180
2715699191,13cyclictest0-21swapper/321:07:093
2715699191,13cyclictest0-21swapper/321:07:093
2715699191,12cyclictest0-21swapper/321:02:193
2715699191,12cyclictest0-21swapper/321:02:193
2715599197,9cyclictest27-21ksoftirqd/220:17:172
2715599197,9cyclictest27-21ksoftirqd/220:17:172
2715599195,5cyclictest73-21kswapd021:52:192
2715599195,5cyclictest73-21kswapd021:52:192
2715599193,4cyclictest131rcu_preempt19:47:192
2715599193,4cyclictest131rcu_preempt19:47:192
27155991913,4cyclictest0-21swapper/221:37:122
27155991913,4cyclictest0-21swapper/221:37:122
27155991911,6cyclictest0-21swapper/220:47:122
27155991911,6cyclictest0-21swapper/220:47:122
27150991911,6cyclictest21-21ksoftirqd/120:47:171
27150991911,6cyclictest21-21ksoftirqd/120:47:171
2714999195,11cyclictest1641-21missed_timers19:32:090
2714999195,11cyclictest1641-21missed_timers19:32:090
27149991911,6cyclictest27594-21latency21:32:100
27149991911,6cyclictest27594-21latency21:32:100
27149991910,7cyclictest31654-21systemd-journal20:46:540
27149991910,7cyclictest31654-21systemd-journal20:46:540
2714999190,5cyclictest23190-21find20:27:180
27156991813,4cyclictest321rcuc/321:28:013
27156991813,4cyclictest321rcuc/321:28:013
27156991813,4cyclictest0-21swapper/321:14:383
27156991813,4cyclictest0-21swapper/321:14:383
27156991812,4cyclictest321rcuc/320:58:543
27156991812,4cyclictest321rcuc/320:58:543
27156991812,4cyclictest0-21swapper/321:41:143
27156991812,4cyclictest0-21swapper/321:41:143
27156991812,4cyclictest0-21swapper/320:27:073
2715699181,11cyclictest0-21swapper/319:51:593
2715699181,11cyclictest0-21swapper/319:51:593
2715699181,11cyclictest0-21swapper/319:22:073
2715699181,11cyclictest0-21swapper/319:22:073
2715599187,9cyclictest7932-21uname21:12:132
2715599187,9cyclictest7932-21uname21:12:132
2715599181,15cyclictest41702find21:02:172
2715599181,15cyclictest41702find21:02:172
27155991811,5cyclictest0-21swapper/220:07:192
27155991811,5cyclictest0-21swapper/220:07:192
27155991810,6cyclictest2047-21find19:32:162
27155991810,6cyclictest2047-21find19:32:162
2715099184,12cyclictest1823-21proc_pri19:32:131
2715099184,12cyclictest1823-21proc_pri19:32:131
2715099183,6cyclictest131rcu_preempt19:22:171
2715099183,6cyclictest131rcu_preempt19:22:171
27150991811,5cyclictest20904-21needreboot20:22:111
27150991811,5cyclictest20904-21needreboot20:22:111
27150991811,4cyclictest21-21ksoftirqd/119:17:061
27150991811,4cyclictest21-21ksoftirqd/119:17:061
27150991810,6cyclictest28217-21fschecks_time20:42:071
27150991810,6cyclictest28217-21fschecks_time20:42:071
2714999185,10cyclictest30360-21ntp_kernel_pll_19:22:110
2714999185,10cyclictest30360-21ntp_kernel_pll_19:22:110
2714999181,14cyclictest18590-21fschecks_count20:17:070
2714999180,16cyclictest16942-21ls20:12:090
2714999180,16cyclictest16942-21ls20:12:090
166412180,3sleep30-21swapper/320:12:073
166412180,3sleep30-21swapper/320:12:073
2715699174,10cyclictest4652-21chrt19:41:163
2715699174,10cyclictest4652-21chrt19:41:163
2715699173,10cyclictest0-21swapper/319:32:063
2715699173,10cyclictest0-21swapper/319:32:063
27156991712,4cyclictest0-21swapper/321:47:383
27156991712,4cyclictest0-21swapper/321:47:383
2715599179,5cyclictest28594-21ntp_kernel_pll_20:42:112
2715599179,5cyclictest28594-21ntp_kernel_pll_20:42:112
2715599178,7cyclictest30036-21grep19:22:072
2715599178,7cyclictest30036-21grep19:22:072
2715599173,11cyclictest23419-21head20:27:192
27155991711,4cyclictest0-21swapper/219:17:102
27155991711,4cyclictest0-21swapper/219:17:102
2715599171,13cyclictest23502-21find21:27:182
2715599171,13cyclictest23502-21find21:27:182
2715099177,3cyclictest21-21ksoftirqd/120:57:081
2715099177,3cyclictest21-21ksoftirqd/120:57:081
27156991611,3cyclictest0-21swapper/320:32:173
2715699161,10cyclictest0-21swapper/320:07:073
2715699161,10cyclictest0-21swapper/320:07:073
27156991610,4cyclictest0-21swapper/320:37:123
27156991610,4cyclictest0-21swapper/320:37:123
27156991610,4cyclictest0-21swapper/320:37:123
27156991610,4cyclictest0-21swapper/319:56:563
27156991610,4cyclictest0-21swapper/319:56:563
2715599162,12cyclictest25025-21switchtime20:32:182
2715599162,12cyclictest20451-21grep20:22:072
2715599162,12cyclictest20451-21grep20:22:072
2715599161,13cyclictest25424-21ssh22:02:082
2715599161,13cyclictest25424-21ssh22:02:082
2715599161,13cyclictest25424-21ssh22:02:082
2715699152,10cyclictest19695-21chrt20:17:583
2715699152,10cyclictest19695-21chrt20:17:583
2715699151,11cyclictest11012-21chrt19:57:073
2715699151,11cyclictest11012-21chrt19:57:073
27156991510,3cyclictest0-21swapper/319:42:583
27156991510,3cyclictest0-21swapper/319:42:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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