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2026-03-25 - 19:22
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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 Wed Mar 25, 2026 09:16:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1199225640,1sleep012-21ksoftirqd/007:12:020
1199225640,1sleep012-21ksoftirqd/007:12:020
1195321520,3sleep30-21swapper/307:12:013
1195321520,3sleep30-21swapper/307:12:013
1778021290,3sleep117772-21find07:26:581
1778021290,3sleep117772-21find07:26:581
652621010,2sleep10-21swapper/108:22:021
652621010,2sleep10-21swapper/108:22:021
235032980,2sleep30-21swapper/307:41:593
135542830,3sleep00-21swapper/008:41:500
135542830,3sleep00-21swapper/008:41:500
45912810,3chrt0-21swapper/308:17:013
45912810,3chrt0-21swapper/308:17:013
150342800,4sleep333-21ksoftirqd/307:21:503
41082790,4chrt0-21swapper/208:16:522
41082790,4chrt0-21swapper/208:16:522
25612780,1sleep012-21ksoftirqd/008:12:000
25612780,1sleep012-21ksoftirqd/008:12:000
122052740,2sleep30-21swapper/308:36:593
122052740,2sleep30-21swapper/308:36:593
122052740,2sleep30-21swapper/308:36:593
113682650,2sleep110780-21ls07:11:511
113682650,2sleep110780-21ls07:11:511
3922550,2sleep0429-21processes08:06:580
3922550,2sleep0429-21processes08:06:580
268612510,3chrt0-21swapper/307:51:523
12295994712,7cyclictest8439-21grep08:27:022
237022450,3chrt23697-21find09:06:591
237022450,3chrt23697-21find09:06:591
229392440,3sleep20-21swapper/207:41:502
133022440,1sleep2131rcu_preempt08:41:482
133022440,1sleep2131rcu_preempt08:41:482
225492420,3chrt22551-21latency_hist07:41:462
225492420,3chrt22551-21latency_hist07:41:462
235062370,1chrt12-21ksoftirqd/007:42:010
54952350,2sleep05611-21df08:21:490
54952350,2sleep05611-21df08:21:490
12294993518,7cyclictest23498-21find07:42:001
1229599348,14cyclictest7373-21latency_hist08:26:432
1229599348,14cyclictest7373-21latency_hist08:26:432
12295993320,11cyclictest662-21find08:07:002
12295993320,11cyclictest662-21find08:07:002
12293993316,15cyclictest73-21kswapd008:01:590
12293993316,15cyclictest73-21kswapd008:01:590
1229599329,8cyclictest28418-21ssh09:15:022
1229599329,8cyclictest28418-21ssh09:15:022
12295993214,13cyclictest12931-21/usr/sbin/munin07:16:492
12295993214,13cyclictest12931-21/usr/sbin/munin07:16:492
12295993017,9cyclictest16068-21find08:47:002
12295993017,9cyclictest16068-21find08:47:002
301432290,9sleep333-21ksoftirqd/308:01:453
301432290,9sleep333-21ksoftirqd/308:01:453
1229599296,8cyclictest26588-21perl07:51:502
12294992919,8cyclictest73-21kswapd008:17:001
12294992919,8cyclictest73-21kswapd008:17:001
1229599284,9cyclictest15573-21ntp_states07:21:562
1229499282,5cyclictest21-21ksoftirqd/108:07:011
1229499282,5cyclictest21-21ksoftirqd/108:07:011
61682270,3chrt0-21swapper/308:21:553
61682270,3chrt0-21swapper/308:21:553
1229599278,17cyclictest22976-21fschecks_time09:06:492
1229599278,17cyclictest22976-21fschecks_time09:06:492
12295992614,9cyclictest73-21kswapd008:36:592
12295992614,9cyclictest73-21kswapd008:36:592
12295992614,9cyclictest73-21kswapd008:36:592
12295992614,10cyclictest73-21kswapd007:31:592
12294992615,8cyclictest13899-21find07:17:001
12294992615,8cyclictest13899-21find07:17:001
1229599254,2cyclictest0-21swapper/207:36:592
12295992516,7cyclictest8461-21snmpd09:02:202
12295992516,7cyclictest8461-21snmpd09:02:202
12295992514,8cyclictest0-21swapper/207:56:482
12295992514,8cyclictest0-21swapper/207:56:482
12295992513,11cyclictest73-21kswapd007:26:582
12295992513,11cyclictest73-21kswapd007:26:582
12295992510,12cyclictest19905-21grep08:56:582
12295992510,12cyclictest19905-21grep08:56:582
1229399250,6cyclictest15856-21find07:22:000
1229599245,8cyclictest31156-21find08:01:592
1229599245,8cyclictest31156-21find08:01:592
12295992414,8cyclictest73-21kswapd008:31:592
12295992414,8cyclictest73-21kswapd008:31:592
12295992412,10cyclictest8461-21snmpd08:11:592
12295992412,10cyclictest8461-21snmpd08:11:592
12295992411,11cyclictest17769-21ps08:51:582
12295992411,11cyclictest17769-21ps08:51:582
119472244,12sleep273-21kswapd007:12:002
119472244,12sleep273-21kswapd007:12:002
1229399232,2cyclictest131rcu_preempt08:56:530
1229399232,2cyclictest131rcu_preempt08:56:530
1229399230,4cyclictest19690-21find07:31:590
12296992217,3cyclictest321rcuc/307:47:233
1229599227,10cyclictest24609-21fschecks_count07:46:492
1229499225,4cyclictest131rcu_preempt08:12:001
1229499225,4cyclictest131rcu_preempt08:12:001
12294992215,5cyclictest30881-21ntpq08:01:531
12294992215,5cyclictest30881-21ntpq08:01:531
1229499220,3cyclictest16068-21find08:47:001
1229499220,3cyclictest16068-21find08:47:001
1229399221,8cyclictest18700-21cron08:56:360
1229399221,8cyclictest18700-21cron08:56:360
12293992215,4cyclictest12-21ksoftirqd/007:26:590
12293992215,4cyclictest12-21ksoftirqd/007:26:590
101122221,3sleep30-21swapper/308:31:583
101122221,3sleep30-21swapper/308:31:583
12296992115,4cyclictest321rcuc/309:01:273
12296992115,4cyclictest321rcuc/309:01:273
12296992115,4cyclictest321rcuc/308:12:123
12296992115,4cyclictest321rcuc/308:12:123
1229499214,7cyclictest21-21ksoftirqd/107:52:021
1229499210,3cyclictest18005-21find08:52:011
1229499210,3cyclictest18005-21find08:52:011
1229399214,5cyclictest131rcu_preempt07:52:010
12293992115,3cyclictest12-21ksoftirqd/007:17:000
12293992115,3cyclictest12-21ksoftirqd/007:17:000
212502200,3sleep30-21swapper/309:01:513
212502200,3sleep30-21swapper/309:01:513
12296992016,3cyclictest321rcuc/307:17:173
12296992016,3cyclictest321rcuc/307:17:173
12296992015,3cyclictest321rcuc/307:34:533
12296992013,4cyclictest321rcuc/308:44:193
12296992013,4cyclictest321rcuc/308:44:193
1229399204,4cyclictest131rcu_preempt08:26:500
1229399201,9cyclictest22325-21grep07:41:370
1229399201,9cyclictest22325-21grep07:41:370
1229399201,9cyclictest22325-21grep07:41:370
12296991914,3cyclictest321rcuc/307:27:583
12296991914,3cyclictest321rcuc/307:27:583
1229499190,4cyclictest0-21swapper/108:56:481
1229499190,4cyclictest0-21swapper/108:56:481
1229399193,14cyclictest12354-21chrt08:37:000
1229399193,14cyclictest12354-21chrt08:37:000
1229399193,14cyclictest12354-21chrt08:37:000
1229399191,9cyclictest23490-21processes09:06:560
1229399191,9cyclictest23490-21processes09:06:560
1229399191,16cyclictest28381-21grep07:56:480
1229399191,16cyclictest28381-21grep07:56:480
1229399191,10cyclictest25192-21cut09:11:510
1229399191,10cyclictest25192-21cut09:11:510
1229399190,3cyclictest131rcu_preempt07:47:000
208122180,5sleep333-21ksoftirqd/307:36:493
208122180,5sleep333-21ksoftirqd/307:36:493
208122180,5sleep333-21ksoftirqd/307:36:493
1229699181,14cyclictest23557-21chrt09:06:573
1229699181,14cyclictest23557-21chrt09:06:573
1229499189,7cyclictest21382-21memory09:01:521
1229499189,7cyclictest21382-21memory09:01:521
1229499187,9cyclictest24842-21df_inode09:11:481
1229499187,9cyclictest24842-21df_inode09:11:481
1229499184,2cyclictest131rcu_preempt08:31:501
1229499184,2cyclictest131rcu_preempt08:31:501
1229499182,3cyclictest131rcu_preempt07:46:591
1229499182,2cyclictest131rcu_preempt07:31:591
1229499181,9cyclictest11267-21/usr/sbin/munin08:36:501
1229499181,9cyclictest11267-21/usr/sbin/munin08:36:501
1229499181,9cyclictest11267-21/usr/sbin/munin08:36:501
1229399183,13cyclictest3840-21gltestperf08:16:490
1229399183,13cyclictest3840-21gltestperf08:16:490
1229399181,15cyclictest9685-21grep08:31:500
1229399181,15cyclictest9685-21grep08:31:500
12296991711,4cyclictest0-21swapper/308:26:553
12296991711,4cyclictest0-21swapper/308:06:573
12296991711,4cyclictest0-21swapper/308:06:573
1229699171,11cyclictest0-21swapper/309:11:493
1229699171,11cyclictest0-21swapper/309:11:493
12296991710,5cyclictest321rcuc/308:04:523
12296991710,5cyclictest321rcuc/308:04:523
1229499172,12cyclictest15188-21grep07:21:501
12294991711,4cyclictest0-21swapper/107:56:511
12294991711,4cyclictest0-21swapper/107:56:511
1229499170,15cyclictest7978-21ls08:26:541
1229399171,8cyclictest15101-21/usr/sbin/munin08:46:490
1229399171,8cyclictest15101-21/usr/sbin/munin08:46:490
1229399171,6cyclictest21122-21cut09:01:500
1229399171,6cyclictest21122-21cut09:01:500
12296991611,4cyclictest321rcuc/308:56:253
12296991611,4cyclictest321rcuc/308:56:253
1229499167,7cyclictest20921-21tune2fs07:36:491
1229499167,7cyclictest20921-21tune2fs07:36:491
1229499167,7cyclictest20921-21tune2fs07:36:491
1229499155,8cyclictest13301-21df_inode08:41:481
1229499155,8cyclictest13301-21df_inode08:41:481
1229699149,3cyclictest0-21swapper/308:46:483
1229699149,3cyclictest0-21swapper/308:46:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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