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2025-12-07 - 17:40
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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 376 highest latencies:
System rack2slot7.osadl.org (updated Sun Dec 07, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90954699451,9cyclictest1024773-21sendmail-msp10:52:590
909546994519,4cyclictest0-21swapper/011:14:150
90954699400,32cyclictest0-21swapper/012:38:100
909547993827,9cyclictest1065961-21sh11:34:261
90954799381,27cyclictest952167-21ntpq09:18:111
909548993625,9cyclictest1115143-21ssh12:28:142
909546993623,7cyclictest151ktimers/011:43:120
90954699343,30cyclictest0-21swapper/012:26:150
909546993419,0cyclictest0-21swapper/010:23:120
90954699339,2cyclictest171rcu_preempt10:08:160
909546993325,6cyclictest0-21swapper/010:16:120
909546993323,1cyclictest1100923-21ntpq12:13:120
90954699332,30cyclictest0-21swapper/011:36:120
90954699331,22cyclictest958239-21sendmail-msp09:26:120
90954699331,21cyclictest0-21swapper/011:48:130
909547993218,10cyclictest995495-21latency_hist10:11:111
90954699320,8cyclictest0-21swapper/007:16:120
909548993113,1cyclictest171rcu_preempt07:33:162
90954699319,5cyclictest171rcu_preempt09:08:320
909546993123,2cyclictest0-21swapper/009:18:100
90954699311,21cyclictest1018062-21fschecks_time10:38:080
90954699303,1cyclictest171rcu_preempt12:25:110
90954699302,4cyclictest171rcu_preempt12:33:170
90954699302,4cyclictest171rcu_preempt12:33:170
909546992920,9cyclictest1008272-21sendmail-msp10:30:180
909548992817,9cyclictest946481-21sendmail-msp09:07:242
909547992810,15cyclictest0-21swapper/110:13:121
90954699282,12cyclictest1062401-21apt-get11:31:120
909546992815,3cyclictest1042554-21grep11:08:100
90954799272,6cyclictest11050irq/107-eth%d12:18:111
90954799272,2cyclictest171rcu_preempt08:08:131
90954699273,14cyclictest0-21swapper/011:53:110
90954699272,10cyclictest11050irq/107-eth%d09:58:130
90954699272,10cyclictest11050irq/107-eth%d09:58:130
90954799265,1cyclictest171rcu_preempt07:31:111
90954799265,13cyclictest111788-21systemd-journal12:34:211
90954799265,13cyclictest111788-21systemd-journal12:34:211
909547992619,5cyclictest0-21swapper/111:13:211
909547992614,9cyclictest1094015-21sendmail-msp12:09:171
90954699261,24cyclictest14-21ksoftirqd/011:31:180
112699260,3rtkit-daemon1125-21rtkit-daemon09:40:212
909547992511,9cyclictest1059541-21sh11:28:061
90954699254,5cyclictest171rcu_preempt11:58:090
90954699253,2cyclictest171rcu_preempt10:58:150
90954699252,2cyclictest1091615-21/usr/sbin/munin12:03:120
90954699252,2cyclictest1091615-21/usr/sbin/munin12:03:120
90954699252,18cyclictest0-21swapper/010:01:520
90954699251,4cyclictest171rcu_preempt07:31:110
909546992512,2cyclictest0-21swapper/010:15:380
112699250,3rtkit-daemon1125-21rtkit-daemon11:54:292
90954899248,1cyclictest171rcu_preempt11:58:122
90954899243,2cyclictest171rcu_preempt11:31:182
909546992411,3cyclictest0-21swapper/012:07:240
90954899234,1cyclictest171rcu_preempt11:08:152
90954899233,6cyclictest171rcu_preempt10:52:592
90954899233,3cyclictest171rcu_preempt08:23:162
90954799232,4cyclictest171rcu_preempt08:53:071
909547992317,4cyclictest1007-21mta-sts-daemon09:08:311
90954699234,5cyclictest980026-21cut09:53:090
90954699234,17cyclictest2243333-21munin-node08:28:490
90954699233,19cyclictest1014089-21cut10:33:200
90954999223,11cyclictest0-21swapper/311:13:213
90954799225,14cyclictest980490-21ntpq09:53:131
90954799222,4cyclictest11050irq/107-eth%d09:43:111
90954699227,7cyclictest1007-21mta-sts-daemon07:21:150
909546992213,1cyclictest11050irq/107-eth%d10:48:110
112699220,1rtkit-daemon96665650ssh09:36:211
90954899215,3cyclictest171rcu_preempt12:18:112
909548992116,3cyclictest935188-21tune2fs08:33:072
90954899211,4cyclictest171rcu_preempt12:11:552
90954799210,4cyclictest11050irq/107-eth%d10:32:551
90954699215,7cyclictest11050irq/107-eth%d09:43:440
90954699215,2cyclictest171rcu_preempt08:08:450
112699210,1rtkit-daemon0-21swapper/108:56:511
112699210,0rtkit-daemon0-21swapper/112:26:241
112699210,0rtkit-daemon0-21swapper/109:16:101
90954899203,9cyclictest1007-21mta-sts-daemon08:38:232
909548992014,5cyclictest945354-21fschecks_count09:03:062
90954899200,2cyclictest913711-21fschecks_count07:28:072
90954799208,6cyclictest259-21jbd2/mmcblk0p2-808:46:221
90954799207,9cyclictest1083791-21ssh11:54:211
90954699203,4cyclictest171rcu_preempt09:46:570
90954699203,2cyclictest171rcu_preempt11:23:120
90954699201,8cyclictest946974-21latency_hist09:06:120
90954699201,18cyclictest944666-21grep08:58:160
90954699200,2cyclictest111788-21systemd-journal09:29:330
90954999193,8cyclictest0-21swapper/310:28:273
909548991916,2cyclictest341rcuc/212:10:412
909548991913,4cyclictest980007-21fschecks_time09:53:092
909548991910,3cyclictest351ktimers/211:11:202
90954799194,9cyclictest11050irq/107-eth%d11:18:081
90954799193,12cyclictest1075884-21ssh11:46:141
90954699193,14cyclictest111788-21systemd-journal07:33:480
909546991915,3cyclictest946481-21sendmail-msp09:13:210
90954699191,12cyclictest0-21swapper/011:03:040
112699190,3rtkit-daemon1005-21mta-sts-daemon09:28:342
90954999184,7cyclictest0-21swapper/307:33:163
90954899186,3cyclictest11050irq/107-eth%d11:03:052
90954899182,4cyclictest171rcu_preempt11:23:122
90954899180,1cyclictest171rcu_preempt08:53:072
90954799184,8cyclictest1031086-21/usr/sbin/munin10:53:301
90954799183,13cyclictest1125535-21sh12:38:121
90954699182,12cyclictest1008-21mta-sts-daemon07:16:120
909546991816,1cyclictest968756-21grep09:38:180
112699180,0rtkit-daemon0-21swapper/107:52:061
90954999174,8cyclictest0-21swapper/310:13:123
90954999173,7cyclictest0-21swapper/312:18:113
90954899174,3cyclictest920832-21ntpq07:48:112
909548991711,2cyclictest11050irq/107-eth%d09:43:112
90954899170,2cyclictest171rcu_preempt09:48:172
90954799173,9cyclictest1073313-21ldconfig11:43:121
909547991714,2cyclictest1006750-21unixbench_multi10:23:191
90954799171,2cyclictest171rcu_preempt10:28:271
909547991712,4cyclictest171rcu_preempt10:16:121
909547991710,4cyclictest171rcu_preempt10:58:151
90954999163,7cyclictest0-21swapper/309:43:123
90954999162,7cyclictest0-21swapper/309:58:133
90954999162,7cyclictest0-21swapper/309:58:133
90954999161,9cyclictest0-21swapper/310:33:253
90954899163,2cyclictest171rcu_preempt10:32:042
90954899163,11cyclictest1075642-21sendmail-msp11:48:142
90954899162,9cyclictest1005-21mta-sts-daemon09:33:102
90954899162,2cyclictest11050irq/107-eth%d11:18:152
90954899161,9cyclictest1125536-21ntpq12:38:122
909548991612,3cyclictest919785-21sendmail-msp07:53:212
90954899161,11cyclictest995497-21latency_hist10:11:112
90954899161,11cyclictest911744-21apt-get07:21:142
909548991610,4cyclictest0-21swapper/210:48:082
90954899160,3cyclictest171rcu_preempt08:06:112
90954799166,5cyclictest0-21swapper/107:48:111
90954799163,3cyclictest171rcu_preempt12:03:141
90954799163,3cyclictest171rcu_preempt12:03:141
90954799162,4cyclictest11050irq/107-eth%d09:57:321
90954799162,4cyclictest11050irq/107-eth%d09:57:321
90954799162,10cyclictest111788-21systemd-journal08:13:151
909547991610,3cyclictest1005-21mta-sts-daemon11:05:461
90954699167,7cyclictest1005-21mta-sts-daemon08:41:370
90954699165,9cyclictest111788-21systemd-journal08:46:220
90954699164,3cyclictest0-21swapper/010:43:140
90954699162,12cyclictest928591-21fschecks_time08:13:090
909546991613,2cyclictest925161-21cpuspeed08:03:050
909546991613,2cyclictest1007-21mta-sts-daemon08:36:140
909546991612,3cyclictest1104685-21ssh12:18:060
90954699160,9cyclictest0-21swapper/008:33:040
90954699160,11cyclictest963482-21/usr/sbin/munin09:33:140
90954999153,8cyclictest0-21swapper/309:18:103
90954999153,6cyclictest0-21swapper/312:38:123
90954999151,7cyclictest0-21swapper/311:43:123
90954899155,7cyclictest351ktimers/209:58:132
90954899155,7cyclictest351ktimers/209:58:132
90954899153,9cyclictest1008272-21sendmail-msp10:30:032
90954899152,7cyclictest997459-21/usr/sbin/munin10:13:122
90954899152,4cyclictest171rcu_preempt11:36:122
90954899151,3cyclictest1133527-21latency_hist12:46:122
909548991512,2cyclictest918059-21unixbench_singl07:38:172
90954899151,12cyclictest946481-21sendmail-msp09:13:132
90954899150,1cyclictest171rcu_preempt11:26:152
90954799159,3cyclictest0-21swapper/109:23:141
90954799157,2cyclictest11050irq/107-eth%d09:28:071
90954799154,8cyclictest271ktimers/110:03:121
90954799151,12cyclictest912528-21netstat07:23:111
90954699151,2cyclictest0-21swapper/007:58:090
909546991510,2cyclictest920006-21/usr/sbin/munin07:48:050
90954699150,11cyclictest0-21swapper/007:43:130
112699150,2rtkit-daemon1125-21rtkit-daemon08:29:381
90954999146,5cyclictest0-21swapper/312:33:173
90954999146,5cyclictest0-21swapper/312:33:173
90954999144,3cyclictest0-21swapper/308:53:073
90954999143,7cyclictest0-21swapper/310:08:163
90954999143,7cyclictest0-21swapper/307:48:113
90954999143,5cyclictest0-21swapper/310:53:253
90954999143,3cyclictest0-21swapper/308:18:123
90954999142,7cyclictest0-21swapper/308:08:133
90954999142,5cyclictest0-21swapper/309:06:163
90954999141,7cyclictest0-21swapper/308:13:123
90954999140,6cyclictest0-21swapper/309:27:333
90954899148,5cyclictest0-21swapper/210:18:102
90954899144,8cyclictest1073745-21/usr/sbin/munin11:43:162
90954899142,8cyclictest1120888-21/usr/sbin/munin12:33:232
90954899142,8cyclictest1120888-21/usr/sbin/munin12:33:232
90954899142,10cyclictest111788-21systemd-journal07:46:112
90954899141,8cyclictest941630-21latency_hist08:51:122
90954899141,4cyclictest171rcu_preempt08:13:172
909548991411,2cyclictest1112670-21sendmail12:26:122
90954799142,8cyclictest1086788-21ssh11:58:071
90954799142,8cyclictest1019015-21timerwakeupswit10:38:181
90954699147,3cyclictest0-21swapper/008:53:070
90954699143,7cyclictest1132277-21ssh12:44:390
90954699140,9cyclictest916704-21/usr/sbin/munin07:38:130
90954999134,5cyclictest0-21swapper/309:53:133
90954999134,4cyclictest0-21swapper/311:48:133
90954999134,4cyclictest0-21swapper/311:06:123
90954999133,5cyclictest0-21swapper/312:23:113
90954999133,5cyclictest0-21swapper/307:18:133
90954999132,7cyclictest0-21swapper/311:16:383
90954999132,5cyclictest0-21swapper/308:23:163
90954999131,7cyclictest0-21swapper/312:06:123
90954999131,7cyclictest0-21swapper/307:31:113
90954999131,6cyclictest0-21swapper/308:46:223
90954999130,7cyclictest0-21swapper/311:34:263
90954999130,7cyclictest0-21swapper/310:48:043
90954899133,9cyclictest906650-1kworker/2:1H+kblockd07:56:152
90954899133,8cyclictest932964-21sendmail-msp08:28:172
90954899132,2cyclictest171rcu_preempt10:58:152
90954899131,9cyclictest930184-21grep08:18:072
90954899131,10cyclictest989528-21/usr/sbin/munin10:03:172
90954899130,2cyclictest171rcu_preempt09:18:162
90954899130,1cyclictest171rcu_preempt10:23:122
90954899130,1cyclictest171rcu_preempt08:08:082
90954799138,3cyclictest1024773-21sendmail-msp10:47:391
90954799135,5cyclictest0-21swapper/107:33:201
90954799133,6cyclictest926378-21munin-run08:06:111
90954799131,9cyclictest975397-21/usr/sbin/munin09:48:151
90954799131,3cyclictest1110073-21/usr/sbin/munin12:23:091
90954799131,10cyclictest918700-21cut07:43:071
90954799130,3cyclictest0-21swapper/112:43:081
90954699138,2cyclictest0-21swapper/011:18:080
90954999123,5cyclictest0-21swapper/312:26:143
90954999123,5cyclictest0-21swapper/312:03:153
90954999123,5cyclictest0-21swapper/312:03:153
90954999123,5cyclictest0-21swapper/309:33:103
90954999122,7cyclictest0-21swapper/311:26:403
90954999122,6cyclictest0-21swapper/311:53:163
90954999122,6cyclictest0-21swapper/311:23:123
90954999122,4cyclictest0-21swapper/308:03:103
90954899128,3cyclictest0-21swapper/207:16:122
90954899122,6cyclictest906135-21sendmail-msp07:16:122
90954899121,2cyclictest0-21swapper/210:38:142
909548991210,1cyclictest0-21swapper/209:23:092
90954899120,4cyclictest1022182-21grep10:43:082
90954899120,3cyclictest171rcu_preempt12:01:582
90954899120,3cyclictest171rcu_preempt12:01:582
90954799129,2cyclictest1041034-21sendmail-msp11:08:081
90954799129,2cyclictest1008-21mta-sts-daemon10:42:441
90954799129,2cyclictest0-21swapper/109:06:121
90954799126,3cyclictest958239-21sendmail-msp09:32:281
90954799123,6cyclictest0-21swapper/111:23:111
90954799122,6cyclictest939784-21/usr/sbin/munin08:43:181
90954799121,4cyclictest0-21swapper/112:14:521
909547991210,1cyclictest0-21swapper/107:38:061
90954699124,4cyclictest931824-21/usr/sbin/munin08:23:110
90954699122,4cyclictest930185-21cut08:18:070
90954699120,9cyclictest922452-21sshd07:53:200
90954999114,5cyclictest0-21swapper/311:03:183
90954999114,3cyclictest0-21swapper/307:21:143
90954999113,6cyclictest0-21swapper/308:43:083
90954999113,5cyclictest0-21swapper/309:48:173
90954999113,4cyclictest0-21swapper/312:44:073
90954999113,4cyclictest0-21swapper/310:58:073
90954999113,4cyclictest0-21swapper/310:38:093
90954999113,4cyclictest0-21swapper/308:28:173
90954999113,3cyclictest0-21swapper/309:12:423
90954999112,5cyclictest0-21swapper/307:58:083
90954999112,5cyclictest0-21swapper/307:43:113
90954999112,4cyclictest0-21swapper/308:33:073
90954999112,4cyclictest0-21swapper/307:53:133
90954999112,4cyclictest0-21swapper/307:38:203
90954999111,6cyclictest0-21swapper/310:03:113
90954999111,5cyclictest0-21swapper/311:38:183
90954999111,4cyclictest0-21swapper/308:36:143
90954899112,6cyclictest939865-21munin-run08:46:122
90954899110,9cyclictest943506-21tail08:58:052
90954799112,2cyclictest11050irq/107-eth%d07:58:091
90954799112,1cyclictest11050irq/107-eth%d07:18:131
90954799111,7cyclictest1069598-21unixbench_multi11:38:241
90954799111,6cyclictest932578-21/usr/sbin/munin08:23:191
112699110,4rtkit-daemon1007-21mta-sts-daemon07:13:191
90954999104,3cyclictest0-21swapper/310:43:043
90954999104,3cyclictest0-21swapper/309:38:123
90954999103,5cyclictest0-21swapper/312:14:523
90954999103,3cyclictest0-21swapper/310:16:123
90954999102,4cyclictest0-21swapper/311:56:333
90954799107,2cyclictest936892-21telnet08:38:061
90954799107,2cyclictest935252-21gltestperf08:33:081
90954799102,3cyclictest930055-21/usr/sbin/munin08:18:061
9095499982,4cyclictest0-21swapper/310:23:103
9095499982,4cyclictest0-21swapper/309:21:243
9095499982,3cyclictest0-21swapper/309:03:043
9095499974,2cyclictest0-21swapper/308:58:053
9095499941,2cyclictest0-21swapper/307:16:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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