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2025-12-21 - 13:47
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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 rackbslot6.osadl.org (updated Sun Dec 21, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2803623270,4sleep10-21swapper/119:09:551
383821850,3sleep12987899cyclictest23:55:051
1068911010,3ptp4l401ktimersoftd/319:14:183
2988399640,3cyclictest2517-21chrt19:20:582
29883995811,22cyclictest2614-21seq21:36:332
72132560,4sleep37215-21timerandwakeup21:45:113
2988999488,6cyclictest41-21ksoftirqd/323:49:463
262912470,3sleep12987899cyclictest21:20:001
2988999457,7cyclictest41-21ksoftirqd/300:10:003
29889994512,7cyclictest41-21ksoftirqd/320:00:053
2988999446,6cyclictest41-21ksoftirqd/300:30:083
2988999446,6cyclictest41-21ksoftirqd/300:30:083
2988999444,7cyclictest41-21ksoftirqd/320:49:563
2988999444,7cyclictest41-21ksoftirqd/320:49:563
2988999435,6cyclictest41-21ksoftirqd/323:54:573
2988999434,7cyclictest41-21ksoftirqd/322:55:023
2988999426,6cyclictest41-21ksoftirqd/322:30:123
2988999426,6cyclictest41-21ksoftirqd/319:55:003
2988999424,6cyclictest41-21ksoftirqd/319:14:523
2988999423,6cyclictest41-21ksoftirqd/319:29:413
2988999423,6cyclictest401ktimersoftd/323:35:083
2988999413,7cyclictest41-21ksoftirqd/323:15:023
2988999413,7cyclictest41-21ksoftirqd/320:14:423
2988999413,6cyclictest41-21ksoftirqd/322:50:023
2988999407,4cyclictest41-21ksoftirqd/323:00:053
2988999404,7cyclictest41-21ksoftirqd/322:45:023
2988999404,7cyclictest41-21ksoftirqd/300:35:043
2988999401,6cyclictest41-21ksoftirqd/320:19:593
2988999394,6cyclictest41-21ksoftirqd/321:20:053
2988999393,7cyclictest41-21ksoftirqd/321:15:113
2988999393,6cyclictest41-21ksoftirqd/300:05:133
2988999392,6cyclictest41-21ksoftirqd/323:40:153
2988399392,28cyclictest31846-21apt-get22:39:572
106891390,0ptp4l401ktimersoftd/323:10:123
2988999386,7cyclictest41-21ksoftirqd/321:05:023
2988999384,7cyclictest41-21ksoftirqd/320:10:003
2988999383,6cyclictest41-21ksoftirqd/323:50:073
2988999383,6cyclictest41-21ksoftirqd/321:34:433
2988999383,6cyclictest41-21ksoftirqd/320:46:013
2988999383,6cyclictest41-21ksoftirqd/320:46:013
2988999383,6cyclictest41-21ksoftirqd/319:39:493
2988999383,6cyclictest41-21ksoftirqd/300:26:203
2988999383,5cyclictest41-21ksoftirqd/300:19:593
2988999382,7cyclictest41-21ksoftirqd/320:24:573
2988399383,28cyclictest29474-21apt-get22:34:562
2988399383,28cyclictest29474-21apt-get22:34:562
2988399383,27cyclictest29632-21apt-get20:19:552
29883993822,13cyclictest33-21ksoftirqd/222:19:472
2988399380,5cyclictest17512-21ls19:54:552
106891380,0ptp4l401ktimersoftd/323:05:043
106891380,0ptp4l401ktimersoftd/300:15:053
2988999375,7cyclictest41-21ksoftirqd/322:10:003
2988999374,7cyclictest41-21ksoftirqd/321:39:563
2988999373,6cyclictest41-21ksoftirqd/322:24:553
2988999373,5cyclictest41-21ksoftirqd/322:40:143
29889993732,3cyclictest41-21ksoftirqd/321:49:593
2988999372,6cyclictest41-21ksoftirqd/319:44:543
2988999370,5cyclictest41-21ksoftirqd/321:24:593
2988399373,27cyclictest5775-21apt-get21:44:552
2988399372,27cyclictest11296-21apt-get23:04:592
2988399370,4cyclictest14948-21/usr/sbin/munin00:19:572
109822370,7sleep0101ktimersoftd/000:10:090
2988999367,6cyclictest41-21ksoftirqd/320:05:103
2988999364,7cyclictest41-21ksoftirqd/322:19:433
2988999364,6cyclictest41-21ksoftirqd/321:55:013
2988999364,6cyclictest41-21ksoftirqd/321:35:023
2988999364,6cyclictest41-21ksoftirqd/320:40:003
2988999363,6cyclictest41-21ksoftirqd/319:23:503
2988999363,5cyclictest41-21ksoftirqd/320:35:103
29889993630,3cyclictest41-21ksoftirqd/323:20:033
2988999362,6cyclictest41-21ksoftirqd/321:14:033
2988999362,5cyclictest41-21ksoftirqd/319:26:153
2988999360,6cyclictest37692chrt20:31:253
2988399366,20cyclictest30024-21timerwakeupswit21:25:112
2988399363,27cyclictest0-21swapper/222:14:562
2988399363,27cyclictest0-21swapper/220:29:572
2988399362,27cyclictest30484-21apt-get23:44:582
2988399362,27cyclictest27107-21apt-get22:29:562
2988399362,26cyclictest5512-21apt-get19:29:562
29883993621,12cyclictest33-21ksoftirqd/219:44:192
2988399360,4cyclictest10582-21grep23:00:152
106891360,0ptp4l401ktimersoftd/322:04:283
2988999352,6cyclictest41-21ksoftirqd/320:55:023
29889993515,9cyclictest41-21ksoftirqd/322:35:023
29889993515,9cyclictest41-21ksoftirqd/322:35:023
2988399352,27cyclictest3177-21apt-get21:39:552
2988399352,27cyclictest0-21swapper/200:04:582
2988399352,26cyclictest32029-21apt-get20:24:562
2988399352,26cyclictest25887-21apt-get21:19:562
29883993515,17cyclictest18082-21latency_hist23:19:452
2988399351,27cyclictest1814-21apt-get22:44:562
106891350,0ptp4l401ktimersoftd/323:27:343
2988999344,7cyclictest41-21ksoftirqd/321:04:423
2988999343,6cyclictest41-21ksoftirqd/323:29:583
29889993430,2cyclictest391rcuc/300:40:433
29889993428,3cyclictest41-21ksoftirqd/322:04:573
2988399346,24cyclictest11168-21sed21:55:022
2988399343,26cyclictest14994-21snmp_o5powerctl23:10:102
2988399343,25cyclictest19930-21apt-get19:59:532
2988399342,27cyclictest0-21swapper/220:39:552
2988399342,26cyclictest0-21swapper/221:59:552
2988399342,26cyclictest0-21swapper/220:54:532
2988399342,25cyclictest9916-21apt-get00:10:002
2988399342,24cyclictest27881-21apt-get23:40:012
2988399340,5cyclictest1966-21cat23:50:182
121132340,4sleep212116-21gltestperf20:49:582
121132340,4sleep212116-21gltestperf20:49:582
2988999333,7cyclictest41-21ksoftirqd/319:35:133
2988399333,25cyclictest0-21swapper/219:44:522
2988399333,23cyclictest30142-21apt-get19:14:522
2988399332,26cyclictest0-21swapper/223:54:562
2988399332,24cyclictest4341-21apt-get20:34:552
2988399332,24cyclictest23139-21apt-get23:29:572
2988399332,24cyclictest14984-21apt-get19:49:532
2988399332,23cyclictest27266-21apt-get20:14:562
29883993316,14cyclictest33-21ksoftirqd/200:18:382
2988399330,4cyclictest17923-21fschecks_count22:10:022
277352337,14sleep20-21swapper/219:09:532
2988999321,5cyclictest41-21ksoftirqd/319:54:013
2988399326,22cyclictest27019-21latency_hist20:14:412
2988399323,24cyclictest6546-21apt-get22:54:592
2988399322,23cyclictest24482-21apt-get00:39:582
2988399321,28cyclictest22114-21snmp_o5powerctl23:25:122
2988399321,28cyclictest21096-21snmp_o5powerctl00:30:142
2988399321,28cyclictest21096-21snmp_o5powerctl00:30:142
2988399321,25cyclictest21148-21apt-get21:09:552
2988399320,4cyclictest5398-21ptp4l22:50:072
2988399320,4cyclictest23652-21snmp_o5powerctl20:05:072
2988399320,3cyclictest169912sleep222:05:462
279892326,12sleep00-21swapper/019:09:550
29889993124,4cyclictest41-21ksoftirqd/322:20:053
2988399319,18cyclictest7985-21cpuspeed_turbos19:34:552
2988399316,20cyclictest17371-21acpi00:24:572
2988399312,23cyclictest8136-21apt-get21:49:552
2988399312,22cyclictest25506-21apt-get23:34:582
2988399312,22cyclictest18783-21apt-get21:04:562
2988399311,25cyclictest23966-21gltestperf21:14:572
2988399310,4cyclictest6042-21irqstats00:00:052
29889993025,3cyclictest41-21ksoftirqd/300:00:013
2988399306,21cyclictest9884-21irqrtprio20:45:002
2988399306,21cyclictest9884-21irqrtprio20:45:002
2988399306,21cyclictest17021-21cat23:15:052
2988399303,24cyclictest31842-21/usr/sbin/munin21:30:062
2988399300,4cyclictest24992-21df_inode22:24:582
2988399300,2cyclictest0-21swapper/221:00:002
2988399294,22cyclictest4610-21timerandwakeup19:25:082
453222821,3sleep09-21ksoftirqd/021:40:120
2988399281,3cyclictest23462-21/usr/sbin/munin00:35:132
29873992721,3cyclictest9-21ksoftirqd/020:00:120
29873992721,3cyclictest9-21ksoftirqd/019:50:300
29873992720,4cyclictest9-21ksoftirqd/020:43:300
29878992619,4cyclictest25-21ksoftirqd/121:33:091
29873992621,3cyclictest9-21ksoftirqd/023:30:150
29873992621,3cyclictest9-21ksoftirqd/022:45:540
29873992621,3cyclictest9-21ksoftirqd/021:10:070
29873992620,3cyclictest9-21ksoftirqd/022:51:260
29873992620,3cyclictest9-21ksoftirqd/020:27:320
29873992620,3cyclictest9-21ksoftirqd/019:24:510
29873992619,4cyclictest9-21ksoftirqd/021:30:510
29873992619,4cyclictest9-21ksoftirqd/000:06:080
29878992519,3cyclictest25-21ksoftirqd/123:27:571
29878992519,3cyclictest25-21ksoftirqd/122:04:521
29878992519,3cyclictest25-21ksoftirqd/121:59:311
29878992519,3cyclictest25-21ksoftirqd/121:11:321
29878992518,4cyclictest25-21ksoftirqd/122:50:571
29878992518,4cyclictest25-21ksoftirqd/122:29:421
29878992518,4cyclictest25-21ksoftirqd/121:37:591
29878992518,4cyclictest25-21ksoftirqd/120:03:331
29878992518,4cyclictest25-21ksoftirqd/119:40:161
29878992518,4cyclictest25-21ksoftirqd/119:37:271
29878992518,4cyclictest25-21ksoftirqd/100:33:351
29878992518,4cyclictest25-21ksoftirqd/100:33:351
29873992519,3cyclictest9-21ksoftirqd/022:19:130
29873992519,3cyclictest9-21ksoftirqd/019:49:340
29873992519,3cyclictest9-21ksoftirqd/019:31:230
29873992518,4cyclictest9-21ksoftirqd/023:11:480
29873992517,5cyclictest9-21ksoftirqd/021:08:430
29878992419,3cyclictest25-21ksoftirqd/100:40:561
29878992418,3cyclictest25-21ksoftirqd/123:01:541
29878992418,3cyclictest25-21ksoftirqd/119:33:091
29878992417,4cyclictest25-21ksoftirqd/122:22:151
29878992417,4cyclictest25-21ksoftirqd/121:16:511
29878992417,4cyclictest25-21ksoftirqd/120:55:431
29878992417,4cyclictest25-21ksoftirqd/120:28:541
29878992417,4cyclictest25-21ksoftirqd/120:15:571
29878992417,4cyclictest2179-21cut22:45:001
29873992419,3cyclictest9-21ksoftirqd/022:24:590
29873992419,3cyclictest9-21ksoftirqd/020:23:310
29873992418,3cyclictest9-21ksoftirqd/023:01:210
29873992418,3cyclictest9-21ksoftirqd/022:31:200
29873992418,3cyclictest9-21ksoftirqd/020:47:480
29873992418,3cyclictest9-21ksoftirqd/020:47:480
29873992418,3cyclictest9-21ksoftirqd/019:23:400
29873992418,3cyclictest9-21ksoftirqd/000:24:180
29873992417,4cyclictest9-21ksoftirqd/000:44:250
29873992416,5cyclictest9-21ksoftirqd/023:06:400
29878992318,3cyclictest25-21ksoftirqd/100:14:561
29878992317,3cyclictest25-21ksoftirqd/123:50:561
29878992317,3cyclictest25-21ksoftirqd/121:29:271
29878992317,3cyclictest25-21ksoftirqd/121:07:011
29878992317,3cyclictest25-21ksoftirqd/119:16:031
29878992317,3cyclictest25-21ksoftirqd/100:13:581
29878992316,4cyclictest32149-21grep23:45:151
29878992316,4cyclictest29501-21grep23:40:171
29878992316,4cyclictest25-21ksoftirqd/123:18:111
29878992316,4cyclictest25-21ksoftirqd/120:52:021
29878992316,4cyclictest25-21ksoftirqd/120:52:021
29878992316,4cyclictest25-21ksoftirqd/119:45:301
29873992318,3cyclictest9-21ksoftirqd/020:19:330
29873992317,3cyclictest9-21ksoftirqd/021:50:420
29873992317,3cyclictest9-21ksoftirqd/021:02:110
29873992317,3cyclictest9-21ksoftirqd/020:53:100
29873992317,3cyclictest9-21ksoftirqd/020:53:100
29873992316,4cyclictest9-21ksoftirqd/019:34:490
2987899228,4cyclictest25-21ksoftirqd/120:45:281
2987899228,4cyclictest25-21ksoftirqd/120:45:281
29878992216,3cyclictest25-21ksoftirqd/123:35:501
29878992216,3cyclictest25-21ksoftirqd/123:11:361
29878992216,3cyclictest25-21ksoftirqd/122:35:361
29878992216,3cyclictest25-21ksoftirqd/122:35:361
29878992216,3cyclictest25-21ksoftirqd/121:00:221
29878992216,3cyclictest25-21ksoftirqd/120:06:301
29878992216,3cyclictest25-21ksoftirqd/119:51:511
29878992215,4cyclictest25-21ksoftirqd/120:20:351
29878992215,4cyclictest2393-21grep20:30:021
29873992217,3cyclictest9-21ksoftirqd/020:12:430
29873992217,3cyclictest12640-21apt-get00:14:580
29873992216,4cyclictest9-21ksoftirqd/023:48:210
29873992216,4cyclictest9-21ksoftirqd/022:08:010
29873992216,3cyclictest9-21ksoftirqd/000:30:080
29873992216,3cyclictest9-21ksoftirqd/000:30:080
29873992216,3cyclictest18387-21apt-get23:19:570
29873992215,4cyclictest9-21ksoftirqd/023:50:300
29873992215,4cyclictest9-21ksoftirqd/020:54:500
2987399221,17cyclictest0-21swapper/019:44:400
29878992116,3cyclictest25-21ksoftirqd/122:30:261
29878992115,3cyclictest25-21ksoftirqd/123:09:341
29878992115,3cyclictest25-21ksoftirqd/122:41:111
29878992115,3cyclictest25-21ksoftirqd/122:02:451
29878992115,3cyclictest25-21ksoftirqd/120:40:311
29878992115,3cyclictest25-21ksoftirqd/100:04:231
2987899211,4cyclictest21319-21snmp_o5powerctl22:15:081
29878992114,4cyclictest25-21ksoftirqd/120:34:521
29873992117,2cyclictest0-21swapper/023:59:100
29873992115,4cyclictest9-21ksoftirqd/022:37:230
29873992115,4cyclictest9-21ksoftirqd/022:37:230
29873992115,4cyclictest25788-21fschecks_count23:35:010
29873992114,4cyclictest9-21ksoftirqd/021:38:340
29873992114,4cyclictest9-21ksoftirqd/021:24:450
29873992114,4cyclictest9-21ksoftirqd/000:03:270
29873992114,4cyclictest101ktimersoftd/022:09:580
2987399211,3cyclictest30402-21diskstats19:14:560
2987399210,18cyclictest4602-21diskstats20:34:570
29878992015,3cyclictest25-21ksoftirqd/100:25:001
29878992014,4cyclictest25-21ksoftirqd/119:55:141
29878992014,4cyclictest190-21jbd2/sda1-821:48:031
2987899201,17cyclictest0-21swapper/100:20:391
2987899201,16cyclictest8430-21irqstats00:05:061
2987399202,15cyclictest22764-21grep00:35:050
29873992015,3cyclictest9-21ksoftirqd/021:54:550
29873992015,3cyclictest9-21ksoftirqd/020:09:340
29873992014,4cyclictest9-21ksoftirqd/022:43:010
29873992014,3cyclictest9-21ksoftirqd/021:46:450
29873992013,4cyclictest29100-21ptp4l23:40:100
2987399201,17cyclictest0-21swapper/022:20:000
2987399201,15cyclictest17520-21cstates19:54:550
2987399200,18cyclictest0-21swapper/022:57:210
29878991914,3cyclictest2087-21python19:20:041
2987899191,3cyclictest7881-21snmp_o5powerctl22:55:101
29878991913,3cyclictest3421-21fschecks_count19:24:551
29878991912,4cyclictest25-21ksoftirqd/120:10:351
2987899191,15cyclictest19116-21sed22:10:151
2987399191,4cyclictest16283-21diskstats23:15:000
29873991914,3cyclictest9-21ksoftirqd/000:28:000
29873991913,3cyclictest26317-21gltestperf21:20:000
29873991910,4cyclictest23968-21gltestperf21:14:570
2987399190,17cyclictest0-21swapper/020:33:170
29878991812,4cyclictest8633-21idleruntime21:49:591
29878991812,4cyclictest23354-21ptp4l-jitter00:35:091
29878991812,3cyclictest25-21ksoftirqd/121:39:491
29878991812,3cyclictest24488-21swap23:30:131
29878991812,3cyclictest19528-21pluginstate23:20:061
2987399181,15cyclictest0-21swapper/023:26:410
2987399181,15cyclictest0-21swapper/022:04:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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