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2026-08-05 - 22:08

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackeslot4s.osadl.org (updated Wed Aug 05, 2026 12:44:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
802353996862,4cyclictest335557-21systemd-journal12:07:481
802360995551,3cyclictest335557-21systemd-journal12:16:243
802360995448,4cyclictest815893-21latency_hist08:55:013
802360995348,4cyclictest335557-21systemd-journal11:27:083
80235099511,49cyclictest980475-21systemd12:16:240
802353995047,2cyclictest911988-21kworker/u8:0+flush-259:011:27:101
802353994843,3cyclictest335557-21systemd-journal10:21:361
802353994239,2cyclictest75-21kswapd010:39:211
802353993835,2cyclictest819389-21gpgv09:15:011
802358993630,4cyclictest927759-21getprofile11:27:062
802350993633,2cyclictest803180-21kworker/u8:1+flush-259:007:25:000
802350993530,4cyclictest986031-21latency_hist12:25:010
802350993327,4cyclictest823652-21latency_hist09:50:000
802350993026,3cyclictest823906-21apt-get09:50:070
802350993023,5cyclictest858845-21ntpq10:20:200
802360992924,4cyclictest335557-21systemd-journal07:30:003
802350992925,3cyclictest801665-21kworker/u8:2+flush-259:007:30:000
802360992824,3cyclictest821780-21kworker/u8:3+flush-259:010:45:243
802358992821,4cyclictest849447-21latency_hist10:15:002
802353992824,3cyclictest833981-21latency_hist10:00:011
802360992721,4cyclictest335557-21systemd-journal07:45:003
802358992722,4cyclictest335557-21systemd-journal12:16:352
802358992722,3cyclictest911988-21kworker/u8:0+events_unbound12:35:012
802353992723,3cyclictest886284-21kworker/u8:1+events_unbound11:19:201
802353992722,4cyclictest335557-21systemd-journal10:55:001
80235099270,25cyclictest1-21systemd10:40:000
802360992622,3cyclictest335557-21systemd-journal11:00:383
802358992622,3cyclictest886284-21kworker/u8:1+flush-259:011:05:162
802353992622,3cyclictest807977-21kworker/u8:1+events_unbound08:33:071
802353992621,3cyclictest911988-21kworker/u8:0+flush-259:012:30:001
802350992519,4cyclictest807112-21latency_hist07:45:000
802360992420,3cyclictest939203-21apt-get11:40:113
802360992419,3cyclictest335557-21systemd-journal11:49:383
802358992419,4cyclictest335557-21systemd-journal09:25:002
802358992419,3cyclictest944357-21apt-get11:45:122
802353992421,2cyclictest922324-21kworker/u8:3+events_unbound11:40:131
802353992420,3cyclictest817582-21kworker/u8:3+events_unbound09:13:081
802350992421,2cyclictest1-21systemd11:00:370
802350992420,3cyclictest911988-21kworker/u8:0+flush-259:012:25:280
802350992420,3cyclictest880922-21kworker/u8:2+events_unbound11:27:290
802350992418,4cyclictest335557-21systemd-journal11:13:300
802360992320,2cyclictest821780-21kworker/u8:3+flush-259:010:40:163
802358992320,2cyclictest886284-21kworker/u8:1+events_unbound11:20:012
802353992319,3cyclictest801665-21kworker/u8:2+events_unbound07:28:001
802350992320,2cyclictest911988-21kworker/u8:0+flush-259:011:45:180
802350992317,4cyclictest509-21rs:main0
802360992219,2cyclictest807977-21kworker/u8:1+flush-259:010:00:263
802360992219,2cyclictest807977-21kworker/u8:1+flush-259:010:00:263
802360992218,3cyclictest807977-21kworker/u8:1+flush-259:010:05:233
802360992218,3cyclictest807977-21kworker/u8:1+flush-259:010:05:223
802360992218,3cyclictest807977-21kworker/u8:1+events_unbound09:56:393
802360992218,3cyclictest806717-21kworker/u8:3+events_unbound08:10:003
802360992216,4cyclictest817148-21cp09:00:013
802358992220,1cyclictest922324-21kworker/u8:3+events_unbound11:34:592
802358992218,3cyclictest911988-21kworker/u8:0+events_unbound12:05:012
802358992218,3cyclictest911988-21kworker/u8:0+events_unbound12:05:002
802353992219,2cyclictest807977-21kworker/u8:1+flush-259:009:39:591
802353992219,2cyclictest490-21dbus-daemon09:00:011
802353992218,3cyclictest819902-21kworker/u8:2+events_unbound09:25:001
802350992219,2cyclictest803180-21kworker/u8:1+flush-259:007:20:010
802360992117,3cyclictest860017-21apt-get10:25:113
802360992117,3cyclictest807977-21kworker/u8:1+flush-259:010:15:253
80235899215,9cyclictest911972-21munin-run11:15:012
802358992118,2cyclictest807977-21kworker/u8:1+flush-259:010:20:242
802353992117,3cyclictest911988-21kworker/u8:0+events_unbound12:00:001
802353992117,3cyclictest821780-21kworker/u8:3+events_unbound10:30:381
802353992117,3cyclictest807977-21kworker/u8:1+flush-259:009:45:001
802353992117,3cyclictest335557-21systemd-journal11:06:371
802350992117,3cyclictest807977-21kworker/u8:1+events_unbound10:00:390
802350992117,3cyclictest807977-21kworker/u8:1+events_unbound10:00:390
802350992116,3cyclictest822387-21latency_hist09:40:000
802360992017,2cyclictest805367-21gpgv07:30:003
802350992017,2cyclictest859775-21kworker/u8:0+events_unbound10:30:180
802350992017,2cyclictest807977-21kworker/u8:1+events_unbound08:23:050
802350992016,3cyclictest911988-21kworker/u8:0+events_unbound11:43:330
802350992016,3cyclictest807977-21kworker/u8:1+flush-259:010:30:010
802350992014,4cyclictest938939-21latency_hist11:40:000
802360991914,3cyclictest819061-21store09:15:003
802360991914,3cyclictest335557-21systemd-journal10:25:013
802353991917,1cyclictest0-21swapper/111:55:001
802353991915,3cyclictest865132-21gpgv10:30:001
802353991915,3cyclictest807977-21kworker/u8:1+events_unbound09:51:381
802360991815,2cyclictest911988-21kworker/u8:0+flush-259:011:30:233
802360991815,2cyclictest906845-21idleruntime-cro11:10:003
802360991814,3cyclictest922324-21kworker/u8:3+flush-259:011:50:203
802360991814,3cyclictest917387-21apt-get11:20:113
802353991815,2cyclictest859775-21kworker/u8:0+events_unbound10:43:281
802353991813,3cyclictest335557-21systemd-journal12:11:381
802350991815,2cyclictest902319-21irqcore11:05:170
802350991815,2cyclictest802299-21kworker/u8:4+events_unbound07:40:000
802350991814,3cyclictest954424-21kworker/u8:1+flush-259:011:55:140
802360991714,3cyclictest808609-21kworker/u8:0+events_unbound08:03:043
802360991714,2cyclictest960295-21irqcore12:00:193
802360991714,2cyclictest960295-21irqcore12:00:183
802360991714,2cyclictest954424-21kworker/u8:1+flush-259:012:30:163
802360991714,2cyclictest812141-21kworker/u8:2+events_unbound08:38:283
802353991715,2cyclictest806717-21kworker/u8:3+events_unbound08:18:041
802353991714,2cyclictest821780-21kworker/u8:3+flush-259:010:55:131
802353991713,2cyclictest807977-21kworker/u8:1+flush-259:010:15:171
802353991710,5cyclictest804181-21latency_hist07:25:001
802350991713,3cyclictest817582-21kworker/u8:3+events_unbound09:10:010
802350991711,5cyclictest0-21swapper/012:15:000
802360991613,2cyclictest911988-21kworker/u8:0+flush-259:012:23:423
802360991613,2cyclictest871222-21irqcore10:35:193
802360991613,2cyclictest821780-21kworker/u8:3+flush-259:010:10:133
802360991613,2cyclictest815258-21sh08:50:003
802360991613,2cyclictest807977-21kworker/u8:1+flush-259:008:25:003
80235899163,7cyclictest970435-21munin-run12:10:002
802358991612,3cyclictest509-21rs:main2
802353991612,3cyclictest911988-21kworker/u8:0+events_unbound12:15:231
802353991612,3cyclictest880922-21kworker/u8:2+events_unbound11:11:391
802353991610,5cyclictest921369-21ntpq11:20:211
802350991614,2cyclictest821780-21kworker/u8:3+events_unbound10:10:140
802350991614,2cyclictest817582-21kworker/u8:3+events_unbound09:11:210
802350991614,1cyclictest60350irq/132-enp0s29f1:rx-011:15:270
802350991614,1cyclictest60350irq/132-enp0s29f1:rx-010:56:160
802350991614,1cyclictest60350irq/132-enp0s29f1:rx-009:55:540
802350991614,1cyclictest60350irq/132-enp0s29f1:rx-007:46:580
802350991614,1cyclictest60350irq/132-enp0s29f1:rx-007:46:580
802350991613,2cyclictest807977-21kworker/u8:1+events_unbound10:05:260
802350991613,2cyclictest807977-21kworker/u8:1+events_unbound10:05:250
802350991613,2cyclictest60350irq/132-enp0s29f1:rx-012:35:230
802350991612,3cyclictest816720-21store09:00:010
802360991512,2cyclictest806717-21kworker/u8:3+flush-259:008:20:003
802360991512,2cyclictest0-21swapper/309:00:013
802360991510,3cyclictest335557-21systemd-journal08:10:003
802358991511,3cyclictest816511-21apt-get09:00:022
80235899150,9cyclictest880911-21awk10:45:002
802353991513,1cyclictest0-21swapper/107:40:001
802353991511,3cyclictest965008-21gpgv12:05:001
802353991511,3cyclictest965008-21gpgv12:05:001
802353991511,3cyclictest509-21rs:main1
802353991511,3cyclictest509-21rs:main1
80235399151,13cyclictest0-21swapper/112:35:001
802350991514,1cyclictest60350irq/132-enp0s29f1:rx-012:07:070
802350991513,1cyclictest60350irq/132-enp0s29f1:rx-009:43:010
802350991513,1cyclictest60350irq/132-enp0s29f1:rx-007:56:400
802350991512,3cyclictest818527-21kworker/u8:0+events_unbound09:18:110
802350991512,2cyclictest931137-21kthreadcore11:30:190
802350991512,2cyclictest60350irq/132-enp0s29f1:rx-012:00:170
802350991512,2cyclictest60350irq/132-enp0s29f1:rx-012:00:170
802350991512,2cyclictest60350irq/132-enp0s29f1:rx-010:41:100
802360991410,3cyclictest911988-21kworker/u8:0+events_unbound12:09:393
802360991410,3cyclictest509-21rs:main3
802360991410,3cyclictest335557-21systemd-journal11:58:373
802358991411,3cyclictest954424-21kworker/u8:1+events_unbound11:58:252
802358991411,1cyclictest0-21swapper/210:55:002
80235399149,4cyclictest932889-21ntpq11:30:211
80235399148,4cyclictest808343-21cron07:55:001
80235399148,4cyclictest335557-21systemd-journal07:15:001
802353991411,2cyclictest880922-21kworker/u8:2+flush-259:011:00:231
802353991411,2cyclictest807977-21kworker/u8:1+flush-259:008:03:331
802353991410,3cyclictest808609-21kworker/u8:0+events_unbound07:58:031
802353991410,3cyclictest807977-21kworker/u8:1+events_unbound09:33:111
802350991413,1cyclictest60350irq/132-enp0s29f1:rx-012:33:470
802350991413,1cyclictest60350irq/132-enp0s29f1:rx-009:31:580
802350991412,1cyclictest60350irq/132-enp0s29f1:rx-010:45:100
802350991412,1cyclictest60350irq/132-enp0s29f1:rx-009:28:130
802350991412,1cyclictest60350irq/132-enp0s29f1:rx-008:50:280
802350991412,1cyclictest60350irq/132-enp0s29f1:rx-008:40:010
802350991412,1cyclictest60350irq/132-enp0s29f1:rx-007:32:220
80236099139,3cyclictest970660-21kworker/u8:4+flush-259:012:10:143
80236099139,3cyclictest859775-21kworker/u8:0+flush-259:010:55:313
802360991311,1cyclictest0-21swapper/311:10:163
802360991310,2cyclictest821780-21kworker/u8:3+flush-259:010:30:163
80235899139,3cyclictest807977-21kworker/u8:1+flush-259:009:55:262
80235899139,3cyclictest801665-21kworker/u8:2+flush-259:007:15:002
80235899137,4cyclictest815260-21latency_hist08:50:012
802358991311,1cyclictest0-21swapper/208:25:002
802358991310,2cyclictest953943-21unixbench_multi11:50:242
802358991310,1cyclictest0-21swapper/210:05:002
802358991310,1cyclictest0-21swapper/210:04:592
80235399139,3cyclictest911988-21kworker/u8:0+flush-259:011:48:381
80235399139,3cyclictest807977-21kworker/u8:1+events_unbound10:13:231
802353991310,2cyclictest911988-21kworker/u8:0+flush-259:011:35:161
802350991312,1cyclictest60350irq/132-enp0s29f1:rx-008:45:260
802350991311,1cyclictest60350irq/132-enp0s29f1:rx-011:51:010
802350991310,2cyclictest807977-21kworker/u8:1+flush-259:010:15:240
802350991310,2cyclictest60350irq/132-enp0s29f1:rx-011:20:120
80236099129,2cyclictest911988-21kworker/u8:0+flush-259:012:25:443
80236099129,2cyclictest807977-21kworker/u8:1+flush-259:009:40:303
80236099129,2cyclictest803180-21kworker/u8:1+events_unbound07:20:003
80236099128,3cyclictest807977-21kworker/u8:1+flush-259:009:53:143
80236099127,4cyclictest808357-21latency_hist07:55:003
80236099127,3cyclictest938013-21ntp_kernel_err11:35:203
802360991210,1cyclictest0-21swapper/311:20:013
80236099120,4cyclictest802271-21latency_hist07:10:003
80235899129,2cyclictest839552-21fschecks_count10:05:162
80235899129,2cyclictest839552-21fschecks_count10:05:152
80235899122,5cyclictest814640-21munin-run08:45:012
802358991210,1cyclictest0-21swapper/212:15:002
80235399129,2cyclictest996112-21kworker/u8:2+flush-259:012:35:141
80235399129,2cyclictest807977-21kworker/u8:1+flush-259:009:00:471
80235399127,4cyclictest810865-21latency_hist08:15:011
80235399120,11cyclictest807742-21idleruntime-cro07:50:011
80235399120,11cyclictest807742-21idleruntime-cro07:50:001
80235099129,1cyclictest811506-21grep08:20:000
802350991211,1cyclictest60350irq/132-enp0s29f1:rx-008:08:560
80236099119,1cyclictest814641-21munin-plugin-st08:45:013
80236099118,2cyclictest802299-21kworker/u8:4+flush-259:007:35:423
80236099118,2cyclictest0-21swapper/309:29:593
80236099117,3cyclictest1000658-21cat12:35:233
80235899119,1cyclictest0-21swapper/207:55:002
80235899115,4cyclictest1-21systemd09:14:592
80235899110,9cyclictest816514-21awk09:00:002
80235399119,1cyclictest0-21swapper/109:10:011
80235399115,4cyclictest335557-21systemd-journal09:29:591
80235099119,1cyclictest60350irq/132-enp0s29f1:rx-009:23:540
802350991110,1cyclictest60350irq/132-enp0s29f1:rx-008:32:430
80236099108,1cyclictest0-21swapper/309:20:003
80236099108,1cyclictest0-21swapper/308:00:003
80236099107,2cyclictest819902-21kworker/u8:2+flush-259:009:25:003
80236099107,2cyclictest807977-21kworker/u8:1+flush-259:009:48:483
80236099106,3cyclictest807977-21kworker/u8:1+flush-259:008:31:013
80236099106,2cyclictest0-21swapper/307:50:013
80236099106,2cyclictest0-21swapper/307:50:003
80235899108,1cyclictest0-21swapper/212:25:172
80235899108,1cyclictest0-21swapper/211:35:182
80235899107,2cyclictest939462-21fschecks_time11:40:142
80235899105,3cyclictest822369-21cron09:40:002
80235899103,3cyclictest823025-21basename09:44:592
80235899100,2cyclictest811502-21latency_hist08:20:002
80235399108,1cyclictest0-21swapper/110:00:161
80235399108,1cyclictest0-21swapper/110:00:151
80235399106,3cyclictest802299-21kworker/u8:4+flush-259:007:17:311
80235399101,6cyclictest814008-21turbostat.cron08:40:011
80235099108,1cyclictest60350irq/132-enp0s29f1:rx-008:00:280
8023589997,1cyclictest0-21swapper/211:20:162
8023589995,3cyclictest335557-21systemd-journal09:05:022
8023589994,3cyclictest810236-21awk08:10:002
8023539997,1cyclictest0-21swapper/108:28:051
8023539995,3cyclictest813006-21kworker/u8:3+flush-259:008:40:361
8023539995,3cyclictest335557-21systemd-journal08:50:001
8023539991,6cyclictest807093-21cron07:45:001
8023539991,6cyclictest802271-21latency_hist07:10:001
8023509997,1cyclictest0-21swapper/007:15:000
8023609986,1cyclictest0-21swapper/307:17:003
8023589986,1cyclictest0-21swapper/207:50:002
8023589986,1cyclictest0-21swapper/207:50:002
8023589985,2cyclictest821761-21latency_hist09:35:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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