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2026-08-06 - 01:27

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackbslot5s.osadl.org (updated Wed Aug 05, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
888711995136,11cyclictest121ktimers/012:05:110
888711994741,4cyclictest955808-21kworker/u8:1+events_unbound12:33:450
888724994538,4cyclictest904958-21grep09:10:013
888716994515,8cyclictest231ktimers/112:30:141
888716994514,4cyclictest0-21swapper/109:05:021
888724994435,5cyclictest949164-21audit_send_reply11:40:003
888716994416,3cyclictest0-21swapper/111:40:171
888716994415,3cyclictest0-21swapper/110:59:341
888716994415,3cyclictest0-21swapper/110:59:341
888711994437,5cyclictest898854-21kworker/u8:2+events_unbound08:23:080
888711994437,5cyclictest898854-21kworker/u8:2+events_unbound08:23:070
888716994335,5cyclictest898475-21sendmail08:20:001
888716994314,3cyclictest0-21swapper/111:50:191
888724994235,4cyclictest923854-21munin-plugin-st10:30:003
888711994135,4cyclictest955808-21kworker/u8:1+events_unbound12:18:430
888711994134,4cyclictest894277-21audit_send_reply07:50:010
888724994030,7cyclictest969723-21munin-plugin-st12:39:593
888724994020,12cyclictest946970-21kworker/u8:1+events_unbound11:42:123
888716994033,4cyclictest900973-21munin-plugin-st08:40:021
888716994016,3cyclictest0-21swapper/112:05:231
888716994013,4cyclictest940218-21latency_hist11:15:021
88871699401,14cyclictest913412-21awk10:00:011
888724993933,4cyclictest892659-21kworker/u8:1+events_unbound07:48:033
888724993932,3cyclictest0-21swapper/311:20:163
888716993930,5cyclictest0-21swapper/112:20:001
888716993928,7cyclictest964152-21grep12:20:241
888716993912,5cyclictest0-21swapper/111:00:251
888716993912,3cyclictest0-21swapper/109:50:011
888711993912,5cyclictest131rcu_preempt12:10:110
88871699382,13cyclictest901595-21cron08:45:011
888711993831,4cyclictest945547-21auditctl11:30:010
888724993729,4cyclictest0-21swapper/311:00:153
88872499371,6cyclictest0-21swapper/310:15:123
888716993726,8cyclictest920429-21munin-run10:20:001
888716993715,4cyclictest909346-21sh09:45:001
888711993723,12cyclictest915260-21kworker/u8:2+events_unbound10:15:220
888719993629,5cyclictest897520-21kworker/u8:0+events_unbound08:13:072
888716993610,5cyclictest904961-21idleruntime-cro09:10:021
888711993630,4cyclictest934297-21getprofile10:59:050
888711993630,4cyclictest934297-21getprofile10:59:050
888711993616,12cyclictest956208-21latency_hist12:00:010
888719993528,3cyclictest0-21swapper/209:55:012
888716993527,4cyclictest0-21swapper/112:38:461
888716993514,3cyclictest0-21swapper/108:35:011
888711993523,8cyclictest965853-21grep12:25:240
888724993426,4cyclictest0-21swapper/310:13:223
888724993426,4cyclictest0-21swapper/309:25:003
888724993424,5cyclictest0-21swapper/307:40:003
888716993426,4cyclictest0-21swapper/110:05:001
888724993326,4cyclictest438-21cron12:00:013
888724993323,7cyclictest904327-21auditctl09:05:013
888724993317,6cyclictest901571-21kworker/u8:1+events_unbound08:48:543
888724993317,5cyclictest920197-21kworker/u8:3+events_unbound10:43:333
888719993327,4cyclictest912977-21unixbench_singl09:55:292
888719993326,3cyclictest0-21swapper/210:25:152
888716993322,7cyclictest0-21swapper/109:15:001
888711993325,5cyclictest0-21swapper/012:05:000
88871199330,5cyclictest131rcu_preempt09:55:130
888724993223,4cyclictest0-21swapper/308:20:003
888719993222,6cyclictest957301-21grep12:00:292
888719993222,6cyclictest0-21swapper/211:55:002
888716993224,5cyclictest927250-21munin-plugin-st10:40:001
888716993223,4cyclictest0-21swapper/110:15:001
888711993224,4cyclictest908732-21sendmail09:40:010
888711993223,5cyclictest0-21swapper/011:33:320
888711993221,7cyclictest0-21swapper/007:15:010
888724993125,4cyclictest938207-21kworker/u8:0+events_unbound11:08:323
888724993121,7cyclictest964619-21audit_send_reply12:25:013
888719993124,4cyclictest894275-21sh07:50:002
888719993122,6cyclictest0-21swapper/211:20:002
888719993121,7cyclictest951290-21tune2fs11:45:162
888719993120,6cyclictest0-21swapper/208:10:022
888716993122,5cyclictest0-21swapper/111:30:161
888716993121,7cyclictest0-21swapper/108:30:001
888711993124,5cyclictest948998-21kworker/u8:0+events_unbound12:22:370
888724993023,5cyclictest930628-21kworker/u8:1+events_unbound10:59:183
888724993023,5cyclictest930628-21kworker/u8:1+events_unbound10:59:173
888724993023,4cyclictest0-21swapper/312:25:243
888724993022,4cyclictest0-21swapper/310:50:273
888724993020,7cyclictest438-21cron12:20:013
888724993016,5cyclictest920197-21kworker/u8:3+events_unbound10:24:163
888724993015,6cyclictest909059-21kworker/u8:0+events_unbound09:42:453
88871999309,3cyclictest969726-21cron12:39:592
88871999302,4cyclictest131rcu_preempt10:15:132
888719993022,5cyclictest0-21swapper/208:00:022
888719993022,4cyclictest0-21swapper/210:00:262
888716993018,7cyclictest0-21swapper/107:20:011
888711993020,7cyclictest13550irq/42-30be0000.ethernet10:30:140
888711993019,6cyclictest0-21swapper/008:00:010
888711993018,8cyclictest949194-21basename11:40:000
888711993018,5cyclictest895715-21kworker/u8:2+events_unbound08:07:550
88872499299,6cyclictest890892-21kworker/u8:2+events_unbound07:26:463
888724992923,4cyclictest955808-21kworker/u8:1+events_unbound12:12:423
888724992921,4cyclictest0-21swapper/310:35:283
888724992919,7cyclictest956300-21/usr/sbin/munin12:00:283
888724992915,6cyclictest131rcu_preempt08:10:013
88871999298,14cyclictest941939-21kworker/u8:2+events_unbound11:28:552
888719992920,6cyclictest966686-21fschecks_count12:30:162
888719992920,6cyclictest0-21swapper/210:40:002
888716992922,4cyclictest891765-21kthreadd07:30:001
888716992918,7cyclictest0-21swapper/110:30:261
888711992922,5cyclictest920197-21kworker/u8:3+events_unbound10:42:070
888711992922,4cyclictest927280-21idleruntime-cro10:40:010
888711992921,6cyclictest907769-21kworker/u8:0+events_unbound09:33:150
88872499285,20cyclictest908865-21latency_hist09:40:013
88872499284,11cyclictest40-21ksoftirqd/309:31:103
888724992821,5cyclictest941939-21kworker/u8:2+events_unbound11:25:193
888724992819,7cyclictest959476-21cron12:10:003
888724992810,6cyclictest895715-21kworker/u8:2+events_unbound08:01:073
88872499280,6cyclictest0-21swapper/309:50:083
888719992822,4cyclictest901571-21kworker/u8:1+events_unbound08:45:412
888719992820,4cyclictest0-21swapper/212:15:262
888711992822,4cyclictest890193-21kworker/u8:1+events_unbound07:18:010
888711992821,4cyclictest899723-21latency_hist08:30:000
888711992820,5cyclictest903481-21sendmail09:00:000
888711992817,7cyclictest0-21swapper/008:05:000
888711992813,7cyclictest902210-21kworker/u8:0+events_unbound08:52:380
88871199281,16cyclictest0-21swapper/011:43:000
888724992720,5cyclictest955808-21kworker/u8:1+events_unbound12:30:143
888724992720,5cyclictest900894-21kworker/u8:2+events_unbound08:53:143
88872499271,13cyclictest0-21swapper/308:38:223
88872499271,13cyclictest0-21swapper/307:34:373
88872499271,12cyclictest0-21swapper/309:25:183
88872499271,12cyclictest0-21swapper/308:55:023
88872499271,12cyclictest0-21swapper/307:50:463
888719992720,5cyclictest938207-21kworker/u8:0+events_unbound11:30:422
888719992717,6cyclictest0-21swapper/211:00:252
888719992715,9cyclictest311ktimers/211:05:132
888716992718,5cyclictest0-21swapper/110:40:271
888716992716,6cyclictest0-21swapper/109:00:011
88871199279,5cyclictest890892-21kworker/u8:2+events_unbound07:25:170
888711992721,3cyclictest0-21swapper/012:35:260
888711992719,6cyclictest948998-21kworker/u8:0+events_unbound11:46:510
888711992717,6cyclictest928913-21kworker/u8:0+events_unbound10:48:290
888711992711,10cyclictest131rcu_preempt09:21:320
888724992620,4cyclictest914381-21ntpq10:00:213
888724992620,3cyclictest0-21swapper/309:55:173
888724992619,5cyclictest888943-21kworker/u8:2+events_unbound07:15:023
888724992616,7cyclictest906224-21sendmail09:20:013
88871999269,9cyclictest964429-21kworker/u8:2+events_unbound12:23:292
888719992620,4cyclictest921952-21kworker/u8:1+events_unbound10:24:422
888719992619,5cyclictest946970-21kworker/u8:1+events_unbound11:38:362
888719992619,4cyclictest0-21swapper/212:25:162
888719992618,5cyclictest0-21swapper/211:00:002
888719992618,5cyclictest0-21swapper/211:00:002
888719992618,4cyclictest0-21swapper/207:15:012
888719992617,6cyclictest0-21swapper/208:05:012
888716992619,4cyclictest921683-21unixbench_multi10:20:271
888716992618,4cyclictest0-21swapper/108:25:001
888716992618,4cyclictest0-21swapper/108:25:001
88871199267,4cyclictest0-21swapper/008:46:010
88871199266,4cyclictest892659-21kworker/u8:1+events_unbound07:42:300
888711992620,4cyclictest908405-21kworker/u8:1+events_unbound10:03:210
888711992618,5cyclictest909753-21kworker/u8:2+events_unbound09:53:180
888711992615,5cyclictest897520-21kworker/u8:0+events_unbound08:18:410
888711992612,5cyclictest932580-21kworker/u8:0+events_unbound11:00:100
888724992518,5cyclictest897520-21kworker/u8:0+events_unbound08:20:493
888724992518,5cyclictest897520-21kworker/u8:0+events_unbound08:20:493
888724992517,5cyclictest900332-21cron08:35:003
888724992516,6cyclictest924883-21grep10:30:263
888724992515,7cyclictest947289-21seq11:35:013
88872499251,13cyclictest0-21swapper/308:41:103
88872499251,13cyclictest0-21swapper/307:57:093
88872499251,13cyclictest0-21swapper/307:23:103
88872499251,12cyclictest0-21swapper/307:43:513
88872499251,11cyclictest0-21swapper/309:45:113
88871999258,8cyclictest131rcu_preempt08:38:442
88871999252,11cyclictest0-21swapper/207:44:322
888719992519,3cyclictest0-21swapper/210:55:002
888719992518,5cyclictest938207-21kworker/u8:0+events_unbound11:10:482
888719992514,8cyclictest917672-21cat10:10:182
888719992512,4cyclictest948998-21kworker/u8:0+events_unbound11:59:482
88871999251,13cyclictest0-21swapper/209:27:012
888719992510,4cyclictest900894-21kworker/u8:2+events_unbound08:55:082
888716992517,4cyclictest0-21swapper/109:20:001
888716992515,7cyclictest923366-21grep10:25:251
88871199259,5cyclictest11-21ksoftirqd/010:05:190
888711992518,5cyclictest938207-21kworker/u8:0+events_unbound11:21:430
888711992516,6cyclictest0-21swapper/007:40:000
88871199251,20cyclictest0-21swapper/008:32:400
888724992418,4cyclictest897520-21kworker/u8:0+events_unbound08:12:483
888724992417,5cyclictest938207-21kworker/u8:0+events_unbound11:10:463
888724992417,3cyclictest0-21swapper/310:45:193
888724992412,4cyclictest946970-21kworker/u8:1+events_unbound11:48:473
88871999249,11cyclictest311ktimers/209:50:012
88871999247,10cyclictest131rcu_preempt12:05:262
888719992417,3cyclictest0-21swapper/211:40:162
888719992417,3cyclictest0-21swapper/210:35:002
888719992415,6cyclictest0-21swapper/209:25:012
888716992416,5cyclictest0-21swapper/112:00:171
888716992414,7cyclictest902064-21seq08:48:071
88871199247,10cyclictest11-21ksoftirqd/011:15:230
88871199246,12cyclictest881807-21kworker/0:2+events07:54:550
888711992418,4cyclictest904613-21kworker/u8:2+events_unbound09:29:480
888711992417,3cyclictest0-21swapper/009:15:100
888711992417,3cyclictest0-21swapper/009:01:240
888711992416,6cyclictest921952-21kworker/u8:1+events_unbound10:25:130
888711992412,3cyclictest131rcu_preempt10:50:230
88871199241,19cyclictest0-21swapper/011:14:440
88871199241,19cyclictest0-21swapper/009:10:420
88871199240,20cyclictest0-21swapper/008:11:190
88872499235,10cyclictest40-21ksoftirqd/310:05:283
888724992317,4cyclictest898854-21kworker/u8:2+events_unbound08:26:283
888724992311,3cyclictest131rcu_preempt11:18:193
88872499231,13cyclictest0-21swapper/307:11:273
88872499231,12cyclictest0-21swapper/309:10:323
88871999237,7cyclictest32-21ksoftirqd/209:12:022
88871999237,6cyclictest908716-21munin-run09:40:002
88871999233,11cyclictest32-21ksoftirqd/209:15:402
888719992317,4cyclictest904613-21kworker/u8:2+events_unbound09:08:492
888719992317,4cyclictest899491-21kworker/u8:0+events_unbound08:28:042
888719992317,3cyclictest0-21swapper/212:15:002
888719992316,4cyclictest0-21swapper/210:40:282
888719992314,7cyclictest899491-21kworker/u8:0+events_unbound08:41:422
888719992314,6cyclictest929190-21seq10:45:102
888719992313,7cyclictest891898-21date07:30:012
888716992317,3cyclictest0-21swapper/108:05:011
888716992316,4cyclictest0-21swapper/109:40:011
888716992313,7cyclictest966321-21idleruntime-cro12:30:001
88871199237,5cyclictest909179-21runrttasks09:43:020
888711992318,3cyclictest936452-21kworker/u8:2-ext4-rsv-conversion11:05:200
888711992316,3cyclictest0-21swapper/009:46:140
888711992315,4cyclictest0-21swapper/010:10:240
88871199231,18cyclictest0-21swapper/008:35:110
88871199231,18cyclictest0-21swapper/007:21:200
88871999227,4cyclictest898163-21kworker/u8:1+events_unbound08:19:572
88871999225,4cyclictest893017-21munin-plugin-st07:40:012
88871999223,9cyclictest32-21ksoftirqd/208:31:242
888719992216,3cyclictest0-21swapper/211:20:162
88871999221,4cyclictest131rcu_preempt09:35:002
888719992214,6cyclictest902210-21kworker/u8:0+events_unbound08:54:062
88871999221,12cyclictest0-21swapper/210:10:012
888716992215,5cyclictest0-21swapper/109:25:011
888716992215,4cyclictest0-21swapper/110:45:161
888716992214,5cyclictest231ktimers/107:10:461
888716992212,6cyclictest0-21swapper/111:20:011
888716992210,8cyclictest204-21dbus-daemon07:53:041
88871199221,3cyclictest0-21swapper/008:42:000
888724992115,4cyclictest952479-21kworker/u8:2+events_unbound11:54:173
888719992115,4cyclictest897520-21kworker/u8:0+events_unbound08:20:472
888719992115,4cyclictest897520-21kworker/u8:0+events_unbound08:20:462
888719992111,5cyclictest892516-21cat07:35:022
88871999211,14cyclictest0-21swapper/209:42:072
88871999211,14cyclictest0-21swapper/207:15:032
888716992114,4cyclictest897194-21latency_hist08:10:021
888716992113,6cyclictest231ktimers/109:50:081
88871699211,17cyclictest942379-21apt-get11:20:121
88871699211,13cyclictest0-21swapper/109:31:431
888711992116,3cyclictest0-21swapper/009:08:020
88871199211,3cyclictest0-21swapper/007:34:320
88871999205,9cyclictest131rcu_preempt09:00:022
88871999202,3cyclictest131rcu_preempt07:25:012
88871699203,13cyclictest891132-21cron07:25:001
88871699202,14cyclictest961177-21cron12:15:011
888716992014,4cyclictest645-21runrttasks11:45:181
888716992014,3cyclictest0-21swapper/109:23:391
88871699201,3cyclictest0-21swapper/107:45:331
888716992013,5cyclictest936452-21kworker/u8:2+events_unbound11:09:161
888716992012,6cyclictest231ktimers/111:55:111
888716992012,5cyclictest231ktimers/107:40:041
888716992011,5cyclictest0-21swapper/111:35:251
888716992010,7cyclictest930990-21ls10:50:161
88871699200,13cyclictest0-21swapper/108:52:251
88871999191,3cyclictest131rcu_preempt07:50:162
888716991913,4cyclictest645-21runrttasks07:30:231
888716991912,5cyclictest231ktimers/110:05:131
888716991912,5cyclictest231ktimers/108:10:031
888716991911,5cyclictest231ktimers/111:25:151
888716991911,4cyclictest0-21swapper/108:00:011
888716991812,3cyclictest645-21runrttasks07:35:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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