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2026-08-29 - 23:15

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #7

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.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rackcslot7s.osadl.org (updated Sat Aug 29, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139099850,72rtkit-daemon0-21swapper/307:09:193
5133662740,4sleep23056-21PK-Backend12:25:252
39860727448,16sleep10-21swapper/107:05:131
4350942640,2sleep00-21swapper/008:45:170
39996926243,13sleep00-21swapper/007:09:020
39989926140,14sleep20-21swapper/207:08:072
5144802540,3sleep00-21swapper/012:30:170
4602812500,4sleep342-21ksoftirqd/309:55:223
4488412450,2sleep10-21swapper/109:25:121
4989522440,2sleep30-21swapper/311:45:213
4510422430,3sleep00-21swapper/009:30:120
40022299395,19cyclictest0-21swapper/010:47:420
400232993215,15cyclictest446752-21cron09:20:003
40022299304,8cyclictest446913-21cat09:20:000
40023299290,17cyclictest0-21swapper/309:28:593
40022299264,9cyclictest409247-21taskset07:34:500
40022299264,8cyclictest426857-21taskset08:24:240
40022299263,8cyclictest439469-21taskset08:55:300
5161682250,11sleep342-21ksoftirqd/312:35:173
40023299250,24cyclictest0-21swapper/308:57:043
40023299250,23cyclictest425546-21ls08:20:123
40022299254,9cyclictest406083-21apt07:25:130
40022299254,8cyclictest0-21swapper/012:28:000
40022299253,8cyclictest414432-21taskset07:45:330
139099250,4rtkit-daemon1389-21rtkit-daemon12:38:240
139099250,15rtkit-daemon331rcuc/209:21:152
40023299249,13cyclictest436-20systemd-journal10:45:003
40023299249,13cyclictest0-21swapper/308:30:013
40023299240,23cyclictest0-21swapper/307:50:043
40022299247,7cyclictest433020-21df_inode08:40:150
40022299244,8cyclictest447243-21/usr/sbin/munin09:20:130
40022299244,7cyclictest0-21swapper/012:20:300
400222992418,4cyclictest453078-21memory09:35:180
40023299238,13cyclictest422798-21cut08:10:203
40023299238,13cyclictest1-21systemd07:35:013
400232992318,4cyclictest0-21swapper/312:23:133
400232992315,6cyclictest502333-21awk11:55:193
400232992315,6cyclictest2330-21gdbus11:26:043
40023299231,11cyclictest510013-21cron12:20:003
400232992311,11cyclictest506788-21/usr/sbin/munin12:10:163
40023299230,1cyclictest0-21swapper/309:24:003
400229992320,2cyclictest3056-21PK-Backend09:00:362
400227992317,4cyclictest436-20systemd-journal09:59:551
400227992315,6cyclictest26-21ksoftirqd/107:15:131
40022799231,20cyclictest474784-21/usr/sbin/munin10:40:001
40022799231,20cyclictest459033-21runrttasks09:53:371
40022299235,10cyclictest1095-21runrttasks10:30:260
40022299234,11cyclictest0-21swapper/009:25:260
400222992316,5cyclictest436-20systemd-journal08:10:000
40023299229,12cyclictest466332-21/usr/sbin/munin10:15:123
40023299229,11cyclictest468932-21processes10:20:213
40023299228,13cyclictest437423-21timerwakeupswit08:50:233
40023299228,12cyclictest474270-21timerandwakeup10:35:243
40023299228,12cyclictest457679-21acpi09:50:123
40023299227,13cyclictest442518-21netstat09:05:183
40023299223,17cyclictest495147-21if_err_enp2s011:35:173
40023299221,20cyclictest1-21systemd10:05:013
400232992210,10cyclictest473052-21unin-run10:35:003
400232992210,10cyclictest432381-21idleruntime-cro08:40:003
40023299220,13cyclictest413823-21kernelversion07:45:163
400229992220,1cyclictest3056-21PK-Backend10:26:202
400229992220,1cyclictest3056-21PK-Backend10:02:272
40022999220,20cyclictest3056-21PK-Backend11:40:152
40022999220,20cyclictest3056-21PK-Backend07:34:102
400227992220,1cyclictest0-21swapper/111:14:141
400227992220,1cyclictest0-21swapper/109:37:411
40022799220,21cyclictest0-21swapper/109:44:041
40022799220,21cyclictest0-21swapper/108:43:211
40022799220,10cyclictest4989552processes11:45:201
40022299224,6cyclictest480220-21taskset10:54:290
40022299223,6cyclictest455392-21taskset09:41:180
400222992215,3cyclictest404354-21apt07:20:130
400222992213,5cyclictest506814-21apt12:10:120
139099220,14rtkit-daemon3056-21PK-Backend08:06:022
4927912210,7sleep3411rcuc/311:30:133
40023299218,11cyclictest487211-21latency_hist11:15:003
40023299218,11cyclictest42-21ksoftirqd/307:30:003
400232992119,1cyclictest0-21swapper/312:03:463
400232992119,1cyclictest0-21swapper/310:28:493
400232992119,1cyclictest0-21swapper/309:45:563
400232992119,1cyclictest0-21swapper/308:02:143
40023299211,18cyclictest465964-21chrt10:13:383
40023299211,18cyclictest451424-21needreboot09:30:173
40023299211,18cyclictest440683-21memory09:00:183
40023299211,18cyclictest425185-21perf08:19:593
40023299210,20cyclictest0-21swapper/312:34:083
40023299210,20cyclictest0-21swapper/311:43:313
40023299210,20cyclictest0-21swapper/310:57:223
40023299210,20cyclictest0-21swapper/307:12:253
40023299210,19cyclictest402977-21df07:15:133
400229992119,1cyclictest3056-21PK-Backend11:32:312
400229992119,1cyclictest3056-21PK-Backend11:10:412
400229992119,1cyclictest3056-21PK-Backend10:54:122
400229992119,1cyclictest3056-21PK-Backend09:06:112
400229992119,1cyclictest3056-21PK-Backend07:23:362
400229992118,2cyclictest3056-21PK-Backend12:39:372
400229992118,2cyclictest3056-21PK-Backend10:58:582
400229992118,2cyclictest3056-21PK-Backend08:51:502
40022999210,19cyclictest3056-21PK-Backend12:00:022
40022999210,19cyclictest3056-21PK-Backend11:55:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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