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2026-06-09 - 01:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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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  Intel
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: ondemand
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot4s.osadl.org (updated Mon Jun 08, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1386306995651,4cyclictest1492224-21kworker/u8:0+events_unbound09:40:520
1386306995528,19cyclictest1466528-21needreboot08:25:420
1386306995321,24cyclictest1418050-21latency_hist07:40:010
1386306995033,15cyclictest1696294-21systemd-run12:20:010
1386306995026,18cyclictest1655505-21needreboot11:35:430
1386306995019,23cyclictest1408016-21apt-key07:30:000
1386310994940,7cyclictest1704890-21systemd-journal08:10:011
1386310994939,8cyclictest1441881-21ntpq08:00:441
1386310994939,7cyclictest1704890-21systemd-journal09:15:311
1386310994926,20cyclictest1616598-21apt-get11:00:011
1386310994926,20cyclictest1616598-21apt-get11:00:001
1386306994938,8cyclictest1704890-21systemd-journal08:50:310
1386310994636,8cyclictest1486427-21ntpq08:45:441
1386306994616,20cyclictest0-21swapper/012:21:240
1386306994515,21cyclictest0-21swapper/010:15:330
14298342440,3sleep375-21kworker/3:1-mm_percpu_wq07:50:393
1386310994436,5cyclictest1532025-21latency_hist09:35:011
1386310994433,8cyclictest1570986-21ntpq10:10:431
1386310994424,17cyclictest0-21swapper/112:35:341
1386306994435,6cyclictest1621836-21latency_hist11:05:010
1386310994328,13cyclictest1507105-21awk09:10:001
1386310994326,15cyclictest1582295-21aten2_r5power_v10:25:311
1386310994326,15cyclictest1424053-21irqrtprio07:45:381
1386310994325,16cyclictest1492524-21aten2_r5power_c08:55:331
1386306994332,8cyclictest1686691-21diskstats12:10:360
1386310994230,9cyclictest1491289-21ntpq08:50:431
1386310994220,6cyclictest1596342-21unixbench_multi10:35:501
1386306994225,15cyclictest1507013-21cron09:10:000
1386306994224,15cyclictest1546869-21apt-get09:50:020
138630699421,29cyclictest1471762-21python308:30:490
1386311994128,11cyclictest1522617-21cpuspeed_turbos09:25:322
1386310994132,7cyclictest1403234-21/usr/sbin/munin07:25:431
1386310994126,11cyclictest1704890-21systemd-journal08:35:311
1386310994110,9cyclictest0-21swapper/107:13:311
1386306994130,9cyclictest1402064-21ntpq07:20:430
1386306994130,9cyclictest1402064-21ntpq07:20:430
1386306994127,12cyclictest1622124-21apt-get11:05:320
138630699412,33cyclictest1577429-21diskstats10:20:340
1386306994110,22cyclictest550986-21kworker/0:2+events11:25:330
1386310994031,7cyclictest1704890-21systemd-journal07:20:001
1386310994022,16cyclictest0-21swapper/108:20:371
1386310994020,2cyclictest0-21swapper/107:20:421
1386310994020,2cyclictest0-21swapper/107:20:411
1386310994017,2cyclictest0-21swapper/111:55:421
1386306994030,7cyclictest1447706-21latency_hist08:10:020
1386306994025,13cyclictest1711927-21irqcore12:35:370
13860042404,11sleep10-21swapper/107:08:481
1386310993931,5cyclictest1704890-21systemd-journal12:28:331
1386310993920,3cyclictest1601744-21idleruntime-cro10:44:591
1386310993919,17cyclictest0-21swapper/109:00:481
1386310993918,6cyclictest1704890-21systemd-journal09:52:311
1386310993916,5cyclictest0-21swapper/112:10:521
138630699392,23cyclictest0-21swapper/008:15:300
1386306993918,19cyclictest1641631-21sh11:25:010
1386311993831,5cyclictest1704890-21systemd-journal10:10:002
1386311993828,8cyclictest1408336-21cp07:30:012
1386310993822,14cyclictest1606968-21apt-get10:50:311
138631099382,11cyclictest1635755-21taskset11:15:431
1386310993819,2cyclictest0-21swapper/112:05:321
1386310993817,3cyclictest0-21swapper/111:35:491
1386310993817,3cyclictest0-21swapper/108:10:371
1386310993817,3cyclictest0-21swapper/107:55:411
1386310993815,3cyclictest0-21swapper/107:40:501
138630699382,22cyclictest0-21swapper/012:27:160
1386306993821,15cyclictest1521151-21needreboot09:20:420
1386311993724,10cyclictest1622655-21irqcore11:05:382
1386310993729,6cyclictest1704890-21systemd-journal12:04:341
1386310993721,14cyclictest0-21swapper/109:20:371
1386310993719,2cyclictest0-21swapper/107:30:371
1386310993719,2cyclictest0-21swapper/107:30:361
1386310993717,3cyclictest0-21swapper/109:59:591
1386310993717,2cyclictest0-21swapper/111:20:461
1386310993717,2cyclictest0-21swapper/110:05:361
1386310993716,3cyclictest0-21swapper/109:45:361
1386310993713,7cyclictest1417128-21ntpq07:35:441
138630699379,21cyclictest589-21runrttasks08:22:250
138630699373,18cyclictest1552323-21/usr/sbin/munin09:55:350
1386306993724,12cyclictest1532053-21systemd-run09:35:010
138630699372,23cyclictest0-21swapper/011:51:390
1386306993721,14cyclictest1527047-21awk09:30:000
1386306993719,11cyclictest1704890-21systemd-journal07:55:350
1386306993715,20cyclictest1442433-21unixbench_singl08:00:520
1386311993621,13cyclictest1641258-21unixbench_singl11:20:492
1386311993613,8cyclictest1537644-21fschecks_time09:40:352
138631099368,9cyclictest0-21swapper/109:12:171
1386310993618,2cyclictest0-21swapper/108:30:491
1386310993616,2cyclictest0-21swapper/108:15:321
138630699368,20cyclictest589-21runrttasks10:39:570
138630699365,29cyclictest1658940-21ps11:40:410
138630699362,22cyclictest0-21swapper/007:16:590
1386306993621,14cyclictest401-21dbus-daemon11:00:010
1386306993621,14cyclictest401-21dbus-daemon11:00:010
138630699361,25cyclictest589-21runrttasks09:39:450
1386306993612,21cyclictest1412220-21ntpq07:30:460
1386306993612,21cyclictest1412220-21ntpq07:30:460
138630699360,28cyclictest589-21runrttasks11:31:410
1386311993523,10cyclictest1481923-21unixbench_multi08:40:522
1386311993519,14cyclictest1686756-21fschecks_time12:10:352
1386310993525,7cyclictest1576879-21latency_hist10:20:011
138631099352,13cyclictest1523118-21irqrtprio09:25:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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