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2025-11-30 - 11:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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.

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 rack2slot7s.osadl.org (updated Sun Nov 30, 2025 00:39:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1622605995438,13cyclictest1690890-21ssh21:55:010
162260599516,22cyclictest1794072-21ssh00:19:190
1622605995037,10cyclictest1669099-21sshd21:24:250
1622606994938,7cyclictest421-21avahi-daemon21:54:101
1622605994820,5cyclictest0-21swapper/019:20:000
1622607994739,5cyclictest1666229-21ssh21:20:012
1622606994738,6cyclictest1-21systemd00:35:011
162260599472,23cyclictest1764960-21ssh23:39:180
162260799463,33cyclictest1693483-21ssh21:59:172
1622607994532,10cyclictest1676837-21cron21:35:012
162260599452,33cyclictest1707607-21ssh22:19:200
1622605994518,18cyclictest12450irq/32-eth022:44:170
1622607994436,5cyclictest1658594-21systemd-run21:10:022
1622605994437,4cyclictest1747701-21ssh23:15:000
1622605994437,4cyclictest1747701-21ssh23:15:000
1622605994437,4cyclictest1680363-21basename21:40:010
1622607994334,6cyclictest1711343-21sh22:24:272
1622606994335,5cyclictest422-21dbus-daemon19:15:011
1622606994334,6cyclictest1794912-21idleruntime-cro00:20:011
1622606994330,10cyclictest1714949-21switchtime22:29:271
1622607994234,5cyclictest1679050-21fschecks_count21:39:102
162260799421,30cyclictest1718254-21ssh22:34:202
1622606994233,5cyclictest1694346-21cron22:00:011
1622606994232,7cyclictest1631578-21/usr/sbin/munin19:40:021
1622606994131,7cyclictest421-21avahi-daemon22:32:121
1622605994134,4cyclictest1773024-21kthreadd23:50:010
1622605994134,4cyclictest1673372-21systemd-run21:30:010
1622605994133,5cyclictest1798179-21sed00:24:360
162260799408,20cyclictest437-21mta-sts-daemon23:34:172
1622607994032,5cyclictest1776668-21cron23:55:012
1622607994030,6cyclictest1797247-21sh00:24:172
1622607994030,6cyclictest1-21systemd19:20:002
1622607994027,9cyclictest1696385-21aten_r2power_fr22:04:092
1622607994026,11cyclictest1783767-21timerandwakeup00:04:342
1622606994033,3cyclictest0-21swapper/122:40:011
1622605994034,4cyclictest1755008-21munin-run23:25:010
1622607993931,5cyclictest1744127-21latency_hist23:10:012
1622607993926,9cyclictest1793577-21sh00:19:102
1622607993925,11cyclictest1771868-21kernelversion23:49:132
162260699393,31cyclictest1700532-21ssh22:09:201
1622606993932,4cyclictest1762248-21rm23:35:011
162260699392,27cyclictest1772125-21ssh23:49:181
1622605993927,8cyclictest421-21avahi-daemon21:44:040
1622605993927,8cyclictest151ktimers/020:14:170
1622605993925,10cyclictest0-21swapper/022:59:310
1622607993830,5cyclictest1643579-21munin-plugin-st20:20:012
1622606993831,4cyclictest1622604-21cyclictest00:24:231
1622606993831,3cyclictest0-21swapper/121:20:011
1622606993830,5cyclictest1658579-21diskmemload00:00:021
1622606993829,6cyclictest1751350-21cron23:20:001
1622606993827,6cyclictest955-21mta-sts-daemon00:14:201
1622605993828,6cyclictest151ktimers/019:44:200
1622605993822,13cyclictest1676843-21sh21:35:010
1622607993730,3cyclictest0-21swapper/200:00:032
162260799371,29cyclictest1757874-21ssh23:29:252
1622606993730,4cyclictest1740563-21kworker/u8:14-xprtiod23:09:121
1622606993729,5cyclictest453-21systemd-logind19:25:021
1622606993729,5cyclictest0-21swapper/121:50:011
1622606993729,4cyclictest956-21mta-sts-daemon19:19:181
1622606993729,4cyclictest1643622-21systemd20:20:021
1622606993728,6cyclictest422-21dbus-daemon23:45:011
1622606993728,6cyclictest1676846-21cron21:35:011
1622606993723,10cyclictest1662589-21debian-sa121:15:011
1622605993730,5cyclictest1692785-21aten_r2power_cu21:59:060
1622605993730,4cyclictest1791334-21cron00:15:010
1622605993729,4cyclictest0-21swapper/022:39:160
1622607993619,7cyclictest171rcu_preempt23:35:282
1622607993616,9cyclictest1705450-21ssh22:15:442
1622606993627,5cyclictest956-21mta-sts-daemon00:35:481
1622606993626,6cyclictest421-21avahi-daemon00:06:281
1622606993625,8cyclictest1622609-21sh19:10:011
1622606993625,8cyclictest1622609-21sh19:10:011
1622606993621,11cyclictest437-21mta-sts-daemon22:59:251
1622605993628,5cyclictest959-21mta-sts-daemon00:38:550
1622605993628,5cyclictest1769486-21cron23:45:010
1622605993628,5cyclictest1662671-21latency_hist21:15:030
1622605993627,6cyclictest959-21mta-sts-daemon22:32:070
1622605993627,6cyclictest1780552-21cups-browsed00:25:480
1622605993622,11cyclictest1643478-21unixbench_multi20:19:280
1622605993620,13cyclictest1687039-21unixbench-2d21:49:300
1622607993529,3cyclictest0-21swapper/200:40:012
1622607993528,5cyclictest1622604-21cyclictest00:14:202
1622607993527,5cyclictest1629139-21uniq19:34:122
1622607993525,7cyclictest422-21dbus-daemon21:14:112
1622607993525,7cyclictest1642088-21systemd-run20:15:022
1622607993525,6cyclictest955-21mta-sts-daemon23:14:442
1622607993525,6cyclictest955-21mta-sts-daemon23:14:442
1622607993525,5cyclictest0-21swapper/200:34:262
162260799352,25cyclictest422-21dbus-daemon22:54:252
1622606993527,5cyclictest1725679-21unixbench_multi22:44:301
1622606993527,5cyclictest1645161-21latency_hist20:25:021
1622606993527,5cyclictest1639077-21cron20:05:001
1622606993527,3cyclictest0-21swapper/123:39:191
1622606993525,7cyclictest1755023-21systemd-run23:25:011
1622606993514,14cyclictest1732402-21ssh22:54:211
1622605993525,7cyclictest12450irq/32-eth023:54:200
1622605993521,4cyclictest1639620-21fschecks_count20:09:110
1622605993516,13cyclictest12450irq/32-eth023:29:210
1622607993426,4cyclictest0-21swapper/221:24:302
1622606993427,3cyclictest0-21swapper/122:20:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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