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2025-11-08 - 13:46

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 Sat Nov 08, 2025 12:39:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44703399644,54cyclictest619170-21ssh12:22:022
447032995741,10cyclictest0-21swapper/110:09:041
447033995328,22cyclictest493473-21ssh09:25:012
447032995339,11cyclictest509280-21sh09:48:561
447033995140,6cyclictest517019-21proc_pri09:59:112
447032994940,6cyclictest548040-21systemd-run10:45:011
447032994940,6cyclictest548040-21systemd-run10:45:011
44703399472,16cyclictest604989-21awk12:04:052
44703299474,36cyclictest560950-21ssh11:04:051
447033994638,5cyclictest602063-21sh12:00:012
44703399461,38cyclictest553964-21ssh10:54:052
447032994639,3cyclictest0-21swapper/110:55:021
44703399453,32cyclictest540520-21ssh10:34:082
447033994532,8cyclictest616772-21needreboot12:19:012
44703399451,14cyclictest608986-21ntpq12:09:052
447031994533,9cyclictest422-21dbus-daemon11:10:010
447031994515,25cyclictest12450irq/32-eth010:09:060
447033994438,3cyclictest0-21swapper/210:05:012
44703399441,17cyclictest581919-21ntpq11:34:062
44703399441,17cyclictest581919-21ntpq11:34:062
44703399441,12cyclictest464418-21ntpq08:09:052
447032994438,3cyclictest0-21swapper/112:35:011
44703299442,34cyclictest593162-21ssh11:49:081
44703399431,14cyclictest453909-21ntpq07:34:082
44703399431,12cyclictest523846-21ssh10:09:042
44703399431,12cyclictest509860-21ntpq09:49:072
447032994335,5cyclictest468049-21systemd-run08:20:011
44703399422,6cyclictest468943-21ntpq08:24:062
44703399422,5cyclictest547175-21ntpq10:44:112
44703399422,5cyclictest547175-21ntpq10:44:112
44703399422,4cyclictest557557-21ntpq10:59:122
44703399422,4cyclictest463017-21ntpq08:04:102
44703399421,5cyclictest482402-21ntpq09:09:072
44703399421,3cyclictest465992-21ntpq08:14:102
44703399421,3cyclictest465992-21ntpq08:14:102
44703399421,14cyclictest564578-21ntpq11:09:112
44703399421,14cyclictest503101-21ps09:39:152
44703399421,14cyclictest503101-21ps09:39:152
44703399421,11cyclictest527310-21ntpq10:14:062
447032994232,7cyclictest421-21avahi-daemon09:12:031
447031994225,12cyclictest151ktimers/011:44:100
447033994132,5cyclictest579173-21systemd-run11:30:012
447033994132,5cyclictest579173-21systemd-run11:30:012
447033994131,6cyclictest575483-21idleruntime-cro11:25:012
447033994131,6cyclictest575483-21idleruntime-cro11:25:012
447033994131,6cyclictest3736783-21cups-browsed10:21:232
44703399412,6cyclictest449381-21ntpq07:19:002
44703399412,6cyclictest449381-21ntpq07:19:002
447033994126,12cyclictest0-21swapper/212:15:012
447033994126,12cyclictest0-21swapper/212:15:012
44703399412,5cyclictest597021-21ntpq11:54:052
44703399412,5cyclictest585559-21ntpq11:39:052
44703399412,3cyclictest481008-21ntpq09:04:162
447033994120,18cyclictest571687-21sed11:19:212
44703399411,6cyclictest476384-21ntpq08:49:042
44703399411,5cyclictest452528-21ntpq07:29:132
44703399411,12cyclictest467024-21diskstats08:18:582
44703399410,9cyclictest457825-21aten_r2power_en07:48:572
447032994133,4cyclictest0-21swapper/110:49:201
447032994133,4cyclictest0-21swapper/110:49:201
447032994132,6cyclictest588573-21/usr/sbin/munin11:44:071
447032994131,7cyclictest579146-21idleruntime-cro11:30:001
447032994131,7cyclictest579146-21idleruntime-cro11:30:001
447032994130,7cyclictest3736781-21cupsd11:05:431
447031994134,5cyclictest422-21dbus-daemon11:35:010
447031994134,5cyclictest422-21dbus-daemon11:35:010
447031994133,5cyclictest421-21avahi-daemon12:14:100
447031994133,5cyclictest421-21avahi-daemon12:14:100
44703399402,6cyclictest459987-21ntpq07:54:092
44703399402,6cyclictest455404-21ntpq07:39:052
44703399402,5cyclictest485854-21ntpq09:14:062
44703399402,5cyclictest447951-21ntpq07:14:052
44703399402,4cyclictest470418-21ntpq08:29:092
447033994023,12cyclictest559042-21sshd11:01:032
44703399401,8cyclictest461402-21ntpq07:59:072
44703399401,5cyclictest593011-21ntpq11:49:032
44703399401,4cyclictest537227-21ntpq10:29:142
44703399401,4cyclictest530807-21ntpq10:19:082
44703399401,11cyclictest626163-21ssh12:30:092
44703399401,11cyclictest543561-21ntpq10:39:052
44703399401,10cyclictest514169-21ssh09:54:512
447032994034,3cyclictest459033-21kworker/u8:15-rpciod07:59:101
447032994028,9cyclictest604263-21/usr/sbin/munin12:04:021
44703399392,5cyclictest474949-21ntpq08:44:482
44703399392,5cyclictest471898-21ntpq08:34:052
44703399391,9cyclictest631138-21ssh12:37:102
44703399391,9cyclictest623405-21sh12:27:302
44703399391,9cyclictest548318-21sh10:45:152
44703399391,9cyclictest548318-21sh10:45:152
44703399391,9cyclictest494689-21ssh09:27:242
44703399391,6cyclictest473412-21ntpq08:39:052
44703399391,5cyclictest506355-21ntpq09:44:052
44703399391,5cyclictest450968-21ntpq07:24:042
44703399391,10cyclictest498275-21ssh09:33:002
44703399391,10cyclictest498275-21ssh09:33:002
44703399391,10cyclictest487835-21ssh09:17:242
447032993932,4cyclictest483094-21latency_hist09:10:021
447032993931,5cyclictest634032-21cut12:40:031
447032993931,5cyclictest481538-21systemd-run09:05:021
447032993931,5cyclictest0-21swapper/111:54:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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