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2025-11-19 - 18:09

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 Wed Nov 19, 2025 12:39:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1535768996449,10cyclictest1632111-21unixbench_singl10:44:242
1535767996354,6cyclictest266-21systemd-journal12:30:011
1535767995645,7cyclictest0-21swapper/111:04:171
1535767995039,7cyclictest1593858-21unixbench_singl09:44:261
1535767994739,5cyclictest1555264-21systemd-run08:15:021
1535766994730,14cyclictest0-21swapper/011:39:170
1535767994636,6cyclictest1671068-21latency_hist11:45:021
153576799453,4cyclictest0-21swapper/107:14:131
153576799453,33cyclictest1696495-21ssh12:24:161
1535766994525,11cyclictest12450irq/32-eth012:39:190
1535768994434,5cyclictest0-21swapper/211:39:182
1535767994436,5cyclictest1603611-21ssh10:00:001
1535767994436,5cyclictest1603611-21ssh10:00:001
1535767994431,10cyclictest1652277-21sh11:15:011
1535767994333,6cyclictest422-21dbus-daemon11:39:161
1535766994226,4cyclictest421-21avahi-daemon10:24:060
1535768994131,7cyclictest1680905-21idleruntime-cro12:00:012
1535767994133,5cyclictest1660356-21fschecks_time11:29:051
1535766994134,4cyclictest0-21swapper/009:39:130
1535768994027,8cyclictest0-21swapper/208:04:192
153576799403,28cyclictest1680135-21ssh11:59:181
1535767994032,5cyclictest1705692-21aten_r2power_vo12:39:031
1535767994032,5cyclictest1614659-21aten_r2power_en10:19:001
1535766994032,5cyclictest738385-21cups-browsed11:09:000
1535766994032,5cyclictest1657539-21ssh11:24:110
1535768993933,3cyclictest0-21swapper/211:15:012
1535768993931,5cyclictest1628999-21munin-run10:40:012
1535768993931,5cyclictest1626038-21latency_hist10:35:032
1535768993930,7cyclictest1590907-21sh09:40:012
1535768993929,6cyclictest738385-21cups-browsed12:31:302
1535767993930,6cyclictest421-21avahi-daemon10:51:371
1535767993929,7cyclictest421-21avahi-daemon10:22:481
1535766993932,3cyclictest0-21swapper/012:19:140
1535766993931,5cyclictest1581594-21systemd-run09:25:020
1535766993926,10cyclictest1677467-21kworker/u8:011:55:020
1535768993829,5cyclictest0-21swapper/212:39:172
1535767993827,7cyclictest266-21systemd-journal09:18:321
1535767993827,6cyclictest1642655-21latency_hist11:00:061
1535768993730,4cyclictest955-21mta-sts-daemon11:09:172
1535768993729,3cyclictest0-21swapper/210:09:122
1535768993726,8cyclictest1578683-21/usr/sbin/munin09:20:022
1535767993728,6cyclictest1557303-21fschecks_count08:24:051
1535767993727,7cyclictest738385-21cups-browsed07:39:161
1535767993717,11cyclictest271ktimers/107:29:291
1535766993730,4cyclictest1690361-21unixbench_multi12:14:250
1535766993730,4cyclictest1690361-21unixbench_multi12:14:250
1535766993729,5cyclictest1632406-21systemd-run10:45:020
1535766993716,14cyclictest12450irq/32-eth009:29:180
1535766993710,25cyclictest151ktimers/010:54:170
1535768993630,3cyclictest0-21swapper/208:35:012
1535768993628,5cyclictest1664820-21munin-plugin-st11:35:012
1535767993629,5cyclictest0-21swapper/112:09:211
1535767993629,5cyclictest0-21swapper/112:09:211
1535767993628,5cyclictest1597299-21systemd-run09:50:021
1535768993528,4cyclictest1603626-21munin-run10:00:002
1535768993528,4cyclictest1603626-21munin-run10:00:002
1535768993526,6cyclictest738385-21cups-browsed11:44:122
1535768993525,8cyclictest453-21systemd-logind07:55:012
1535767993527,5cyclictest1546259-21munin-plugin-st07:45:011
1535767993527,5cyclictest1546259-21munin-plugin-st07:45:011
1535767993527,4cyclictest1621141-21aten_r2power_fr10:29:041
1535767993527,4cyclictest0-21swapper/108:20:011
1535767993524,8cyclictest1553547-21timerwakeupswit08:09:251
1535767993524,7cyclictest1538789-21systemd-run07:20:021
1535766993527,6cyclictest1625562-21unixbench_singl10:34:240
1535766993527,4cyclictest0-21swapper/010:49:150
1535768993427,4cyclictest1540262-21cron07:25:012
1535768993427,3cyclictest0-21swapper/210:55:012
1535768993427,3cyclictest0-21swapper/210:25:012
1535768993427,3cyclictest0-21swapper/209:13:322
1535768993426,5cyclictest1544740-21cron07:40:012
1535768993426,4cyclictest0-21swapper/210:19:242
1535767993427,4cyclictest955-21mta-sts-daemon09:37:571
1535767993425,6cyclictest1627883-21kernelversion10:39:101
1535767993422,8cyclictest1676809-21awk11:54:261
153576799342,23cyclictest1574843-21ssh09:14:181
1535766993428,4cyclictest1628773-21grep10:39:310
1535766993428,4cyclictest1569294-21fschecks_count09:04:070
1535766993428,3cyclictest477-21rs:main0
1535766993427,4cyclictest1621739-21ntp_kernel_pll_10:29:140
1535766993426,3cyclictest0-21swapper/008:29:140
1535768993326,3cyclictest0-21swapper/210:15:012
1535768993326,3cyclictest0-21swapper/208:20:012
1535768993325,5cyclictest1686568-21ssh12:09:102
1535768993325,5cyclictest1686568-21ssh12:09:102
1535767993325,5cyclictest1663323-21aten_r2power_en11:34:001
1535767993325,5cyclictest1583261-21fschecks_time09:29:051
1535767993324,7cyclictest0-21swapper/110:50:031
1535766993326,4cyclictest1645202-21ls11:04:230
1535766993323,7cyclictest1577914-21ssh09:19:110
1535766993322,8cyclictest1612610-21timerwakeupswit10:14:250
153576899323,24cyclictest1605889-21ssh10:04:112
1535768993224,5cyclictest1543170-21tail07:34:282
1535768993222,5cyclictest0-21swapper/212:24:192
1535768993221,8cyclictest461-21thd10:49:172
1535767993226,2cyclictest0-21swapper/112:32:151
1535767993224,5cyclictest1567206-21unixbench_singl08:54:241
1535767993222,7cyclictest1682673-21/usr/sbin/munin12:04:251
1535767993222,7cyclictest1682673-21/usr/sbin/munin12:04:251
1535767993222,6cyclictest0-21swapper/109:54:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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