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2025-12-27 - 19:42

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 792 highest latencies:
System rack2slot7s.osadl.org (updated Sat Dec 27, 2025 07:55:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1301896995946,8cyclictest2102559-21sh06:09:572
1301896995946,8cyclictest2102559-21sh06:09:572
1301894995644,9cyclictest2101782-21sh06:09:550
1301894995644,9cyclictest2101782-21sh06:09:550
1301895995544,6cyclictest2100657-21wc06:09:521
1301895995544,6cyclictest2100657-21wc06:09:521
1301895995443,8cyclictest1607664-21execl05:49:531
1301896995343,5cyclictest0-21swapper/205:39:472
1301895995345,5cyclictest1554648-21sh05:41:221
1301896995042,5cyclictest1531609-21sh05:40:272
1301896994739,5cyclictest2149109-21multi.sh06:11:482
1301896994739,5cyclictest1488450-21grep05:35:002
1301894994738,6cyclictest1607663-21execl05:49:530
1301894994634,9cyclictest2111645-21sh06:10:200
1301896994537,4cyclictest0-21swapper/205:49:522
1301895994537,5cyclictest2148270-21sh06:11:461
1301894994533,10cyclictest1610454-21munin-run05:55:000
1301895994433,8cyclictest1308042-21ls05:25:001
1301895994334,7cyclictest1609158-21fstime05:51:171
1301895994334,6cyclictest582-21systemd-logind05:40:011
1301894994235,5cyclictest2018138-21Run06:04:530
1301894994229,4cyclictest1547136-21sh05:41:040
1301895994134,4cyclictest0-21swapper/106:40:001
1301896994032,5cyclictest1787677-21spawn06:03:302
1301894994032,6cyclictest1488346-21cron05:35:000
1301894994031,6cyclictest1168-21mta-sts-daemon05:09:480
1301896993929,8cyclictest1612136-21munin-plugin-st06:00:022
1301895993931,5cyclictest1301918-21latency_hist05:05:011
1301894993931,6cyclictest1319-21sendmail-mta05:56:120
1301895993831,4cyclictest1303411-21latency_hist05:10:021
1301895993830,5cyclictest1612449-21Run06:00:501
1301895993828,6cyclictest1167-21mta-sts-daemon06:34:511
1301895993727,6cyclictest582-21systemd-logind06:25:011
1301894993628,5cyclictest1301898-21kworker/u8:0+xprtiod05:15:000
1301896993529,3cyclictest0-21swapper/205:55:012
1301896993529,3cyclictest0-21swapper/205:15:012
1301895993527,5cyclictest1488452-21unixbench_singl05:35:001
1301896993426,5cyclictest576-21polkitd06:34:432
1301896993426,5cyclictest2185592-21cron06:40:002
1301895993425,5cyclictest2179627-21unixbench_multi06:19:551
1301894993428,4cyclictest1525865-21/usr/sbin/munin05:40:010
130189499342,16cyclictest1165-21mta-sts-daemon06:34:470
1301896993328,2cyclictest0-21swapper/205:25:002
1301895993325,5cyclictest812-21cron05:30:001
1301895993325,5cyclictest812-21cron05:30:001
1301895993322,8cyclictest1304794-21munin-run05:15:001
1301894993326,5cyclictest582-21systemd-logind06:25:020
130189499330,29cyclictest1306821-21fstime05:24:490
1301896993125,3cyclictest0-21swapper/205:20:012
1301894993123,4cyclictest0-21swapper/005:29:490
1301894993123,4cyclictest0-21swapper/005:29:490
1301896993022,5cyclictest1-21systemd06:30:012
1301895993024,3cyclictest0-21swapper/105:20:011
1301894993025,3cyclictest1306489-21cron05:20:010
1301894993025,3cyclictest0-21swapper/006:19:470
1301896992921,5cyclictest1295454-21kworker/u8:10-xprtiod06:20:012
1301894992923,4cyclictest0-21swapper/006:40:010
1301894992922,5cyclictest582-21systemd-logind06:30:010
1301896992821,4cyclictest2181207-21cron06:25:012
130189699281,24cyclictest1308736-21pipe05:29:502
130189699281,24cyclictest1308736-21pipe05:29:502
1301895992719,5cyclictest1610697-21Run05:55:121
1301896992620,3cyclictest0-21swapper/205:09:572
1301895992518,3cyclictest0-21swapper/106:30:011
1301894991915,2cyclictest0-21swapper/005:05:010
130189799153,6cyclictest0-21swapper/306:04:483
130189699154,8cyclictest564-21dbus-daemon05:05:012
130189799143,6cyclictest0-21swapper/305:49:493
130189799143,6cyclictest0-21swapper/305:44:473
130189799122,6cyclictest0-21swapper/306:07:173
130189799122,6cyclictest0-21swapper/306:07:173
130189799122,5cyclictest0-21swapper/305:39:473
130189799112,6cyclictest0-21swapper/306:10:283
130189799112,5cyclictest0-21swapper/305:50:463
130189799112,5cyclictest0-21swapper/305:29:523
130189799112,5cyclictest0-21swapper/305:29:523
130189799112,4cyclictest0-21swapper/305:14:543
130189799111,6cyclictest0-21swapper/305:59:463
130189799101,5cyclictest0-21swapper/305:24:493
130189799101,5cyclictest0-21swapper/305:09:483
13018979992,4cyclictest0-21swapper/305:19:493
13018979991,5cyclictest0-21swapper/306:34:413
13018979991,5cyclictest0-21swapper/306:20:253
13018979991,5cyclictest0-21swapper/305:33:523
13018979991,4cyclictest0-21swapper/306:16:033
13018979981,4cyclictest0-21swapper/306:29:373
13018979970,5cyclictest0-21swapper/306:39:423
13018979961,2cyclictest0-21swapper/305:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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