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2025-12-15 - 03:14

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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 rack0slot1s.osadl.org (updated Mon Dec 15, 2025 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13019999291,1cyclictest0-21swapper/523:50:305
13029999190,1cyclictest0-21swapper/722:42:397
13019997776,1cyclictest0-21swapper/522:32:495
1273126141,17sleep50-21swapper/519:09:055
13008995656,0cyclictest37-21ksoftirqd/300:04:113
1263425635,17sleep40-21swapper/419:07:454
13029995452,1cyclictest0-21swapper/722:53:087
13029995452,1cyclictest0-21swapper/722:53:087
1272225029,18sleep70-21swapper/719:09:007
1249224828,17sleep60-21swapper/619:05:466
1273824613,18sleep30-21swapper/319:09:123
1258423918,17sleep10-21swapper/119:07:011
1255623716,18sleep20-21swapper/219:06:382
13008993636,0cyclictest37-21ksoftirqd/321:31:253
1269523615,18sleep00-21swapper/019:08:370
12987993331,1cyclictest3-21ksoftirqd/023:55:240
13019992726,1cyclictest0-21swapper/520:03:135
1300899210,2cyclictest0-21swapper/322:55:073
1301399181,16cyclictest28764-21munin-run19:40:014
1302599142,11cyclictest0-21swapper/619:56:116
13025991410,3cyclictest0-21swapper/623:05:576
13029991311,2cyclictest0-21swapper/720:30:157
13029991310,2cyclictest0-21swapper/720:11:117
1302599130,12cyclictest0-21swapper/600:28:126
1301999130,1cyclictest0-21swapper/500:00:165
1298799131,9cyclictest0-21swapper/023:10:010
1302599129,2cyclictest0-21swapper/622:12:276
1302599120,1cyclictest0-21swapper/620:04:556
1298799121,10cyclictest0-21swapper/000:05:000
1298799120,6cyclictest0-21swapper/023:35:350
1302999118,2cyclictest27432sleep723:03:127
1301999110,10cyclictest0-21swapper/519:51:475
1301399118,3cyclictest0-21swapper/423:53:424
1301399118,3cyclictest0-21swapper/422:55:424
12991991111,0cyclictest2487-21snmpd19:42:121
1298799118,1cyclictest26230-21latency_hist19:35:000
1298799118,1cyclictest0-21swapper/000:20:150
1298799117,2cyclictest0-21swapper/019:45:220
1298799111,9cyclictest0-21swapper/019:25:000
1298799111,7cyclictest0-21swapper/019:40:000
1298799110,9cyclictest0-21swapper/022:05:000
1298799110,8cyclictest29224-21latency_hist20:45:010
1298799110,8cyclictest0-21swapper/023:55:010
1298799110,8cyclictest0-21swapper/022:50:010
1298799110,8cyclictest0-21swapper/022:50:010
1298799110,8cyclictest0-21swapper/019:30:010
1298799110,8cyclictest0-21swapper/019:15:000
1298799110,7cyclictest1540050cat22:25:000
1298799110,7cyclictest1465650cat21:20:000
1298799110,7cyclictest0-21swapper/020:55:000
1298799110,7cyclictest0-21swapper/020:14:590
1302999107,2cyclictest0-21swapper/700:00:127
1302599107,2cyclictest0-21swapper/620:47:416
1302599102,4cyclictest0-21swapper/621:57:116
1302599101,2cyclictest0-21swapper/619:28:426
1301999100,9cyclictest0-21swapper/519:43:485
1301999100,9cyclictest0-21swapper/500:05:475
1300899101,8cyclictest0-21swapper/322:05:353
13008991010,0cyclictest2487-21snmpd19:20:113
1300099101,8cyclictest0-21swapper/220:45:142
1299199100,9cyclictest0-21swapper/100:30:141
1298799107,2cyclictest0-21swapper/020:20:190
1298799107,1cyclictest0-21swapper/022:10:230
1298799106,2cyclictest0-21swapper/022:40:570
1298799100,9cyclictest0-21swapper/023:35:000
1298799100,9cyclictest0-21swapper/019:15:180
1298799100,8cyclictest0-21swapper/023:18:380
1298799100,8cyclictest0-21swapper/023:15:000
1298799100,8cyclictest0-21swapper/022:34:390
1298799100,8cyclictest0-21swapper/021:45:250
1298799100,8cyclictest0-21swapper/021:25:170
1298799100,8cyclictest0-21swapper/021:10:220
1298799100,8cyclictest0-21swapper/020:00:130
1298799100,7cyclictest24663-21latency_hist21:40:000
1298799100,7cyclictest22146-21latency_hist21:35:000
1298799100,7cyclictest16023-21latency_hist00:34:590
1298799100,7cyclictest0-21swapper/020:05:190
1298799100,7cyclictest0-21swapper/000:40:000
130299993,3cyclictest0-21swapper/723:55:127
130299993,3cyclictest0-21swapper/700:06:567
130299990,2cyclictest0-21swapper/723:36:427
130299990,1cyclictest0-21swapper/721:25:007
130259997,2cyclictest0-21swapper/620:27:416
130259993,4cyclictest0-21swapper/620:31:576
130259993,3cyclictest0-21swapper/600:34:576
130259991,5cyclictest0-21swapper/622:33:426
130259991,5cyclictest0-21swapper/620:38:426
130259991,2cyclictest0-21swapper/623:35:126
130259991,2cyclictest0-21swapper/621:30:426
130259990,8cyclictest0-21swapper/623:25:196
130259990,2cyclictest0-21swapper/621:24:576
130259990,2cyclictest0-21swapper/619:45:426
130199994,4cyclictest0-21swapper/520:28:125
130199993,4cyclictest0-21swapper/520:40:115
130199993,3cyclictest0-21swapper/522:59:265
130199993,3cyclictest0-21swapper/522:05:565
130199993,3cyclictest0-21swapper/521:58:275
130199993,3cyclictest0-21swapper/520:30:125
130199992,4cyclictest0-21swapper/520:35:575
130199990,8cyclictest0-21swapper/523:33:485
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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