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2024-10-04 - 01:16

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #6

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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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackaslot6s.osadl.org (updated Thu Feb 04, 2021 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
395527420,3sleep0820-1kworker/0:1H19:05:480
552721380,3chrt21750-1kworker/0:2H21:03:110
221321350,2chrt31767-1kworker/0:3H00:33:570
1509021350,2chrt487-1kworker/0:0H22:44:030
1235621350,5chrt11282-1kworker/0:2H19:34:160
418321340,1chrt2991-1kworker/0:1H21:00:090
768821330,4chrt4283-1kworker/0:2H22:34:580
765621330,2chrt5318-1kworker/0:1H23:57:410
698921330,2chrt6779-1kworker/0:1H21:07:140
550621330,2chrt32702-1kworker/0:1H23:12:180
4740991332,123cyclictest21750-1kworker/0:2H21:15:480
3247521330,2chrt30601-1kworker/0:0H20:42:570
2457521330,2chrt23347-1kworker/0:1H20:17:410
1369421330,4chrt11282-1kworker/0:2H19:37:180
895221320,2chrt7772-1kworker/0:2H19:22:080
568221320,2chrt4610-1kworker/0:2H19:11:010
193021320,2chrt1772-1kworker/0:0H23:50:230
1555521320,2chrt24643-1kworker/0:2H23:25:250
975621310,2chrt8320-1kworker/0:1H22:37:000
2640021310,2chrt23664-1kworker/0:1H21:35:300
2639621310,1chrt24896-1kworker/0:3H20:24:450
2337521310,2chrt16039-1kworker/0:0H23:35:310
3058021300,2chrt21054-1kworker/0:2H22:21:510
2918921300,3chrt28709-1kworker/0:1H20:31:490
2515421300,4chrt24643-1kworker/0:2H22:56:090
2454921300,2chrt21054-1kworker/0:2H22:14:480
1705121300,2chrt16407-1kworker/0:1H22:46:040
1547921300,2chrt24643-1kworker/0:2H23:25:170
867321290,2chrt31614-1kworker/0:1H21:54:390
2437221290,2chrt23664-1kworker/0:1H21:32:290
1081621290,1chrt8278-1kworker/0:0H23:19:210
3077221280,2chrt30601-1kworker/0:0H20:36:520
2858021280,2chrt24229-1kworker/0:2H23:41:340
1913721280,2chrt18278-1kworker/0:2H19:57:300
1611921280,2chrt14879-1kworker/0:2H19:48:260
3251621270,2chrt24229-1kworker/0:2H23:47:370
2313921260,2chrt21750-1kworker/0:2H20:13:390
454621250,2chrt31767-1kworker/0:3H00:36:590
3019521250,1chrt27415-1kworker/0:0H21:40:320
1798521220,3sleep017856-1kworker/0:0H00:11:100
2496721200,2chrt21535-1kworker/0:2H00:20:510
2017721180,2sleep020172-1kworker/0:1H23:31:040
468021150,2chrt27415-1kworker/0:0H21:49:370
1892021070,3sleep013014-1kworker/0:1H22:07:080
2056721040,2sleep019896-1kworker/0:1H20:01:220
761921030,3sleep02455-1kworker/0:0H19:19:100
64221020,4sleep032749-1kworker/0:1H20:47:110
2355521020,4sleep016407-1kworker/0:1H22:54:490
222521020,3sleep01413-1kworker/0:0H20:51:560
1747721020,3sleep016462-1kworker/0:0H19:51:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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