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2024-11-25 - 06:56

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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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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.
Unexpectedly long latencies may be caused by SMIs
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 rack3slot6s.osadl.org (updated Mon Nov 25, 2024 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
294252122111,6sleep10-21swapper/119:06:521
29431211896,16sleep20-21swapper/219:06:572
294962116105,6sleep00-21swapper/019:07:470
296172114103,6sleep30-21swapper/319:09:223
198472810,1sleep0101ktimersoftd/021:15:230
65272780,0sleep00-21swapper/022:10:030
130212730,0sleep30-21swapper/323:23:503
242152680,0sleep10-21swapper/123:00:511
180372680,0sleep20-21swapper/200:36:482
68812640,0sleep30-21swapper/322:43:493
2969599360,28cyclictest13943-21ssh21:10:131
29695993110,19cyclictest0-21swapper/122:20:111
198562250,0sleep20-21swapper/200:05:172
145872240,2sleep014590-21fschecks_count23:25:150
29695992316,6cyclictest0-21swapper/122:35:101
137062230,0sleep20-21swapper/223:24:532
2969599221,19cyclictest0-21swapper/121:55:121
2969599221,19cyclictest0-21swapper/100:20:111
29696992117,2cyclictest0-21swapper/222:10:152
2969599211,2cyclictest0-21swapper/123:20:111
2969599210,19cyclictest0-21swapper/121:05:111
29694992116,4cyclictest0-21swapper/000:00:110
2969799200,2cyclictest0-21swapper/322:45:113
2969799200,18cyclictest0-21swapper/321:05:113
2969699201,2cyclictest0-21swapper/223:55:112
29697991914,3cyclictest5929-21ssh00:25:103
29696991714,2cyclictest6805-21kworker/u8:322:44:052
2969699170,2cyclictest0-21swapper/221:10:042
29695991714,2cyclictest28088-21kworker/u8:122:14:051
2969799162,12cyclictest7647-21ssh23:17:563
2969799161,13cyclictest19816-21ssh22:56:303
2969799161,13cyclictest19816-21ssh22:56:303
2969799161,13cyclictest13808-21ssh21:43:423
2969799160,14cyclictest13608-21diskmemload23:02:203
2969799160,14cyclictest0-21swapper/321:50:203
2969699161,3cyclictest0-21swapper/200:00:242
29696991613,2cyclictest19165-21kworker/u8:222:24:032
2969699160,3cyclictest0-21swapper/222:05:522
2969699160,14cyclictest5674-21ssh21:35:112
29695991613,2cyclictest9238-21kworker/u8:123:55:041
2969599161,13cyclictest0-21swapper/123:44:051
57192151,2sleep20-21swapper/219:30:132
2969799151,12cyclictest19520-21grep00:05:143
29697991511,2cyclictest0-21swapper/321:19:013
29697991510,3cyclictest29711-21turbostat20:30:003
29697991510,3cyclictest25642-21ssh21:55:223
29697991510,3cyclictest25240-21ssh23:35:263
2969799150,2cyclictest0-21swapper/321:30:503
2969799150,13cyclictest0-21swapper/322:50:213
29696991512,2cyclictest30045-21kworker/u8:023:06:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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