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2025-07-02 - 12:49

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #8

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot8s (updated Wed Jul 02, 2025 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16469032141127,9sleep20-21swapper/219:06:532
16469032141127,9sleep20-21swapper/219:06:532
16469522126112,9sleep60-21swapper/619:07:386
16469522126112,9sleep60-21swapper/619:07:386
16468152126112,9sleep10-21swapper/119:05:401
16468152126112,9sleep10-21swapper/119:05:391
16470772124110,9sleep00-21swapper/019:09:240
16470772124110,9sleep00-21swapper/019:09:230
1646949212294,23sleep30-21swapper/319:07:353
1646949212294,23sleep30-21swapper/319:07:343
16469442121107,9sleep70-21swapper/719:07:317
16469442121107,9sleep70-21swapper/719:07:317
16468562121107,9sleep40-21swapper/419:06:164
16468562121107,9sleep40-21swapper/419:06:154
16470732117103,9sleep50-21swapper/519:09:215
16470732117103,9sleep50-21swapper/519:09:215
1647365991030,100cyclictest0-21swapper/023:13:140
1647385991020,0cyclictest0-21swapper/519:10:155
16473659910299,3cyclictest573-21snmpd23:54:420
16473659910299,3cyclictest573-21snmpd21:15:310
1647365991020,101cyclictest0-21swapper/022:01:020
16473889910199,1cyclictest573-21snmpd23:50:576
1647388991010,100cyclictest0-21swapper/619:58:556
16473859910199,2cyclictest573-21snmpd23:49:305
1647385991010,100cyclictest0-21swapper/523:26:145
1647385991010,100cyclictest0-21swapper/519:30:215
1647382991010,100cyclictest0-21swapper/420:54:004
16473739910199,2cyclictest573-21snmpd23:56:542
16473659910199,2cyclictest573-21snmpd23:47:050
16473659910198,2cyclictest573-21snmpd00:14:260
164736599101100,1cyclictest0-21swapper/020:15:350
1647365991010,99cyclictest0-21swapper/021:40:530
16473889910099,1cyclictest573-21snmpd23:30:266
16473889910099,1cyclictest573-21snmpd22:54:046
16473889910099,1cyclictest573-21snmpd21:34:076
16473889910099,1cyclictest573-21snmpd21:27:016
16473889910099,1cyclictest573-21snmpd20:10:496
16473889910099,1cyclictest1898430-21cat00:05:166
1647388991000,99cyclictest1866240-21sed23:35:206
1647388991000,99cyclictest0-21swapper/623:00:136
1647388991000,99cyclictest0-21swapper/622:41:556
1647388991000,99cyclictest0-21swapper/619:27:306
1647388991000,1cyclictest1663728-21/usr/sbin/munin19:40:186
1647388991000,100cyclictest0-21swapper/623:57:096
1647388991000,100cyclictest0-21swapper/619:36:266
1647388991000,100cyclictest0-21swapper/600:26:066
1647388991000,100cyclictest0-21swapper/600:20:276
1647388991000,100cyclictest0-21swapper/600:02:176
16473859910099,1cyclictest573-21snmpd19:41:245
16473859910099,1cyclictest573-21snmpd00:02:385
16473859910098,2cyclictest573-21snmpd23:17:015
16473859910097,3cyclictest573-21snmpd22:23:005
16473859910097,3cyclictest573-21snmpd20:09:105
1647385991000,99cyclictest0-21swapper/523:22:135
1647385991000,99cyclictest0-21swapper/521:05:095
1647385991000,100cyclictest0-21swapper/521:00:165
1647385991000,100cyclictest0-21swapper/520:04:575
1647385991000,100cyclictest0-21swapper/500:35:105
16473829910099,1cyclictest573-21snmpd22:04:104
16473829910099,1cyclictest573-21snmpd20:35:294
16473829910099,1cyclictest573-21snmpd20:28:174
1647382991000,99cyclictest0-21swapper/423:40:504
1647382991000,99cyclictest0-21swapper/423:40:494
1647382991000,99cyclictest0-21swapper/421:00:334
1647382991000,99cyclictest0-21swapper/420:44:244
1647382991000,99cyclictest0-21swapper/420:11:404
1647382991000,100cyclictest0-21swapper/419:35:164
16473779910099,1cyclictest573-21snmpd23:39:163
16473779910099,1cyclictest573-21snmpd22:06:203
16473779910099,1cyclictest573-21snmpd21:52:083
16473779910099,1cyclictest573-21snmpd21:21:523
16473779910099,1cyclictest573-21snmpd20:18:313
16473779910099,1cyclictest573-21snmpd00:28:373
16473739910099,1cyclictest573-21snmpd21:58:222
16473739910099,1cyclictest573-21snmpd20:56:392
16473739910099,1cyclictest573-21snmpd20:26:022
16473739910099,1cyclictest1783288-21ntpd22:47:272
16473739910099,0cyclictest573-21snmpd22:00:022
16473739910098,1cyclictest573-21snmpd22:08:532
1647373991000,99cyclictest0-21swapper/221:41:142
1647373991000,99cyclictest0-21swapper/200:15:352
16473689910099,1cyclictest573-21snmpd21:17:191
16473689910099,1cyclictest573-21snmpd00:25:371
1647368991000,99cyclictest0-21swapper/122:23:151
1647368991000,99cyclictest0-21swapper/119:39:541
1647368991000,99cyclictest0-21swapper/119:12:081
1647368991000,100cyclictest0-21swapper/119:45:171
16473659910099,1cyclictest573-21snmpd21:11:520
16473659910099,1cyclictest573-21snmpd19:18:510
16473659910098,2cyclictest573-21snmpd21:35:040
16473659910097,3cyclictest573-21snmpd22:41:420
16473659910097,2cyclictest573-21snmpd21:31:550
1647365991000,99cyclictest0-21swapper/023:07:540
1647365991000,99cyclictest0-21swapper/020:35:580
1647365991000,100cyclictest0-21swapper/023:00:520
1647365991000,100cyclictest0-21swapper/021:25:160
1647365991000,100cyclictest0-21swapper/020:48:570
164739399990,99cyclictest0-21swapper/723:57:307
164739399990,99cyclictest0-21swapper/722:47:227
164739399990,99cyclictest0-21swapper/722:02:237
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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