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2025-11-28 - 12:12

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, 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.
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 rack8slot7s.osadl.org (updated Fri Nov 28, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30621992019,1cyclictest55650irq/125-lan21:49:261
30621992018,1cyclictest55650irq/125-lan23:55:121
30621991918,1cyclictest55650irq/125-lan23:48:151
30621991918,1cyclictest55650irq/125-lan23:41:331
30621991918,1cyclictest55650irq/125-lan23:26:461
30621991918,1cyclictest55650irq/125-lan23:18:061
30621991918,1cyclictest55650irq/125-lan22:30:151
30621991918,1cyclictest55650irq/125-lan21:42:391
30621991918,1cyclictest55650irq/125-lan21:34:211
30621991918,1cyclictest55650irq/125-lan21:17:161
30621991918,1cyclictest55650irq/125-lan20:25:231
30621991918,1cyclictest55650irq/125-lan19:29:191
30621991918,1cyclictest55650irq/125-lan00:25:491
30621991918,1cyclictest55650irq/125-lan00:20:221
30621991918,1cyclictest55650irq/125-lan00:11:521
30621991918,1cyclictest55650irq/125-lan00:06:311
30621991917,1cyclictest55650irq/125-lan22:51:411
30621991917,1cyclictest55650irq/125-lan22:18:011
30621991917,1cyclictest55650irq/125-lan21:35:201
30621991916,1cyclictest55650irq/125-lan23:10:171
30621991818,0cyclictest55650irq/125-lan23:20:181
30621991818,0cyclictest55650irq/125-lan22:39:361
30621991818,0cyclictest55650irq/125-lan21:57:231
30621991818,0cyclictest55650irq/125-lan21:12:311
30621991818,0cyclictest55650irq/125-lan00:16:031
30621991817,1cyclictest55650irq/125-lan23:35:171
30621991817,1cyclictest55650irq/125-lan23:30:081
30621991817,1cyclictest55650irq/125-lan23:05:261
30621991817,1cyclictest55650irq/125-lan22:55:401
30621991817,1cyclictest55650irq/125-lan22:40:131
30621991817,1cyclictest55650irq/125-lan22:27:051
30621991817,1cyclictest55650irq/125-lan22:24:561
30621991817,1cyclictest55650irq/125-lan22:05:331
30621991817,1cyclictest55650irq/125-lan22:00:211
30621991817,1cyclictest55650irq/125-lan21:25:241
30621991817,1cyclictest55650irq/125-lan21:05:051
30621991817,1cyclictest55650irq/125-lan20:30:281
30621991817,1cyclictest55650irq/125-lan00:35:371
30621991817,1cyclictest55650irq/125-lan00:33:491
30621991817,1cyclictest55650irq/125-lan00:01:101
30621991816,1cyclictest55650irq/125-lan21:20:191
30621991815,2cyclictest55650irq/125-lan21:50:141
30621991717,0cyclictest55650irq/125-lan23:00:231
30621991717,0cyclictest55650irq/125-lan22:46:001
30621991717,0cyclictest55650irq/125-lan20:11:551
30621991717,0cyclictest55650irq/125-lan20:04:321
30621991717,0cyclictest55650irq/125-lan19:13:331
30621991716,1cyclictest55650irq/125-lan23:50:191
30621991716,1cyclictest55650irq/125-lan20:53:161
30621991716,1cyclictest55650irq/125-lan20:35:001
30621991716,1cyclictest55650irq/125-lan20:17:231
30621991716,1cyclictest55650irq/125-lan20:08:131
30621991716,1cyclictest55650irq/125-lan19:15:211
30621991715,1cyclictest55650irq/125-lan22:10:211
30617991717,0cyclictest703-21snmpd19:24:190
30621991615,1cyclictest55650irq/125-lan21:04:401
30621991615,1cyclictest55650irq/125-lan20:41:151
30621991615,1cyclictest55650irq/125-lan19:45:521
30621991615,1cyclictest55650irq/125-lan19:41:091
30621991615,1cyclictest55650irq/125-lan19:35:381
30621991615,1cyclictest55650irq/125-lan19:30:461
30621991514,1cyclictest55650irq/125-lan20:46:591
30621991514,1cyclictest55650irq/125-lan19:55:151
30621991514,1cyclictest55650irq/125-lan19:22:311
30617991515,0cyclictest294-21hwrng20:25:240
30621991413,1cyclictest55650irq/125-lan20:20:201
30621991413,1cyclictest55650irq/125-lan19:52:421
30617991414,0cyclictest294-21hwrng22:57:590
30617991414,0cyclictest294-21hwrng00:33:120
30621991312,1cyclictest55650irq/125-lan20:56:441
30617991313,0cyclictest294-21hwrng22:39:320
30617991212,0cyclictest294-21hwrng23:50:110
30617991212,0cyclictest294-21hwrng21:18:380
30617991111,0cyclictest294-21hwrng21:49:220
30617991111,0cyclictest294-21hwrng21:37:040
30617991111,0cyclictest294-21hwrng20:17:120
30617991111,0cyclictest294-21hwrng00:13:460
30617991110,1cyclictest20377-21sh23:59:590
3061799109,1cyclictest709-21runrttasks22:00:570
306179999,0cyclictest294-21hwrng23:01:020
306179999,0cyclictest294-21hwrng22:54:540
306179999,0cyclictest294-21hwrng00:18:530
306179998,1cyclictest703-21snmpd19:46:500
306179998,1cyclictest703-21snmpd19:34:020
306179998,0cyclictest703-21snmpd21:51:010
306179997,1cyclictest703-21snmpd20:01:050
306179997,1cyclictest703-21snmpd19:28:580
306179996,3cyclictest703-21snmpd23:37:370
306179996,3cyclictest703-21snmpd22:49:490
306179996,2cyclictest703-21snmpd21:56:520
306179996,2cyclictest703-21snmpd21:30:490
306179996,2cyclictest703-21snmpd20:30:500
306179995,3cyclictest703-21snmpd21:06:060
306179988,0cyclictest294-21hwrng23:34:510
306179988,0cyclictest294-21hwrng23:15:230
306179988,0cyclictest294-21hwrng23:10:150
306179988,0cyclictest294-21hwrng22:21:060
306179988,0cyclictest294-21hwrng21:24:470
306179988,0cyclictest294-21hwrng20:36:390
306179988,0cyclictest294-21hwrng19:15:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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