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2025-12-06 - 14:14

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 Sat Dec 06, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30026992019,1cyclictest55650irq/125-lan20:29:111
30026992018,1cyclictest55650irq/125-lan00:00:511
30026991918,1cyclictest55650irq/125-lan23:53:361
30026991918,1cyclictest55650irq/125-lan23:45:071
30026991918,1cyclictest55650irq/125-lan23:43:551
30026991918,1cyclictest55650irq/125-lan23:35:111
30026991918,1cyclictest55650irq/125-lan23:23:091
30026991918,1cyclictest55650irq/125-lan23:16:321
30026991918,1cyclictest55650irq/125-lan23:00:181
30026991918,1cyclictest55650irq/125-lan22:52:111
30026991918,1cyclictest55650irq/125-lan22:35:451
30026991918,1cyclictest55650irq/125-lan22:26:491
30026991918,1cyclictest55650irq/125-lan22:16:021
30026991918,1cyclictest55650irq/125-lan22:00:151
30026991918,1cyclictest55650irq/125-lan21:44:101
30026991918,1cyclictest55650irq/125-lan21:32:271
30026991918,1cyclictest55650irq/125-lan20:21:301
30026991918,1cyclictest55650irq/125-lan00:21:381
30026991917,1cyclictest55650irq/125-lan21:16:281
30026991917,1cyclictest55650irq/125-lan00:10:451
30026991818,0cyclictest55650irq/125-lan22:55:211
30026991818,0cyclictest55650irq/125-lan22:21:301
30026991818,0cyclictest55650irq/125-lan21:45:511
30026991818,0cyclictest55650irq/125-lan00:18:551
30026991817,1cyclictest55650irq/125-lan23:55:221
30026991817,1cyclictest55650irq/125-lan23:32:361
30026991817,1cyclictest55650irq/125-lan23:26:291
30026991817,1cyclictest55650irq/125-lan23:13:291
30026991817,1cyclictest55650irq/125-lan23:06:421
30026991817,1cyclictest55650irq/125-lan22:47:291
30026991817,1cyclictest55650irq/125-lan22:30:091
30026991817,1cyclictest55650irq/125-lan22:10:211
30026991817,1cyclictest55650irq/125-lan22:05:291
30026991817,1cyclictest55650irq/125-lan21:55:401
30026991817,1cyclictest55650irq/125-lan21:35:251
30026991817,1cyclictest55650irq/125-lan21:25:031
30026991817,1cyclictest55650irq/125-lan21:22:001
30026991817,1cyclictest55650irq/125-lan21:10:151
30026991817,1cyclictest55650irq/125-lan21:06:081
30026991817,1cyclictest55650irq/125-lan20:50:111
30026991817,1cyclictest55650irq/125-lan19:49:191
30026991817,1cyclictest55650irq/125-lan19:26:011
30026991817,1cyclictest55650irq/125-lan19:15:511
30026991816,1cyclictest55650irq/125-lan19:10:141
30026991816,1cyclictest55650irq/125-lan00:34:371
30026991816,1cyclictest55650irq/125-lan00:26:501
30026991717,0cyclictest55650irq/125-lan00:36:011
30026991716,1cyclictest55650irq/125-lan22:40:171
30026991716,1cyclictest55650irq/125-lan21:50:521
30026991716,1cyclictest55650irq/125-lan21:02:011
30026991716,1cyclictest55650irq/125-lan20:58:161
30026991716,1cyclictest55650irq/125-lan20:43:201
30026991716,1cyclictest55650irq/125-lan20:39:201
30026991716,1cyclictest55650irq/125-lan20:10:461
30026991716,1cyclictest55650irq/125-lan19:52:261
30026991716,1cyclictest55650irq/125-lan19:30:221
30026991716,1cyclictest55650irq/125-lan00:05:591
30026991616,0cyclictest55650irq/125-lan20:17:041
30026991616,0cyclictest55650irq/125-lan19:20:231
30026991615,1cyclictest55650irq/125-lan20:31:481
30026991615,1cyclictest55650irq/125-lan20:00:451
30026991615,1cyclictest55650irq/125-lan19:56:101
30026991515,0cyclictest55650irq/125-lan20:07:291
30026991514,1cyclictest55650irq/125-lan19:40:381
30026991514,1cyclictest55650irq/125-lan19:35:181
30024991515,0cyclictest294-21hwrng23:35:270
30024991414,0cyclictest294-21hwrng23:46:430
30024991414,0cyclictest294-21hwrng20:47:300
30026991312,1cyclictest55650irq/125-lan20:46:511
30024991212,0cyclictest294-21hwrng20:58:470
3002499106,3cyclictest703-21snmpd23:03:570
300249998,1cyclictest703-21snmpd21:20:080
300249998,1cyclictest703-21snmpd20:43:580
300249998,1cyclictest703-21snmpd20:15:360
300249998,1cyclictest703-21snmpd00:09:450
300249998,1cyclictest16903-21ntp_offset20:00:190
300249998,1cyclictest13185-21ntp_kernel_pll_22:15:200
300249997,2cyclictest4228-21mailstats19:25:190
300249996,3cyclictest703-21snmpd20:52:220
300249996,2cyclictest703-21snmpd23:28:360
300249996,2cyclictest703-21snmpd22:46:530
300249996,2cyclictest703-21snmpd22:36:470
300249996,2cyclictest703-21snmpd20:23:450
300249996,2cyclictest703-21snmpd19:48:290
300249996,2cyclictest703-21snmpd19:38:560
300249996,2cyclictest703-21snmpd19:32:380
300249995,3cyclictest703-21snmpd22:50:560
300249995,3cyclictest703-21snmpd21:56:090
300249988,0cyclictest703-21snmpd23:10:330
300249988,0cyclictest703-21snmpd21:08:230
300249988,0cyclictest30015-21cyclictest22:40:140
300249988,0cyclictest294-21hwrng21:46:540
300249987,1cyclictest703-21snmpd23:55:410
300249987,1cyclictest703-21snmpd23:42:280
300249987,1cyclictest703-21snmpd23:16:210
300249987,1cyclictest703-21snmpd23:05:570
300249987,1cyclictest703-21snmpd22:14:490
300249987,1cyclictest703-21snmpd21:30:030
300249987,1cyclictest703-21snmpd20:38:400
300249987,1cyclictest703-21snmpd20:10:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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