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2025-11-14 - 09:23

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 14, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6443991919,0cyclictest55650irq/125-lan23:46:271
6443991918,1cyclictest55650irq/125-lan23:58:531
6443991918,1cyclictest55650irq/125-lan23:35:411
6443991918,1cyclictest55650irq/125-lan23:21:151
6443991918,1cyclictest55650irq/125-lan23:18:261
6443991918,1cyclictest55650irq/125-lan22:50:221
6443991918,1cyclictest55650irq/125-lan22:26:241
6443991918,1cyclictest55650irq/125-lan21:45:141
6443991918,1cyclictest55650irq/125-lan21:25:461
6443991918,1cyclictest55650irq/125-lan21:15:431
6443991918,1cyclictest55650irq/125-lan19:14:181
6443991918,1cyclictest55650irq/125-lan00:38:161
6443991918,1cyclictest55650irq/125-lan00:20:061
6443991918,1cyclictest55650irq/125-lan00:14:561
6443991917,1cyclictest55650irq/125-lan23:04:431
6443991818,0cyclictest55650irq/125-lan22:55:311
6443991818,0cyclictest55650irq/125-lan21:35:101
6443991818,0cyclictest55650irq/125-lan00:00:151
6443991817,1cyclictest55650irq/125-lan23:50:001
6443991817,1cyclictest55650irq/125-lan23:41:351
6443991817,1cyclictest55650irq/125-lan23:30:251
6443991817,1cyclictest55650irq/125-lan23:10:131
6443991817,1cyclictest55650irq/125-lan23:05:241
6443991817,1cyclictest55650irq/125-lan22:46:561
6443991817,1cyclictest55650irq/125-lan22:36:351
6443991817,1cyclictest55650irq/125-lan22:30:201
6443991817,1cyclictest55650irq/125-lan22:20:131
6443991817,1cyclictest55650irq/125-lan22:15:231
6443991817,1cyclictest55650irq/125-lan22:11:101
6443991817,1cyclictest55650irq/125-lan22:05:151
6443991817,1cyclictest55650irq/125-lan21:58:221
6443991817,1cyclictest55650irq/125-lan21:20:091
6443991817,1cyclictest55650irq/125-lan21:11:191
6443991817,1cyclictest55650irq/125-lan20:49:081
6443991817,1cyclictest55650irq/125-lan20:32:451
6443991817,1cyclictest55650irq/125-lan20:27:301
6443991817,1cyclictest55650irq/125-lan19:56:001
6443991817,1cyclictest55650irq/125-lan19:26:291
6443991817,1cyclictest55650irq/125-lan00:30:201
6443991817,1cyclictest55650irq/125-lan00:28:301
6443991817,1cyclictest55650irq/125-lan00:15:191
6443991817,1cyclictest55650irq/125-lan00:07:011
6443991717,0cyclictest55650irq/125-lan20:06:221
6443991716,1cyclictest55650irq/125-lan23:25:021
6443991716,1cyclictest55650irq/125-lan22:40:321
6443991716,1cyclictest55650irq/125-lan22:01:411
6443991716,1cyclictest55650irq/125-lan21:50:071
6443991716,1cyclictest55650irq/125-lan21:41:101
6443991716,1cyclictest55650irq/125-lan21:30:101
6443991716,1cyclictest55650irq/125-lan20:57:161
6443991716,1cyclictest55650irq/125-lan20:19:021
6443991716,1cyclictest55650irq/125-lan20:00:441
6443991716,1cyclictest55650irq/125-lan19:45:161
6443991716,1cyclictest55650irq/125-lan19:19:501
6443991616,0cyclictest55650irq/125-lan21:03:061
6443991616,0cyclictest55650irq/125-lan20:54:471
6443991616,0cyclictest55650irq/125-lan20:43:551
6443991616,0cyclictest55650irq/125-lan19:21:071
6443991615,1cyclictest55650irq/125-lan21:05:151
6443991615,1cyclictest55650irq/125-lan20:35:291
6443991615,1cyclictest55650irq/125-lan20:13:321
6443991615,1cyclictest55650irq/125-lan19:40:221
6443991514,1cyclictest55650irq/125-lan20:21:551
6443991514,1cyclictest55650irq/125-lan19:35:121
6443991413,1cyclictest55650irq/125-lan19:50:171
6439991414,0cyclictest294-21hwrng21:07:530
6439991313,0cyclictest294-21hwrng20:09:310
6443991110,1cyclictest55650irq/125-lan19:30:241
643999106,3cyclictest703-21snmpd23:24:010
64399999,0cyclictest703-21snmpd22:26:120
64399998,1cyclictest703-21snmpd23:33:230
64399998,1cyclictest703-21snmpd23:09:560
64399998,1cyclictest703-21snmpd22:48:280
64399998,1cyclictest703-21snmpd22:15:010
64399998,1cyclictest703-21snmpd00:07:560
64399996,2cyclictest703-21snmpd23:13:530
64399996,2cyclictest703-21snmpd21:10:000
64399988,0cyclictest703-21snmpd23:01:070
64399988,0cyclictest703-21snmpd21:20:580
64399988,0cyclictest703-21snmpd20:46:000
64399988,0cyclictest703-21snmpd20:26:020
64399988,0cyclictest703-21snmpd20:04:220
64399988,0cyclictest294-21hwrng23:56:510
64399988,0cyclictest294-21hwrng23:36:220
64399988,0cyclictest294-21hwrng23:17:560
64399988,0cyclictest294-21hwrng22:57:270
64399988,0cyclictest294-21hwrng22:35:570
64399988,0cyclictest294-21hwrng21:45:470
64399988,0cyclictest294-21hwrng21:42:420
64399988,0cyclictest294-21hwrng21:04:490
64399988,0cyclictest294-21hwrng19:50:040
64399988,0cyclictest294-21hwrng19:11:090
64399988,0cyclictest294-21hwrng00:31:400
64399987,1cyclictest703-21snmpd00:38:370
64399987,1cyclictest703-21snmpd00:29:390
64399987,1cyclictest294-21hwrng21:50:540
64399986,2cyclictest703-21snmpd23:51:590
64399986,2cyclictest703-21snmpd22:16:360
64399985,3cyclictest12139-21ntpq23:40:190
64399985,2cyclictest7053-21ntpq20:35:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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