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2025-09-15 - 07:17

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 highest latencies:
System rack8slot7s.osadl.org (updated Mon Sep 15, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27783992019,1cyclictest55650irq/125-lan23:57:171
27783991918,1cyclictest55650irq/125-lan23:53:171
27783991918,1cyclictest55650irq/125-lan23:39:221
27783991918,1cyclictest55650irq/125-lan23:31:511
27783991918,1cyclictest55650irq/125-lan22:52:451
27783991918,1cyclictest55650irq/125-lan22:32:071
27783991918,1cyclictest55650irq/125-lan22:26:101
27783991918,1cyclictest55650irq/125-lan22:19:471
27783991918,1cyclictest55650irq/125-lan22:00:191
27783991918,1cyclictest55650irq/125-lan21:53:051
27783991918,1cyclictest55650irq/125-lan21:44:121
27783991918,1cyclictest55650irq/125-lan21:37:351
27783991918,1cyclictest55650irq/125-lan20:41:251
27783991918,1cyclictest55650irq/125-lan20:15:191
27783991918,1cyclictest55650irq/125-lan19:39:401
27783991918,1cyclictest55650irq/125-lan19:23:021
27783991918,1cyclictest55650irq/125-lan00:37:321
27783991918,1cyclictest55650irq/125-lan00:22:181
27783991918,1cyclictest55650irq/125-lan00:10:241
27783991918,1cyclictest55650irq/125-lan00:08:101
27783991917,2cyclictest55650irq/125-lan21:25:591
27783991917,1cyclictest55650irq/125-lan22:35:191
27783991818,0cyclictest55650irq/125-lan21:48:221
27783991818,0cyclictest55650irq/125-lan21:13:211
27783991818,0cyclictest55650irq/125-lan20:10:191
27783991817,1cyclictest55650irq/125-lan23:47:531
27783991817,1cyclictest55650irq/125-lan23:40:131
27783991817,1cyclictest55650irq/125-lan23:25:491
27783991817,1cyclictest55650irq/125-lan23:20:271
27783991817,1cyclictest55650irq/125-lan23:17:051
27783991817,1cyclictest55650irq/125-lan23:10:201
27783991817,1cyclictest55650irq/125-lan23:07:251
27783991817,1cyclictest55650irq/125-lan22:58:041
27783991817,1cyclictest55650irq/125-lan22:42:111
27783991817,1cyclictest55650irq/125-lan22:21:561
27783991817,1cyclictest55650irq/125-lan22:09:311
27783991817,1cyclictest55650irq/125-lan21:58:511
27783991817,1cyclictest55650irq/125-lan21:30:041
27783991817,1cyclictest55650irq/125-lan21:19:061
27783991817,1cyclictest55650irq/125-lan20:33:021
27783991817,1cyclictest55650irq/125-lan20:23:541
27783991817,1cyclictest55650irq/125-lan19:51:411
27783991817,1cyclictest55650irq/125-lan19:49:381
27783991817,1cyclictest55650irq/125-lan00:25:001
27783991817,1cyclictest55650irq/125-lan00:16:041
27783991817,1cyclictest55650irq/125-lan00:01:301
27783991816,1cyclictest55650irq/125-lan19:40:441
27783991814,3cyclictest55650irq/125-lan21:20:111
27783991717,0cyclictest55650irq/125-lan20:52:421
27783991717,0cyclictest55650irq/125-lan20:06:191
27783991717,0cyclictest55650irq/125-lan20:03:001
27783991717,0cyclictest55650irq/125-lan19:16:201
27783991717,0cyclictest55650irq/125-lan19:13:371
27783991717,0cyclictest55650irq/125-lan00:33:301
27783991716,1cyclictest55650irq/125-lan23:00:211
27783991716,1cyclictest55650irq/125-lan22:46:491
27783991716,1cyclictest55650irq/125-lan22:11:101
27783991716,1cyclictest55650irq/125-lan21:07:081
27783991716,1cyclictest55650irq/125-lan20:55:251
27783991716,1cyclictest55650irq/125-lan20:49:271
27783991716,1cyclictest55650irq/125-lan19:25:021
27783991616,0cyclictest55650irq/125-lan20:35:491
27783991615,1cyclictest55650irq/125-lan20:26:471
27783991514,1cyclictest55650irq/125-lan21:02:011
27783991514,1cyclictest55650irq/125-lan19:31:051
27780991515,0cyclictest294-21hwrng20:20:470
27783991414,0cyclictest55650irq/125-lan19:57:211
27780991313,0cyclictest294-21hwrng00:02:590
2778099106,3cyclictest703-21snmpd23:07:000
2778099106,3cyclictest703-21snmpd22:05:240
27780991010,0cyclictest294-21hwrng21:31:270
277809999,0cyclictest294-21hwrng20:51:310
277809999,0cyclictest294-21hwrng00:11:110
277809998,1cyclictest703-21snmpd23:11:000
277809998,1cyclictest703-21snmpd21:29:330
277809998,1cyclictest703-21snmpd20:58:150
277809998,1cyclictest294-21hwrng23:04:380
277809996,2cyclictest703-21snmpd21:44:450
277809996,2cyclictest703-21snmpd21:05:270
277809996,2cyclictest703-21snmpd20:47:450
277809996,2cyclictest703-21snmpd20:41:220
277809995,3cyclictest468-21diskstats22:10:160
277809988,0cyclictest703-21snmpd23:22:010
277809988,0cyclictest703-21snmpd20:26:180
277809988,0cyclictest703-21snmpd19:41:290
277809988,0cyclictest294-21hwrng23:40:280
277809988,0cyclictest294-21hwrng23:30:140
277809988,0cyclictest294-21hwrng21:35:330
277809988,0cyclictest294-21hwrng21:20:100
277809988,0cyclictest294-21hwrng21:19:090
277809988,0cyclictest294-21hwrng21:13:000
277809988,0cyclictest294-21hwrng21:03:470
277809988,0cyclictest294-21hwrng20:31:010
277809988,0cyclictest294-21hwrng19:45:580
277809988,0cyclictest294-21hwrng19:36:460
277809988,0cyclictest294-21hwrng00:15:170
277809987,1cyclictest703-21snmpd23:37:440
277809987,1cyclictest703-21snmpd22:26:210
277809987,1cyclictest703-21snmpd21:53:200
277809987,1cyclictest2776-21latency_hist19:30:000
277809987,1cyclictest12358-21ntp_kernel_err22:55:180
277809986,2cyclictest703-21snmpd23:46:220
277809986,2cyclictest703-21snmpd22:21:000
277809986,2cyclictest703-21snmpd19:18:310
277809985,2cyclictest703-21snmpd00:20:210
277809981,0cyclictest22372-21grep22:00:000
277809977,0cyclictest294-21hwrng23:50:410
277809977,0cyclictest294-21hwrng23:17:550
277809977,0cyclictest294-21hwrng22:33:540
277809977,0cyclictest294-21hwrng20:36:080
277809977,0cyclictest294-21hwrng19:14:130
277809977,0cyclictest294-21hwrng00:36:460
277809976,1cyclictest703-21snmpd00:31:300
277809976,1cyclictest5681-21needreboot22:15:150
277809976,1cyclictest5494-21ntp_kernel_err23:55:170
277809976,1cyclictest18316-21ntp_kernel_pll_20:10:210
277809976,1cyclictest16910-21packagekitd23:26:210
277809976,1cyclictest16139-21head20:05:150
277809975,2cyclictest681-21ntpd19:30:180
277809975,1cyclictest0-21swapper/022:40:150
277809974,3cyclictest703-21snmpd22:50:100
277809974,2cyclictest703-21snmpd20:00:240
277809973,3cyclictest703-21snmpd00:05:060
277809966,0cyclictest294-21hwrng21:45:460
277809966,0cyclictest294-21hwrng19:55:110
277809966,0cyclictest294-21hwrng19:24:270
277809965,1cyclictest487-21gmain00:29:080
277809965,1cyclictest294-21hwrng22:37:590
277809965,1cyclictest2255-21gltestperf22:45:140
277809952,2cyclictest703-21snmpd20:15:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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