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2025-11-21 - 20:14

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 Fri Nov 21, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23866992019,1cyclictest55650irq/125-lan10:08:451
23866992019,1cyclictest55650irq/125-lan10:03:221
23866991918,1cyclictest55650irq/125-lan12:20:181
23866991918,1cyclictest55650irq/125-lan12:06:251
23866991918,1cyclictest55650irq/125-lan12:02:341
23866991918,1cyclictest55650irq/125-lan11:37:551
23866991918,1cyclictest55650irq/125-lan11:29:481
23866991918,1cyclictest55650irq/125-lan10:55:221
23866991918,1cyclictest55650irq/125-lan10:42:411
23866991918,1cyclictest55650irq/125-lan10:17:011
23866991918,1cyclictest55650irq/125-lan09:31:331
23866991918,1cyclictest55650irq/125-lan09:29:031
23866991917,1cyclictest55650irq/125-lan09:45:161
23866991818,0cyclictest55650irq/125-lan12:28:491
23866991818,0cyclictest55650irq/125-lan11:55:561
23866991818,0cyclictest55650irq/125-lan11:40:511
23866991818,0cyclictest55650irq/125-lan11:01:421
23866991818,0cyclictest55650irq/125-lan10:38:451
23866991818,0cyclictest55650irq/125-lan09:53:251
23866991818,0cyclictest55650irq/125-lan09:10:271
23866991818,0cyclictest55650irq/125-lan07:40:401
23866991818,0cyclictest55650irq/125-lan07:13:171
23866991817,1cyclictest55650irq/125-lan12:35:361
23866991817,1cyclictest55650irq/125-lan12:15:381
23866991817,1cyclictest55650irq/125-lan11:50:441
23866991817,1cyclictest55650irq/125-lan11:47:151
23866991817,1cyclictest55650irq/125-lan11:32:121
23866991817,1cyclictest55650irq/125-lan11:20:351
23866991817,1cyclictest55650irq/125-lan11:17:131
23866991817,1cyclictest55650irq/125-lan11:06:461
23866991817,1cyclictest55650irq/125-lan10:49:411
23866991817,1cyclictest55650irq/125-lan10:30:551
23866991817,1cyclictest55650irq/125-lan10:27:341
23866991817,1cyclictest55650irq/125-lan10:10:141
23866991817,1cyclictest55650irq/125-lan09:55:421
23866991817,1cyclictest55650irq/125-lan09:20:071
23866991817,1cyclictest55650irq/125-lan09:16:231
23866991817,1cyclictest55650irq/125-lan08:45:401
23866991817,1cyclictest55650irq/125-lan08:24:511
23866991817,1cyclictest55650irq/125-lan07:49:541
23866991816,1cyclictest55650irq/125-lan11:11:161
23866991816,1cyclictest55650irq/125-lan09:36:001
23866991716,1cyclictest55650irq/125-lan12:30:231
23866991716,1cyclictest55650irq/125-lan12:10:281
23866991716,1cyclictest55650irq/125-lan10:24:251
23866991716,1cyclictest55650irq/125-lan08:44:391
23866991716,1cyclictest55650irq/125-lan08:36:021
23866991716,1cyclictest55650irq/125-lan08:30:121
23866991716,1cyclictest55650irq/125-lan08:09:561
23866991716,1cyclictest55650irq/125-lan07:50:411
23866991716,1cyclictest55650irq/125-lan07:37:261
23866991716,1cyclictest55650irq/125-lan07:29:511
23866991716,1cyclictest55650irq/125-lan07:17:301
23866991715,2cyclictest55650irq/125-lan10:50:091
23866991616,0cyclictest55650irq/125-lan09:42:131
23866991616,0cyclictest55650irq/125-lan09:00:411
23866991616,0cyclictest55650irq/125-lan08:52:071
23866991616,0cyclictest55650irq/125-lan08:18:061
23866991615,1cyclictest55650irq/125-lan09:08:071
23866991615,1cyclictest55650irq/125-lan08:25:331
23866991615,1cyclictest55650irq/125-lan07:57:201
23866991514,1cyclictest55650irq/125-lan08:11:021
23866991413,1cyclictest55650irq/125-lan08:55:431
23866991413,1cyclictest55650irq/125-lan07:34:391
23866991413,1cyclictest55650irq/125-lan07:22:271
23866991312,1cyclictest55650irq/125-lan08:02:111
238619998,1cyclictest703-21snmpd12:25:260
238619998,1cyclictest703-21snmpd11:53:070
238619998,1cyclictest703-21snmpd11:39:150
238619998,1cyclictest703-21snmpd11:06:260
238619998,1cyclictest703-21snmpd10:48:180
238619998,1cyclictest703-21snmpd09:35:070
238619998,1cyclictest703-21snmpd08:53:150
238619998,1cyclictest703-21snmpd08:36:080
238619998,1cyclictest1470-21ntp_kernel_pll_07:35:170
238619996,2cyclictest703-21snmpd12:34:050
238619996,2cyclictest703-21snmpd11:34:180
238619996,2cyclictest703-21snmpd11:16:010
238619996,2cyclictest703-21snmpd11:00:200
238619996,2cyclictest703-21snmpd10:59:170
238619996,2cyclictest703-21snmpd10:40:030
238619996,2cyclictest703-21snmpd09:52:140
238619996,2cyclictest703-21snmpd07:22:510
238619988,0cyclictest703-21snmpd10:16:150
238619988,0cyclictest703-21snmpd07:50:590
238619988,0cyclictest294-21hwrng12:37:190
238619988,0cyclictest294-21hwrng12:02:300
238619988,0cyclictest294-21hwrng07:27:030
238619987,1cyclictest703-21snmpd10:24:180
238619987,1cyclictest703-21snmpd09:13:400
238619987,1cyclictest703-21snmpd08:02:580
238619987,1cyclictest3357-21ntp_kernel_err07:40:190
238619987,1cyclictest29492-21cut12:05:150
238619987,1cyclictest294-21hwrng09:30:570
238619987,1cyclictest27628-21runrttasks10:13:050
238619987,1cyclictest11116-21/usr/sbin/munin09:55:150
238619986,2cyclictest703-21snmpd11:57:480
238619986,2cyclictest703-21snmpd10:27:250
238619986,2cyclictest703-21snmpd09:40:350
238619986,2cyclictest294-21hwrng10:05:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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