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2025-11-27 - 21:17

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 Thu Nov 27, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1729992118,2cyclictest55650irq/125-lan09:25:371
1729992019,1cyclictest55650irq/125-lan11:19:151
1729992018,1cyclictest55650irq/125-lan10:45:141
1729992017,2cyclictest55650irq/125-lan11:30:111
1729991918,1cyclictest55650irq/125-lan12:39:141
1729991918,1cyclictest55650irq/125-lan12:24:131
1729991918,1cyclictest55650irq/125-lan12:18:161
1729991918,1cyclictest55650irq/125-lan11:56:351
1729991918,1cyclictest55650irq/125-lan11:52:381
1729991918,1cyclictest55650irq/125-lan11:38:471
1729991918,1cyclictest55650irq/125-lan11:26:331
1729991918,1cyclictest55650irq/125-lan11:20:201
1729991918,1cyclictest55650irq/125-lan10:55:181
1729991918,1cyclictest55650irq/125-lan10:53:541
1729991918,1cyclictest55650irq/125-lan10:28:021
1729991918,1cyclictest55650irq/125-lan10:00:301
1729991918,1cyclictest55650irq/125-lan09:35:371
1729991918,1cyclictest55650irq/125-lan09:17:501
1729991917,1cyclictest55650irq/125-lan09:10:351
1729991818,0cyclictest55650irq/125-lan10:13:131
1729991818,0cyclictest55650irq/125-lan09:46:151
1729991818,0cyclictest55650irq/125-lan09:22:071
1729991817,1cyclictest55650irq/125-lan12:30:031
1729991817,1cyclictest55650irq/125-lan12:25:171
1729991817,1cyclictest55650irq/125-lan12:05:101
1729991817,1cyclictest55650irq/125-lan12:00:341
1729991817,1cyclictest55650irq/125-lan11:46:441
1729991817,1cyclictest55650irq/125-lan11:42:161
1729991817,1cyclictest55650irq/125-lan11:10:171
1729991817,1cyclictest55650irq/125-lan11:05:201
1729991817,1cyclictest55650irq/125-lan11:00:231
1729991817,1cyclictest55650irq/125-lan10:37:031
1729991817,1cyclictest55650irq/125-lan10:34:561
1729991817,1cyclictest55650irq/125-lan10:20:071
1729991817,1cyclictest55650irq/125-lan10:16:241
1729991817,1cyclictest55650irq/125-lan10:06:271
1729991817,1cyclictest55650irq/125-lan10:06:261
1729991817,1cyclictest55650irq/125-lan09:55:371
1729991817,1cyclictest55650irq/125-lan09:40:161
1729991817,1cyclictest55650irq/125-lan09:30:201
1729991817,1cyclictest55650irq/125-lan08:22:101
1729991817,1cyclictest55650irq/125-lan08:19:121
1729991817,1cyclictest55650irq/125-lan08:03:491
1729991817,1cyclictest55650irq/125-lan07:34:241
1729991817,1cyclictest55650irq/125-lan07:25:401
1729991817,1cyclictest55650irq/125-lan07:24:201
1729991817,1cyclictest55650irq/125-lan07:16:031
1729991717,0cyclictest55650irq/125-lan12:10:501
1729991717,0cyclictest55650irq/125-lan09:50:051
1729991717,0cyclictest55650irq/125-lan07:11:091
1729991716,1cyclictest55650irq/125-lan10:40:301
1729991716,1cyclictest55650irq/125-lan09:09:501
1729991716,1cyclictest55650irq/125-lan08:25:151
1729991716,1cyclictest55650irq/125-lan08:10:121
1729991716,1cyclictest55650irq/125-lan07:50:141
1729991716,1cyclictest55650irq/125-lan07:45:161
1729991716,1cyclictest55650irq/125-lan07:42:321
1729991615,1cyclictest55650irq/125-lan09:00:211
1729991615,1cyclictest55650irq/125-lan08:40:171
1729991615,1cyclictest55650irq/125-lan08:30:171
1729991615,1cyclictest55650irq/125-lan07:55:101
1729991615,1cyclictest55650irq/125-lan07:37:061
1729991515,0cyclictest55650irq/125-lan08:58:431
1729991514,1cyclictest55650irq/125-lan08:45:201
1729991514,1cyclictest55650irq/125-lan08:08:031
1725991515,0cyclictest294-21hwrng11:37:120
1729991413,1cyclictest55650irq/125-lan08:50:141
1729991413,1cyclictest55650irq/125-lan08:39:321
1725991414,0cyclictest294-21hwrng07:49:530
1725991414,0cyclictest294-21hwrng07:35:330
1725991313,0cyclictest294-21hwrng08:43:080
172599127,5cyclictest2496-21ntp_kernel_err07:10:170
172599126,1cyclictest14398-21diskmemload10:29:550
1725991212,0cyclictest294-21hwrng09:01:340
172599120,6cyclictest24281-21turbostat.cron11:49:590
172599119,2cyclictest294-21hwrng09:44:340
172599117,4cyclictest22278-21ntpq12:20:150
172599116,5cyclictest25708-21fschecks_time11:15:140
172599116,4cyclictest703-21snmpd09:56:030
172599116,1cyclictest8375-21switchtime07:25:290
172599114,2cyclictest28332-21fschecks_time08:20:110
1725991111,0cyclictest294-21hwrng10:33:440
172599108,2cyclictest703-21snmpd07:44:200
172599107,3cyclictest703-21snmpd09:35:380
172599107,3cyclictest703-21snmpd08:14:490
172599106,4cyclictest703-21snmpd09:09:140
172599106,1cyclictest9406-21runrttasks10:56:020
172599105,5cyclictest0-21swapper/011:00:110
172599105,1cyclictest1269-21head12:00:120
172599104,3cyclictest703-21snmpd10:22:120
172599104,1cyclictest21239-21sendmail_mailqu08:00:160
172599103,2cyclictest26050-21grep10:00:140
172599103,1cyclictest0-21swapper/011:44:590
17259998,1cyclictest703-21snmpd12:15:510
17259998,1cyclictest703-21snmpd09:13:590
17259998,1cyclictest703-21snmpd08:46:020
17259998,1cyclictest294-21hwrng10:54:120
17259997,2cyclictest703-21snmpd07:30:240
17259996,3cyclictest703-21snmpd09:18:080
17259996,2cyclictest703-21snmpd12:37:560
17259996,2cyclictest703-21snmpd10:16:060
17259996,2cyclictest703-21snmpd10:11:030
17259996,2cyclictest703-21snmpd08:19:540
17259995,0cyclictest20384-21kworker/u4:3-writeback11:55:510
17259994,2cyclictest703-21snmpd09:45:200
17259994,1cyclictest0-21swapper/011:25:250
17259993,3cyclictest29929-21ssh11:20:080
17259993,2cyclictest7173-21ntpq11:30:170
17259988,0cyclictest294-21hwrng12:11:000
17259988,0cyclictest294-21hwrng12:08:570
17259988,0cyclictest294-21hwrng10:36:490
17259987,1cyclictest703-21snmpd12:27:070
17259987,1cyclictest17629-21ntp_kernel_err09:50:160
17259986,2cyclictest703-21snmpd11:53:210
17259986,2cyclictest703-21snmpd09:21:300
17259986,0cyclictest703-21snmpd07:19:070
17259985,2cyclictest703-21snmpd12:34:260
17259985,1cyclictest703-21snmpd08:35:520
17259985,1cyclictest32205-21cat08:30:130
17259984,4cyclictest30941-21sed10:05:190
17259984,4cyclictest30941-21sed10:05:190
17259982,4cyclictest32277-21sed10:45:180
17259977,0cyclictest703-21snmpd08:55:280
17259977,0cyclictest294-21hwrng10:42:570
17259977,0cyclictest294-21hwrng08:53:230
17259976,1cyclictest32183-21collect209:30:200
17259976,1cyclictest27658-21kernelversion09:25:160
17259976,1cyclictest0-21swapper/011:10:170
17259975,2cyclictest703-21snmpd08:27:430
17259965,1cyclictest22981-21pmu-power08:05:180
17259965,1cyclictest18474-21/usr/sbin/munin07:55:180
17259964,2cyclictest703-21snmpd07:52:260
17259942,2cyclictest6185-21sh07:20:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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