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2025-12-17 - 23:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
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 rackeslot8s.osadl.org (updated Wed Dec 17, 2025 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30487819912400,1236cyclictest31092412sleep307:54:563
30487819912140,1210cyclictest33933002sleep311:34:573
30487819912011,1197cyclictest33612292sleep311:09:563
30487819911891,1184cyclictest31413602sleep308:19:573
3048781992926,1cyclictest0-21swapper/308:40:003
3048781992522,1cyclictest0-21swapper/308:30:003
3048781991916,1cyclictest0-21swapper/310:50:003
3048781991916,1cyclictest0-21swapper/310:50:003
304878199181,13cyclictest3393598-21taskset11:35:123
3048781991715,1cyclictest0-21swapper/310:55:013
3048781991715,1cyclictest0-21swapper/309:45:133
3048781991714,1cyclictest0-21swapper/310:35:003
3048781991714,1cyclictest0-21swapper/309:30:133
3048781991613,1cyclictest0-21swapper/312:10:223
3048781991613,1cyclictest0-21swapper/309:20:183
304878199161,11cyclictest3322418-21turbostat10:40:003
304878199161,11cyclictest3206429-21taskset09:10:123
304878199161,11cyclictest3083192-21turbostat07:35:003
3048781991513,1cyclictest0-21swapper/311:55:063
3048781991513,1cyclictest0-21swapper/309:07:123
3048781991513,0cyclictest0-21swapper/311:45:193
3048781991513,0cyclictest0-21swapper/308:00:063
3048781991512,1cyclictest0-21swapper/312:20:003
3048781991512,1cyclictest0-21swapper/310:24:253
304878199151,11cyclictest3429185-21taskset12:00:163
304878199151,11cyclictest3399984-21taskset11:40:013
304878199151,10cyclictest3263285-21taskset09:50:193
304878199145,6cyclictest32908172sleep310:15:173
304878199144,7cyclictest3054846-21taskset07:11:453
304878199143,8cyclictest3167644-21taskset08:40:123
3048781991412,1cyclictest0-21swapper/310:07:013
3048781991412,0cyclictest0-21swapper/311:25:173
3048781991412,0cyclictest0-21swapper/308:05:343
3048781991411,1cyclictest0-21swapper/312:34:333
3048781991411,1cyclictest0-21swapper/310:05:013
3048781991411,1cyclictest0-21swapper/308:10:153
304878199141,10cyclictest3457702-21taskset12:25:013
304878199141,10cyclictest3192251-21taskset08:55:233
304878199141,10cyclictest3180198-21taskset08:49:573
304878199141,10cyclictest3147802-21turbostat08:25:003
304878199141,10cyclictest3094146-21taskset07:40:173
304878199140,11cyclictest3055447-21taskset07:15:013
32836682130,10sleep03283670-21cron10:10:000
304878199134,6cyclictest3186248-21taskset08:50:253
304878199133,7cyclictest3476666-21taskset12:36:463
304878199132,9cyclictest3212769-21taskset09:15:013
304878199132,7cyclictest31095152sleep307:55:133
304878199131,9cyclictest3437884-21taskset12:06:333
304878199131,9cyclictest3365418-21taskset11:10:163
304878199131,9cyclictest3245109-21taskset09:40:093
304878199131,9cyclictest3096710-21taskset07:45:023
304878199131,9cyclictest3069842-21taskset07:22:113
3048781991312,0cyclictest0-21swapper/308:30:053
3048781991311,1cyclictest0-21swapper/309:28:433
3048781991311,0cyclictest0-21swapper/311:50:563
3048781991310,1cyclictest0-21swapper/310:40:173
304878199130,9cyclictest3242402-21taskset09:35:173
304878199130,10cyclictest3303185-21taskset10:25:013
301798130,9rtkit-daemon3361677-21df_inode11:10:122
304878199124,6cyclictest3348055-21taskset10:55:303
304878199123,7cyclictest3379276-21taskset11:20:183
304878199121,9cyclictest3289857-21taskset10:11:503
304878199121,9cyclictest3264366-21taskset09:55:043
304878199121,9cyclictest3199540-21taskset09:02:473
304878199121,8cyclictest3089251-21taskset07:35:303
304878199121,7cyclictest33486852sleep311:00:113
304878199120,9cyclictest3456838-21taskset12:20:203
304878199120,9cyclictest3367920-21taskset11:15:103
304878199120,9cyclictest3076124-21taskset07:25:233
301798120,8rtkit-daemon3055353-21munin-node10:19:082
301798120,7rtkit-daemon3123782-21sed08:05:152
301798120,6rtkit-daemon3134577-21users08:10:222
33215722110,8sleep03321692-21grep10:35:200
30425582110,6sleep30-21swapper/307:05:253
301798110,5rtkit-daemon3048458-21sshd07:07:472
33555372101,5sleep23356528-21irqstats11:05:162
31524112100,1sleep00-21swapper/008:25:180
31430962101,6sleep23144527-21cut08:20:162
31095412101,5sleep03109697-21diskstats07:55:140
31031242102,4sleep23103146-21apt-get07:50:122
30897702100,3sleep13089796-21apt-get07:40:001
30448162101,6sleep13046967-21cut07:05:311
301798100,6rtkit-daemon636-21snmpd10:13:272
301798100,6rtkit-daemon317-21systemd-udevd11:41:332
301798100,4rtkit-daemon3055353-21munin-node10:29:552
301798100,3rtkit-daemon3205-21sendmail-mta10:53:132
301798100,3rtkit-daemon3055353-21munin-node12:30:122
3412545291,2sleep00-21swapper/011:50:010
3314806291,4sleep03314877-21ntp_states10:30:190
3070353291,4sleep03070505-21df_inode07:25:140
30179890,6rtkit-daemon3200908-21packagekitd10:59:492
30179890,5rtkit-daemon636-21snmpd10:44:322
30179890,5rtkit-daemon3205-21sendmail-mta12:18:222
30179890,5rtkit-daemon3205-21sendmail-mta11:56:522
30179890,5rtkit-daemon3205-21sendmail-mta08:01:222
30179890,5rtkit-daemon3186607-21cron08:55:002
30179890,4rtkit-daemon448-21wpa_supplicant09:35:212
30179890,4rtkit-daemon448-21wpa_supplicant08:55:192
30179890,4rtkit-daemon3055353-21munin-node09:28:332
30179890,3rtkit-daemon636-21snmpd11:17:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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