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2026-03-24 - 03:53

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #6

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 rack8slot6s.osadl.org (updated Tue Mar 24, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4725991918,1cyclictest65850irq/126-lan22:58:051
4725991918,0cyclictest743-21snmpd19:38:121
4734991818,0cyclictest743-21snmpd23:33:442
4734991818,0cyclictest743-21snmpd22:17:322
4734991818,0cyclictest743-21snmpd21:24:092
4734991818,0cyclictest743-21snmpd19:58:342
4725991818,0cyclictest65850irq/126-lan22:35:131
4725991818,0cyclictest65850irq/126-lan20:05:171
4725991818,0cyclictest65850irq/126-lan19:15:181
4725991817,1cyclictest65850irq/126-lan22:16:341
4725991817,1cyclictest65850irq/126-lan19:25:171
4725991817,1cyclictest65850irq/126-lan00:30:131
4734991717,0cyclictest743-21snmpd23:23:072
4734991717,0cyclictest743-21snmpd20:25:012
4734991717,0cyclictest743-21snmpd20:24:012
4725991717,0cyclictest65850irq/126-lan23:54:551
4725991717,0cyclictest65850irq/126-lan23:20:131
4725991717,0cyclictest65850irq/126-lan23:12:141
4725991717,0cyclictest65850irq/126-lan20:15:111
4725991717,0cyclictest65850irq/126-lan19:40:111
4725991716,1cyclictest65850irq/126-lan23:15:141
4725991716,1cyclictest65850irq/126-lan20:14:271
4725991616,0cyclictest743-21snmpd19:56:301
4725991616,0cyclictest65850irq/126-lan23:40:441
4725991616,0cyclictest65850irq/126-lan23:30:221
4725991616,0cyclictest65850irq/126-lan23:25:201
4725991616,0cyclictest65850irq/126-lan23:00:221
4725991616,0cyclictest65850irq/126-lan22:20:001
4725991616,0cyclictest65850irq/126-lan22:00:191
4725991616,0cyclictest65850irq/126-lan20:50:231
4725991616,0cyclictest65850irq/126-lan19:20:131
4725991616,0cyclictest65850irq/126-lan00:05:131
4725991616,0cyclictest65850irq/126-lan00:00:151
4725991616,0cyclictest32333-21cat22:50:141
4725991616,0cyclictest10573-21cat20:40:121
4725991615,1cyclictest65850irq/126-lan23:05:141
4725991615,1cyclictest65850irq/126-lan20:55:131
4725991615,1cyclictest65850irq/126-lan20:55:131
4725991615,1cyclictest65850irq/126-lan00:35:361
4725991515,0cyclictest743-21snmpd21:55:351
4725991515,0cyclictest743-21snmpd20:36:311
4725991515,0cyclictest743-21snmpd20:03:551
4725991515,0cyclictest743-21snmpd00:25:001
4725991515,0cyclictest65850irq/126-lan22:40:111
4725991515,0cyclictest65850irq/126-lan22:25:121
4725991515,0cyclictest65850irq/126-lan21:50:141
4725991515,0cyclictest65850irq/126-lan21:00:181
4725991515,0cyclictest65850irq/126-lan19:45:221
4725991515,0cyclictest65850irq/126-lan19:10:141
4725991515,0cyclictest65850irq/126-lan00:22:501
4725991515,0cyclictest15364-21cat22:10:151
4725991514,1cyclictest743-21snmpd21:10:501
4725991414,0cyclictest65850irq/126-lan23:55:131
4725991414,0cyclictest65850irq/126-lan21:15:141
4725991414,0cyclictest65850irq/126-lan21:05:141
4725991414,0cyclictest65850irq/126-lan20:25:121
4725991414,0cyclictest65850irq/126-lan20:20:131
4725991414,0cyclictest65850irq/126-lan19:30:111
4725991413,1cyclictest65850irq/126-lan22:05:121
4725991413,1cyclictest65850irq/126-lan21:25:141
4725991413,1cyclictest65850irq/126-lan19:50:161
4725991313,0cyclictest65850irq/126-lan23:45:131
4725991313,0cyclictest65850irq/126-lan22:30:091
4725991312,1cyclictest65850irq/126-lan21:30:491
4725991312,1cyclictest65850irq/126-lan21:20:211
4725991312,1cyclictest65850irq/126-lan00:19:271
4725991212,0cyclictest65850irq/126-lan22:45:201
4725991212,0cyclictest65850irq/126-lan21:45:431
4725991212,0cyclictest65850irq/126-lan21:35:191
4725991212,0cyclictest65850irq/126-lan20:46:271
4725991212,0cyclictest65850irq/126-lan20:30:051
4725991211,1cyclictest65850irq/126-lan00:10:151
4734991110,1cyclictest6768-21kworker/2:1+events20:16:172
472599109,1cyclictest65850irq/126-lan21:40:131
4725991010,0cyclictest65850irq/126-lan23:35:201
47399999,0cyclictest743-21snmpd23:16:253
47399999,0cyclictest743-21snmpd23:07:003
47399999,0cyclictest743-21snmpd22:05:523
47399999,0cyclictest743-21snmpd21:31:273
47399999,0cyclictest743-21snmpd20:22:403
47399999,0cyclictest743-21snmpd19:52:323
47399998,1cyclictest743-21snmpd23:38:493
47399998,1cyclictest743-21snmpd22:43:333
47399998,1cyclictest743-21snmpd22:03:283
47399998,1cyclictest743-21snmpd20:57:533
47399998,1cyclictest743-21snmpd20:57:533
47399998,1cyclictest506-21systemd-resolve21:40:323
47349998,1cyclictest741-21lldpd19:30:182
47349996,2cyclictest6768-21kworker/2:1+events21:45:132
47219998,1cyclictest743-21snmpd21:09:200
47219998,1cyclictest23042-21gltestperf21:10:150
47399988,0cyclictest743-21snmpd22:25:083
47399988,0cyclictest743-21snmpd21:56:073
47399988,0cyclictest743-21snmpd21:53:103
47399988,0cyclictest743-21snmpd21:19:393
47399988,0cyclictest743-21snmpd21:05:203
47399988,0cyclictest743-21snmpd20:48:563
47399988,0cyclictest743-21snmpd20:13:013
47399988,0cyclictest741-21lldpd21:21:133
47399988,0cyclictest741-21lldpd21:03:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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