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2025-11-25 - 10:13

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 Nov 25, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23381992018,2cyclictest66850irq/125-lan22:35:173
23381992018,2cyclictest66850irq/125-lan20:15:483
23381991919,0cyclictest66850irq/125-lan21:18:153
23381991918,1cyclictest66850irq/125-lan23:06:163
23381991918,1cyclictest66850irq/125-lan22:15:173
23381991918,1cyclictest66850irq/125-lan21:55:453
23381991918,1cyclictest66850irq/125-lan21:26:383
23381991918,1cyclictest66850irq/125-lan19:53:573
23381991918,1cyclictest66850irq/125-lan00:22:423
23381991918,1cyclictest66850irq/125-lan00:16:263
23381991917,2cyclictest66850irq/125-lan23:39:173
23381991917,2cyclictest66850irq/125-lan22:58:093
23381991917,2cyclictest66850irq/125-lan22:41:223
23381991917,2cyclictest66850irq/125-lan21:31:003
23381991917,2cyclictest66850irq/125-lan00:33:333
23381991917,2cyclictest66850irq/125-lan00:08:113
23381991916,3cyclictest66850irq/125-lan23:41:163
23381991916,3cyclictest66850irq/125-lan23:33:393
23381991818,0cyclictest66850irq/125-lan21:53:053
23381991818,0cyclictest66850irq/125-lan21:12:363
23381991817,1cyclictest66850irq/125-lan23:04:063
23381991817,1cyclictest66850irq/125-lan22:23:513
23381991817,1cyclictest66850irq/125-lan22:08:553
23381991817,1cyclictest66850irq/125-lan21:47:063
23381991817,1cyclictest66850irq/125-lan20:45:213
23381991817,1cyclictest66850irq/125-lan00:25:133
23381991817,1cyclictest66850irq/125-lan00:13:023
23381991817,1cyclictest66850irq/125-lan00:03:453
23381991816,2cyclictest66850irq/125-lan23:19:213
23381991816,2cyclictest66850irq/125-lan22:47:013
23381991816,2cyclictest66850irq/125-lan20:14:573
23381991816,2cyclictest66850irq/125-lan00:39:013
23381991717,0cyclictest66850irq/125-lan22:32:263
23381991716,1cyclictest66850irq/125-lan23:57:483
23381991716,1cyclictest66850irq/125-lan23:45:133
23381991716,1cyclictest66850irq/125-lan23:25:223
23381991716,1cyclictest66850irq/125-lan22:52:213
23381991716,1cyclictest66850irq/125-lan22:10:223
23381991716,1cyclictest66850irq/125-lan22:04:493
23381991716,1cyclictest66850irq/125-lan21:44:213
23381991716,1cyclictest66850irq/125-lan21:35:243
23381991716,1cyclictest66850irq/125-lan21:22:133
23381991715,2cyclictest66850irq/125-lan23:21:543
23381991715,2cyclictest66850irq/125-lan22:25:043
23381991715,2cyclictest66850irq/125-lan20:00:213
23381991715,2cyclictest66850irq/125-lan19:35:203
23381991715,2cyclictest66850irq/125-lan19:35:193
23381991714,3cyclictest66850irq/125-lan23:13:553
23381991615,1cyclictest66850irq/125-lan23:50:163
23381991615,1cyclictest66850irq/125-lan20:35:203
23381991615,1cyclictest66850irq/125-lan19:40:183
23381991615,1cyclictest66850irq/125-lan19:10:223
23381991614,2cyclictest66850irq/125-lan19:30:153
23381991614,2cyclictest66850irq/125-lan19:30:153
23381991614,2cyclictest66850irq/125-lan19:29:223
23366991614,2cyclictest771-21snmpd22:34:150
23381991515,0cyclictest66850irq/125-lan20:55:193
23381991515,0cyclictest66850irq/125-lan20:20:153
23381991515,0cyclictest66850irq/125-lan19:20:003
23381991514,1cyclictest66850irq/125-lan20:05:153
23381991414,0cyclictest66850irq/125-lan20:53:213
23381991412,2cyclictest66850irq/125-lan21:05:113
23381991412,2cyclictest66850irq/125-lan19:23:223
23376991413,1cyclictest749-21ntpd22:19:452
23381991312,1cyclictest66850irq/125-lan21:00:003
23381991312,1cyclictest66850irq/125-lan19:45:133
23381991212,0cyclictest66850irq/125-lan20:42:593
23381991212,0cyclictest66850irq/125-lan19:55:113
23376991211,1cyclictest749-21ntpd23:37:212
23381991111,0cyclictest66850irq/125-lan20:30:133
233819998,1cyclictest66850irq/125-lan20:25:193
233769998,1cyclictest771-21snmpd21:04:402
233769998,1cyclictest771-21snmpd20:07:012
233769998,1cyclictest771-21snmpd19:54:122
233729998,1cyclictest771-21snmpd23:52:121
233729998,1cyclictest771-21snmpd21:33:201
233729998,1cyclictest771-21snmpd19:27:401
233729998,1cyclictest517-21systemd-resolve21:36:051
233669998,1cyclictest517-21systemd-resolve22:59:540
233769988,0cyclictest771-21snmpd22:21:542
233769988,0cyclictest771-21snmpd21:35:112
233769988,0cyclictest769-21lldpd23:40:032
233769988,0cyclictest769-21lldpd21:40:202
233769988,0cyclictest769-21lldpd20:50:522
233769988,0cyclictest769-21lldpd20:26:212
233769988,0cyclictest769-21lldpd19:38:162
233769988,0cyclictest769-21lldpd19:38:152
233769988,0cyclictest769-21lldpd00:25:502
233769988,0cyclictest769-21lldpd00:07:022
233769987,1cyclictest771-21snmpd23:45:392
233769987,1cyclictest524-21avahi-daemon00:33:492
233769987,1cyclictest517-21systemd-resolve22:45:182
233769986,2cyclictest771-21snmpd21:46:202
233769986,2cyclictest771-21snmpd20:45:152
233769986,2cyclictest749-21ntpd23:31:252
233769986,2cyclictest749-21ntpd23:13:292
233769986,2cyclictest749-21ntpd22:56:142
233769986,2cyclictest749-21ntpd21:34:502
233769986,2cyclictest749-21ntpd21:18:262
233769986,1cyclictest30254-21kworker/2:0+events20:12:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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