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2025-08-29 - 12:02

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 Fri Aug 29, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22673991918,1cyclictest66850irq/125-lan23:43:230
22673991818,0cyclictest66850irq/125-lan23:09:340
22673991818,0cyclictest66850irq/125-lan22:50:140
22673991818,0cyclictest66850irq/125-lan22:40:440
22673991818,0cyclictest66850irq/125-lan22:25:130
22673991818,0cyclictest66850irq/125-lan21:41:520
22673991818,0cyclictest66850irq/125-lan21:18:390
22673991818,0cyclictest66850irq/125-lan20:29:420
22673991818,0cyclictest66850irq/125-lan00:23:400
22673991818,0cyclictest66850irq/125-lan00:05:160
22673991817,1cyclictest66850irq/125-lan23:55:360
22673991817,1cyclictest66850irq/125-lan23:01:050
22673991817,1cyclictest66850irq/125-lan22:13:490
22673991817,1cyclictest66850irq/125-lan21:55:180
22673991817,1cyclictest66850irq/125-lan21:45:300
22673991817,1cyclictest66850irq/125-lan21:30:140
22673991717,0cyclictest771-21snmpd22:15:470
22673991717,0cyclictest66850irq/125-lan23:36:410
22673991717,0cyclictest66850irq/125-lan23:25:400
22673991717,0cyclictest66850irq/125-lan23:23:430
22673991717,0cyclictest66850irq/125-lan23:16:080
22673991717,0cyclictest66850irq/125-lan23:10:090
22673991717,0cyclictest66850irq/125-lan22:55:370
22673991717,0cyclictest66850irq/125-lan22:45:370
22673991717,0cyclictest66850irq/125-lan22:35:340
22673991717,0cyclictest66850irq/125-lan22:30:220
22673991717,0cyclictest66850irq/125-lan22:21:260
22673991717,0cyclictest66850irq/125-lan19:30:010
22673991717,0cyclictest66850irq/125-lan00:15:140
22673991716,1cyclictest66850irq/125-lan23:48:080
22673991716,1cyclictest66850irq/125-lan22:01:360
22673991716,1cyclictest66850irq/125-lan21:53:350
22673991716,1cyclictest66850irq/125-lan21:35:120
22673991716,1cyclictest66850irq/125-lan21:11:100
22673991616,0cyclictest771-21snmpd23:31:010
22673991616,0cyclictest66850irq/125-lan22:05:130
22673991616,0cyclictest66850irq/125-lan21:03:390
22673991616,0cyclictest66850irq/125-lan20:10:000
22673991616,0cyclictest66850irq/125-lan19:36:350
22673991616,0cyclictest66850irq/125-lan19:20:580
22673991616,0cyclictest66850irq/125-lan00:30:150
22673991616,0cyclictest66850irq/125-lan00:10:440
22673991615,1cyclictest771-21snmpd19:43:120
22673991615,1cyclictest66850irq/125-lan23:50:130
22673991615,1cyclictest66850irq/125-lan21:25:180
22673991615,1cyclictest66850irq/125-lan21:21:380
22673991615,1cyclictest66850irq/125-lan20:15:150
22673991615,1cyclictest66850irq/125-lan19:13:560
22673991615,1cyclictest66850irq/125-lan00:35:470
22673991615,1cyclictest66850irq/125-lan00:25:170
22673991615,1cyclictest66850irq/125-lan00:03:260
22673991515,0cyclictest66850irq/125-lan20:45:130
22673991515,0cyclictest66850irq/125-lan20:35:220
22673991515,0cyclictest66850irq/125-lan20:20:540
22673991515,0cyclictest66850irq/125-lan20:05:160
22673991515,0cyclictest66850irq/125-lan20:00:150
22673991515,0cyclictest66850irq/125-lan19:30:170
22673991514,1cyclictest66850irq/125-lan20:44:410
22673991414,0cyclictest771-21snmpd19:16:490
22673991414,0cyclictest66850irq/125-lan20:55:160
22673991414,0cyclictest66850irq/125-lan20:30:120
2267699133,3cyclictest550-21NetworkManager22:23:461
22673991313,0cyclictest66850irq/125-lan19:49:230
2267699127,3cyclictest524-21avahi-daemon21:24:271
22673991212,0cyclictest66850irq/125-lan19:55:060
22673991212,0cyclictest66850irq/125-lan19:50:170
22673991211,1cyclictest66850irq/125-lan20:50:170
2267699118,3cyclictest771-21snmpd22:54:481
2267699118,3cyclictest769-21lldpd19:52:271
2267699116,5cyclictest771-21snmpd22:49:441
22673991111,0cyclictest66850irq/125-lan21:05:160
2267699107,3cyclictest771-21snmpd21:43:461
2267699107,3cyclictest771-21snmpd00:21:221
2267699105,5cyclictest771-21snmpd00:35:381
2267699103,3cyclictest26258-21ssh22:34:401
2267699103,3cyclictest255-20systemd-journal00:06:241
226859998,1cyclictest771-21snmpd19:51:243
226859998,1cyclictest771-21snmpd00:26:473
226859998,1cyclictest517-21systemd-resolve23:12:553
226859998,1cyclictest255-20systemd-journal21:12:363
226809998,1cyclictest771-21snmpd23:55:532
226809998,1cyclictest771-21snmpd21:58:282
226809998,1cyclictest771-21snmpd20:37:442
226809998,1cyclictest771-21snmpd20:04:392
226809998,1cyclictest769-21lldpd20:18:302
226769998,1cyclictest771-21snmpd23:03:201
226769998,1cyclictest771-21snmpd21:55:131
226769998,1cyclictest769-21lldpd23:56:101
226769998,1cyclictest15971-21fschecks_time23:30:141
226769996,3cyclictest771-21snmpd20:15:511
226769995,1cyclictest771-21snmpd19:32:531
226769995,1cyclictest524-21avahi-daemon00:16:191
226769994,1cyclictest0-21swapper/123:20:151
226769993,3cyclictest7229-21apt-get22:15:141
226769992,3cyclictest30367-21ssh21:32:481
226769992,3cyclictest26658-21ssh00:14:591
226859988,0cyclictest771-21snmpd20:10:063
226859988,0cyclictest771-21snmpd20:03:073
226859988,0cyclictest769-21lldpd22:46:523
226859988,0cyclictest255-20systemd-journal21:38:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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