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2025-11-19 - 17:59

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 Wed Nov 19, 2025 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15973991919,0cyclictest66850irq/125-lan11:22:481
15973991918,1cyclictest66850irq/125-lan11:11:321
15973991918,1cyclictest66850irq/125-lan10:46:571
15973991918,1cyclictest66850irq/125-lan10:42:161
15973991918,1cyclictest66850irq/125-lan10:10:141
15973991918,1cyclictest66850irq/125-lan09:45:001
15973991918,1cyclictest66850irq/125-lan09:20:151
15973991918,1cyclictest66850irq/125-lan09:15:181
15973991818,0cyclictest66850irq/125-lan11:50:181
15973991818,0cyclictest66850irq/125-lan10:33:301
15973991818,0cyclictest66850irq/125-lan09:55:251
15973991818,0cyclictest66850irq/125-lan09:46:091
15973991817,1cyclictest66850irq/125-lan12:35:221
15973991817,1cyclictest66850irq/125-lan12:21:051
15973991817,1cyclictest66850irq/125-lan12:15:191
15973991817,1cyclictest66850irq/125-lan12:04:051
15973991817,1cyclictest66850irq/125-lan11:07:231
15973991817,1cyclictest66850irq/125-lan11:00:161
15973991817,1cyclictest66850irq/125-lan10:50:501
15973991817,1cyclictest66850irq/125-lan10:21:091
15973991817,1cyclictest66850irq/125-lan09:50:191
15973991817,1cyclictest66850irq/125-lan09:34:271
15973991817,1cyclictest66850irq/125-lan09:10:551
15973991817,1cyclictest66850irq/125-lan07:20:221
15973991717,0cyclictest66850irq/125-lan12:29:411
15973991717,0cyclictest66850irq/125-lan11:46:571
15973991717,0cyclictest66850irq/125-lan11:31:531
15973991717,0cyclictest66850irq/125-lan10:38:381
15973991717,0cyclictest66850irq/125-lan10:17:311
15973991717,0cyclictest66850irq/125-lan08:50:121
15973991717,0cyclictest66850irq/125-lan07:55:181
15973991716,1cyclictest66850irq/125-lan11:44:591
15973991716,1cyclictest66850irq/125-lan11:36:011
15973991716,1cyclictest66850irq/125-lan11:25:171
15973991716,1cyclictest66850irq/125-lan11:17:301
15973991716,1cyclictest66850irq/125-lan10:56:331
15973991716,1cyclictest66850irq/125-lan10:00:181
15973991716,1cyclictest66850irq/125-lan08:45:121
15973991616,0cyclictest66850irq/125-lan12:31:051
15973991616,0cyclictest66850irq/125-lan11:58:151
15973991616,0cyclictest66850irq/125-lan10:28:101
15973991616,0cyclictest66850irq/125-lan10:05:201
15973991616,0cyclictest66850irq/125-lan09:25:211
15973991616,0cyclictest66850irq/125-lan09:00:211
15973991616,0cyclictest66850irq/125-lan07:50:161
15973991616,0cyclictest66850irq/125-lan07:25:121
15973991616,0cyclictest66850irq/125-lan07:10:131
15973991615,1cyclictest66850irq/125-lan12:07:301
15973991615,1cyclictest66850irq/125-lan09:35:191
15973991615,1cyclictest66850irq/125-lan08:37:331
15973991615,1cyclictest66850irq/125-lan08:15:141
15973991514,1cyclictest66850irq/125-lan08:25:121
15973991514,1cyclictest66850irq/125-lan08:10:161
15973991514,1cyclictest66850irq/125-lan07:30:181
15973991414,0cyclictest66850irq/125-lan08:33:241
15973991413,1cyclictest66850irq/125-lan12:10:211
15973991413,1cyclictest66850irq/125-lan08:55:161
15973991413,1cyclictest66850irq/125-lan08:05:161
15973991313,0cyclictest66850irq/125-lan07:40:221
15973991313,0cyclictest66850irq/125-lan07:35:201
15973991312,1cyclictest66850irq/125-lan09:05:221
15973991312,1cyclictest66850irq/125-lan08:20:171
15973991312,1cyclictest66850irq/125-lan08:00:011
15973991312,1cyclictest66850irq/125-lan07:45:191
15973991211,1cyclictest66850irq/125-lan07:15:181
159809998,1cyclictest771-21snmpd09:16:123
159809998,1cyclictest769-21lldpd11:21:563
159809998,1cyclictest524-21avahi-daemon12:11:293
159769998,1cyclictest6770-21cut11:50:002
159769998,1cyclictest517-21systemd-resolve12:18:472
159769998,1cyclictest517-21systemd-resolve11:07:432
159739998,1cyclictest66850irq/125-lan08:40:181
159809988,0cyclictest769-21lldpd11:58:423
159809988,0cyclictest769-21lldpd10:51:303
159809988,0cyclictest769-21lldpd09:26:023
159809988,0cyclictest769-21lldpd08:45:043
159809988,0cyclictest769-21lldpd07:30:273
159809987,1cyclictest771-21snmpd12:08:423
159809987,1cyclictest771-21snmpd11:12:113
159809987,1cyclictest771-21snmpd10:25:303
159809987,1cyclictest771-21snmpd09:50:553
159809987,1cyclictest771-21snmpd09:14:433
159809987,1cyclictest524-21avahi-daemon10:21:073
159809987,1cyclictest25574-21cpuspeed_turbos08:50:123
159809986,2cyclictest771-21snmpd10:10:093
159809986,2cyclictest13815-21cat08:20:153
159809985,2cyclictest771-21snmpd09:30:003
159769988,0cyclictest771-21snmpd11:26:172
159769988,0cyclictest771-21snmpd07:48:002
159769988,0cyclictest769-21lldpd12:27:382
159769988,0cyclictest769-21lldpd10:57:392
159769987,1cyclictest771-21snmpd11:42:482
159769987,1cyclictest517-21systemd-resolve12:07:442
159769987,1cyclictest255-20systemd-journal09:52:502
159769986,2cyclictest771-21snmpd11:31:142
159769986,2cyclictest771-21snmpd08:51:592
159769986,2cyclictest771-21snmpd07:17:362
159769986,2cyclictest25093-21cat07:30:162
159699988,0cyclictest771-21snmpd12:39:230
159699988,0cyclictest769-21lldpd10:23:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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