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2026-07-18 - 02:56

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 Sat Jul 18, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26486991918,1cyclictest65850irq/126-lan20:55:140
26486991918,1cyclictest65850irq/126-lan00:26:010
26494991817,1cyclictest24271-21cat20:20:142
26486991818,0cyclictest65850irq/126-lan23:30:190
26486991818,0cyclictest65850irq/126-lan21:48:460
26486991817,1cyclictest65850irq/126-lan21:51:240
26486991817,1cyclictest65850irq/126-lan20:35:000
26486991817,1cyclictest65850irq/126-lan00:35:120
26486991717,0cyclictest65850irq/126-lan23:00:140
26486991717,0cyclictest65850irq/126-lan22:00:150
26486991717,0cyclictest65850irq/126-lan21:20:200
26486991717,0cyclictest65850irq/126-lan21:05:150
26486991716,1cyclictest65850irq/126-lan22:53:430
26486991716,1cyclictest65850irq/126-lan22:45:150
26486991716,1cyclictest65850irq/126-lan22:40:110
26486991716,1cyclictest65850irq/126-lan22:37:140
26486991716,1cyclictest65850irq/126-lan22:34:390
26486991716,1cyclictest65850irq/126-lan20:35:210
26486991716,1cyclictest65850irq/126-lan20:35:210
26486991716,1cyclictest65850irq/126-lan19:50:170
26486991616,0cyclictest65850irq/126-lan21:30:280
26486991616,0cyclictest65850irq/126-lan19:47:340
26486991616,0cyclictest65850irq/126-lan19:42:350
26486991616,0cyclictest65850irq/126-lan19:10:130
26486991615,1cyclictest65850irq/126-lan23:59:590
26486991615,1cyclictest65850irq/126-lan20:15:200
26486991615,1cyclictest65850irq/126-lan19:35:140
26486991615,1cyclictest65850irq/126-lan19:30:140
26486991615,1cyclictest65850irq/126-lan19:25:130
26486991615,1cyclictest65850irq/126-lan00:30:200
26486991615,1cyclictest65850irq/126-lan00:10:120
26486991615,1cyclictest65850irq/126-lan00:08:090
26486991615,1cyclictest65850irq/126-lan00:00:140
26486991515,0cyclictest65850irq/126-lan23:45:440
26486991515,0cyclictest65850irq/126-lan21:15:000
26486991515,0cyclictest65850irq/126-lan20:10:100
26486991514,1cyclictest65850irq/126-lan23:25:140
26486991514,1cyclictest65850irq/126-lan23:10:160
26486991514,1cyclictest65850irq/126-lan23:05:100
26486991514,1cyclictest65850irq/126-lan22:15:210
26486991514,1cyclictest65850irq/126-lan22:10:210
26486991514,1cyclictest65850irq/126-lan20:05:110
26486991514,1cyclictest65850irq/126-lan00:19:590
26486991414,0cyclictest65850irq/126-lan22:55:140
26486991414,0cyclictest65850irq/126-lan21:25:220
26486991414,0cyclictest65850irq/126-lan20:22:300
26486991413,1cyclictest65850irq/126-lan23:40:000
26486991413,1cyclictest65850irq/126-lan22:25:140
26486991413,1cyclictest65850irq/126-lan21:55:180
26486991413,1cyclictest65850irq/126-lan21:35:120
26486991413,1cyclictest65850irq/126-lan20:40:170
26486991313,0cyclictest65850irq/126-lan23:20:150
26486991313,0cyclictest65850irq/126-lan22:05:110
26486991313,0cyclictest65850irq/126-lan21:10:180
26486991312,1cyclictest65850irq/126-lan23:35:210
26486991312,1cyclictest65850irq/126-lan23:15:140
26486991312,1cyclictest65850irq/126-lan20:25:170
26486991312,1cyclictest65850irq/126-lan20:00:170
2650099124,6cyclictest244-20systemd-journal22:05:153
26486991212,0cyclictest65850irq/126-lan21:00:140
26486991211,1cyclictest65850irq/126-lan22:20:190
26486991211,1cyclictest65850irq/126-lan20:46:510
2650099116,4cyclictest522-21avahi-daemon21:21:373
2650099112,6cyclictest9588-21sed22:20:203
2650099110,6cyclictest27500-21sed23:05:143
26486991111,0cyclictest65850irq/126-lan21:40:110
26486991110,1cyclictest65850irq/126-lan20:50:160
26486991110,1cyclictest65850irq/126-lan19:55:160
26486991110,1cyclictest65850irq/126-lan00:20:180
2650099106,4cyclictest743-21snmpd19:42:053
2650099106,4cyclictest18206-21cat20:05:133
2650099105,5cyclictest743-21snmpd22:58:203
2650099100,6cyclictest920-21taskset20:40:383
2650099100,6cyclictest31813-21ntpq23:15:163
2650099100,6cyclictest30766-21chrt19:18:363
2650099100,6cyclictest23225-21chrt20:16:083
26486991010,0cyclictest65850irq/126-lan19:20:200
26486991010,0cyclictest65850irq/126-lan19:15:180
265009996,3cyclictest743-21snmpd21:38:043
265009996,3cyclictest743-21snmpd21:01:213
265009996,3cyclictest741-21lldpd20:59:353
265009996,3cyclictest741-21lldpd00:01:133
265009993,3cyclictest0-21swapper/323:14:323
265009991,4cyclictest13095-21apt-key19:55:003
265009990,7cyclictest3597-21ntpq19:30:163
265009990,7cyclictest28903-21ntpq21:50:173
265009990,7cyclictest26612-21seq23:04:323
265009990,7cyclictest21547-21taskset00:07:053
265009990,7cyclictest21171-21ntpq22:50:153
265009990,6cyclictest8162-21taskset23:37:193
265009990,6cyclictest7970-21chrt22:19:003
265009990,6cyclictest525-21acpi23:20:113
265009990,6cyclictest32742-21taskset19:22:503
265009990,6cyclictest30651-21cat21:55:163
265009990,6cyclictest29400-21chrt20:32:213
265009990,6cyclictest28415-21grep00:25:113
265009990,6cyclictest27759-21chrt00:23:453
265009990,6cyclictest18642-21processes21:25:193
265009990,5cyclictest5824-21wc23:30:213
265009990,5cyclictest31558-21taskset20:39:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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