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2026-05-28 - 22:02

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 Thu May 28, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21968991918,1cyclictest65850irq/126-lan12:20:173
21968991918,1cyclictest65850irq/126-lan08:52:573
21963991919,0cyclictest13212-21cat09:25:122
21968991818,0cyclictest65850irq/126-lan09:07:323
21968991818,0cyclictest65850irq/126-lan09:00:113
21968991818,0cyclictest65850irq/126-lan08:36:463
21968991817,1cyclictest65850irq/126-lan12:35:043
21968991817,1cyclictest65850irq/126-lan11:05:203
21963991818,0cyclictest743-21snmpd12:35:532
21963991818,0cyclictest743-21snmpd12:18:402
21963991818,0cyclictest743-21snmpd12:02:402
21963991818,0cyclictest743-21snmpd11:39:242
21963991818,0cyclictest743-21snmpd10:22:242
21963991818,0cyclictest743-21snmpd09:56:402
21963991818,0cyclictest743-21snmpd09:53:462
21963991818,0cyclictest743-21snmpd07:42:272
21963991818,0cyclictest4805-21cat07:45:142
21968991717,0cyclictest65850irq/126-lan12:15:173
21968991716,1cyclictest65850irq/126-lan12:05:133
21968991716,1cyclictest65850irq/126-lan11:42:423
21968991716,1cyclictest65850irq/126-lan11:35:153
21968991716,1cyclictest65850irq/126-lan11:20:163
21968991716,1cyclictest65850irq/126-lan09:25:013
21968991716,1cyclictest65850irq/126-lan08:05:193
21968991716,1cyclictest65850irq/126-lan08:01:023
21963991717,0cyclictest743-21snmpd07:28:092
21968991616,0cyclictest65850irq/126-lan12:27:023
21968991616,0cyclictest65850irq/126-lan11:30:033
21968991616,0cyclictest65850irq/126-lan11:25:173
21968991616,0cyclictest65850irq/126-lan11:10:173
21968991616,0cyclictest65850irq/126-lan10:45:123
21968991616,0cyclictest65850irq/126-lan07:29:253
21968991615,1cyclictest65850irq/126-lan12:30:123
21968991615,1cyclictest65850irq/126-lan11:55:143
21968991615,1cyclictest65850irq/126-lan10:00:133
21968991615,1cyclictest65850irq/126-lan09:45:133
21968991615,1cyclictest65850irq/126-lan07:15:193
21968991515,0cyclictest65850irq/126-lan09:35:193
21968991515,0cyclictest65850irq/126-lan09:24:073
21968991515,0cyclictest65850irq/126-lan08:33:253
21968991514,1cyclictest65850irq/126-lan11:49:543
21968991514,1cyclictest65850irq/126-lan10:55:163
21968991514,1cyclictest65850irq/126-lan10:16:023
21968991514,1cyclictest65850irq/126-lan08:55:143
21968991514,1cyclictest65850irq/126-lan07:47:033
21968991514,1cyclictest65850irq/126-lan07:30:123
21968991514,1cyclictest65850irq/126-lan07:20:003
21968991514,1cyclictest65850irq/126-lan07:10:183
21963991515,0cyclictest743-21snmpd10:14:022
21968991414,0cyclictest65850irq/126-lan11:00:113
21968991414,0cyclictest65850irq/126-lan08:10:143
21968991414,0cyclictest65850irq/126-lan07:40:183
21968991413,1cyclictest65850irq/126-lan12:00:163
21968991413,1cyclictest65850irq/126-lan11:50:193
21968991413,1cyclictest65850irq/126-lan10:35:143
21968991413,1cyclictest65850irq/126-lan10:25:143
21968991413,1cyclictest65850irq/126-lan10:25:133
21968991413,1cyclictest65850irq/126-lan10:10:113
21968991413,1cyclictest65850irq/126-lan09:30:163
21968991413,1cyclictest65850irq/126-lan09:15:173
21968991413,1cyclictest65850irq/126-lan07:35:133
21968991412,1cyclictest65850irq/126-lan10:40:113
21968991313,0cyclictest65850irq/126-lan10:06:013
21968991312,1cyclictest65850irq/126-lan10:30:163
21968991312,1cyclictest65850irq/126-lan10:20:113
21968991312,1cyclictest65850irq/126-lan09:55:113
21968991312,1cyclictest65850irq/126-lan07:55:133
21963991313,0cyclictest743-21snmpd08:49:062
21968991212,0cyclictest65850irq/126-lan09:50:173
21968991211,1cyclictest65850irq/126-lan12:10:153
21968991211,1cyclictest65850irq/126-lan11:16:023
21968991211,1cyclictest65850irq/126-lan09:10:173
21968991211,1cyclictest65850irq/126-lan08:45:193
21968991211,1cyclictest65850irq/126-lan08:40:153
21968991211,1cyclictest65850irq/126-lan07:50:133
21968991110,1cyclictest65850irq/126-lan08:25:133
2196899109,1cyclictest65850irq/126-lan08:15:123
219689998,1cyclictest65850irq/126-lan10:50:093
219689998,1cyclictest65850irq/126-lan09:40:133
219639998,1cyclictest743-21snmpd07:51:572
219589998,1cyclictest743-21snmpd12:29:071
219589998,1cyclictest743-21snmpd11:14:191
219589998,1cyclictest743-21snmpd09:21:001
219589998,1cyclictest743-21snmpd07:56:331
219589998,1cyclictest743-21snmpd07:38:231
219509998,1cyclictest743-21snmpd10:37:520
219509998,1cyclictest743-21snmpd10:08:180
219509998,1cyclictest743-21snmpd09:28:180
219509998,1cyclictest743-21snmpd09:17:040
219689988,0cyclictest65850irq/126-lan08:20:153
219639988,0cyclictest741-21lldpd11:57:472
219639988,0cyclictest741-21lldpd11:45:592
219639988,0cyclictest741-21lldpd10:31:302
219639988,0cyclictest741-21lldpd08:23:292
219639988,0cyclictest741-21lldpd07:13:172
219639987,1cyclictest743-21snmpd07:38:022
219639987,1cyclictest743-21snmpd07:19:412
219639986,2cyclictest743-21snmpd12:32:022
219639985,2cyclictest743-21snmpd07:30:092
219589988,0cyclictest743-21snmpd12:01:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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