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2026-03-21 - 21:12

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 Mar 21, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16245991918,1cyclictest65850irq/126-lan11:29:463
16245991918,1cyclictest65850irq/126-lan10:30:543
16245991918,1cyclictest65850irq/126-lan10:20:213
16245991818,0cyclictest65850irq/126-lan11:10:253
16245991818,0cyclictest65850irq/126-lan10:50:183
16245991818,0cyclictest65850irq/126-lan08:24:543
16245991817,1cyclictest65850irq/126-lan11:00:133
16245991817,1cyclictest65850irq/126-lan10:35:533
16245991717,0cyclictest65850irq/126-lan11:55:183
16245991717,0cyclictest65850irq/126-lan10:45:123
16245991717,0cyclictest65850irq/126-lan07:25:113
16245991716,1cyclictest65850irq/126-lan12:20:203
16245991716,1cyclictest65850irq/126-lan11:45:173
16245991716,1cyclictest65850irq/126-lan09:56:213
16245991716,1cyclictest65850irq/126-lan08:40:183
16245991716,1cyclictest65850irq/126-lan08:35:143
16245991716,1cyclictest65850irq/126-lan08:00:203
16245991716,1cyclictest65850irq/126-lan07:40:153
16245991616,0cyclictest65850irq/126-lan10:05:133
16245991616,0cyclictest65850irq/126-lan07:45:163
16245991615,1cyclictest65850irq/126-lan12:34:543
16245991615,1cyclictest65850irq/126-lan11:15:153
16245991615,1cyclictest65850irq/126-lan07:53:543
16236991616,0cyclictest65850irq/126-lan07:15:001
16236991616,0cyclictest65850irq/126-lan07:10:211
16245991515,0cyclictest65850irq/126-lan10:26:543
16245991515,0cyclictest65850irq/126-lan09:45:143
16245991515,0cyclictest65850irq/126-lan09:35:133
16245991514,1cyclictest65850irq/126-lan12:15:193
16245991514,1cyclictest65850irq/126-lan09:15:103
16245991514,1cyclictest65850irq/126-lan09:10:193
16245991514,1cyclictest65850irq/126-lan09:00:103
16245991514,1cyclictest65850irq/126-lan08:15:163
16245991514,1cyclictest65850irq/126-lan08:10:153
16245991414,0cyclictest65850irq/126-lan12:10:213
16245991414,0cyclictest65850irq/126-lan12:05:003
16245991414,0cyclictest65850irq/126-lan12:03:183
16245991414,0cyclictest65850irq/126-lan10:14:523
16245991414,0cyclictest65850irq/126-lan09:40:193
16245991414,0cyclictest65850irq/126-lan08:06:543
16245991413,1cyclictest65850irq/126-lan12:35:143
16245991413,1cyclictest65850irq/126-lan11:50:183
16245991413,1cyclictest65850irq/126-lan10:55:153
16245991413,1cyclictest65850irq/126-lan09:50:193
16245991413,1cyclictest65850irq/126-lan08:55:153
16245991413,1cyclictest65850irq/126-lan08:30:163
16245991413,1cyclictest65850irq/126-lan08:00:013
16245991313,0cyclictest65850irq/126-lan11:20:133
16245991313,0cyclictest65850irq/126-lan11:09:523
16245991313,0cyclictest65850irq/126-lan09:28:553
16245991313,0cyclictest65850irq/126-lan07:24:553
16245991312,1cyclictest65850irq/126-lan11:40:173
16245991312,1cyclictest65850irq/126-lan08:25:133
16245991212,0cyclictest65850irq/126-lan11:35:163
16245991211,1cyclictest65850irq/126-lan12:25:153
16245991211,1cyclictest65850irq/126-lan08:50:133
16245991211,1cyclictest65850irq/126-lan07:35:123
16245991111,0cyclictest65850irq/126-lan07:20:003
16245991110,1cyclictest65850irq/126-lan11:30:193
16245991110,1cyclictest65850irq/126-lan10:45:003
16245991110,1cyclictest65850irq/126-lan10:00:193
1624599109,1cyclictest65850irq/126-lan07:30:173
16245991010,0cyclictest65850irq/126-lan10:15:133
16245991010,0cyclictest65850irq/126-lan09:30:133
162459998,1cyclictest65850irq/126-lan09:20:153
162429998,1cyclictest743-21snmpd12:10:332
162429998,1cyclictest743-21snmpd12:07:012
162429998,1cyclictest743-21snmpd11:03:022
162429998,1cyclictest743-21snmpd10:20:512
162429998,1cyclictest743-21snmpd08:55:002
162429998,1cyclictest743-21snmpd08:21:282
162429998,1cyclictest29471-21dump-pmu-power11:35:002
162369998,1cyclictest743-21snmpd11:33:331
162369998,1cyclictest743-21snmpd08:50:141
162369998,1cyclictest741-21lldpd08:57:391
162279998,1cyclictest743-21snmpd12:03:040
162279998,1cyclictest743-21snmpd10:52:470
162279998,1cyclictest743-21snmpd09:39:250
162279998,1cyclictest743-21snmpd08:43:570
162279998,1cyclictest743-21snmpd08:19:320
162279998,1cyclictest741-21lldpd11:45:380
162459988,0cyclictest65850irq/126-lan09:05:143
162429988,0cyclictest743-21snmpd11:36:482
162429988,0cyclictest743-21snmpd09:59:572
162429988,0cyclictest743-21snmpd09:29:262
162429988,0cyclictest743-21snmpd07:43:312
162429988,0cyclictest741-21lldpd09:13:552
162429988,0cyclictest741-21lldpd08:06:472
162429988,0cyclictest741-21lldpd07:50:352
162429987,1cyclictest743-21snmpd11:07:022
162429987,1cyclictest743-21snmpd10:34:582
162429987,1cyclictest743-21snmpd07:49:092
162429987,1cyclictest741-21lldpd10:35:542
162429987,1cyclictest741-21lldpd08:30:322
162429987,1cyclictest506-21systemd-resolve07:55:172
162429986,2cyclictest743-21snmpd11:14:042
162429986,2cyclictest743-21snmpd09:07:572
162369988,0cyclictest743-21snmpd10:45:071
162369988,0cyclictest743-21snmpd08:49:241
162369988,0cyclictest743-21snmpd08:43:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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