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2026-04-20 - 02:31

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 Sun Apr 19, 2026 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29755991918,1cyclictest65850irq/126-lan11:40:003
29755991918,1cyclictest65850irq/126-lan09:00:183
29755991818,0cyclictest65850irq/126-lan12:39:503
29755991818,0cyclictest65850irq/126-lan10:54:243
29755991818,0cyclictest65850irq/126-lan08:21:543
29755991817,1cyclictest65850irq/126-lan11:50:213
29755991817,1cyclictest65850irq/126-lan07:45:163
29755991717,0cyclictest65850irq/126-lan11:00:183
29755991717,0cyclictest65850irq/126-lan08:35:213
29755991717,0cyclictest65850irq/126-lan08:27:243
29755991716,1cyclictest65850irq/126-lan10:59:153
29755991716,1cyclictest65850irq/126-lan10:05:173
29755991716,1cyclictest65850irq/126-lan09:50:153
29755991716,1cyclictest65850irq/126-lan09:15:193
29755991716,1cyclictest65850irq/126-lan07:10:133
29755991616,0cyclictest65850irq/126-lan11:55:213
29755991616,0cyclictest65850irq/126-lan10:20:163
29755991616,0cyclictest65850irq/126-lan09:39:343
29755991616,0cyclictest65850irq/126-lan08:05:153
29755991615,1cyclictest65850irq/126-lan12:30:213
29755991615,1cyclictest65850irq/126-lan12:01:393
29755991615,1cyclictest65850irq/126-lan11:15:193
29755991615,1cyclictest65850irq/126-lan11:05:143
29755991615,1cyclictest65850irq/126-lan10:25:133
29755991615,1cyclictest65850irq/126-lan09:45:143
29755991615,1cyclictest65850irq/126-lan09:25:143
29755991615,1cyclictest65850irq/126-lan08:00:203
29755991615,1cyclictest65850irq/126-lan07:35:163
29755991615,1cyclictest65850irq/126-lan07:15:173
29755991515,0cyclictest65850irq/126-lan10:44:083
29755991515,0cyclictest65850irq/126-lan10:35:133
29755991515,0cyclictest65850irq/126-lan07:40:113
29755991514,1cyclictest65850irq/126-lan11:20:183
29755991514,1cyclictest65850irq/126-lan09:30:213
29755991514,1cyclictest65850irq/126-lan08:45:213
29755991514,1cyclictest65850irq/126-lan08:15:203
29755991514,1cyclictest65850irq/126-lan07:34:543
29750991515,0cyclictest743-21snmpd09:03:352
29755991414,0cyclictest65850irq/126-lan12:26:553
29755991414,0cyclictest65850irq/126-lan12:05:203
29755991414,0cyclictest65850irq/126-lan10:45:213
29755991414,0cyclictest65850irq/126-lan08:57:563
29755991413,1cyclictest65850irq/126-lan09:14:013
29755991413,1cyclictest65850irq/126-lan08:30:193
29755991413,1cyclictest65850irq/126-lan08:10:163
29750991412,1cyclictest743-21snmpd09:43:542
29743991414,0cyclictest743-21snmpd08:10:001
29755991313,0cyclictest65850irq/126-lan12:20:143
29755991313,0cyclictest65850irq/126-lan11:45:163
29755991313,0cyclictest65850irq/126-lan11:30:183
29755991313,0cyclictest65850irq/126-lan10:14:123
29755991313,0cyclictest65850irq/126-lan10:00:153
29755991313,0cyclictest65850irq/126-lan08:42:553
29755991312,1cyclictest65850irq/126-lan12:16:533
29755991312,1cyclictest65850irq/126-lan11:40:113
29755991312,1cyclictest65850irq/126-lan09:05:163
29755991312,1cyclictest65850irq/126-lan07:25:113
29750991313,0cyclictest743-21snmpd12:00:112
29755991212,0cyclictest65850irq/126-lan12:10:133
29755991212,0cyclictest65850irq/126-lan09:20:133
29755991211,1cyclictest65850irq/126-lan11:25:123
29755991211,1cyclictest65850irq/126-lan10:15:143
29750991212,0cyclictest743-21snmpd12:13:482
29750991212,0cyclictest743-21snmpd11:54:592
29750991212,0cyclictest743-21snmpd11:46:072
29750991212,0cyclictest743-21snmpd11:09:062
29750991212,0cyclictest743-21snmpd10:38:392
29755991111,0cyclictest65850irq/126-lan10:32:013
29755991111,0cyclictest65850irq/126-lan09:40:173
29750991111,0cyclictest743-21snmpd11:58:212
29750991111,0cyclictest743-21snmpd09:55:072
29750991111,0cyclictest743-21snmpd09:17:112
29750991111,0cyclictest743-21snmpd08:28:312
29750991111,0cyclictest743-21snmpd07:32:152
29750991111,0cyclictest743-21snmpd07:28:062
29750991111,0cyclictest20658-21cat08:05:162
29750991110,0cyclictest743-21snmpd11:11:032
29750991110,0cyclictest743-21snmpd08:51:552
29743991111,0cyclictest743-21snmpd10:46:531
29743991111,0cyclictest743-21snmpd10:26:441
29743991110,0cyclictest743-21snmpd07:59:131
2975599109,1cyclictest65850irq/126-lan08:50:133
29755991010,0cyclictest65850irq/126-lan07:50:163
29750991010,0cyclictest9603-21cat10:15:142
29750991010,0cyclictest743-21snmpd10:46:172
29750991010,0cyclictest743-21snmpd10:02:312
29750991010,0cyclictest743-21snmpd09:11:112
29750991010,0cyclictest743-21snmpd09:08:202
29750991010,0cyclictest743-21snmpd08:18:212
29750991010,0cyclictest743-21snmpd07:56:192
29750991010,0cyclictest743-21snmpd07:53:422
29750991010,0cyclictest743-21snmpd07:19:322
29750991010,0cyclictest22665-21cat08:10:132
29750991010,0cyclictest1449-21cat11:15:152
29743991010,0cyclictest743-21snmpd12:35:181
29743991010,0cyclictest743-21snmpd11:42:081
29743991010,0cyclictest743-21snmpd11:39:131
29743991010,0cyclictest743-21snmpd11:28:171
29743991010,0cyclictest743-21snmpd08:56:021
29743991010,0cyclictest743-21snmpd08:33:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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