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2026-04-09 - 03:06

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 Apr 09, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27421991918,1cyclictest65850irq/126-lan20:00:143
27421991817,1cyclictest65850irq/126-lan22:25:213
27421991817,1cyclictest65850irq/126-lan22:25:213
27421991817,1cyclictest65850irq/126-lan20:13:463
27421991817,1cyclictest65850irq/126-lan19:20:153
27421991717,0cyclictest65850irq/126-lan21:55:143
27421991717,0cyclictest65850irq/126-lan21:12:413
27421991717,0cyclictest65850irq/126-lan19:15:103
27421991716,1cyclictest65850irq/126-lan23:55:173
27421991716,1cyclictest65850irq/126-lan23:40:123
27421991716,1cyclictest65850irq/126-lan23:08:273
27421991716,1cyclictest65850irq/126-lan23:00:143
27421991716,1cyclictest65850irq/126-lan20:15:013
27421991716,1cyclictest65850irq/126-lan19:50:123
27421991716,1cyclictest65850irq/126-lan00:05:113
27421991616,0cyclictest65850irq/126-lan22:10:113
27421991616,0cyclictest65850irq/126-lan19:10:133
27421991616,0cyclictest65850irq/126-lan00:30:383
27421991615,1cyclictest65850irq/126-lan22:50:193
27421991615,1cyclictest65850irq/126-lan22:15:153
27421991615,1cyclictest65850irq/126-lan20:50:183
27421991615,1cyclictest65850irq/126-lan20:40:173
27421991515,0cyclictest65850irq/126-lan22:45:263
27421991515,0cyclictest65850irq/126-lan22:30:193
27421991515,0cyclictest65850irq/126-lan22:30:193
27421991515,0cyclictest65850irq/126-lan22:06:233
27421991515,0cyclictest65850irq/126-lan19:45:173
27421991514,1cyclictest65850irq/126-lan23:30:163
27421991514,1cyclictest65850irq/126-lan23:15:163
27421991514,1cyclictest65850irq/126-lan22:35:173
27421991514,1cyclictest65850irq/126-lan21:35:103
27421991514,1cyclictest65850irq/126-lan21:00:003
27421991514,1cyclictest65850irq/126-lan19:30:113
27421991514,1cyclictest65850irq/126-lan00:35:173
27414991515,0cyclictest743-21snmpd23:05:141
27421991414,0cyclictest65850irq/126-lan23:45:183
27421991414,0cyclictest65850irq/126-lan22:40:293
27421991414,0cyclictest65850irq/126-lan20:25:123
27421991414,0cyclictest65850irq/126-lan19:35:133
27421991414,0cyclictest65850irq/126-lan00:10:103
27421991413,1cyclictest65850irq/126-lan23:20:183
27421991413,1cyclictest65850irq/126-lan22:00:123
27421991413,1cyclictest65850irq/126-lan21:46:233
27421991413,1cyclictest65850irq/126-lan21:25:003
27421991413,1cyclictest65850irq/126-lan21:15:223
27421991413,1cyclictest65850irq/126-lan20:45:163
27421991413,1cyclictest65850irq/126-lan20:20:163
27421991413,1cyclictest65850irq/126-lan19:55:203
27421991413,1cyclictest65850irq/126-lan19:40:123
27421991413,1cyclictest65850irq/126-lan19:25:153
27421991413,1cyclictest65850irq/126-lan00:00:113
27421991313,0cyclictest65850irq/126-lan23:50:193
27421991313,0cyclictest65850irq/126-lan23:10:193
27421991313,0cyclictest65850irq/126-lan21:05:123
27421991313,0cyclictest65850irq/126-lan00:20:173
27421991313,0cyclictest65850irq/126-lan00:15:113
27421991312,1cyclictest65850irq/126-lan22:55:203
27421991312,1cyclictest65850irq/126-lan22:20:123
27421991312,1cyclictest65850irq/126-lan21:30:143
27421991312,1cyclictest65850irq/126-lan20:35:163
27421991312,1cyclictest65850irq/126-lan00:25:183
27421991212,0cyclictest65850irq/126-lan23:25:173
27421991212,0cyclictest65850irq/126-lan21:50:073
27421991212,0cyclictest65850irq/126-lan20:30:163
27421991211,1cyclictest65850irq/126-lan20:05:113
27414991212,0cyclictest743-21snmpd19:38:121
27414991212,0cyclictest743-21snmpd00:21:521
27421991111,0cyclictest65850irq/126-lan21:20:143
27414991111,0cyclictest743-21snmpd22:57:451
27414991111,0cyclictest743-21snmpd00:27:321
27414991010,0cyclictest743-21snmpd23:22:291
27414991010,0cyclictest743-21snmpd23:17:111
27414991010,0cyclictest743-21snmpd22:41:581
27414991010,0cyclictest743-21snmpd22:15:591
27414991010,0cyclictest743-21snmpd21:43:401
27414991010,0cyclictest743-21snmpd20:30:291
27414991010,0cyclictest743-21snmpd20:22:581
27414991010,0cyclictest743-21snmpd00:33:351
27414991010,0cyclictest743-21snmpd00:19:071
27414991010,0cyclictest28019-21cat19:10:131
274219999,0cyclictest65850irq/126-lan23:35:303
274199998,1cyclictest743-21snmpd23:58:362
274199998,1cyclictest741-21lldpd19:37:202
274149998,1cyclictest743-21snmpd20:59:291
274109998,1cyclictest743-21snmpd00:37:140
274219988,0cyclictest65850irq/126-lan21:40:173
274199988,0cyclictest743-21snmpd23:35:242
274199988,0cyclictest743-21snmpd00:03:552
274199988,0cyclictest741-21lldpd23:18:392
274199988,0cyclictest741-21lldpd22:03:522
274199987,1cyclictest8561-21systemctl22:20:002
274199987,1cyclictest743-21snmpd23:26:522
274199987,1cyclictest743-21snmpd23:00:472
274199987,1cyclictest743-21snmpd22:48:102
274199987,1cyclictest743-21snmpd21:46:202
274199987,1cyclictest741-21lldpd19:23:562
274199987,1cyclictest573-21in:imuxsock20:00:172
274199986,2cyclictest743-21snmpd23:10:172
274199986,2cyclictest743-21snmpd19:15:292
274199986,2cyclictest717-21ntpd20:57:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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