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2026-03-26 - 04:54

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 Mar 26, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1014992018,2cyclictest743-21snmpd00:39:431
1023991918,1cyclictest65850irq/126-lan19:55:153
1023991818,0cyclictest65850irq/126-lan00:00:103
1023991817,1cyclictest65850irq/126-lan23:55:203
1023991817,1cyclictest65850irq/126-lan22:15:183
1023991817,1cyclictest65850irq/126-lan21:45:113
1023991817,1cyclictest65850irq/126-lan20:33:073
1023991817,1cyclictest65850irq/126-lan00:05:163
1023991717,0cyclictest65850irq/126-lan23:10:123
1023991717,0cyclictest65850irq/126-lan22:10:183
1023991717,0cyclictest65850irq/126-lan21:55:163
1023991717,0cyclictest65850irq/126-lan20:20:113
1023991717,0cyclictest65850irq/126-lan19:35:223
1023991716,1cyclictest65850irq/126-lan23:15:173
1023991716,1cyclictest65850irq/126-lan21:40:143
1023991616,0cyclictest65850irq/126-lan22:20:113
1023991616,0cyclictest65850irq/126-lan20:40:173
1023991616,0cyclictest65850irq/126-lan20:25:143
1023991615,1cyclictest65850irq/126-lan23:20:163
1023991615,1cyclictest65850irq/126-lan23:05:173
1023991615,1cyclictest65850irq/126-lan20:40:003
1023991615,1cyclictest65850irq/126-lan20:15:173
1023991615,1cyclictest65850irq/126-lan19:45:143
1023991615,1cyclictest65850irq/126-lan00:10:133
1023991515,0cyclictest65850irq/126-lan23:45:273
1023991515,0cyclictest65850irq/126-lan23:35:213
1023991515,0cyclictest65850irq/126-lan22:31:283
1023991515,0cyclictest65850irq/126-lan21:25:163
1023991515,0cyclictest65850irq/126-lan19:20:153
1023991514,1cyclictest65850irq/126-lan22:40:193
1023991514,1cyclictest65850irq/126-lan21:10:183
1023991514,1cyclictest65850irq/126-lan21:00:163
1023991514,1cyclictest65850irq/126-lan20:50:013
1023991514,1cyclictest65850irq/126-lan19:50:113
1023991514,1cyclictest65850irq/126-lan19:15:113
1023991414,0cyclictest65850irq/126-lan22:50:203
1023991414,0cyclictest65850irq/126-lan00:30:213
1023991414,0cyclictest65850irq/126-lan00:20:193
1023991413,1cyclictest65850irq/126-lan21:05:113
1023991413,1cyclictest65850irq/126-lan19:40:153
1023991413,1cyclictest65850irq/126-lan19:10:133
1023991313,0cyclictest65850irq/126-lan23:33:283
1023991313,0cyclictest65850irq/126-lan22:45:133
1023991313,0cyclictest65850irq/126-lan22:25:133
1023991313,0cyclictest65850irq/126-lan21:36:173
1023991313,0cyclictest65850irq/126-lan21:20:113
1023991313,0cyclictest65850irq/126-lan20:55:163
1023991313,0cyclictest65850irq/126-lan20:05:173
1023991313,0cyclictest65850irq/126-lan00:35:173
1023991313,0cyclictest65850irq/126-lan00:25:123
1023991312,1cyclictest65850irq/126-lan23:40:153
1023991312,1cyclictest65850irq/126-lan23:25:203
1023991312,1cyclictest65850irq/126-lan20:00:173
1023991312,1cyclictest65850irq/126-lan19:25:163
1023991211,1cyclictest65850irq/126-lan22:55:123
1023991211,1cyclictest65850irq/126-lan22:00:163
1023991211,1cyclictest65850irq/126-lan21:31:273
1023991211,1cyclictest65850irq/126-lan20:10:203
1023991211,1cyclictest65850irq/126-lan19:30:153
1023991111,0cyclictest65850irq/126-lan22:05:163
1023991110,1cyclictest65850irq/126-lan23:00:183
102399109,1cyclictest65850irq/126-lan23:50:123
1023991010,0cyclictest65850irq/126-lan21:18:283
1023991010,0cyclictest65850irq/126-lan20:52:563
10239998,1cyclictest65850irq/126-lan22:35:123
10189998,1cyclictest741-21lldpd21:54:592
10189998,1cyclictest741-21lldpd00:37:402
10149998,1cyclictest743-21snmpd23:42:301
10149998,1cyclictest743-21snmpd22:14:081
10089998,1cyclictest743-21snmpd20:33:530
10239988,0cyclictest741-21lldpd21:51:413
10239988,0cyclictest65850irq/126-lan00:19:363
10189988,0cyclictest743-21snmpd21:39:202
10189988,0cyclictest743-21snmpd19:55:192
10189988,0cyclictest741-21lldpd23:34:432
10189988,0cyclictest741-21lldpd20:56:322
10189988,0cyclictest741-21lldpd19:41:512
10189988,0cyclictest741-21lldpd00:26:232
10189986,2cyclictest743-21snmpd22:52:462
10189986,2cyclictest743-21snmpd22:40:452
10189986,2cyclictest743-21snmpd22:17:062
10189986,2cyclictest743-21snmpd21:04:422
10189986,2cyclictest743-21snmpd20:08:242
10189986,2cyclictest743-21snmpd20:01:492
10189986,2cyclictest743-21snmpd19:29:452
10189986,2cyclictest717-21ntpd23:41:342
10189986,2cyclictest717-21ntpd22:36:292
10189986,2cyclictest717-21ntpd22:29:282
10189986,2cyclictest30235-21cat00:15:142
10149988,0cyclictest743-21snmpd22:58:101
10149988,0cyclictest743-21snmpd20:31:231
10149988,0cyclictest741-21lldpd23:34:151
10149988,0cyclictest741-21lldpd22:01:571
10149988,0cyclictest741-21lldpd19:43:191
10149987,1cyclictest743-21snmpd22:37:431
10149987,1cyclictest743-21snmpd20:48:121
10149987,1cyclictest743-21snmpd00:00:101
10149987,1cyclictest11648-21ntp_kernel_err20:50:151
10149986,2cyclictest743-21snmpd23:23:321
10149986,2cyclictest743-21snmpd21:53:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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