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2026-06-12 - 19:24

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 Fri Jun 12, 2026 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7932991918,1cyclictest65850irq/126-lan11:40:011
7932991817,1cyclictest65850irq/126-lan10:10:121
7932991817,1cyclictest65850irq/126-lan08:40:221
7932991817,1cyclictest65850irq/126-lan08:20:211
7932991817,1cyclictest65850irq/126-lan07:55:171
7932991717,0cyclictest65850irq/126-lan11:55:011
7932991717,0cyclictest65850irq/126-lan09:29:251
7932991717,0cyclictest65850irq/126-lan07:10:161
7932991716,1cyclictest65850irq/126-lan12:35:121
7932991716,1cyclictest65850irq/126-lan12:05:161
7932991716,1cyclictest65850irq/126-lan09:50:201
7932991716,1cyclictest65850irq/126-lan07:45:141
7932991616,0cyclictest65850irq/126-lan12:30:091
7932991616,0cyclictest65850irq/126-lan12:15:131
7932991616,0cyclictest65850irq/126-lan09:45:171
7932991616,0cyclictest65850irq/126-lan08:00:141
7932991615,1cyclictest65850irq/126-lan11:20:121
7932991615,1cyclictest65850irq/126-lan11:10:121
7932991615,1cyclictest65850irq/126-lan10:20:171
7932991615,1cyclictest65850irq/126-lan10:15:171
7932991615,1cyclictest65850irq/126-lan09:15:161
7932991615,1cyclictest65850irq/126-lan08:45:241
7932991615,1cyclictest65850irq/126-lan08:05:231
7932991615,1cyclictest65850irq/126-lan07:40:131
7932991615,1cyclictest65850irq/126-lan07:20:001
7932991515,0cyclictest65850irq/126-lan11:45:131
7932991515,0cyclictest65850irq/126-lan11:30:191
7932991515,0cyclictest65850irq/126-lan10:06:261
7932991514,1cyclictest65850irq/126-lan12:00:121
7932991514,1cyclictest65850irq/126-lan11:54:241
7932991514,1cyclictest65850irq/126-lan11:15:091
7932991514,1cyclictest65850irq/126-lan10:50:211
7932991514,1cyclictest65850irq/126-lan10:40:161
7932991514,1cyclictest65850irq/126-lan10:25:171
7932991514,1cyclictest65850irq/126-lan09:40:161
7932991514,1cyclictest65850irq/126-lan09:35:121
7932991514,1cyclictest65850irq/126-lan07:35:151
7932991414,0cyclictest65850irq/126-lan10:30:121
7932991414,0cyclictest65850irq/126-lan09:00:011
7932991414,0cyclictest65850irq/126-lan08:10:131
7932991413,1cyclictest65850irq/126-lan11:35:191
7932991413,1cyclictest65850irq/126-lan11:00:131
7932991413,1cyclictest65850irq/126-lan10:45:161
7932991413,1cyclictest65850irq/126-lan10:35:201
7932991413,1cyclictest65850irq/126-lan09:20:131
793699132,7cyclictest20630-21seq08:57:322
7932991313,0cyclictest65850irq/126-lan10:56:251
7932991313,0cyclictest65850irq/126-lan08:55:181
7932991313,0cyclictest65850irq/126-lan08:50:181
7932991313,0cyclictest65850irq/126-lan08:35:221
7932991313,0cyclictest65850irq/126-lan08:28:261
7932991313,0cyclictest65850irq/126-lan07:52:251
7932991313,0cyclictest65850irq/126-lan07:20:201
7932991312,1cyclictest65850irq/126-lan10:00:141
7932991312,1cyclictest65850irq/126-lan09:15:001
7932991312,1cyclictest65850irq/126-lan08:30:111
7932991312,1cyclictest65850irq/126-lan07:30:201
7932991212,0cyclictest65850irq/126-lan12:20:131
792799128,4cyclictest22464-21cut11:40:000
793699114,4cyclictest22742-21cat07:45:142
793699112,6cyclictest14502-21seq08:42:152
7932991111,0cyclictest65850irq/126-lan07:27:251
792799110,7cyclictest8792-21mailstats09:45:190
792799110,6cyclictest1587-21taskset10:48:010
793699108,2cyclictest743-21snmpd10:20:452
793699108,2cyclictest743-21snmpd08:38:082
793699108,2cyclictest743-21snmpd08:06:402
793699100,6cyclictest23847-21ntpq09:05:162
793299109,1cyclictest65850irq/126-lan09:55:131
793299109,1cyclictest65850irq/126-lan08:15:131
7932991010,0cyclictest65850irq/126-lan11:05:091
7932991010,0cyclictest65850irq/126-lan09:30:251
792799108,2cyclictest741-21lldpd12:29:320
792799106,4cyclictest743-21snmpd09:08:420
792799105,5cyclictest6587-21cat11:00:150
792799102,7cyclictest557-21NetworkManager07:34:080
792799100,8cyclictest3676-21/usr/sbin/munin09:35:100
792799100,8cyclictest25886-21seq07:52:510
792799100,8cyclictest21406-21cat07:40:230
792799100,6cyclictest32282-21cut10:45:000
792799100,6cyclictest31697-21taskset09:23:550
792799100,6cyclictest30170-21cut10:40:000
792799100,6cyclictest21314-21grep10:15:200
792799100,6cyclictest17606-21awk11:25:200
792799100,6cyclictest12724-21vmstat12:30:190
79419998,1cyclictest743-21snmpd08:16:523
79419998,1cyclictest741-21lldpd08:52:413
79419996,3cyclictest743-21snmpd08:03:253
79369998,1cyclictest741-21lldpd09:35:132
79369997,2cyclictest743-21snmpd11:03:132
79369996,3cyclictest743-21snmpd10:34:422
79369996,2cyclictest743-21snmpd07:34:482
79369993,3cyclictest0-21swapper/210:05:032
79369990,2cyclictest2893-21taskset12:08:362
79369990,2cyclictest19251-21grep07:35:222
79369990,2cyclictest18671-21sort10:10:122
79329998,1cyclictest65850irq/126-lan09:05:181
79279998,1cyclictest743-21snmpd11:41:180
79279998,1cyclictest743-21snmpd10:59:160
79279997,2cyclictest743-21snmpd07:22:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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