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2025-11-18 - 14:02

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #7

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 all highest latencies:
System rack8slot7s.osadl.org (updated Tue Nov 18, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12425992422,2cyclictest55650irq/125-lan22:04:260
12425992419,4cyclictest55650irq/125-lan00:30:150
12425992322,1cyclictest55650irq/125-lan21:38:290
12425992321,2cyclictest55650irq/125-lan23:10:250
12425992221,1cyclictest55650irq/125-lan23:18:180
12425992221,1cyclictest55650irq/125-lan21:48:570
12425992220,2cyclictest55650irq/125-lan21:50:560
12425992220,2cyclictest55650irq/125-lan21:26:310
12425992220,2cyclictest55650irq/125-lan21:19:210
12425992218,4cyclictest55650irq/125-lan22:40:220
12425992217,4cyclictest55650irq/125-lan22:15:220
12425992118,3cyclictest55650irq/125-lan22:25:510
12425992118,2cyclictest55650irq/125-lan23:35:050
12425992117,3cyclictest55650irq/125-lan22:55:010
12425992116,4cyclictest55650irq/125-lan22:20:160
12425992019,1cyclictest55650irq/125-lan23:52:370
12425992019,1cyclictest55650irq/125-lan23:49:020
12425992019,1cyclictest55650irq/125-lan23:34:290
12425992019,1cyclictest55650irq/125-lan22:51:390
12425992019,1cyclictest55650irq/125-lan00:12:020
12425992018,2cyclictest55650irq/125-lan23:55:230
12425992018,2cyclictest55650irq/125-lan23:40:420
12425992018,2cyclictest55650irq/125-lan23:25:140
12425992018,2cyclictest55650irq/125-lan21:30:360
12425992018,2cyclictest55650irq/125-lan21:21:020
12425992017,3cyclictest55650irq/125-lan00:07:540
12425992012,8cyclictest55650irq/125-lan22:45:230
12425991918,1cyclictest55650irq/125-lan22:06:070
12425991918,1cyclictest55650irq/125-lan21:07:460
12425991918,1cyclictest55650irq/125-lan00:29:070
12425991918,1cyclictest55650irq/125-lan00:21:550
12425991918,1cyclictest55650irq/125-lan00:02:190
12425991917,2cyclictest55650irq/125-lan23:07:520
12425991917,2cyclictest55650irq/125-lan22:12:550
12425991917,2cyclictest55650irq/125-lan21:42:450
12425991917,1cyclictest55650irq/125-lan22:30:070
12425991916,2cyclictest55650irq/125-lan20:51:190
12425991817,1cyclictest55650irq/125-lan23:20:130
12425991817,1cyclictest55650irq/125-lan23:00:520
12425991817,1cyclictest55650irq/125-lan21:55:350
12425991817,1cyclictest55650irq/125-lan20:57:200
12425991817,1cyclictest55650irq/125-lan19:43:180
12425991817,1cyclictest55650irq/125-lan19:20:200
12425991817,1cyclictest55650irq/125-lan00:35:460
12425991816,2cyclictest55650irq/125-lan22:36:030
12425991816,2cyclictest55650irq/125-lan20:46:360
12425991816,2cyclictest55650irq/125-lan20:33:430
12425991816,2cyclictest55650irq/125-lan20:21:310
12425991816,2cyclictest55650irq/125-lan20:14:440
12425991816,2cyclictest55650irq/125-lan19:34:280
12425991716,1cyclictest55650irq/125-lan21:10:360
12425991716,1cyclictest55650irq/125-lan21:04:000
12425991716,1cyclictest55650irq/125-lan20:36:100
12425991716,1cyclictest55650irq/125-lan20:07:310
12425991716,1cyclictest55650irq/125-lan19:55:210
12425991716,1cyclictest55650irq/125-lan19:37:380
12425991716,1cyclictest55650irq/125-lan00:15:010
12425991715,2cyclictest55650irq/125-lan19:50:180
12425991615,1cyclictest55650irq/125-lan20:40:340
12425991615,1cyclictest55650irq/125-lan20:25:160
12425991615,1cyclictest55650irq/125-lan19:15:180
12425991514,1cyclictest55650irq/125-lan20:00:210
12425991514,1cyclictest55650irq/125-lan19:10:200
12429991414,0cyclictest294-21hwrng23:42:551
12425991413,1cyclictest55650irq/125-lan20:15:100
12425991413,1cyclictest55650irq/125-lan19:25:150
12429991313,0cyclictest294-21hwrng19:57:391
12429991111,0cyclictest294-21hwrng21:09:191
1242999106,3cyclictest703-21snmpd23:56:021
1242599100,5cyclictest26227-21ntpq19:45:210
124299998,1cyclictest703-21snmpd23:03:301
124299998,1cyclictest703-21snmpd22:08:261
124299998,1cyclictest703-21snmpd21:57:411
124299998,1cyclictest703-21snmpd21:37:281
124299998,1cyclictest703-21snmpd21:21:041
124299998,1cyclictest703-21snmpd20:53:241
124299998,1cyclictest703-21snmpd20:20:441
124299998,1cyclictest703-21snmpd20:12:471
124299998,1cyclictest703-21snmpd20:06:261
124299998,1cyclictest703-21snmpd00:07:441
124299996,2cyclictest703-21snmpd22:50:251
124299996,2cyclictest703-21snmpd22:18:511
124299996,2cyclictest703-21snmpd21:18:491
124299996,2cyclictest703-21snmpd19:43:281
124299995,3cyclictest703-21snmpd00:31:031
124299987,1cyclictest703-21snmpd23:45:311
124299987,1cyclictest703-21snmpd21:54:171
124299987,1cyclictest703-21snmpd20:38:151
124299987,1cyclictest703-21snmpd19:50:431
124299987,1cyclictest703-21snmpd19:45:551
124299987,1cyclictest703-21snmpd19:31:251
124299987,1cyclictest703-21snmpd00:20:061
124299987,1cyclictest681-21ntpd00:25:181
124299987,1cyclictest478-21gmain23:25:461
124299987,1cyclictest31642-21ntp_kernel_err20:00:171
124299987,1cyclictest24544-21grep22:45:201
124299987,1cyclictest23216-21netstat21:40:161
124299987,1cyclictest22093-21gltestperf19:35:151
124299987,1cyclictest13649-21run-parts23:40:001
124299987,1cyclictest12856-21idleruntime21:30:151
124299986,2cyclictest703-21snmpd22:25:361
124299986,2cyclictest703-21snmpd20:45:331
124299986,1cyclictest29440-21cron21:15:001
124299986,1cyclictest17117-21ntp_kernel_err23:10:171
124299986,1cyclictest12783-21fschecks_time19:10:151
124299985,3cyclictest703-21snmpd00:36:301
124299985,3cyclictest28347-21ntpq21:45:161
124299985,2cyclictest703-21snmpd23:08:511
124299985,2cyclictest703-21snmpd22:23:361
124299985,2cyclictest703-21snmpd19:28:551
124299985,2cyclictest703-21snmpd19:20:181
124299984,3cyclictest703-21snmpd22:33:211
124299984,3cyclictest703-21snmpd20:33:241
124299977,0cyclictest703-21snmpd20:58:271
124299977,0cyclictest294-21hwrng22:44:331
124299977,0cyclictest18252-21latency_hist22:40:001
124299976,1cyclictest703-21snmpd20:41:061
124299976,1cyclictest703-21snmpd19:15:451
124299976,1cyclictest703-21snmpd00:01:501
124299976,1cyclictest21337-21/usr/sbin/munin23:15:191
124299976,1cyclictest21227-21gcc22:10:191
124299976,1cyclictest10456-21cpuspeed_turbos22:00:121
124299975,2cyclictest703-21snmpd21:26:251
124299973,4cyclictest11662-21grep00:10:171
124299966,0cyclictest708-21munin-node22:55:241
124299966,0cyclictest703-21snmpd20:15:351
124299965,1cyclictest8890-21timerwakeupswit20:25:231
124299965,1cyclictest703-21snmpd23:50:441
124299965,1cyclictest703-21snmpd23:32:321
124299964,2cyclictest21879-21ntpq21:00:191
124299951,1cyclictest26339-21apt-get23:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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