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2025-12-08 - 02:22

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackfslot4s.osadl.org (updated Sun Dec 07, 2025 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1932821290,3chrt19324-21munin-plugin-st08:00:010
1006521280,2sleep010066-21sh12:40:000
292621220,3chrt2922-21ntpq09:31:400
1799221170,2chrt17995-21tail09:00:240
2816021160,3chrt28157-21ssh10:16:530
596921110,2chrt5952-21ntpq12:31:400
522521100,2chrt5224-21sshd11:31:420
882221060,1sleep08824-21processes09:42:140
118521060,2sleep01186-21sh11:25:110
2106121010,2chrt21062-21sh09:06:120
8582820,2sleep0861-21cut10:26:050
123572820,2chrt12338-21ntpq10:46:300
166742810,2sleep016675-21sh09:56:150
312022800,2sleep031205-21wc09:25:030
312332760,2sleep031234-21stty11:20:530
323552720,2sleep032357-21sed09:26:120
72372710,2sleep07239-21cut11:35:510
139802700,2sleep013981-21sh09:51:230
167472690,2sleep016750-21sort11:52:190
212902670,2sleep021288-21irqrtprio12:01:030
107152620,1sleep010716-21cat09:46:040
162212550,2sleep016222-21cat08:55:480
156802514,6sleep015682-21ssh10:52:210
269742502,40sleep026980-21ssh09:16:400
26521904920,22cyclictest0-21swapper09:37:490
26521904920,21cyclictest0-21swapper10:43:350
277762480,2chrt27774-21/usr/sbin/munin08:16:150
26521904819,22cyclictest0-21swapper12:29:330
26521904819,22cyclictest0-21swapper11:02:300
76482470,3chrt7649-21irqstats07:35:460
26521904716,23cyclictest0-21swapper10:22:400
2499524712,18sleep025008-21ntpq07:05:390
26521904617,22cyclictest0-21swapper12:22:560
26521904617,22cyclictest0-21swapper11:13:290
26521904617,21cyclictest0-21swapper12:13:560
2652190447,28cyclictest32606-21/usr/sbin/munin08:25:380
2652190444,20cyclictest21649-21diskstats10:05:500
26521904419,17cyclictest869-21snmpd08:05:520
26521904418,19cyclictest869-21snmpd10:36:460
26521904416,11cyclictest869-21snmpd08:10:540
2652190436,18cyclictest0-21swapper11:08:180
2652190435,10cyclictest16513-21apt-get10:55:490
26521904318,19cyclictest11522-21sh11:43:110
26521904314,22cyclictest0-21swapper10:13:080
26521904314,22cyclictest0-21swapper10:03:270
26521904313,23cyclictest0-21swapper09:12:540
297962420,1sleep029797-21uname12:16:080
2652190425,30cyclictest13017-21ntpq07:46:080
2652190425,18cyclictest31551-21munin-run07:20:020
2652190424,19cyclictest32200-21hddtemp_smartct07:20:400
2652190424,19cyclictest13320-21ntpq11:46:150
26521904218,16cyclictest18936-21rm11:56:270
26521904217,17cyclictest28122-21ssh11:15:370
26521904217,16cyclictest0-21swapper08:30:330
26521904215,18cyclictest869-21snmpd08:41:030
26521904212,13cyclictest24327-21memory12:06:090
2652190415,27cyclictest31099-21ntpq08:21:010
2652190414,10cyclictest2692-21memory07:25:480
26521904113,21cyclictest0-21swapper10:33:310
2652190403,10cyclictest19723-21apt-get08:01:040
26521904018,16cyclictest0-21swapper08:50:230
26521904014,17cyclictest14499-21telnet07:50:230
2652190397,11cyclictest12629-21munin-run08:50:010
2652190387,11cyclictest4311-21apt-get07:30:120
26521903814,15cyclictest5421-21telnet08:35:380
26521903813,18cyclictest27624-21ntpq07:10:550
2652190376,11cyclictest10512-21ntp_states07:41:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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