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2026-04-07 - 22:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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.

Total number of samples: 50.5 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 rack5slot7s.osadl.org (updated Tue Apr 07, 2026 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9489224292194,91sleep00-21swapper07:06:100
99679917523,30cyclictest23494-21apt-get08:30:190
99679916316,124cyclictest5834-21munin-run10:00:030
99679916112,124cyclictest3470-21wc09:45:040
99679916032,112cyclictest2563-21grep09:36:050
99679915919,39cyclictest32655-21apt12:40:000
99679915912,118cyclictest19126-21apt-get11:21:430
99679915817,117cyclictest15701-21apt-get11:01:230
99679915817,117cyclictest12997-21irqstats07:25:380
99679915814,26cyclictest14846-21/usr/sbin/munin10:55:130
99679915814,121cyclictest32461-21apt09:25:010
99679915814,119cyclictest29580-21memory12:20:430
99679915812,120cyclictest17194-21wc11:06:000
99679915719,111cyclictest24507-21apt-get11:50:180
99679915719,110cyclictest21070-21apt-get11:30:200
99679915715,118cyclictest15119-21munin-run07:40:020
99679915712,29cyclictest11197-21find10:30:550
99679915618,115cyclictest27663-21irqstats08:55:360
99679915615,117cyclictest22560-21apt-get11:41:270
99679915612,25cyclictest16687-21/usr/sbin/munin07:46:520
99679915610,106cyclictest10654-21sshd10:28:420
99679915521,27cyclictest6751-21apt-get10:05:190
99679915518,96cyclictest30828-21apt-get12:31:020
99679915515,116cyclictest17730-21diskstats11:10:290
99679915514,26cyclictest13620-21/usr/sbin/munin07:30:380
99679915514,117cyclictest18713-21awk11:15:500
99679915423,23cyclictest0-21swapper09:31:090
99679915420,104cyclictest25905-21apt-get08:45:230
99679915416,100cyclictest14673-21munin-run10:55:020
99679915415,118cyclictest12178-21sed10:36:030
99679915415,115cyclictest17173-21diskstats07:50:390
99679915413,25cyclictest9177-21/usr/sbin/munin10:20:110
99679915315,23cyclictest18923-21memory08:00:440
99679915314,116cyclictest27821-21df_inode12:10:280
99679915312,23cyclictest19647-21irqstats08:05:390
99679915312,118cyclictest10756-21latency_hist07:15:010
99679915312,117cyclictest24397-21modprobe11:50:000
99679915311,26cyclictest28642-21forks09:01:030
99679915219,27cyclictest21241-21irqstats08:15:390
99679915217,23cyclictest3646-21df_inode09:45:280
99679915216,22cyclictest8342-21apt-get10:15:180
99679915216,20cyclictest32461-21apt-get09:25:370
99679915216,113cyclictest31648-21munin-run09:20:020
99679915215,23cyclictest15348-21diskstats07:40:320
99679915214,100cyclictest7719-21irqstats10:10:390
99679915118,26cyclictest30141-21apt-get09:10:130
99679915117,110cyclictest25540-21memory11:55:430
99679915117,106cyclictest22700-21apt-get08:25:180
99679915116,26cyclictest24977-21modprobe08:40:010
99679915116,26cyclictest12725-21munin-run07:25:020
99679915112,97cyclictest22560-21apt11:40:010
99679915019,27cyclictest22015-21diskstats08:20:350
99679915019,108cyclictest26292-21irqstats12:00:380
99679915016,114cyclictest18561-21/usr/sbin/munin08:00:040
99679915016,109cyclictest30137-21apt-get12:25:130
99679915014,27cyclictest25109-21/usr/sbin/munin08:40:360
99679915013,24cyclictest5951-21/usr/sbin/munin10:00:360
99679915011,23cyclictest27171-21sort12:05:460
99679914913,23cyclictest28507-21/usr/sbin/munin12:15:370
99679914818,24cyclictest26700-21apt-get08:50:170
99679914817,106cyclictest13183-21apt-get10:45:180
99679914812,25cyclictest20560-21tr11:25:550
99679914773,51cyclictest30014-21awk09:06:120
99679914710,115cyclictest13034-21head10:41:030
99679914617,24cyclictest4338-21apt-get09:50:180
99679914616,45cyclictest10774-21munin-node07:15:080
99679914417,24cyclictest20382-21df_inode08:10:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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