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2026-06-09 - 16:38

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #8

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 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 rack9slot8s.osadl.org (updated Tue Jun 09, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819502140,0irq/46-4a10000031099-21kworker/0:107:08:130
762996347,0cyclictest8107-21latency_hist11:30:030
762996345,0cyclictest81950irq/46-4a10000011:40:040
101630,0ktimersoftd/022038-21runrttasks09:27:040
762996250,0cyclictest81950irq/46-4a10000008:05:010
762996149,0cyclictest81950irq/46-4a10000009:35:010
762996149,0cyclictest81950irq/46-4a10000008:20:020
762996133,0cyclictest0-21swapper07:39:590
81950600,0irq/46-4a100000152302sleep012:15:230
762996048,0cyclictest81950irq/46-4a10000007:15:020
762995946,0cyclictest81950irq/46-4a10000008:25:280
762995929,0cyclictest8807-21apt08:00:010
81950580,0irq/46-4a1000003614-1kworker/u3:511:20:020
762995840,0cyclictest31460-21sshd10:30:170
762995839,0cyclictest10436-21munin-run11:45:020
762995826,0cyclictest16256-21sh08:50:000
81950570,0irq/46-4a10000014477-1kworker/u3:212:25:240
762995743,0cyclictest81950irq/46-4a10000011:15:030
762995740,0cyclictest7144-21munin-plugin-st07:50:020
762995737,0cyclictest19623-21chrt09:10:390
762995735,0cyclictest12086-21snmpd09:00:210
101570,0ktimersoftd/012113-21runrttasks09:44:510
762995645,0cyclictest81950irq/46-4a10000010:30:020
762995645,0cyclictest81950irq/46-4a10000007:15:160
762995636,0cyclictest13418-21munin-run12:05:010
762995625,0cyclictest10610-21seq08:11:410
762995543,0cyclictest81950irq/46-4a10000011:10:020
762995536,0cyclictest29085-21munin-run10:15:010
101550,0ktimersoftd/00-21swapper09:09:310
762995443,0cyclictest81950irq/46-4a10000009:50:010
762995442,0cyclictest81950irq/46-4a10000010:25:010
762995438,0cyclictest20485-21kworker/u2:409:20:010
762995435,0cyclictest29851-21tr10:20:010
762995435,0cyclictest26883-21sendmail-msp10:00:010
762995435,0cyclictest25668-21sshd09:51:290
762995433,0cyclictest17670-21sshd12:30:280
762995426,0cyclictest14882-21cron12:15:010
101540,0ktimersoftd/00-21swapper08:20:550
762995341,0cyclictest35150irq/20-4900000007:54:460
762995338,0cyclictest27200-21kworker/u2:310:06:260
762995336,0cyclictest4302-21seq07:30:150
762995336,0cyclictest3152-21runrttasks10:58:360
762995335,0cyclictest17134-21seq08:55:160
762995334,0cyclictest23888-21sendmail09:40:020
762995333,0cyclictest9881-21runrttasks08:06:430
762995331,0cyclictest14107-21latency_hist08:35:040
762995323,0cyclictest12086-21snmpd10:45:280
101530,0ktimersoftd/00-21swapper12:20:520
101530,0ktimersoftd/00-21swapper11:54:010
94750520,0irq/33-mmc022966-1kworker/0:0H09:20:050
762995236,0cyclictest4080-21sshd07:29:290
762995236,0cyclictest27033-21runrttasks10:00:250
762995236,0cyclictest10992-21runrttasks11:48:420
762995233,0cyclictest1121-21munin-run10:45:010
762995232,0cyclictest19051-21latency_hist12:40:030
762995222,0cyclictest3960-21runrttasks11:03:590
762995213,0cyclictest3230-21sshd07:23:280
101520,0ktimersoftd/00-21swapper11:59:560
101520,0ktimersoftd/00-21swapper08:42:100
101520,0ktimersoftd/00-21swapper08:32:020
101520,0ktimersoftd/00-21swapper07:42:300
762995135,0cyclictest32723-21runrttasks10:39:350
762995129,0cyclictest16338-21latency_hist08:50:030
101510,0ktimersoftd/00-21swapper11:27:390
762995036,0cyclictest6622-21latency_hist11:20:050
762994933,0cyclictest2535-21runrttasks10:54:360
762994930,0cyclictest13575-21sshd12:05:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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