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2026-07-04 - 13:01
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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 50 highest latencies:
System rack5slot2.osadl.org (updated Sat Jul 04, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122852204189,11sleep10-21swapper/119:08:591
120232186170,11sleep00-21swapper/019:05:370
120922185168,12sleep30-21swapper/319:06:303
120302185168,13sleep20-21swapper/219:05:442
231382480,0sleep00-21swapper/000:14:000
255582470,0sleep325531-21munin-run20:40:013
81872460,0sleep08189-21sh21:25:190
90322450,0sleep20-21swapper/222:45:462
78422430,0sleep00-21swapper/000:05:400
297472430,0sleep041ktimersoftd/020:45:170
11282400,0sleep01107-21ssh22:10:140
125269982,3cyclictest9931-21perf00:40:000
125369955,0cyclictest0-21swapper/321:22:243
125369950,5cyclictest0-21swapper/320:30:173
125369950,4cyclictest25802-21df_inode00:15:123
125369950,4cyclictest0-21swapper/321:55:133
125369950,4cyclictest0-21swapper/320:25:123
125369950,0cyclictest0-21swapper/323:43:413
125369950,0cyclictest0-21swapper/323:19:493
125329955,0cyclictest0-21swapper/222:40:322
125329955,0cyclictest0-21swapper/200:25:442
125329950,5cyclictest0-21swapper/223:28:512
125329950,5cyclictest0-21swapper/223:03:062
125329950,5cyclictest0-21swapper/222:08:582
125329950,5cyclictest0-21swapper/200:33:002
125329950,0cyclictest0-21swapper/223:42:222
125329950,0cyclictest0-21swapper/222:58:352
125279951,2cyclictest0-21swapper/119:10:111
125279950,5cyclictest0-21swapper/123:36:571
125279950,5cyclictest0-21swapper/122:27:491
125279950,5cyclictest0-21swapper/100:33:321
125279950,5cyclictest0-21swapper/100:11:511
125269952,2cyclictest0-21swapper/022:30:100
125269951,4cyclictest0-21swapper/021:50:120
125369944,0cyclictest0-21swapper/322:35:173
125369944,0cyclictest0-21swapper/322:20:273
125369944,0cyclictest0-21swapper/321:26:543
125369942,1cyclictest1724-21ssh22:58:543
125369941,3cyclictest22606-21sh22:52:583
125369940,4cyclictest4131-21perl19:55:123
125369940,4cyclictest2170-21python00:35:183
125369940,4cyclictest14382-21ssh23:53:213
125369940,4cyclictest14382-21ssh23:53:203
125369940,4cyclictest13412-21perl22:00:133
125369940,4cyclictest1076-21sed23:30:153
125369940,4cyclictest0-21swapper/323:55:103
125369940,4cyclictest0-21swapper/323:10:023
125369940,4cyclictest0-21swapper/322:42:333
125369940,4cyclictest0-21swapper/321:45:113
125369940,4cyclictest0-21swapper/321:37:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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