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2026-05-09 - 11:29
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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
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Sat May 09, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209361499130,11cyclictest0-21swapper/320:20:123
209361499127,1cyclictest0-21swapper/323:10:113
209361499120,11cyclictest0-21swapper/323:50:013
209361499120,11cyclictest0-21swapper/323:20:113
209361499120,11cyclictest0-21swapper/321:00:123
209361499120,11cyclictest0-21swapper/319:50:183
209361499120,11cyclictest0-21swapper/319:20:003
2093614991111,0cyclictest0-21swapper/321:55:103
2093614991111,0cyclictest0-21swapper/321:36:443
2093614991110,0cyclictest0-21swapper/320:50:113
209361499110,10cyclictest0-21swapper/323:00:013
209361499110,10cyclictest0-21swapper/321:05:023
209361499110,10cyclictest0-21swapper/320:30:183
209361499110,10cyclictest0-21swapper/320:15:113
209361499110,0cyclictest0-21swapper/322:45:123
209361499110,0cyclictest0-21swapper/319:30:173
209361499110,0cyclictest0-21swapper/300:25:123
209361499110,0cyclictest0-21swapper/300:05:013
209361499109,0cyclictest0-21swapper/300:00:003
2093614991010,0cyclictest0-21swapper/323:34:563
2093614991010,0cyclictest0-21swapper/323:15:183
2093614991010,0cyclictest0-21swapper/322:15:153
2093614991010,0cyclictest0-21swapper/322:10:113
2093614991010,0cyclictest0-21swapper/322:10:103
2093614991010,0cyclictest0-21swapper/322:00:123
2093614991010,0cyclictest0-21swapper/321:45:113
209361499100,10cyclictest0-21swapper/320:05:173
209361499100,0cyclictest0-21swapper/323:35:163
20936149999,0cyclictest0-21swapper/322:25:113
20936149999,0cyclictest0-21swapper/322:05:133
20936149999,0cyclictest0-21swapper/321:31:493
20936149999,0cyclictest0-21swapper/319:20:163
20936149998,0cyclictest0-21swapper/323:40:123
20936149998,0cyclictest0-21swapper/300:25:013
20936149990,9cyclictest0-21swapper/300:10:173
20936149990,8cyclictest0-21swapper/321:00:013
20936149990,0cyclictest0-21swapper/300:05:143
20936149988,0cyclictest0-21swapper/320:15:013
20936149988,0cyclictest0-21swapper/319:45:143
20936149988,0cyclictest0-21swapper/319:40:113
20936149988,0cyclictest0-21swapper/300:35:183
20936149988,0cyclictest0-21swapper/300:15:173
20936149980,6cyclictest0-21swapper/323:05:133
20936149977,0cyclictest0-21swapper/323:27:223
20936149977,0cyclictest0-21swapper/322:51:553
20936149977,0cyclictest0-21swapper/322:40:173
20936149977,0cyclictest0-21swapper/322:24:133
20936149977,0cyclictest0-21swapper/321:15:173
20936149977,0cyclictest0-21swapper/320:45:173
20936149977,0cyclictest0-21swapper/320:00:123
20936149977,0cyclictest0-21swapper/319:35:173
20936149977,0cyclictest0-21swapper/300:31:283
20936149976,0cyclictest0-21swapper/321:20:163
20936149970,6cyclictest0-21swapper/320:25:113
20936149970,6cyclictest0-21swapper/319:30:003
20936149966,0cyclictest0-21swapper/320:35:113
20936149965,1cyclictest0-21swapper/321:25:113
20936149960,5cyclictest0-21swapper/322:35:123
2091778261,3sleep30-21swapper/319:05:023
20936149955,0cyclictest0-21swapper/320:40:183
20936149955,0cyclictest0-21swapper/319:56:383
20936149954,0cyclictest0-21swapper/323:00:433
20936149954,0cyclictest0-21swapper/321:50:133
20936149950,4cyclictest0-21swapper/321:15:013
2191487240,3sleep12191556-21/usr/sbin/munin23:10:141
2149913240,3sleep22150090-21python321:30:172
2140772240,1sleep02140798-21apt-get21:10:110
20936149944,0cyclictest0-21swapper/321:40:503
20936149943,0cyclictest0-21swapper/323:50:123
20936149940,4cyclictest0-21swapper/319:10:113
2093435241,3sleep00-21swapper/019:09:430
2091814240,2sleep12091900-21aten_r1power_fr19:05:111
2091545242,1sleep20-21swapper/219:05:012
2195965230,2sleep12195242-21/usr/sbin/munin23:20:161
2193132230,1sleep12193158-21apt-get23:15:121
2186345230,2sleep02186354-21latency_hist23:00:020
2183398230,2sleep12183520-21ssh22:50:181
2171748230,2sleep22171817-21latency_hist22:25:022
2140926230,2sleep22141198-21df_inode21:10:132
20936149930,2cyclictest0-21swapper/322:30:123
2225039220,1sleep20-21swapper/200:30:042
2224433220,1sleep02224437-21ssh00:26:470
2222349220,0sleep20-21swapper/200:21:442
2220886220,1sleep12220912-21apt-get00:20:111
2219607220,1sleep12219757-21python300:15:201
2215471220,1sleep10-21swapper/100:05:181
2207767220,1sleep02207783-21munin-run23:50:010
2201500220,1sleep12201671-21date23:35:011
2194649220,0sleep00-21swapper/023:17:100
2191237220,0sleep00-21swapper/023:10:140
2191047220,1sleep22191073-21apt-get23:10:112
2178785220,2sleep22178268-21/usr/sbin/munin22:40:152
2176191220,1sleep12176307-21aten_r1power_po22:35:131
2174509220,0sleep00-21swapper/022:30:160
2168249220,1sleep02168331-21irqstats22:15:150
2165895220,1sleep22166160-21diskstats22:10:132
2165895220,1sleep22166160-21diskstats22:10:122
2159459220,1sleep10-21swapper/121:55:111
2151924220,1sleep12152095-21python321:35:171
2139537220,1sleep10-21swapper/121:05:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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