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2026-05-08 - 10:48
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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 Fri May 08, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
217960299140,12cyclictest0-21swapper/320:35:123
217960299130,12cyclictest0-21swapper/323:05:123
217960299130,12cyclictest0-21swapper/321:10:003
2179602991211,0cyclictest0-21swapper/319:35:113
217960299120,1cyclictest0-21swapper/321:45:123
217960299120,11cyclictest0-21swapper/323:50:203
217960299120,11cyclictest0-21swapper/321:50:123
217960299120,11cyclictest0-21swapper/321:40:143
217960299120,11cyclictest0-21swapper/319:35:003
217960299120,11cyclictest0-21swapper/300:10:123
2179602991111,0cyclictest0-21swapper/322:05:133
2179602991111,0cyclictest0-21swapper/320:15:133
2179602991110,0cyclictest0-21swapper/321:00:183
217960299110,10cyclictest0-21swapper/323:55:193
217960299110,0cyclictest0-21swapper/319:40:183
217960299109,0cyclictest0-21swapper/322:10:193
2179602991010,0cyclictest0-21swapper/321:35:123
2179602991010,0cyclictest0-21swapper/321:30:163
2179602991010,0cyclictest0-21swapper/320:45:203
217960299100,10cyclictest0-21swapper/322:30:193
217960299100,0cyclictest0-21swapper/323:20:183
217960299100,0cyclictest0-21swapper/321:55:123
217960299100,0cyclictest0-21swapper/300:25:133
217960299100,0cyclictest0-21swapper/300:25:123
21796029999,0cyclictest0-21swapper/323:40:013
21796029999,0cyclictest0-21swapper/323:00:163
21796029999,0cyclictest0-21swapper/319:55:183
21796029999,0cyclictest0-21swapper/319:14:553
21796029999,0cyclictest0-21swapper/300:40:023
21796029999,0cyclictest0-21swapper/300:25:013
21796029999,0cyclictest0-21swapper/300:10:023
21796029998,0cyclictest0-21swapper/323:45:123
21796029990,8cyclictest0-21swapper/321:05:213
21796029990,0cyclictest0-21swapper/320:20:183
21796029988,0cyclictest0-21swapper/323:30:143
21796029988,0cyclictest0-21swapper/323:00:013
21796029988,0cyclictest0-21swapper/321:15:203
21796029988,0cyclictest0-21swapper/319:50:173
21796029988,0cyclictest0-21swapper/319:45:183
21796029988,0cyclictest0-21swapper/300:30:183
21796029988,0cyclictest0-21swapper/300:30:183
21796029980,7cyclictest0-21swapper/322:45:133
21796029980,7cyclictest0-21swapper/300:19:043
21796029980,0cyclictest0-21swapper/320:30:113
21796029977,0cyclictest0-21swapper/323:29:013
21796029977,0cyclictest0-21swapper/322:35:183
21796029977,0cyclictest0-21swapper/320:40:173
21796029977,0cyclictest0-21swapper/320:25:113
21796029977,0cyclictest0-21swapper/320:00:163
21796029976,0cyclictest0-21swapper/322:25:103
21796029970,0cyclictest0-21swapper/320:05:183
2177812271,4sleep30-21swapper/319:05:123
21796029966,0cyclictest0-21swapper/322:20:153
21796029966,0cyclictest0-21swapper/322:03:543
21796029966,0cyclictest0-21swapper/321:20:123
21796029966,0cyclictest0-21swapper/320:10:113
21796029966,0cyclictest0-21swapper/319:15:213
21796029955,0cyclictest0-21swapper/323:10:203
21796029954,0cyclictest0-21swapper/322:50:173
21796029954,0cyclictest0-21swapper/320:55:153
21796029954,0cyclictest0-21swapper/319:25:143
21796029954,0cyclictest0-21swapper/300:01:473
21796029950,4cyclictest0-21swapper/323:40:173
21796029950,4cyclictest0-21swapper/319:20:173
2178760251,2sleep20-21swapper/219:05:192
2260848240,3sleep22260960-21/usr/sbin/munin22:30:202
21796029944,0cyclictest0-21swapper/321:25:203
21796029943,0cyclictest0-21swapper/322:40:153
21796029941,2cyclictest0-21swapper/323:15:123
21796029940,3cyclictest2253779-21chrt22:15:033
21796029940,2cyclictest0-21swapper/320:50:123
2179194243,1sleep10-21swapper/119:06:461
2178557241,1sleep00-21swapper/019:05:180
2269126230,2sleep12269234-21kernelversion22:50:171
2229515230,1sleep02210979-21kworker/0:1+events21:15:170
2314353220,1sleep00-21swapper/000:37:420
2311751220,1sleep22311912-21unixbench_multi00:30:192
2311751220,1sleep22311912-21unixbench_multi00:30:192
2308760220,1sleep12309047-21df00:25:141
2308760220,1sleep12309047-21df00:25:141
2304993220,1sleep02305185-21/usr/sbin/munin00:15:160
2301005220,1sleep12301113-21awk00:05:171
2300272220,0sleep00-21swapper/000:05:120
2286133220,1sleep12286269-21memory23:30:181
2282100220,1sleep02282249-21ntpq23:20:170
2281203220,1sleep02281263-21munin-run23:20:020
2277763220,1sleep02277915-21memory23:10:160
2274693220,1sleep12275028-21apt-config23:05:011
2258427220,1sleep02258541-21cat22:25:140
2254419220,1sleep22254569-21ntp_states22:15:192
2243754220,1sleep22243880-21ntp_states21:50:172
2235447220,1sleep02235601-21ntp_states21:30:190
2228142220,0sleep20-21swapper/221:11:072
2226754220,1sleep12226780-21apt-get21:10:101
2225292220,1sleep10-21swapper/121:05:171
2225095220,0sleep00-21swapper/021:05:170
2217354220,0sleep00-21swapper/020:45:150
2215185220,1sleep22215432-21diskstats20:40:132
2214731220,1sleep22214777-21sendmail-msp20:40:022
2211618220,1sleep12211771-21memory20:30:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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