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2025-12-05 - 11:12
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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 100 highest latencies:
System rack1slot3.osadl.org (updated Fri Dec 05, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207246299136,5cyclictest0-21swapper/321:30:183
207246299130,12cyclictest0-21swapper/320:30:183
207246299130,11cyclictest0-21swapper/322:10:153
207246299130,11cyclictest0-21swapper/321:55:153
207246299120,1cyclictest0-21swapper/323:35:133
207246299120,11cyclictest69450irq/121-eno123:13:283
207246299120,11cyclictest69450irq/121-eno100:20:133
207246299120,11cyclictest0-21swapper/323:55:153
207246299120,11cyclictest0-21swapper/323:05:233
207246299120,11cyclictest0-21swapper/322:05:013
207246299120,11cyclictest0-21swapper/321:20:133
207246299120,11cyclictest0-21swapper/320:40:003
207246299120,11cyclictest0-21swapper/319:15:013
207246299120,11cyclictest0-21swapper/300:25:203
207246299120,11cyclictest0-21swapper/300:15:133
207246299119,1cyclictest69450irq/121-eno121:25:143
2072462991111,0cyclictest0-21swapper/319:50:003
207246299110,11cyclictest0-21swapper/319:15:003
207246299110,10cyclictest69450irq/121-eno121:50:323
207246299110,10cyclictest69450irq/121-eno100:11:323
207246299110,10cyclictest0-21swapper/300:00:153
207246299110,0cyclictest0-21swapper/323:20:133
207246299110,0cyclictest0-21swapper/323:00:003
207246299110,0cyclictest0-21swapper/322:45:203
207246299110,0cyclictest0-21swapper/322:30:163
207246299110,0cyclictest0-21swapper/321:20:013
207246299110,0cyclictest0-21swapper/319:55:003
207246299109,0cyclictest69450irq/121-eno123:50:183
207246299109,0cyclictest0-21swapper/321:35:183
2072462991010,0cyclictest69450irq/121-eno123:18:183
2072462991010,0cyclictest69450irq/121-eno121:44:403
2072462991010,0cyclictest69450irq/121-eno119:25:133
2072462991010,0cyclictest0-21swapper/300:05:133
207246299100,9cyclictest69450irq/121-eno123:45:383
207246299100,9cyclictest69450irq/121-eno123:03:253
207246299100,9cyclictest69450irq/121-eno122:50:173
207246299100,9cyclictest69450irq/121-eno122:41:003
207246299100,9cyclictest69450irq/121-eno120:35:173
207246299100,9cyclictest0-21swapper/323:30:223
207246299100,9cyclictest0-21swapper/321:10:123
207246299100,9cyclictest0-21swapper/321:05:223
207246299100,0cyclictest0-21swapper/323:40:183
207246299100,0cyclictest0-21swapper/320:20:173
207246299100,0cyclictest0-21swapper/319:35:213
20724629999,0cyclictest69450irq/121-eno122:36:023
20724629999,0cyclictest69450irq/121-eno122:21:283
20724629999,0cyclictest69450irq/121-eno120:30:013
20724629999,0cyclictest69450irq/121-eno100:37:303
20724629999,0cyclictest0-21swapper/322:20:013
20724629999,0cyclictest0-21swapper/321:00:003
20724629999,0cyclictest0-21swapper/300:30:173
20724629998,1cyclictest0-21swapper/319:40:113
20724629998,0cyclictest0-21swapper/322:05:143
20724629997,1cyclictest0-21swapper/320:00:143
20724629990,8cyclictest69450irq/121-eno123:27:373
20724629988,0cyclictest69450irq/121-eno121:48:093
20724629988,0cyclictest69450irq/121-eno119:30:163
20724629988,0cyclictest69450irq/121-eno119:20:153
20724629988,0cyclictest0-21swapper/320:10:153
20724629987,0cyclictest0-21swapper/322:30:023
20724629980,7cyclictest0-21swapper/320:05:133
20724629970,0cyclictest0-21swapper/319:55:143
2072060272,1sleep10-21swapper/119:06:421
2071694271,3sleep30-21swapper/319:05:193
20724629966,0cyclictest69450irq/121-eno121:02:283
2092635250,4sleep02092848-21expr20:00:160
20724629955,0cyclictest0-21swapper/320:50:063
20724629955,0cyclictest0-21swapper/320:16:093
20724629954,0cyclictest0-21swapper/320:45:123
2070727251,2sleep02070911-21cpuspeed19:05:120
2088695240,1sleep12088721-21apt-get19:50:121
2071962240,2sleep20-21swapper/219:05:272
2187196232,1sleep02163280-21kworker/0:0+events23:49:380
2185407230,2sleep12185460-21aten_r1power_cu23:45:151
2132017230,1sleep22132043-21apt-get21:40:122
2079262230,0sleep00-21swapper/019:25:130
2208379220,0sleep20-21swapper/200:39:352
2205311220,1sleep10-21swapper/100:30:211
2197974220,1sleep22198000-21apt-get00:15:132
2196040220,1sleep12196310-21df00:10:161
2195916220,1sleep00-21swapper/000:10:150
2177311220,1sleep10-21swapper/123:25:211
2172314220,1sleep12172340-21apt-get23:15:131
2169708220,1sleep12169742-21munin-run23:10:001
2167216220,1sleep00-21swapper/023:01:310
2159853220,1sleep12160003-21ntp_states22:45:191
2158559220,0sleep00-21swapper/022:41:220
2136194220,1sleep10-21swapper/121:50:111
2135564220,0sleep00-21swapper/021:46:420
2132171220,1sleep02132436-21df21:40:140
2130910220,1sleep22131135-21tail21:35:192
2128625220,1sleep22128712-21ntp_states21:30:232
2124393220,1sleep02123960-21/usr/sbin/munin21:20:170
2123183220,1sleep00-21swapper/021:17:280
2117976220,1sleep00-21swapper/021:05:190
2114063220,1sleep22114147-21irqstats20:55:172
2111468220,1sleep22111486-21munin-run20:50:002
2107893220,1sleep02107947-21aten_r1power_cu20:40:150
2101003220,1sleep21-21systemd20:20:192
2100218220,1sleep02100244-21apt-get20:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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