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2025-05-11 - 06:38
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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 50 highest latencies:
System rackcslot0.osadl.org (updated Sun May 11, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
420921270,0sleep80-21swapper/821:44:3914
447421220,2sleep0998-21dbus-daemon21:54:570
145332117104,8sleep120-21swapper/1219:17:244
142992117102,10sleep130-21swapper/1319:14:445
14294211690,21sleep80-21swapper/819:14:3914
14434211392,16sleep20-21swapper/219:16:428
14295211292,15sleep90-21swapper/919:14:4015
14436210991,14sleep40-21swapper/419:16:4410
788621050,5sleep121501199cyclictest23:00:244
2555321040,1sleep40-21swapper/423:23:1610
658621000,1sleep70-21swapper/723:35:3713
13498210084,4sleep110-21swapper/1119:13:383
306102990,6sleep141501499cyclictest20:53:086
110382980,0sleep100-21swapper/1021:21:252
110382980,0sleep100-21swapper/1021:21:252
230142970,5sleep882-21ksoftirqd/823:53:1814
230142970,5sleep882-21ksoftirqd/823:53:1814
179112960,0sleep70-21swapper/723:27:3613
279922950,0sleep00-21swapper/000:09:120
17122950,1sleep51500299cyclictest22:19:0611
85372940,0sleep40-21swapper/423:20:5210
66602940,1sleep80-21swapper/821:03:1214
66602940,1sleep80-21swapper/821:03:1214
146752940,6sleep41500199cyclictest20:33:1110
1111729486,4sleep60-21swapper/619:13:0112
235362930,1sleep110-21swapper/1100:03:143
235362930,1sleep110-21swapper/1100:03:143
1443529281,7sleep30-21swapper/319:16:439
209912890,2sleep40-21swapper/422:42:2110
143352890,0sleep130-21swapper/1323:21:495
1431728975,4sleep140-21swapper/1419:15:016
92372880,1sleep90-21swapper/921:45:2815
75452880,0sleep80-21swapper/800:44:2314
175042880,1sleep60-21swapper/622:31:5712
1442028876,8sleep50-21swapper/519:16:2911
290102870,1sleep50-21swapper/521:43:3211
126692870,1sleep111051ktimersoftd/1122:20:483
272212860,1sleep120-21swapper/1221:48:124
1349728674,8sleep100-21swapper/1019:13:372
51562850,1sleep140-21swapper/1400:05:426
51562850,1sleep140-21swapper/1400:05:426
43122850,1sleep13122-21ksoftirqd/1321:20:245
43122850,1sleep13122-21ksoftirqd/1321:20:245
35502850,0sleep80-21swapper/822:34:4014
321892850,2sleep990-21ksoftirqd/923:59:2815
321892850,2sleep990-21ksoftirqd/923:59:2815
28422840,1sleep60-21swapper/623:39:5312
17802840,5sleep01499499cyclictest22:09:070
1454028460,19sleep00-21swapper/019:17:280
1446928475,4sleep10-21swapper/119:17:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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