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2025-11-17 - 16:36
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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 rack5slot2.osadl.org (updated Mon Nov 17, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
77462193176,12sleep30-21swapper/307:08:593
75122190175,11sleep00-21swapper/007:05:540
76302188170,12sleep10-21swapper/107:07:281
77352178160,13sleep20-21swapper/207:08:502
297912490,0sleep10-21swapper/111:48:361
248202470,0sleep20-21swapper/207:40:202
234252430,0sleep10-21swapper/111:12:371
48332410,0sleep34835-21gltestperf09:10:163
294332400,0sleep10-21swapper/108:55:161
211612110,1sleep1211ktimersoftd/112:33:391
80059992,2cyclictest0-21swapper/109:45:131
6668290,0sleep00-21swapper/011:04:350
32578270,0sleep20-21swapper/211:17:062
80109960,6cyclictest9241-21ntp_states10:00:212
80059962,3cyclictest0-21swapper/107:35:131
80059961,4cyclictest0-21swapper/107:45:151
80059961,3cyclictest0-21swapper/108:15:171
80059961,3cyclictest0-21swapper/107:50:141
80019960,3cyclictest5941-21munin-run08:10:000
80149955,0cyclictest17256-21kworker/3:111:03:493
80149954,1cyclictest31206-21ntp_states12:05:203
80149952,3cyclictest32173-21/usr/sbin/munin09:40:233
80149950,5cyclictest1019-21diskmemload11:34:193
80149950,5cyclictest0-21swapper/311:18:553
80149950,1cyclictest21865-21ssh10:23:123
80109955,0cyclictest0-21swapper/212:27:112
80109955,0cyclictest0-21swapper/211:48:452
80109954,1cyclictest1866-21ntp_states10:45:202
80109950,5cyclictest0-21swapper/212:06:312
80109950,5cyclictest0-21swapper/211:57:382
80109950,5cyclictest0-21swapper/210:25:312
80109950,5cyclictest0-21swapper/209:45:492
80109950,5cyclictest0-21swapper/209:10:132
80109950,4cyclictest5849-21df_inode10:15:172
80059952,2cyclictest0-21swapper/111:50:131
80059952,2cyclictest0-21swapper/110:10:151
80059952,2cyclictest0-21swapper/108:35:141
80059951,3cyclictest0-21swapper/112:20:131
80059951,3cyclictest0-21swapper/109:50:131
80059951,2cyclictest0-21swapper/112:00:121
80059951,2cyclictest0-21swapper/111:25:131
80059951,2cyclictest0-21swapper/110:30:121
80059951,2cyclictest0-21swapper/110:20:131
80059951,2cyclictest0-21swapper/110:15:151
80059951,2cyclictest0-21swapper/108:40:121
80059951,2cyclictest0-21swapper/108:25:121
80059951,2cyclictest0-21swapper/108:25:121
80059951,2cyclictest0-21swapper/107:15:131
80059951,2cyclictest0-21swapper/107:10:131
80059950,5cyclictest0-21swapper/111:58:401
80059950,5cyclictest0-21swapper/110:43:531
80059950,5cyclictest0-21swapper/109:58:471
80059950,5cyclictest0-21swapper/109:31:171
80019955,0cyclictest0-21swapper/011:37:020
80019950,5cyclictest0-21swapper/011:46:390
80019950,5cyclictest0-21swapper/009:55:020
80019950,5cyclictest0-21swapper/009:08:370
80019950,0cyclictest0-21swapper/011:17:410
80149944,0cyclictest18332-21kworker/3:011:59:483
80149944,0cyclictest0-21swapper/311:37:423
80149943,1cyclictest3695-21/usr/sbin/munin08:05:183
80149943,1cyclictest23013-21gltestperf09:35:163
80149943,1cyclictest225-21systemd-journal08:25:013
80149943,1cyclictest19814-21/usr/sbin/munin09:50:153
80149941,1cyclictest0-21swapper/308:30:123
80149940,4cyclictest8672-21perl11:05:163
80149940,4cyclictest8645-21/usr/sbin/munin08:15:243
80149940,4cyclictest28531-21perl10:10:193
80149940,4cyclictest14313-21cut12:30:163
80149940,4cyclictest0-21swapper/310:45:213
80149940,4cyclictest0-21swapper/310:30:103
80149940,4cyclictest0-21swapper/310:05:163
80149940,4cyclictest0-21swapper/309:55:003
80149940,4cyclictest0-21swapper/308:35:133
80149940,4cyclictest0-21swapper/308:00:133
80149940,3cyclictest4815-21sh09:25:483
80149940,3cyclictest26169-21cat07:45:003
80149940,3cyclictest25893-21latency_hist08:50:013
80149940,3cyclictest24144-21sh12:18:393
80149940,3cyclictest22431-21sh11:45:023
80149940,3cyclictest13856-21apt-key09:15:013
80149940,3cyclictest13811-21cat07:20:003
80149940,3cyclictest11625-21seq10:50:173
80149940,2cyclictest21492-21ssh10:55:193
80149940,1cyclictest8118-21/usr/sbin/munin07:10:153
80149940,1cyclictest765-21fschecks_count11:50:163
80149940,1cyclictest4179-21/usr/sbin/munin12:25:193
80149940,1cyclictest20431-21df_inode12:00:153
80149940,1cyclictest18788-21/usr/sbin/munin07:30:153
80149940,1cyclictest16760-21cstates07:25:153
80149940,1cyclictest13661-21cut08:25:143
80149940,1cyclictest13661-21cut08:25:143
80149940,1cyclictest12987-21hwlatdetect09:30:153
80149940,0cyclictest0-21swapper/310:15:303
80109944,0cyclictest0-21swapper/210:35:262
80109944,0cyclictest0-21swapper/208:50:042
80109944,0cyclictest0-21swapper/207:15:392
80109943,1cyclictest6271-21ssh11:52:582
80109943,1cyclictest6240-21ssh10:31:122
80109943,1cyclictest29811-21ssh12:20:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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