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2025-07-13 - 12:06
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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 Sun Jul 13, 2025 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38512204188,11sleep10-21swapper/119:06:561
38552200183,12sleep00-21swapper/019:06:580
18732189172,12sleep30-21swapper/319:05:103
39782173155,13sleep20-21swapper/219:08:342
202992500,0sleep20-21swapper/223:13:142
101622440,0sleep10-21swapper/119:20:011
47862420,0sleep10-21swapper/122:32:381
143882110,0sleep00-21swapper/022:54:010
8200290,0sleep20-21swapper/221:14:032
42709993,3cyclictest27146-21cron21:00:000
42709993,3cyclictest18555-21sendmail-msp22:40:010
2903290,0sleep10-21swapper/123:53:531
1217290,0sleep00-21swapper/021:42:200
42709971,3cyclictest12573-21perf19:25:010
42779961,5cyclictest0-21swapper/220:25:132
42779961,5cyclictest0-21swapper/220:25:132
42879955,0cyclictest0-21swapper/323:23:223
42879953,2cyclictest18758-21ssh23:12:153
42879950,5cyclictest15273-21aten2_r5power_c19:30:133
42879950,5cyclictest0-21swapper/323:42:003
42879950,5cyclictest0-21swapper/323:25:143
42879950,5cyclictest0-21swapper/321:56:303
42879950,5cyclictest0-21swapper/300:36:223
42879950,5cyclictest0-21swapper/300:24:553
42779951,4cyclictest13923-21apt-get22:05:152
42779950,5cyclictest0-21swapper/221:45:252
42779950,5cyclictest0-21swapper/200:12:012
42779950,0cyclictest0-21swapper/222:20:372
42769950,5cyclictest0-21swapper/123:15:011
42769950,5cyclictest0-21swapper/122:45:381
42769950,5cyclictest0-21swapper/122:13:461
42709950,5cyclictest0-21swapper/022:18:460
42709950,5cyclictest0-21swapper/021:30:160
42709950,5cyclictest0-21swapper/021:20:130
42709950,5cyclictest0-21swapper/021:10:210
42709950,4cyclictest32120-21diskmemload00:34:200
42709950,4cyclictest0-21swapper/023:55:140
42709950,1cyclictest0-21swapper/022:50:000
42709950,0cyclictest0-21swapper/023:14:370
42709950,0cyclictest0-21swapper/021:54:260
27789250,0sleep10-21swapper/123:33:271
42879944,0cyclictest0-21swapper/323:37:213
42879944,0cyclictest0-21swapper/321:46:113
42879944,0cyclictest0-21swapper/300:33:133
42879944,0cyclictest0-21swapper/300:14:183
42879941,3cyclictest31863-21ssh23:19:213
42879941,2cyclictest0-21swapper/321:30:123
42879940,4cyclictest6428-21users19:10:233
42879940,4cyclictest3938-21apt-get22:00:153
42879940,4cyclictest32120-21diskmemload22:55:393
42879940,4cyclictest29079-21df21:40:173
42879940,4cyclictest0-21swapper/323:52:043
42879940,4cyclictest0-21swapper/323:30:033
42879940,4cyclictest0-21swapper/323:07:163
42879940,4cyclictest0-21swapper/323:04:043
42879940,4cyclictest0-21swapper/322:36:403
42879940,4cyclictest0-21swapper/322:20:153
42879940,4cyclictest0-21swapper/322:05:163
42879940,4cyclictest0-21swapper/321:50:173
42879940,4cyclictest0-21swapper/321:35:063
42879940,4cyclictest0-21swapper/321:25:123
42879940,4cyclictest0-21swapper/321:20:143
42879940,4cyclictest0-21swapper/321:15:063
42879940,4cyclictest0-21swapper/321:10:043
42879940,4cyclictest0-21swapper/321:00:143
42879940,4cyclictest0-21swapper/320:40:143
42879940,4cyclictest0-21swapper/319:57:383
42879940,4cyclictest0-21swapper/300:16:203
42879940,3cyclictest6586-21ssh22:50:143
42879940,3cyclictest4933-21ssh23:55:013
42879940,3cyclictest4102-21ssh22:32:113
42879940,3cyclictest32721-21ssh00:25:153
42879940,3cyclictest30272-21grep22:45:173
42879940,3cyclictest24076-21ps19:45:193
42879940,3cyclictest23690-21/usr/sbin/munin20:50:183
42879940,3cyclictest23616-21ssh22:10:033
42879940,3cyclictest21226-21apt-config22:25:003
42879940,3cyclictest20515-21/usr/sbin/munin20:45:153
42879940,3cyclictest15030-21munin-run19:30:013
42879940,3cyclictest0-21swapper/319:35:143
42879940,1cyclictest31394-21ntp_states20:00:203
42879940,0cyclictest0-21swapper/323:47:223
42779944,0cyclictest0-21swapper/222:01:242
42779943,1cyclictest9167-21/usr/sbin/munin22:35:212
42779943,1cyclictest15231-21tr20:35:142
42779941,3cyclictest29550-21cat21:40:192
42779940,4cyclictest12128-21apt-get00:15:142
42779940,4cyclictest0-21swapper/223:40:132
42779940,4cyclictest0-21swapper/223:09:122
42779940,4cyclictest0-21swapper/222:45:352
42779940,4cyclictest0-21swapper/222:32:062
42779940,4cyclictest0-21swapper/221:35:132
42779940,4cyclictest0-21swapper/221:30:132
42779940,4cyclictest0-21swapper/221:05:232
42779940,4cyclictest0-21swapper/220:20:122
42779940,4cyclictest0-21swapper/219:55:152
42779940,4cyclictest0-21swapper/200:35:132
42779940,4cyclictest0-21swapper/200:30:132
42779940,4cyclictest0-21swapper/200:29:092
42779940,3cyclictest7397-21diskstats19:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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