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2026-07-31 - 03:08
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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 Fri Jul 31, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193902237222,10sleep10-21swapper/119:05:021
215282185168,12sleep30-21swapper/319:08:503
212902183167,12sleep00-21swapper/019:05:450
213582171153,13sleep20-21swapper/219:06:362
121682450,0sleep10-21swapper/122:11:261
325762100,0sleep20-21swapper/223:10:282
25571290,0sleep10-21swapper/123:40:141
20501290,0sleep00-21swapper/021:43:230
217929962,4cyclictest10228-21munin-run19:50:010
217929960,0cyclictest28383-21apt-get21:15:140
22048250,0sleep30-21swapper/322:33:053
218159955,0cyclictest24590-21kworker/3:000:00:283
218159951,2cyclictest0-21swapper/322:50:113
218159950,5cyclictest0-21swapper/323:46:233
218159950,5cyclictest0-21swapper/322:42:053
218159950,5cyclictest0-21swapper/322:25:213
218159950,5cyclictest0-21swapper/320:32:173
218159950,5cyclictest0-21swapper/300:14:113
218159950,4cyclictest0-21swapper/321:00:123
218079955,0cyclictest0-21swapper/222:22:362
218079952,3cyclictest802-21snmpd22:48:572
218079950,5cyclictest20384-21perf22:00:012
218079950,5cyclictest0-21swapper/222:27:062
218079950,5cyclictest0-21swapper/221:53:392
218079950,4cyclictest15569-21apt-get21:05:112
218079950,0cyclictest0-21swapper/200:07:042
217999950,5cyclictest0-21swapper/121:33:531
217999950,5cyclictest0-21swapper/100:34:531
217929955,0cyclictest0-21swapper/023:34:290
217929950,5cyclictest0-21swapper/022:37:270
217929950,5cyclictest0-21swapper/022:28:240
28561240,0sleep10-21swapper/121:47:121
218159944,0cyclictest24590-21kworker/3:023:15:423
218159944,0cyclictest0-21swapper/321:56:583
218159944,0cyclictest0-21swapper/321:27:263
218159943,1cyclictest9676-21sed20:50:193
218159943,1cyclictest3740-21grep20:40:133
218159941,3cyclictest802-21snmpd23:28:003
218159941,3cyclictest18733-21expr22:15:123
218159941,3cyclictest0-21swapper/323:51:563
218159941,3cyclictest0-21swapper/322:20:113
218159941,2cyclictest0-21swapper/320:15:113
218159941,2cyclictest0-21swapper/319:15:123
218159941,2cyclictest0-21swapper/300:15:113
218159940,4cyclictest5205-21apt-get23:30:113
218159940,4cyclictest317-21apt-get19:30:143
218159940,4cyclictest24969-21apt-get23:40:123
218159940,4cyclictest12741-21ssh22:11:493
218159940,4cyclictest11608-21uname20:55:173
218159940,4cyclictest0-21swapper/322:35:113
218159940,4cyclictest0-21swapper/321:51:543
218159940,4cyclictest0-21swapper/321:41:593
218159940,4cyclictest0-21swapper/321:35:063
218159940,4cyclictest0-21swapper/321:20:133
218159940,4cyclictest0-21swapper/320:05:113
218159940,4cyclictest0-21swapper/319:40:103
218159940,4cyclictest0-21swapper/319:20:113
218159940,4cyclictest0-21swapper/300:25:133
218159940,4cyclictest0-21swapper/300:05:073
218159940,3cyclictest802-21snmpd23:10:033
218159940,3cyclictest5473-21apt-get20:45:113
218159940,3cyclictest31189-21sh23:59:493
218159940,3cyclictest30916-21apt-get22:05:133
218159940,3cyclictest23853-21ssh22:00:523
218159940,3cyclictest20493-21apt23:05:143
218159940,3cyclictest18907-21df_inode21:10:153
218159940,3cyclictest17959-21latency_hist21:10:003
218159940,3cyclictest17467-21ssh23:03:273
218159940,2cyclictest0-21swapper/300:30:183
218159940,1cyclictest8279-21tr00:20:193
218159940,1cyclictest7982-21/usr/sbin/munin19:45:123
218159940,1cyclictest28375-21/usr/sbin/munin21:15:243
218159940,1cyclictest25522-21/usr/sbin/munin20:20:203
218159940,1cyclictest0-21swapper/320:00:213
218079944,0cyclictest0-21swapper/221:45:122
218079944,0cyclictest0-21swapper/221:35:362
218079944,0cyclictest0-21swapper/200:37:202
218079944,0cyclictest0-21swapper/200:22:292
218079944,0cyclictest0-21swapper/200:15:042
218079943,1cyclictest21513-21ssh22:32:462
218079942,1cyclictest8913-21ssh22:10:122
218079941,3cyclictest29961-21nscd21:27:312
218079941,3cyclictest10218-21ssh23:49:012
218079940,4cyclictest28383-21apt-get21:15:142
218079940,4cyclictest17812-21diskmemload00:02:192
218079940,4cyclictest0-21swapper/223:30:122
218079940,4cyclictest0-21swapper/223:25:132
218079940,4cyclictest0-21swapper/222:35:112
218079940,4cyclictest0-21swapper/222:15:112
218079940,4cyclictest0-21swapper/221:20:132
218079940,4cyclictest0-21swapper/221:13:592
218079940,4cyclictest0-21swapper/221:04:552
218079940,3cyclictest7793-21ssh22:58:372
218079940,3cyclictest30912-21/usr/sbin/munin22:05:192
218079940,3cyclictest24555-21munin-node19:15:012
218079940,3cyclictest16192-21ssh21:40:382
218079940,3cyclictest12696-21date22:45:002
218079940,3cyclictest11655-21ssh23:16:232
218079940,3cyclictest10220-21latency_hist19:50:012
218079940,3cyclictest0-21swapper/220:10:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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