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2026-03-23 - 08:09
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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 Mar 23, 2026 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13722201184,12sleep10-21swapper/119:08:111
12872196178,13sleep30-21swapper/319:07:053
13042180161,13sleep00-21swapper/019:07:190
12492145127,13sleep20-21swapper/219:06:362
197122460,0sleep10-21swapper/100:15:091
240892440,0sleep10-21swapper/120:55:191
122072440,0sleep20-21swapper/200:10:382
234492430,0sleep00-21swapper/000:16:200
209452370,0sleep30-21swapper/319:45:173
16979992,3cyclictest4064-21perf19:15:020
16979980,6cyclictest19051-21ssh22:55:090
16979971,5cyclictest27516-21apt-get21:05:010
16979970,6cyclictest1926-21ntpq22:30:160
16979970,6cyclictest1926-21ntpq22:30:160
17069960,6cyclictest0-21swapper/223:15:092
16979963,3cyclictest8465-21if_eth020:25:160
16979963,3cyclictest0-21swapper/022:10:210
16979963,3cyclictest0-21swapper/021:16:170
16979962,4cyclictest61-21kswapd000:25:000
16979961,5cyclictest814-21snmpd23:40:130
16979960,6cyclictest20981-21apt-get22:40:120
16979960,6cyclictest0-21swapper/021:30:220
16979960,5cyclictest0-21swapper/020:55:120
17079953,1cyclictest19048-21sh22:55:083
17079950,5cyclictest0-21swapper/322:42:063
17079950,5cyclictest0-21swapper/322:25:143
17079950,5cyclictest0-21swapper/321:15:323
17079950,0cyclictest0-21swapper/300:09:333
17069955,0cyclictest0-21swapper/222:04:092
17069951,2cyclictest0-21swapper/221:15:122
17069950,5cyclictest0-21swapper/222:58:352
17069950,5cyclictest0-21swapper/222:28:352
17069950,5cyclictest0-21swapper/221:41:102
17069950,5cyclictest0-21swapper/221:21:402
17069950,0cyclictest0-21swapper/222:18:592
17019951,2cyclictest0-21swapper/123:40:111
17019950,5cyclictest0-21swapper/122:56:111
17019950,5cyclictest0-21swapper/121:51:011
17019950,5cyclictest0-21swapper/121:12:441
17019950,5cyclictest0-21swapper/120:18:011
17019950,5cyclictest0-21swapper/120:11:021
16979955,0cyclictest0-21swapper/019:15:140
16979953,1cyclictest20694-21sed20:50:150
16979952,3cyclictest29775-21diskmemload22:54:400
16979952,3cyclictest0-21swapper/023:12:450
16979952,3cyclictest0-21swapper/021:47:250
16979952,3cyclictest0-21swapper/020:30:160
16979952,3cyclictest0-21swapper/020:20:120
16979952,3cyclictest0-21swapper/000:34:280
16979952,3cyclictest0-21swapper/000:11:370
16979950,5cyclictest8502-21memory23:05:160
16979950,5cyclictest6775-21ntp_offset23:20:160
16979950,5cyclictest6462-21latency_hist21:30:010
16979950,5cyclictest0-21swapper/023:49:160
16979950,5cyclictest0-21swapper/023:35:160
16979950,5cyclictest0-21swapper/023:30:240
16979950,5cyclictest0-21swapper/023:03:310
16979950,5cyclictest0-21swapper/022:49:410
16979950,5cyclictest0-21swapper/022:26:290
16979950,5cyclictest0-21swapper/022:08:140
16979950,5cyclictest0-21swapper/021:20:210
16979950,5cyclictest0-21swapper/000:25:560
16979950,5cyclictest0-21swapper/000:00:280
16979950,4cyclictest0-21swapper/019:50:120
16979950,0cyclictest13795-21ssh22:35:560
4116240,0sleep10-21swapper/121:28:361
17079944,0cyclictest0-21swapper/323:57:193
17079944,0cyclictest0-21swapper/321:11:013
17079944,0cyclictest0-21swapper/300:00:233
17079943,1cyclictest30621-21grep00:20:133
17079943,1cyclictest20533-21tune2fs00:15:143
17079942,1cyclictest814-21snmpd00:25:033
17079942,1cyclictest22412-21aten2_r5power_e20:55:113
17079941,3cyclictest814-21snmpd22:00:403
17079940,4cyclictest24436-21apt-get22:10:123
17079940,4cyclictest23846-21apt-get23:45:133
17079940,4cyclictest10002-21apt-get20:30:123
17079940,4cyclictest0-21swapper/323:51:133
17079940,4cyclictest0-21swapper/323:35:193
17079940,4cyclictest0-21swapper/323:30:373
17079940,4cyclictest0-21swapper/323:23:083
17079940,4cyclictest0-21swapper/323:00:023
17079940,4cyclictest0-21swapper/322:50:333
17079940,4cyclictest0-21swapper/322:21:003
17079940,4cyclictest0-21swapper/321:52:253
17079940,4cyclictest0-21swapper/321:40:123
17079940,4cyclictest0-21swapper/321:30:193
17079940,4cyclictest0-21swapper/321:25:113
17079940,4cyclictest0-21swapper/320:15:183
17079940,4cyclictest0-21swapper/319:15:133
17079940,4cyclictest0-21swapper/300:13:193
17079940,3cyclictest8060-21df_inode19:20:163
17079940,3cyclictest8060-21df_inode19:20:153
17079940,3cyclictest5595-21diskstats20:20:123
17079940,3cyclictest5283-21sh21:45:013
17079940,3cyclictest32687-21sh00:36:593
17079940,3cyclictest27421-21ssh23:15:053
17079940,3cyclictest27375-21/usr/sbin/munin20:00:133
17079940,3cyclictest21266-21sh21:20:423
17079940,3cyclictest18885-21sh23:42:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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