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2026-05-13 - 15:35
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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 Wed May 13, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288902198183,10sleep10-21swapper/107:09:201
286202190172,13sleep00-21swapper/007:05:500
286322183165,13sleep20-21swapper/207:06:002
286062183166,12sleep30-21swapper/307:05:413
140322480,0sleep00-21swapper/011:26:410
242182450,0sleep224220-21/usr/sbin/munin09:40:222
213242450,0sleep10-21swapper/111:15:011
46172420,0sleep10-21swapper/112:25:381
54332100,0sleep10-21swapper/109:31:241
54332100,0sleep10-21swapper/109:31:231
2910799103,3cyclictest22269-21munin-run09:05:020
257982100,0sleep10-21swapper/111:48:521
5484290,0sleep10-21swapper/107:25:131
291079981,3cyclictest6454-21awk10:20:000
291139976,1cyclictest31-21ksoftirqd/208:10:012
291079971,3cyclictest2640-21munin-run09:15:020
291079970,3cyclictest24736-21munin-run09:10:020
291139966,0cyclictest31-21ksoftirqd/209:00:112
291139966,0cyclictest31-21ksoftirqd/208:00:122
291139964,2cyclictest31-21ksoftirqd/207:40:002
291139960,0cyclictest0-21swapper/210:02:342
291079960,3cyclictest28442-21apt-get10:15:000
291079960,3cyclictest14857-21munin-run10:40:000
291189955,0cyclictest28061-21kworker/3:110:16:233
291189955,0cyclictest17864-21kworker/3:209:31:373
291189955,0cyclictest17864-21kworker/3:209:31:363
291189955,0cyclictest0-21swapper/310:57:083
291189955,0cyclictest0-21swapper/309:13:413
291189950,5cyclictest15174-21ssh11:11:133
291189950,5cyclictest0-21swapper/311:50:493
291189950,5cyclictest0-21swapper/311:24:373
291189950,5cyclictest0-21swapper/310:49:413
291189950,5cyclictest0-21swapper/307:20:123
291189950,4cyclictest0-21swapper/309:40:113
291139955,0cyclictest31-21ksoftirqd/212:20:012
291139955,0cyclictest31-21ksoftirqd/210:40:112
291139955,0cyclictest31-21ksoftirqd/210:40:012
291139955,0cyclictest31-21ksoftirqd/209:55:122
291139955,0cyclictest31-21ksoftirqd/208:45:112
291139955,0cyclictest31-21ksoftirqd/207:25:122
291139955,0cyclictest31-21ksoftirqd/207:15:002
291139954,1cyclictest31-21ksoftirqd/211:10:142
291139954,1cyclictest0-21swapper/209:12:482
291139953,1cyclictest31-21ksoftirqd/209:30:022
291139951,4cyclictest802-21snmpd11:53:112
291139950,0cyclictest0-21swapper/212:07:162
291139950,0cyclictest0-21swapper/209:37:332
291119952,2cyclictest0-21swapper/108:35:111
291119951,3cyclictest0-21swapper/112:20:111
291119951,3cyclictest0-21swapper/110:55:101
291119951,2cyclictest0-21swapper/108:50:111
291119950,5cyclictest0-21swapper/109:20:341
291119950,5cyclictest0-21swapper/109:17:381
291079954,1cyclictest0-21swapper/011:00:470
291079950,5cyclictest0-21swapper/011:06:440
291079950,5cyclictest0-21swapper/010:09:240
291079950,4cyclictest0-21swapper/010:25:110
291189944,0cyclictest0-21swapper/309:55:263
291189944,0cyclictest0-21swapper/309:48:173
291189944,0cyclictest0-21swapper/307:45:203
291189943,1cyclictest16301-21ntp_kernel_err08:50:173
291189942,2cyclictest25167-21ssh11:00:193
291189942,1cyclictest19389-21ssh10:25:253
291189940,4cyclictest24947-21diskstats12:20:133
291189940,4cyclictest24734-21diskmemload11:40:253
291189940,4cyclictest16748-21/usr/sbin/munin10:40:163
291189940,4cyclictest10632-21kworker/u8:008:05:103
291189940,4cyclictest0-21swapper/312:35:093
291189940,4cyclictest0-21swapper/312:25:103
291189940,4cyclictest0-21swapper/312:10:113
291189940,4cyclictest0-21swapper/312:05:083
291189940,4cyclictest0-21swapper/311:46:383
291189940,4cyclictest0-21swapper/311:35:113
291189940,4cyclictest0-21swapper/311:31:383
291189940,4cyclictest0-21swapper/311:15:103
291189940,4cyclictest0-21swapper/310:35:113
291189940,4cyclictest0-21swapper/310:00:353
291189940,4cyclictest0-21swapper/309:25:223
291189940,4cyclictest0-21swapper/309:20:563
291189940,4cyclictest0-21swapper/308:10:023
291189940,4cyclictest0-21swapper/307:50:133
291189940,3cyclictest802-21snmpd08:35:043
291189940,3cyclictest7816-21sed10:20:133
291189940,3cyclictest32652-21apt08:20:123
291189940,3cyclictest2955-21rm09:15:063
291189940,3cyclictest2477-21cat07:20:013
291189940,3cyclictest19767-21apt09:00:003
291189940,3cyclictest16570-21df_inode12:00:113
291189940,3cyclictest15344-21ssh09:36:123
291189940,3cyclictest118742chrt12:30:003
291189940,3cyclictest0-21swapper/310:50:093
291189940,3cyclictest0-21swapper/308:45:123
291189940,3cyclictest0-21swapper/307:35:123
291189940,1cyclictest8007-21df_inode07:30:133
291189940,0cyclictest0-21swapper/310:09:423
291139944,0cyclictest31-21ksoftirqd/212:40:012
291139944,0cyclictest31-21ksoftirqd/211:55:172
291139944,0cyclictest31-21ksoftirqd/211:45:102
291139944,0cyclictest31-21ksoftirqd/211:35:122
291139944,0cyclictest31-21ksoftirqd/211:20:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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