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2026-04-07 - 10:03
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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 Tue Apr 07, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147432203187,11sleep10-21swapper/119:06:311
146812188172,11sleep30-21swapper/319:05:453
148112183166,12sleep00-21swapper/019:07:220
147152174157,13sleep20-21swapper/219:06:122
25492450,0sleep10-21swapper/100:00:001
297172400,0sleep20-21swapper/221:34:492
123342130,0sleep30-21swapper/321:41:263
235322120,1sleep20-21swapper/223:05:482
304492110,0sleep10-21swapper/122:54:061
152009970,6cyclictest17540-21latency_hist19:15:000
152069962,1cyclictest23445-21ssh22:50:173
152069961,2cyclictest0-21swapper/320:55:113
152009960,5cyclictest0-21swapper/019:20:110
152069955,0cyclictest17767-21kworker/3:019:35:413
152069955,0cyclictest10768-21kworker/3:200:26:483
152069951,2cyclictest0-21swapper/320:40:103
152069950,5cyclictest0-21swapper/322:59:523
152069950,5cyclictest0-21swapper/322:40:233
152069950,5cyclictest0-21swapper/321:25:273
152069950,4cyclictest1330-21ls22:40:003
152069950,1cyclictest0-21swapper/323:26:563
152029955,0cyclictest0-21swapper/222:46:152
152029955,0cyclictest0-21swapper/221:59:512
152029955,0cyclictest0-21swapper/219:25:172
152029951,2cyclictest0-21swapper/220:55:102
152029950,5cyclictest21812-21ssh23:20:442
152029950,5cyclictest0-21swapper/223:11:422
152029950,5cyclictest0-21swapper/222:14:492
152029950,5cyclictest0-21swapper/221:54:352
152029950,5cyclictest0-21swapper/220:40:142
152029950,0cyclictest0-21swapper/222:50:082
152019951,2cyclictest0-21swapper/123:40:101
152019950,5cyclictest0-21swapper/121:43:491
152009955,0cyclictest11007-21diskmemload23:46:000
152009955,0cyclictest0-21swapper/021:46:430
152009950,5cyclictest0-21swapper/000:35:200
152009950,4cyclictest6277-21apt-get21:00:020
152069944,0cyclictest27854-21sh23:55:353
152069944,0cyclictest0-21swapper/323:35:583
152069944,0cyclictest0-21swapper/321:13:303
152069944,0cyclictest0-21swapper/320:51:403
152069944,0cyclictest0-21swapper/320:35:063
152069943,1cyclictest13535-21tr00:05:133
152069942,1cyclictest5790-21ssh21:38:443
152069941,2cyclictest0-21swapper/320:05:123
152069941,1cyclictest0-21swapper/323:50:113
152069941,1cyclictest0-21swapper/323:05:133
152069941,1cyclictest0-21swapper/321:30:113
152069940,4cyclictest32260-21apt-get21:20:153
152069940,4cyclictest32260-21apt-get21:20:143
152069940,4cyclictest0-21swapper/322:46:243
152069940,4cyclictest0-21swapper/322:27:463
152069940,4cyclictest0-21swapper/322:11:073
152069940,4cyclictest0-21swapper/321:55:133
152069940,4cyclictest0-21swapper/321:52:223
152069940,4cyclictest0-21swapper/321:45:113
152069940,4cyclictest0-21swapper/321:19:283
152069940,4cyclictest0-21swapper/319:45:103
152069940,4cyclictest0-21swapper/319:25:143
152069940,3cyclictest8737-21cat21:05:013
152069940,3cyclictest32078-21/usr/sbin/munin20:45:153
152069940,3cyclictest18532-21/usr/sbin/munin19:15:203
152069940,1cyclictest467-21ntp_states00:30:163
152069940,1cyclictest31130-21/usr/sbin/munin19:40:163
152069940,1cyclictest2330-21memory00:15:153
152069940,1cyclictest21267-21cut20:25:123
152069940,1cyclictest10072-21ntp_states23:15:183
152069940,0cyclictest0-21swapper/323:31:263
152069940,0cyclictest0-21swapper/300:37:213
152029944,0cyclictest0-21swapper/222:05:042
152029943,1cyclictest30771-21apt-key19:40:002
152029943,1cyclictest17193-21wget22:00:122
152029943,1cyclictest16048-21ssh23:02:352
152029943,1cyclictest11720-21ssh23:48:122
152029942,1cyclictest9496-21if_eth021:40:162
152029942,1cyclictest25140-21ssh00:10:202
152029942,1cyclictest16783-21ssh22:15:152
152029941,2cyclictest0-21swapper/223:50:112
152029941,2cyclictest0-21swapper/220:15:022
152029940,4cyclictest21937-21df00:25:122
152029940,4cyclictest15300-21apt-get19:10:102
152029940,4cyclictest11007-21diskmemload23:30:132
152029940,4cyclictest0-21swapper/223:55:452
152029940,4cyclictest0-21swapper/223:43:052
152029940,4cyclictest0-21swapper/223:36:092
152029940,4cyclictest0-21swapper/223:15:112
152029940,4cyclictest0-21swapper/222:41:572
152029940,4cyclictest0-21swapper/221:36:372
152029940,4cyclictest0-21swapper/221:25:262
152029940,4cyclictest0-21swapper/221:15:352
152029940,4cyclictest0-21swapper/221:00:002
152029940,4cyclictest0-21swapper/219:49:422
152029940,4cyclictest0-21swapper/219:20:122
152029940,4cyclictest0-21swapper/200:20:102
152029940,4cyclictest0-21swapper/200:00:112
152029940,3cyclictest9778-21/usr/sbin/munin00:35:122
152029940,3cyclictest8842-21ssh00:18:502
152029940,3cyclictest6112-21/usr/sbin/munin19:55:192
152029940,3cyclictest3469-21ssh22:25:122
152029940,3cyclictest32390-21ssh22:23:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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