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2026-04-22 - 22:32
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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 Apr 22, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
167232194179,11sleep10-21swapper/107:08:561
164712183165,13sleep00-21swapper/007:05:420
164742179162,12sleep30-21swapper/307:05:453
1553021540,2sleep20-21swapper/207:05:152
230462480,0sleep00-21swapper/011:20:280
133792430,0sleep10-21swapper/109:56:501
74372180,0sleep10-21swapper/111:13:241
307042180,0sleep00-21swapper/012:28:410
1701299113,2cyclictest7416-21apt-get10:10:112
35302100,0sleep03528-21basename10:40:000
170129992,3cyclictest17098-21apt-get07:10:122
170129991,4cyclictest30851-21/usr/sbin/munin09:50:202
170129984,1cyclictest3131-21apt-get08:50:102
170129982,3cyclictest30270-21memory11:40:162
170129982,3cyclictest26431-21ssh10:19:262
170129982,1cyclictest14788-21df_inode10:45:132
170129981,4cyclictest0-21swapper/210:56:332
170129980,1cyclictest8186-21apt-get09:55:022
170129974,3cyclictest12790-21diskmemload10:40:122
170129974,2cyclictest5236-21apt-get07:50:102
170129974,2cyclictest29392-21ssh10:05:112
170129974,2cyclictest19163-21apt-get10:00:122
170129972,4cyclictest10434-21python11:30:202
170129972,3cyclictest22797-21df_inode09:30:152
170129972,2cyclictest27691-21diskstats11:55:142
170129972,2cyclictest25649-21df_inode12:10:122
170129971,4cyclictest5297-21ssh09:37:172
170129971,4cyclictest5297-21ssh09:37:172
170129971,4cyclictest27616-21rm11:07:072
170129971,4cyclictest0-21swapper/208:15:202
170129971,3cyclictest22660-21sed11:20:202
170129971,3cyclictest16977-21ssh09:43:082
170129971,3cyclictest10828-21ssh12:35:042
170129971,2cyclictest8560-21rm10:25:432
170129971,2cyclictest20570-21sh11:51:192
170129971,2cyclictest2026-21grep07:40:192
169989971,3cyclictest24589-21cron12:10:000
170129964,2cyclictest8089-21apt-get09:00:112
170129964,2cyclictest7846-21munin-run09:00:002
170129964,2cyclictest10580-21apt-get11:15:122
170129964,1cyclictest346-21apt-get11:10:102
170129963,2cyclictest32505-21awk07:40:002
170129963,2cyclictest2099-21df_inode09:20:132
170129963,2cyclictest15970-21ssh10:30:082
170129963,2cyclictest10556-21apt-get09:05:112
170129962,4cyclictest32337-21ntpq11:25:162
170129962,1cyclictest0-21swapper/207:55:112
170129961,3cyclictest9966-21ssh12:02:132
170129961,3cyclictest31322-21ssh09:18:452
170129961,3cyclictest29885-21ssh10:20:202
170129961,3cyclictest2754-21ssh12:15:092
170129961,3cyclictest23982-21perl12:25:142
170129961,3cyclictest21099-21ssh09:29:402
170129961,3cyclictest20687-21ssh11:35:202
170129961,3cyclictest20675-21/usr/sbin/munin09:45:102
170129961,3cyclictest18233-21ssh12:22:202
170129961,3cyclictest16203-21/usr/sbin/munin08:10:122
170129961,2cyclictest8439-21python11:45:172
170129961,2cyclictest28983-21ssh10:51:502
170129961,2cyclictest23578-21grep07:20:152
170129961,2cyclictest17105-21ssh09:11:242
170129961,2cyclictest15010-21rm11:00:382
170129961,2cyclictest14892-21ssh12:05:082
170129961,2cyclictest11377-21grep08:00:162
170129961,1cyclictest13388-21df08:05:122
170129961,1cyclictest0-21swapper/210:35:122
170129961,1cyclictest0-21swapper/208:30:142
170129961,1cyclictest0-21swapper/208:20:132
170129961,1cyclictest0-21swapper/207:45:172
170129961,1cyclictest0-21swapper/207:30:142
170129960,2cyclictest1460-21df_inode12:30:122
5989250,0sleep10-21swapper/110:09:351
27774250,0sleep10-21swapper/110:51:061
170169952,3cyclictest0-21swapper/312:22:563
170169951,2cyclictest0-21swapper/312:30:103
170169950,5cyclictest0-21swapper/311:00:213
170169950,5cyclictest0-21swapper/310:59:543
170169950,4cyclictest16892-21apt-get11:50:113
170129953,2cyclictest645-21apt-get08:45:102
170129953,2cyclictest28122-21apt-get08:35:112
170129953,2cyclictest24247-21ntp_states08:25:172
170129953,2cyclictest19570-21if_eth007:15:002
170129951,3cyclictest31607-21irqstats08:40:162
170129951,1cyclictest0-21swapper/207:25:172
170059950,5cyclictest0-21swapper/111:58:331
170059950,5cyclictest0-21swapper/109:30:251
169989952,1cyclictest13726-21munin-run10:45:000
169989951,2cyclictest0-21swapper/010:15:110
169989951,2cyclictest0-21swapper/008:45:100
169989951,2cyclictest0-21swapper/008:30:130
169989950,5cyclictest0-21swapper/011:40:390
169989950,4cyclictest9836-21munin-run09:40:010
169989950,4cyclictest9836-21munin-run09:40:010
169989950,1cyclictest5015-21perf07:50:000
169989950,0cyclictest0-21swapper/012:33:370
4055240,0sleep10-21swapper/111:43:391
25187240,0sleep00-21swapper/010:02:450
170169944,0cyclictest29001-21kworker/3:211:57:283
170169944,0cyclictest29001-21kworker/3:210:05:313
170169944,0cyclictest29001-21kworker/3:209:20:453
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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