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2026-04-24 - 14:06
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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 Apr 24, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
118402202187,11sleep10-21swapper/107:08:281
97392196159,32sleep20-21swapper/207:05:082
119062196179,12sleep00-21swapper/007:09:190
97402190174,11sleep30-21swapper/307:05:093
137362450,0sleep10-21swapper/112:22:191
256672430,0sleep30-21swapper/307:35:113
179242410,1sleep30-21swapper/309:14:563
179612400,0sleep10-21swapper/107:20:001
311172110,0sleep30-21swapper/312:15:123
281552110,0sleep00-21swapper/009:50:240
319702100,0sleep30-21swapper/309:52:443
1214299102,4cyclictest25127-21munin-run08:40:000
106232100,0sleep10-21swapper/111:00:511
31916290,0sleep20-21swapper/211:27:262
121429973,4cyclictest20435-21perf07:25:000
121429971,3cyclictest17716-21perf08:25:010
121429960,5cyclictest0-21swapper/010:40:020
121429960,3cyclictest4706-21perf09:40:000
13474250,0sleep213476-21gltestperf10:15:122
121539955,0cyclictest0-21swapper/311:25:223
121539952,2cyclictest0-21swapper/309:55:103
121539951,3cyclictest802-21snmpd12:29:523
121539950,5cyclictest25690-21ssh09:34:213
121539950,5cyclictest0-21swapper/312:36:573
121539950,5cyclictest0-21swapper/311:59:073
121539950,5cyclictest0-21swapper/311:07:113
121539950,5cyclictest0-21swapper/310:34:003
121539950,5cyclictest0-21swapper/309:42:213
121539950,5cyclictest0-21swapper/309:28:233
121539950,5cyclictest0-21swapper/309:21:423
121539950,5cyclictest0-21swapper/307:50:103
121539950,4cyclictest5511-21apt-get09:05:123
121539950,4cyclictest0-21swapper/311:10:113
121539950,4cyclictest0-21swapper/310:15:013
121539950,4cyclictest0-21swapper/310:05:113
121539950,4cyclictest0-21swapper/308:40:113
121539950,4cyclictest0-21swapper/307:10:103
121539950,0cyclictest0-21swapper/312:20:393
121499951,4cyclictest0-21swapper/211:15:112
121499950,5cyclictest567-21/usr/sbin/munin07:50:192
121499950,1cyclictest0-21swapper/210:47:462
121479950,5cyclictest0-21swapper/112:19:261
121429953,1cyclictest3838-21tail07:55:140
121429951,4cyclictest19201-21idleruntime-cro10:50:000
121429951,4cyclictest10428-21awk10:30:000
121429951,2cyclictest0-21swapper/010:50:110
121429951,2cyclictest0-21swapper/008:45:120
121429950,5cyclictest0-21swapper/009:15:230
121429950,4cyclictest28076-21ssh11:10:110
121429950,4cyclictest18596-21ssh12:25:100
121429950,4cyclictest14485-21latency_hist07:15:000
9459240,0sleep10-21swapper/110:13:311
121539943,1cyclictest11255-21grep08:10:133
121539942,1cyclictest30396-21aten2_r5power_v08:50:093
121539942,1cyclictest2297-21ssh11:45:113
121539942,1cyclictest17653-21ssh11:36:063
121539942,1cyclictest12380-21ssh11:50:073
121539941,2cyclictest11897-21ntp_kernel_pll_12:05:163
121539941,2cyclictest0-21swapper/310:00:113
121539940,4cyclictest0-21swapper/311:15:113
121539940,4cyclictest0-21swapper/310:55:113
121539940,4cyclictest0-21swapper/310:50:113
121539940,4cyclictest0-21swapper/310:35:023
121539940,4cyclictest0-21swapper/307:40:123
121539940,4cyclictest0-21swapper/307:25:103
121539940,3cyclictest7748-21diskmemload12:30:043
121539940,3cyclictest7748-21diskmemload12:00:043
121539940,3cyclictest7683-21ssh11:00:113
121539940,3cyclictest4026-21rm11:30:053
121539940,3cyclictest31334-21cp10:40:013
121539940,3cyclictest30515-21ssh09:36:023
121539940,3cyclictest3036-21/usr/sbin/munin09:00:153
121539940,3cyclictest29239-21ssh10:22:583
121539940,3cyclictest2587-21ssh10:10:133
121539940,3cyclictest25121-21df_inode11:40:143
121539940,3cyclictest24382-21ntp_states07:30:173
121539940,3cyclictest23955-21memory08:35:153
121539940,3cyclictest23016-21ssh09:16:463
121539940,3cyclictest20683-21ssh12:10:113
121539940,3cyclictest19240-21ssh11:20:553
121539940,3cyclictest18178-21apt07:20:123
121539940,3cyclictest16601-21cat08:20:153
121539940,3cyclictest15209-21latency_hist08:20:003
121539940,3cyclictest13789-21sh10:46:433
121539940,3cyclictest1374-21hddtemp_smartct08:55:123
121539940,3cyclictest0-21swapper/308:45:123
121539940,1cyclictest735-21cut10:25:113
121499944,0cyclictest31-21ksoftirqd/209:50:002
121499943,1cyclictest27604-21awk11:10:002
121499942,2cyclictest802-21snmpd09:59:162
121499942,1cyclictest802-21snmpd10:20:152
121499941,3cyclictest802-21snmpd12:35:072
121499941,3cyclictest5281-21sh09:05:012
121499940,4cyclictest7782-21ssh11:31:152
121499940,4cyclictest15998-21grep10:00:192
121499940,4cyclictest14417-21ssh12:06:282
121499940,4cyclictest0-21swapper/212:30:012
121499940,4cyclictest0-21swapper/212:24:052
121499940,4cyclictest0-21swapper/212:15:102
121499940,4cyclictest0-21swapper/211:35:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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