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2026-04-09 - 16:09
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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
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Thu Apr 09, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
140822215157,25sleep30-21swapper/307:05:013
161372199158,26sleep20-21swapper/207:09:152
160382197153,22sleep00-21swapper/007:07:570
160292197160,24sleep10-21swapper/107:07:491
112892590,0sleep20-21swapper/211:15:202
28092250,0sleep00-21swapper/011:47:300
16287992120,1cyclictest9-21ksoftirqd/009:20:000
16287992019,1cyclictest9-21ksoftirqd/010:25:140
16287992018,1cyclictest9-21ksoftirqd/010:00:110
99492190,0sleep10-21swapper/108:00:191
16287991919,0cyclictest9-21ksoftirqd/008:35:010
16287991818,0cyclictest9-21ksoftirqd/007:50:200
1630399170,1cyclictest32250-21grep11:00:222
1630399170,1cyclictest0-21swapper/212:20:002
16287991716,1cyclictest9-21ksoftirqd/011:55:110
16287991710,1cyclictest9-21ksoftirqd/009:45:000
1631199160,1cyclictest32249-21grep11:00:233
1630399160,1cyclictest0-21swapper/211:45:162
16287991616,0cyclictest9-21ksoftirqd/012:35:200
1631199150,1cyclictest27533-21df12:20:133
1630399150,2cyclictest26268-21sort10:55:002
1630399150,14cyclictest0-21swapper/212:35:012
1630399150,1cyclictest31844-21df_inode07:40:142
1630399150,1cyclictest22960-21ssh11:30:202
1630399150,1cyclictest22252-21ssh12:13:192
1630399150,1cyclictest18799-21hddtemp_smartct08:20:142
1630399150,1cyclictest17695-21diskstats11:25:132
1630399150,1cyclictest0-21swapper/209:05:172
16287991515,0cyclictest9-21ksoftirqd/010:21:070
16287991514,1cyclictest9-21ksoftirqd/012:03:250
138212150,0sleep10-21swapper/112:01:131
1631199140,1cyclictest7302-21memory12:35:163
1631199140,1cyclictest0-21swapper/309:48:363
1630399142,11cyclictest2112-21uname09:40:142
16303991411,3cyclictest0-21swapper/209:24:142
1630399140,2cyclictest0-21swapper/210:09:522
1630399140,1cyclictest4944-21df_inode09:00:122
1630399140,1cyclictest14329-21latency11:20:142
1630399140,1cyclictest0-21swapper/207:30:122
16287991414,0cyclictest9-21ksoftirqd/011:30:360
16287991414,0cyclictest9-21ksoftirqd/010:57:560
16287991414,0cyclictest9-21ksoftirqd/010:07:130
16287991413,1cyclictest9-21ksoftirqd/011:52:530
16287991413,1cyclictest9-21ksoftirqd/011:28:390
16287991413,1cyclictest9-21ksoftirqd/010:35:350
16287991413,1cyclictest9-21ksoftirqd/010:00:000
16287991413,1cyclictest9-21ksoftirqd/009:30:000
16287991413,1cyclictest9-21ksoftirqd/008:45:170
16287991412,1cyclictest9-21ksoftirqd/007:55:020
1631199130,1cyclictest4625-21memory07:50:153
1631199130,1cyclictest31998-21ssh11:44:043
1631199130,1cyclictest26828-21cpuspeed_turbos07:30:123
1631199130,1cyclictest12431-21smartctl10:35:203
1631199130,1cyclictest0-21swapper/310:10:143
1631199130,0cyclictest0-21swapper/311:35:173
1630399130,12cyclictest0-21swapper/212:06:022
1630399130,1cyclictest24967-21wc10:10:152
1630399130,1cyclictest11412-21df_inode08:05:142
1630399130,1cyclictest0-21swapper/210:25:202
1630399130,1cyclictest0-21swapper/207:15:002
1628799137,6cyclictest9-21ksoftirqd/008:10:120
1628799137,6cyclictest9-21ksoftirqd/008:10:110
1628799133,5cyclictest31139-21perf07:40:000
1628799133,5cyclictest1062-21perf07:45:010
16287991313,0cyclictest9-21ksoftirqd/012:28:520
16287991313,0cyclictest9-21ksoftirqd/011:13:120
16287991313,0cyclictest9-21ksoftirqd/010:11:070
16287991312,1cyclictest9-21ksoftirqd/010:45:000
16287991312,1cyclictest9-21ksoftirqd/009:35:000
16287991312,1cyclictest9-21ksoftirqd/008:40:000
16287991311,1cyclictest9-21ksoftirqd/012:05:130
16287991311,1cyclictest9-21ksoftirqd/009:50:100
16287991311,1cyclictest9-21ksoftirqd/009:20:160
16287991311,1cyclictest9-21ksoftirqd/008:10:000
16287991311,1cyclictest9-21ksoftirqd/007:20:000
16287991311,1cyclictest9-21ksoftirqd/007:15:000
16287991310,2cyclictest9-21ksoftirqd/012:10:100
1631199124,7cyclictest17272-21/usr/sbin/munin09:20:203
1631199120,6cyclictest0-21swapper/312:05:103
1631199120,2cyclictest8919-21diskmemload11:20:143
1631199120,2cyclictest6000-21grep12:35:003
1631199120,1cyclictest25291-21apt-get09:30:113
1631199120,1cyclictest10705-21ntp_states11:15:173
1631199120,1cyclictest0-21swapper/312:04:513
1631199120,1cyclictest0-21swapper/311:30:303
1631199120,1cyclictest0-21swapper/311:13:213
1631199120,1cyclictest0-21swapper/310:46:513
1631199120,1cyclictest0-21swapper/309:11:473
1631199120,0cyclictest26433-21apt-get10:55:093
1631199120,0cyclictest0-21swapper/309:17:523
1631199120,0cyclictest0-21swapper/307:55:263
1630399127,5cyclictest8476-21ssh09:49:512
1630399120,2cyclictest0-21swapper/210:40:042
1630399120,2cyclictest0-21swapper/209:10:092
1630399120,1cyclictest8919-21diskmemload10:30:172
1630399120,1cyclictest32543-21python12:25:252
1630399120,1cyclictest30917-21ntp_kernel_pll_08:45:162
1630399120,1cyclictest11125-21rm09:51:442
1630399120,1cyclictest0-21swapper/209:33:382
1630399120,0cyclictest8919-21diskmemload11:35:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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