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2025-11-24 - 23:45
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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 Mon Nov 24, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256552189174,10sleep10-21swapper/107:09:491
253912183166,12sleep00-21swapper/007:06:210
256302182164,13sleep30-21swapper/307:09:293
23451211194,12sleep20-21swapper/207:05:072
246992420,0sleep00-21swapper/009:27:050
66062120,0sleep10-21swapper/111:59:591
326312120,0sleep30-21swapper/311:07:453
121362110,0sleep10-21swapper/110:41:011
258409982,3cyclictest16321-21perf11:00:010
258469975,1cyclictest31-21ksoftirqd/210:40:132
19043270,0sleep00-21swapper/012:05:190
27220260,0sleep20-21swapper/209:12:262
258509961,4cyclictest0-21swapper/311:50:123
258509960,5cyclictest9030-21apt-get10:40:123
258509955,0cyclictest28427-21kworker/3:010:26:223
258509955,0cyclictest0-21swapper/309:14:053
258509954,1cyclictest24607-21ssh12:08:403
258509950,5cyclictest22622-21memory08:05:173
258509950,5cyclictest22622-21memory08:05:173
258509950,5cyclictest0-21swapper/311:14:063
258509950,4cyclictest1634-21/usr/sbin/munin11:40:303
258509950,4cyclictest0-21swapper/310:00:143
258509950,4cyclictest0-21swapper/309:00:103
258509950,4cyclictest0-21swapper/308:45:133
258469955,0cyclictest0-21swapper/210:22:002
258469952,3cyclictest714-21snmpd11:13:192
258469950,5cyclictest19113-21ssh12:21:532
258469950,5cyclictest0-21swapper/212:37:272
258469950,5cyclictest0-21swapper/210:02:212
258469950,4cyclictest29030-21ssh10:50:112
258469950,0cyclictest0-21swapper/211:51:292
258419951,3cyclictest0-21swapper/111:35:121
258419951,3cyclictest0-21swapper/109:15:121
258419951,2cyclictest0-21swapper/112:35:131
258419951,2cyclictest0-21swapper/111:00:121
258419951,2cyclictest0-21swapper/109:10:131
258409952,3cyclictest13352-21kworker/0:111:45:160
258409951,4cyclictest13352-21kworker/0:111:06:190
258409951,4cyclictest13352-21kworker/0:109:31:160
258409950,5cyclictest13352-21kworker/0:110:05:190
258409950,5cyclictest0-21swapper/007:15:210
258409950,0cyclictest13352-21kworker/0:111:25:410
258409950,0cyclictest0-21swapper/009:24:520
258509944,0cyclictest28427-21kworker/3:009:08:013
258509944,0cyclictest28427-21kworker/3:008:56:483
258509944,0cyclictest0-21swapper/312:36:533
258509942,2cyclictest14622-21ssh09:54:453
258509941,3cyclictest55950irq/130-eth012:20:123
258509941,3cyclictest4224-21sh09:16:583
258509940,4cyclictest9778-21apt-get11:45:133
258509940,4cyclictest27362-21ssh12:25:423
258509940,4cyclictest25483-21ssh10:15:223
258509940,4cyclictest20438-21df_inode09:25:153
258509940,4cyclictest0-21swapper/312:16:113
258509940,4cyclictest0-21swapper/312:12:523
258509940,4cyclictest0-21swapper/311:30:113
258509940,4cyclictest0-21swapper/311:25:243
258509940,4cyclictest0-21swapper/311:20:123
258509940,4cyclictest0-21swapper/311:15:533
258509940,4cyclictest0-21swapper/310:50:113
258509940,4cyclictest0-21swapper/310:36:173
258509940,4cyclictest0-21swapper/310:22:223
258509940,4cyclictest0-21swapper/310:10:143
258509940,4cyclictest0-21swapper/308:20:143
258509940,4cyclictest0-21swapper/307:20:113
258509940,4cyclictest0-21swapper/307:17:393
258509940,3cyclictest9120-21sort07:40:003
258509940,3cyclictest8172-21df09:35:163
258509940,3cyclictest6983-21cat12:00:003
258509940,3cyclictest6559-21apt-get10:55:023
258509940,3cyclictest3736-21cat10:05:153
258509940,3cyclictest30472-21df_inode09:30:123
258509940,3cyclictest27744-21ssh10:49:313
258509940,3cyclictest2611-21sh11:57:273
258509940,3cyclictest19898-21rm09:56:463
258509940,3cyclictest19586-21df_inode08:00:123
258509940,3cyclictest17727-21cut09:40:143
258509940,3cyclictest16617-21/usr/sbin/munin07:55:123
258509940,1cyclictest6656-21/usr/sbin/munin08:40:183
258509940,1cyclictest2987-21df_inode12:30:123
258509940,1cyclictest24989-21irqstats08:10:143
258509940,1cyclictest22393-21expr11:35:123
258509940,1cyclictest21327-21/usr/sbin/munin10:30:223
258509940,0cyclictest0-21swapper/311:00:353
258509940,0cyclictest0-21swapper/309:47:583
258509940,0cyclictest0-21swapper/309:20:173
258469944,0cyclictest0-21swapper/211:35:022
258469944,0cyclictest0-21swapper/211:05:482
258469944,0cyclictest0-21swapper/208:17:082
258469944,0cyclictest0-21swapper/207:35:242
258469943,1cyclictest31-21ksoftirqd/208:50:002
258469943,1cyclictest26601-21sort07:10:142
258469940,4cyclictest6879-21ssh09:50:182
258469940,4cyclictest19919-21ssh12:05:412
258469940,4cyclictest11057-21ssh10:08:552
258469940,4cyclictest0-21swapper/212:25:132
258469940,4cyclictest0-21swapper/212:10:132
258469940,4cyclictest0-21swapper/212:00:012
258469940,4cyclictest0-21swapper/211:55:132
258469940,4cyclictest0-21swapper/211:41:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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