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2026-05-21 - 13:57
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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 May 21, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1592025330,4sleep10-21swapper/107:05:181
167522216160,24sleep00-21swapper/007:06:110
169442212153,22sleep30-21swapper/307:08:433
167322202162,26sleep20-21swapper/207:05:572
310932820,0sleep10-21swapper/109:35:141
95832730,1sleep29579-21aten_r1power_vo08:00:122
291542580,0sleep30-21swapper/309:32:443
69662340,0sleep00-21swapper/009:45:230
1715099150,0cyclictest0-21swapper/310:55:103
1714299150,12cyclictest0-21swapper/207:15:012
1714299150,1cyclictest10228-21diskmemload10:55:112
1715099130,1cyclictest26210-21cat09:29:593
1714299130,1cyclictest21463-21/usr/sbin/munin10:05:192
1714299130,0cyclictest0-21swapper/210:18:352
17150991210,1cyclictest35-21ksoftirqd/309:05:003
1715099119,1cyclictest22024-21ssh11:34:103
1715099115,1cyclictest6922-21ssh11:13:373
1715099115,1cyclictest15613-21ssh09:58:203
1715099110,3cyclictest0-21swapper/311:24:303
1715099110,1cyclictest0-21swapper/311:07:593
17125991110,1cyclictest9-21ksoftirqd/011:20:010
17125991110,1cyclictest9-21ksoftirqd/010:00:000
296902100,1sleep20-21swapper/211:44:492
1715099109,1cyclictest35-21ksoftirqd/309:50:013
1715099104,1cyclictest796-21ssh10:20:313
1715099104,1cyclictest796-21ssh10:20:313
1715099103,1cyclictest29873-21timerwakeupswit08:40:203
1715099102,8cyclictest0-21swapper/310:10:113
1715099102,2cyclictest15787-21runrttasks12:09:303
1715099101,1cyclictest28864-21chrt11:42:253
1715099101,1cyclictest10473-21sshd11:18:073
1715099101,1cyclictest0-21swapper/310:06:583
1715099100,3cyclictest0-21swapper/310:43:443
1715099100,2cyclictest240-21systemd-journal12:30:453
1715099100,2cyclictest0-21swapper/311:27:523
1715099100,1cyclictest240-21systemd-journal12:39:453
1715099100,0cyclictest0-21swapper/311:54:583
1714299108,2cyclictest0-21swapper/209:39:022
1714299108,1cyclictest14574-21apt-get09:15:122
1714299104,1cyclictest10405-21ssh11:17:562
1714299101,2cyclictest23933-21apt-get10:10:112
1714299101,1cyclictest0-21swapper/209:25:152
1714299100,1cyclictest0-21swapper/212:13:312
1712599109,1cyclictest9-21ksoftirqd/012:40:000
1712599109,1cyclictest9-21ksoftirqd/012:20:000
1712599109,1cyclictest9-21ksoftirqd/008:05:010
171509993,1cyclictest32344-21chrt09:36:043
171509993,1cyclictest13253-21sshd10:39:093
171509992,1cyclictest7593-21ntp_states10:30:193
171509992,1cyclictest28715-21memory07:30:163
171509992,1cyclictest14259-21cron09:19:553
171509991,1cyclictest240-21systemd-journal11:02:123
171509991,1cyclictest0-21swapper/309:20:303
171509990,1cyclictest0-21swapper/310:03:353
171429995,3cyclictest61650irq/122-eno110:42:282
171429995,2cyclictest240-21systemd-journal07:50:002
171429994,1cyclictest61650irq/122-eno112:25:172
171429993,1cyclictest22778-21ssh12:18:112
171429993,1cyclictest19036-21basename08:20:112
171429991,2cyclictest29517-21chrt07:31:082
171429991,1cyclictest31629-21cpuspeed_turbos12:30:132
171429991,1cyclictest240-21systemd-journal11:30:002
171429991,1cyclictest0-21swapper/210:32:052
171429990,9cyclictest0-21swapper/209:53:552
171429990,7cyclictest10011-21kworker/u8:209:14:042
171429990,4cyclictest15702-21sh11:25:142
171429990,2cyclictest240-21systemd-journal07:15:002
171429990,1cyclictest240-21systemd-journal12:02:442
171429990,1cyclictest22622-21apt-get11:35:122
171429990,1cyclictest0-21swapper/211:45:162
171259998,1cyclictest9-21ksoftirqd/010:10:000
171259998,1cyclictest9-21ksoftirqd/009:18:350
171259997,1cyclictest9-21ksoftirqd/007:35:000
171259992,3cyclictest21048-21perf10:50:000
171259990,5cyclictest1354-21apt-get11:50:100
171259990,4cyclictest0-21swapper/012:05:100
171509986,1cyclictest35-21ksoftirqd/312:25:113
171509981,6cyclictest0-21swapper/312:20:143
171509980,5cyclictest0-21swapper/312:11:233
171509980,3cyclictest0-21swapper/310:50:123
171509980,1cyclictest240-21systemd-journal09:43:543
171509980,1cyclictest240-21systemd-journal07:40:383
171509980,0cyclictest0-21swapper/310:18:423
171429986,2cyclictest61650irq/122-eno110:49:142
171429986,2cyclictest61650irq/122-eno110:23:082
171429986,2cyclictest61650irq/122-eno110:23:082
171429986,1cyclictest61650irq/122-eno111:50:442
171429986,1cyclictest61650irq/122-eno109:20:182
171429983,1cyclictest61650irq/122-eno110:00:142
171429983,1cyclictest5709-21cat09:00:012
171429983,1cyclictest15265-21ssh09:57:212
171429982,2cyclictest21618-21/usr/sbin/munin10:50:132
171429982,1cyclictest4113-21aten_r1power_po11:10:122
171429981,6cyclictest19683-21munin-node08:54:202
171429981,2cyclictest2944-21cpuspeed_turbos10:25:122
171429980,3cyclictest29121-21aten_r1power_vo11:00:122
171429980,3cyclictest0-21swapper/212:35:252
171429980,1cyclictest4535-21grep08:55:182
171429980,1cyclictest240-21systemd-journal12:23:592
171429980,1cyclictest240-21systemd-journal09:40:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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