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2025-12-06 - 08:22
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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 Sat Dec 06, 2025 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4212227160,23sleep10-21swapper/119:06:591
6612225149,22sleep20-21swapper/219:09:452
3382207157,25sleep30-21swapper/319:06:003
5062200161,26sleep00-21swapper/019:08:020
171272620,0sleep30-21swapper/321:40:153
76999190,7cyclictest0-21swapper/019:15:110
300302190,0sleep121-21ksoftirqd/123:30:171
789991312,0cyclictest0-21swapper/223:43:052
789991310,1cyclictest28-21ksoftirqd/220:15:002
152592130,0sleep20-21swapper/221:38:342
79699120,11cyclictest31278-21kworker/u8:222:53:013
76999123,4cyclictest25979-21grep21:10:000
769991210,1cyclictest9-21ksoftirqd/020:49:590
789991110,1cyclictest28-21ksoftirqd/223:30:202
789991110,1cyclictest28-21ksoftirqd/200:15:132
76999110,5cyclictest1-21systemd23:00:000
79699109,1cyclictest35-21ksoftirqd/322:20:013
79699100,9cyclictest819-21lldpd23:24:363
78999109,1cyclictest28-21ksoftirqd/223:55:172
78999109,1cyclictest28-21ksoftirqd/223:26:332
78999108,1cyclictest1613-21sh21:20:152
78999104,3cyclictest28-21ksoftirqd/222:18:252
76999103,4cyclictest19405-21sed21:45:000
107772100,0sleep30-21swapper/323:03:473
7969998,1cyclictest35-21ksoftirqd/323:05:393
7969992,2cyclictest6585-21sh00:29:443
7969991,3cyclictest23792-21apt-get21:05:143
7899999,0cyclictest28-21ksoftirqd/222:45:222
7899998,1cyclictest28-21ksoftirqd/223:00:142
7899998,1cyclictest28-21ksoftirqd/222:05:142
7899998,1cyclictest28-21ksoftirqd/219:20:002
7899997,1cyclictest28-21ksoftirqd/223:47:472
7899997,1cyclictest28-21ksoftirqd/220:20:002
7899990,8cyclictest3140-21munin-node21:03:032
7899990,8cyclictest25922-21diskmemload22:50:132
7699999,0cyclictest9-21ksoftirqd/021:34:080
7699998,1cyclictest9-21ksoftirqd/023:05:280
7699998,1cyclictest9-21ksoftirqd/021:20:140
7699998,1cyclictest9-21ksoftirqd/000:40:010
7699994,5cyclictest25867-21latency_hist22:40:000
7699993,5cyclictest494-21/usr/sbin/munin22:50:000
7699992,5cyclictest819-21lldpd22:53:050
7969986,1cyclictest35-21ksoftirqd/319:40:003
7969982,4cyclictest6126-21/usr/sbin/munin22:55:233
7969980,4cyclictest4777-21/usr/sbin/munin21:25:193
7899988,0cyclictest28-21ksoftirqd/223:20:212
7899987,1cyclictest28-21ksoftirqd/222:34:212
7899987,1cyclictest28-21ksoftirqd/220:55:142
7899987,1cyclictest28-21ksoftirqd/200:07:492
7899986,1cyclictest28-21ksoftirqd/222:25:172
7899986,1cyclictest28-21ksoftirqd/220:40:142
7899981,5cyclictest0-21swapper/223:35:122
7899980,7cyclictest25922-21diskmemload23:05:002
7899980,7cyclictest0-21swapper/219:30:142
7899980,6cyclictest3140-21munin-node20:29:012
7899980,5cyclictest254-21systemd-journal23:55:012
7699988,0cyclictest25922-21diskmemload21:46:090
7699987,1cyclictest9-21ksoftirqd/000:30:010
7699987,1cyclictest9-21ksoftirqd/000:10:000
7699986,1cyclictest9-21ksoftirqd/020:10:010
7699981,6cyclictest14737-1kworker/u9:122:26:040
7699981,4cyclictest12851-21users19:30:220
7699980,7cyclictest25724-21ssh21:52:190
7699980,2cyclictest0-21swapper/019:25:170
7699980,1cyclictest8155-21cron22:15:000
7699980,1cyclictest10952-21ssh23:04:190
7969976,1cyclictest35-21ksoftirqd/321:05:003
7969976,0cyclictest25922-21diskmemload22:20:523
7969975,1cyclictest35-21ksoftirqd/320:50:003
7969975,1cyclictest13095-21ssh00:37:313
7969975,1cyclictest10990-21ssh21:32:353
7969974,1cyclictest570-21systemd-logind22:30:203
7969973,2cyclictest254-21systemd-journal21:53:043
7969972,4cyclictest1497-21sendmail-mta00:20:323
7969970,7cyclictest0-21swapper/322:49:063
7969970,4cyclictest0-21swapper/300:05:133
7969970,3cyclictest0-21swapper/300:10:133
7969970,2cyclictest0-21swapper/323:41:353
7969970,2cyclictest0-21swapper/322:25:233
7969970,1cyclictest254-21systemd-journal00:35:003
7899977,0cyclictest0-21swapper/221:54:572
7899976,1cyclictest60950irq/123-eno123:10:182
7899976,1cyclictest60950irq/123-eno122:59:232
7899976,1cyclictest60950irq/123-eno122:10:182
7899976,1cyclictest60950irq/123-eno121:58:212
7899976,1cyclictest28-21ksoftirqd/219:25:132
7899976,0cyclictest60950irq/123-eno100:25:172
7899975,1cyclictest30387-21kworker/2:222:20:172
7899975,1cyclictest28-21ksoftirqd/200:30:152
7899974,2cyclictest554-21in:imuxsock19:55:002
7899974,2cyclictest3140-21munin-node00:11:302
7899974,1cyclictest60950irq/123-eno123:18:212
7899974,1cyclictest25922-21diskmemload00:20:162
7899974,1cyclictest254-21systemd-journal19:46:302
7899973,0cyclictest25922-21diskmemload21:30:032
7899971,5cyclictest546-21irqbalance19:38:562
7899970,7cyclictest0-21swapper/222:35:222
7899970,4cyclictest0-21swapper/221:45:112
7899970,4cyclictest0-21swapper/200:35:032
7789970,6cyclictest0-21swapper/121:40:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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