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2026-08-06 - 05:42
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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 Aug 06, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254292217151,22sleep20-21swapper/219:08:222
252562201161,27sleep30-21swapper/319:06:073
255532200138,21sleep00-21swapper/019:09:570
254282198159,25sleep10-21swapper/119:08:221
309222690,1sleep121-21ksoftirqd/120:25:141
30642590,0sleep00-21swapper/023:02:380
163972200,0sleep1201rcuc/119:55:151
2565999160,1cyclictest30453-21gltestperf22:10:142
25666991313,0cyclictest35-21ksoftirqd/321:39:593
2565999130,13cyclictest0-21swapper/223:25:022
2565999130,1cyclictest12934-21hddtemp_smartct21:45:152
25666991210,1cyclictest35-21ksoftirqd/323:20:003
2565999120,6cyclictest3237-21apt-get00:35:122
25645991210,1cyclictest9-21ksoftirqd/023:00:000
2565999115,5cyclictest19791-21cat22:40:142
2565999113,6cyclictest240-21systemd-journal21:20:002
2565999112,0cyclictest22471-21apt-get22:45:132
2565999111,9cyclictest0-21swapper/200:25:092
2565999110,10cyclictest0-21swapper/221:53:572
2565999110,1cyclictest0-21swapper/222:20:032
2564599119,1cyclictest9-21ksoftirqd/000:20:000
2564599113,4cyclictest8287-21latency_hist19:39:590
2564599110,11cyclictest0-21swapper/021:05:130
174762110,0sleep20-21swapper/222:36:222
2566699109,1cyclictest35-21ksoftirqd/300:30:143
2565999105,4cyclictest6590-21ssh23:54:442
2565999105,4cyclictest32659-21ssh22:59:522
2565999105,4cyclictest26252-21cat23:35:162
2565999104,5cyclictest30836-21sshd23:40:582
2565999104,5cyclictest12129-21sensors00:00:212
2565999101,1cyclictest18692-21diskmemload22:50:112
2565999100,4cyclictest0-21swapper/219:25:122
2565999100,3cyclictest0-21swapper/200:10:162
2565999100,2cyclictest240-21systemd-journal22:05:002
2565999100,2cyclictest240-21systemd-journal20:10:002
2565999100,2cyclictest240-21systemd-journal20:05:002
2565999100,2cyclictest0-21swapper/221:30:072
2565999100,2cyclictest0-21swapper/200:18:372
2565999100,1cyclictest0-21swapper/222:27:452
2565999100,0cyclictest0-21swapper/223:49:252
2565999100,0cyclictest0-21swapper/222:05:212
2564599109,1cyclictest9-21ksoftirqd/022:05:000
2564599109,1cyclictest9-21ksoftirqd/000:09:180
2564599108,1cyclictest9-21ksoftirqd/019:59:590
25645991010,0cyclictest9-21ksoftirqd/022:30:150
256669998,1cyclictest35-21ksoftirqd/323:05:303
256669998,1cyclictest35-21ksoftirqd/321:25:003
256669997,1cyclictest35-21ksoftirqd/300:20:013
256599996,3cyclictest61650irq/122-eno120:35:172
256599994,4cyclictest3077-21ssh23:02:412
256599992,2cyclictest32185-21uname19:20:142
256599992,1cyclictest11399-21cut23:15:122
256599990,8cyclictest18692-21diskmemload00:30:142
256599990,7cyclictest0-21swapper/221:10:162
256599990,3cyclictest0-21swapper/223:23:322
256599990,2cyclictest0-21swapper/221:25:132
256599990,2cyclictest0-21swapper/200:25:002
256599990,2cyclictest0-21swapper/200:25:002
256599990,1cyclictest240-21systemd-journal19:34:562
256599990,1cyclictest0-21swapper/223:59:572
256599990,1cyclictest0-21swapper/221:40:232
256599990,1cyclictest0-21swapper/221:39:572
256599990,1cyclictest0-21swapper/221:20:372
256599990,0cyclictest0-21swapper/220:45:002
256459998,1cyclictest9-21ksoftirqd/021:59:420
256459998,1cyclictest9-21ksoftirqd/021:15:010
256459997,1cyclictest9-21ksoftirqd/021:20:000
256459995,1cyclictest4372-21cron21:34:590
256459992,1cyclictest561-21nscd23:40:450
256459990,8cyclictest26133-21/usr/sbin/munin21:20:160
17760290,0sleep10-21swapper/121:51:311
32130280,1sleep10-21swapper/122:12:381
256669987,1cyclictest35-21ksoftirqd/321:45:143
256669980,4cyclictest20232-21ssh21:55:213
256599987,1cyclictest28-21ksoftirqd/222:35:002
256599986,2cyclictest61650irq/122-eno119:43:302
256599986,1cyclictest61650irq/122-eno121:55:202
256599986,1cyclictest11301-21snmpd20:28:192
256599986,1cyclictest11301-21snmpd19:19:132
256599984,3cyclictest61650irq/122-eno122:15:122
256599983,4cyclictest11301-21snmpd19:39:042
256599983,1cyclictest61650irq/122-eno120:45:182
256599982,1cyclictest32473-21/usr/sbin/munin20:30:122
256599982,1cyclictest22976-21cut20:10:132
256599982,1cyclictest15593-21mailstats21:00:172
256599982,1cyclictest0-21swapper/219:50:162
256599981,1cyclictest29199-21/usr/sbin/munin20:20:192
256599980,2cyclictest9673-21sh23:11:192
256599980,2cyclictest17680-21latency_hist20:00:002
256599980,2cyclictest12957-21munin-run19:49:592
256599980,1cyclictest548-21systemd-logind20:55:212
256599980,1cyclictest240-21systemd-journal19:15:012
256599980,1cyclictest0-21swapper/223:30:212
256599980,1cyclictest0-21swapper/200:07:042
256539981,4cyclictest7010-21taskset23:09:041
256539981,3cyclictest0-21swapper/123:57:551
256539980,5cyclictest0-21swapper/122:20:011
256459987,1cyclictest9-21ksoftirqd/023:20:000
256459987,1cyclictest9-21ksoftirqd/023:10:000
256459987,1cyclictest9-21ksoftirqd/022:25:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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