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2026-03-11 - 15:38
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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 Wed Mar 11, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
148912219152,22sleep00-21swapper/007:07:280
148912219152,22sleep00-21swapper/007:07:280
147532211154,44sleep10-21swapper/107:05:401
147532211154,44sleep10-21swapper/107:05:401
149212199159,27sleep30-21swapper/307:07:513
149212199159,27sleep30-21swapper/307:07:503
148762199160,25sleep20-21swapper/207:07:182
148762199160,25sleep20-21swapper/207:07:172
218682620,0sleep10-21swapper/110:47:161
207302580,0sleep10-21swapper/111:27:491
315252550,0sleep20-21swapper/209:36:242
46512470,0sleep20-21swapper/211:06:312
175392190,1sleep217542-21fschecks_time09:20:132
70022160,0sleep00-21swapper/009:05:180
198632150,0sleep30-21swapper/310:45:133
319852130,0sleep10-21swapper/108:50:131
15178991311,1cyclictest9-21ksoftirqd/007:50:000
15178991210,1cyclictest9-21ksoftirqd/009:35:100
322752110,0sleep30-21swapper/311:42:293
1519999119,1cyclictest35-21ksoftirqd/308:15:013
1519199110,0cyclictest0-21swapper/210:37:102
1517899119,1cyclictest9-21ksoftirqd/010:19:590
15178991110,1cyclictest9-21ksoftirqd/010:10:010
1519999109,1cyclictest35-21ksoftirqd/311:25:133
1519999109,1cyclictest35-21ksoftirqd/308:05:013
1519999109,1cyclictest35-21ksoftirqd/308:00:003
1519999109,1cyclictest35-21ksoftirqd/307:20:013
1519199108,1cyclictest28-21ksoftirqd/210:35:002
1519199108,1cyclictest28-21ksoftirqd/209:54:592
1519199100,6cyclictest0-21swapper/211:10:122
1517899109,1cyclictest9-21ksoftirqd/012:10:010
1517899109,1cyclictest9-21ksoftirqd/011:30:130
1517899109,1cyclictest9-21ksoftirqd/007:35:000
1517899109,1cyclictest9-21ksoftirqd/007:30:000
1517899108,1cyclictest9-21ksoftirqd/011:45:130
1517899108,1cyclictest9-21ksoftirqd/010:30:120
1517899105,4cyclictest29668-21ntp_kernel_pll_12:20:170
1517899104,1cyclictest9-21ksoftirqd/007:55:180
15178991010,0cyclictest9-21ksoftirqd/010:35:120
108172100,0sleep20-21swapper/209:12:022
2394290,0sleep30-21swapper/312:26:583
22811290,0sleep00-21swapper/009:25:240
151999999,0cyclictest35-21ksoftirqd/308:40:133
151999998,1cyclictest35-21ksoftirqd/312:15:123
151999998,1cyclictest35-21ksoftirqd/312:10:143
151999998,1cyclictest35-21ksoftirqd/307:40:143
151999997,1cyclictest19210-21munin-run08:25:003
151919997,1cyclictest28-21ksoftirqd/210:52:032
151919990,6cyclictest20848-21python08:25:182
151789998,1cyclictest9-21ksoftirqd/011:55:100
151789998,1cyclictest9-21ksoftirqd/011:40:120
151789998,1cyclictest9-21ksoftirqd/009:30:110
151789998,1cyclictest9-21ksoftirqd/009:20:100
151789998,1cyclictest9-21ksoftirqd/007:24:590
151789997,1cyclictest9-21ksoftirqd/011:25:000
151789997,1cyclictest9-21ksoftirqd/009:00:120
151789996,2cyclictest15169-21cyclictest11:25:190
151789992,4cyclictest17503-21munin-node07:15:010
151789991,4cyclictest11605-21latency_hist12:40:000
20307280,1sleep10-21swapper/112:09:391
15270280,0sleep30-21swapper/309:57:213
151999987,1cyclictest35-21ksoftirqd/311:30:103
151999987,1cyclictest35-21ksoftirqd/311:20:133
151999987,1cyclictest35-21ksoftirqd/310:50:123
151999987,1cyclictest35-21ksoftirqd/310:10:133
151999987,1cyclictest35-21ksoftirqd/307:50:133
151999986,1cyclictest707-21snmpd09:54:543
151999986,1cyclictest707-21snmpd09:25:443
151999986,1cyclictest707-21snmpd08:37:013
151999981,5cyclictest22003-21kworker/u8:212:08:463
151999980,1cyclictest0-21swapper/310:20:103
151919988,0cyclictest0-21swapper/210:17:472
151919987,1cyclictest28-21ksoftirqd/207:15:012
151919986,1cyclictest707-21snmpd10:49:472
151919986,1cyclictest61650irq/122-eno112:05:112
151919986,1cyclictest61650irq/122-eno111:24:092
151919986,1cyclictest61650irq/122-eno110:23:342
151919986,1cyclictest61650irq/122-eno109:43:412
151919986,1cyclictest32135-21perf12:24:592
151919986,1cyclictest28-21ksoftirqd/212:34:592
151919981,7cyclictest24001-21sh09:28:032
151919981,6cyclictest0-21swapper/210:01:122
151919981,5cyclictest25262-21/usr/sbin/munin10:10:142
151919980,6cyclictest10732-21unixbench-2d11:55:202
151789988,0cyclictest9-21ksoftirqd/009:10:110
151789987,1cyclictest9-21ksoftirqd/012:10:140
151789987,1cyclictest9-21ksoftirqd/011:50:200
151789987,1cyclictest9-21ksoftirqd/011:10:180
151789987,1cyclictest9-21ksoftirqd/010:55:160
151789987,1cyclictest9-21ksoftirqd/010:00:120
151789987,1cyclictest9-21ksoftirqd/009:50:100
151789987,1cyclictest9-21ksoftirqd/009:45:110
151789987,1cyclictest9-21ksoftirqd/009:40:130
151789987,1cyclictest9-21ksoftirqd/007:35:120
151789986,1cyclictest9-21ksoftirqd/011:15:200
151789986,1cyclictest9-21ksoftirqd/010:50:120
151789985,1cyclictest5648-21ssh12:30:190
151789982,0cyclictest8219-21diskmemload12:16:550
151789980,7cyclictest2425-21ssh12:27:040
151789980,7cyclictest12598-21ssh09:15:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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