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2026-08-21 - 05:39
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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 Fri Aug 21, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
79312210137,23sleep00-21swapper/019:05:510
82032203163,26sleep20-21swapper/219:09:222
61432202164,25sleep10-21swapper/119:05:071
80602199160,26sleep30-21swapper/319:07:313
152912580,0sleep00-21swapper/019:20:170
32282560,0sleep30-21swapper/321:56:323
833599230,22cyclictest0-21swapper/120:30:111
8327991311,1cyclictest9-21ksoftirqd/022:45:170
8327991211,1cyclictest9-21ksoftirqd/022:30:000
8327991210,1cyclictest9-21ksoftirqd/020:45:000
832799119,1cyclictest9-21ksoftirqd/020:50:010
832799119,1cyclictest9-21ksoftirqd/020:29:590
8327991110,1cyclictest9-21ksoftirqd/022:30:150
835099102,7cyclictest61650irq/122-eno123:34:012
832799109,1cyclictest9-21ksoftirqd/022:35:010
832799109,1cyclictest9-21ksoftirqd/022:15:000
832799109,1cyclictest9-21ksoftirqd/021:20:200
832799108,1cyclictest9-21ksoftirqd/022:00:150
832799103,6cyclictest13764-21latency_hist19:20:010
83589998,1cyclictest35-21ksoftirqd/319:40:003
83589998,1cyclictest28896-21turbostat.cron21:00:013
83589990,8cyclictest1190-21diskmemload00:15:183
83509998,1cyclictest28-21ksoftirqd/220:05:012
83509990,3cyclictest0-21swapper/220:10:102
83279998,1cyclictest9-21ksoftirqd/022:10:140
83279998,1cyclictest9-21ksoftirqd/021:34:590
83279998,1cyclictest9-21ksoftirqd/020:55:120
83279998,1cyclictest9-21ksoftirqd/000:30:220
83279990,8cyclictest27246-21fschecks_time21:45:140
83279990,6cyclictest0-21swapper/000:35:120
83279990,4cyclictest26567-21latency_hist20:55:000
83589981,3cyclictest18673-21apt-get19:30:103
83509988,0cyclictest0-21swapper/200:00:272
83509986,1cyclictest61650irq/122-eno123:55:172
83509986,1cyclictest61650irq/122-eno121:18:402
83509986,1cyclictest61650irq/122-eno120:35:112
83509986,1cyclictest61650irq/122-eno100:30:122
83509986,1cyclictest61650irq/122-eno100:25:132
83509986,1cyclictest28-21ksoftirqd/219:10:102
83509986,1cyclictest11301-21snmpd23:25:062
83509986,1cyclictest11301-21snmpd22:00:042
83509986,1cyclictest11301-21snmpd21:51:032
83509986,1cyclictest11301-21snmpd00:15:252
83509981,4cyclictest0-21swapper/200:37:102
83509981,1cyclictest0-21swapper/220:24:322
83509980,5cyclictest1190-21diskmemload23:50:162
83509980,5cyclictest0-21swapper/222:05:592
83509980,5cyclictest0-21swapper/221:31:162
83509980,5cyclictest0-21swapper/220:05:122
83509980,4cyclictest0-21swapper/221:27:062
83509980,4cyclictest0-21swapper/219:25:112
83359985,0cyclictest0-21swapper/122:30:201
83279988,0cyclictest9-21ksoftirqd/000:05:000
83279988,0cyclictest9-21ksoftirqd/000:00:130
83279987,1cyclictest9-21ksoftirqd/023:45:140
83279987,1cyclictest9-21ksoftirqd/020:15:120
83279986,1cyclictest16112-21sendmail_mailqu20:30:190
83279986,1cyclictest11301-21snmpd22:24:520
83279986,1cyclictest11301-21snmpd20:21:540
83279981,1cyclictest22665-21unixbench_multi19:35:190
83279980,6cyclictest10861-21apt-get22:55:100
83279980,5cyclictest14397-21apt-get23:00:120
83279980,1cyclictest4089-21ssh21:59:180
22030280,0sleep00-21swapper/023:10:140
21422280,7sleep00-21swapper/021:35:470
83589976,1cyclictest11301-21snmpd23:13:203
83589976,1cyclictest11301-21snmpd22:27:173
83589976,1cyclictest11301-21snmpd20:17:233
83589975,1cyclictest19438-21ssh00:38:573
83589975,1cyclictest11301-21snmpd23:21:423
83589975,1cyclictest11301-21snmpd23:21:413
83589975,1cyclictest11301-21snmpd22:24:183
83589974,1cyclictest1190-21diskmemload00:02:303
83589974,1cyclictest0-21swapper/323:27:263
83589972,1cyclictest1190-21diskmemload23:52:133
83589971,3cyclictest1190-21diskmemload23:45:153
83589971,1cyclictest15380-21ssh21:29:173
83589970,5cyclictest11372-21df22:55:123
83589970,3cyclictest0-21swapper/321:16:113
83509976,1cyclictest61650irq/122-eno123:02:582
83509976,1cyclictest61650irq/122-eno122:50:182
83509976,1cyclictest61650irq/122-eno122:28:082
83509976,1cyclictest61650irq/122-eno122:10:172
83509976,1cyclictest61650irq/122-eno121:45:292
83509976,1cyclictest61650irq/122-eno121:14:142
83509976,1cyclictest61650irq/122-eno121:00:002
83509976,1cyclictest61650irq/122-eno100:10:142
83509976,1cyclictest28-21ksoftirqd/219:42:562
83509976,1cyclictest1534-21ntpq22:40:162
83509975,2cyclictest28-21ksoftirqd/220:29:542
83509975,1cyclictest61650irq/122-eno121:00:202
83509975,1cyclictest5302-21ssh22:45:212
83509975,1cyclictest11301-21snmpd23:47:452
83509975,1cyclictest11301-21snmpd23:05:172
83509974,1cyclictest240-21systemd-journal23:00:002
83509974,1cyclictest240-21systemd-journal19:24:592
83509973,2cyclictest240-21systemd-journal22:19:592
83509971,6cyclictest0-21swapper/219:34:082
83509971,6cyclictest0-21swapper/200:20:502
83509971,5cyclictest25755-21apt-get19:45:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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