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2026-07-31 - 20:51
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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 Jul 31, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
87992212150,22sleep30-21swapper/307:08:333
88012211147,20sleep00-21swapper/007:08:330
87822210156,42sleep10-21swapper/107:08:181
86842200162,25sleep20-21swapper/207:07:022
199092190,0sleep20-21swapper/210:20:142
161232190,0sleep216126-21sendmail_mailqu12:30:192
149022160,0sleep10-21swapper/110:59:061
9044991211,1cyclictest14797-21sh10:12:002
9044991211,1cyclictest14797-21sh10:12:002
901799114,6cyclictest11301-21snmpd08:40:000
901799110,5cyclictest19341-21sed07:30:000
905499104,3cyclictest240-21systemd-journal12:09:553
905499100,9cyclictest2054-21diskmemload09:24:333
904499100,1cyclictest0-21swapper/210:34:442
324542100,1sleep20-21swapper/210:37:172
90309990,5cyclictest203-21jbd2/sda2-807:55:051
90179999,0cyclictest9-21ksoftirqd/010:40:000
90179991,4cyclictest2054-21diskmemload11:36:220
90179990,4cyclictest2054-21diskmemload09:19:530
90179990,4cyclictest11671-21perf10:59:560
14740290,0sleep20-21swapper/210:58:362
90549987,1cyclictest35-21ksoftirqd/311:21:193
90549986,1cyclictest9004-21cyclictest12:14:523
90549986,1cyclictest11301-21snmpd12:17:393
90549986,1cyclictest11301-21snmpd11:12:383
90549986,1cyclictest11301-21snmpd10:41:183
90549986,1cyclictest11301-21snmpd10:38:493
90549986,1cyclictest11301-21snmpd09:45:203
90549986,1cyclictest11301-21snmpd09:34:073
90549986,1cyclictest11301-21snmpd09:10:023
90549986,1cyclictest11301-21snmpd08:18:543
90549985,2cyclictest11301-21snmpd09:56:423
90549982,2cyclictest693-21runrttasks10:15:103
90549981,4cyclictest16801-21/usr/sbin/munin11:00:203
90449986,1cyclictest61650irq/122-eno110:26:092
90449986,1cyclictest28-21ksoftirqd/208:39:142
90449985,3cyclictest12333-21taskset08:20:202
90309981,6cyclictest0-21swapper/109:11:221
90309981,3cyclictest0-21swapper/112:30:111
90309980,4cyclictest0-21swapper/109:15:081
90309980,1cyclictest0-21swapper/111:15:121
90179986,1cyclictest9-21ksoftirqd/007:35:000
90179986,1cyclictest11301-21snmpd12:10:440
90179986,1cyclictest11301-21snmpd10:15:580
90179986,1cyclictest11301-21snmpd08:57:420
90179984,1cyclictest0-21swapper/008:25:180
90179983,4cyclictest32352-21/usr/sbin/munin09:05:190
90179982,4cyclictest11532-21cron07:15:010
90179982,1cyclictest2054-21diskmemload09:30:130
90179981,6cyclictest2054-21diskmemload11:20:170
90179980,7cyclictest28629-21ssh10:31:170
90179980,7cyclictest0-21swapper/012:35:230
90179980,6cyclictest791-21ssh11:25:050
90179980,4cyclictest0-21swapper/011:55:090
90179980,4cyclictest0-21swapper/009:40:100
90179980,3cyclictest0-21swapper/010:20:120
90179980,1cyclictest31195-21timerwakeupswit12:05:220
90179980,1cyclictest29156-21ssh12:04:340
10557280,0sleep20-21swapper/210:51:322
90549976,1cyclictest25364-21cat07:40:173
90549976,1cyclictest11301-21snmpd12:35:043
90549975,1cyclictest35-21ksoftirqd/308:10:113
90549975,1cyclictest26628-21ssh09:43:423
90549975,1cyclictest22368-21ssh10:23:443
90549975,1cyclictest11301-21snmpd10:27:273
90549975,1cyclictest11301-21snmpd09:39:213
90549975,1cyclictest11301-21snmpd08:38:003
90549975,1cyclictest11301-21snmpd07:34:163
90549972,4cyclictest10929-21apt-get08:20:123
90549972,2cyclictest240-21systemd-journal09:20:003
90549971,4cyclictest27798-21sh11:15:233
90549970,4cyclictest0-21swapper/311:25:023
90549970,4cyclictest0-21swapper/310:00:113
90549970,2cyclictest0-21swapper/311:36:023
90449976,1cyclictest61650irq/122-eno112:38:302
90449976,1cyclictest61650irq/122-eno112:13:582
90449976,1cyclictest61650irq/122-eno111:55:092
90449976,1cyclictest61650irq/122-eno111:51:592
90449976,1cyclictest61650irq/122-eno111:45:172
90449976,1cyclictest61650irq/122-eno111:26:372
90449976,1cyclictest61650irq/122-eno111:05:212
90449976,1cyclictest61650irq/122-eno111:00:222
90449976,1cyclictest61650irq/122-eno110:45:012
90449976,1cyclictest61650irq/122-eno110:45:012
90449976,1cyclictest61650irq/122-eno110:05:322
90449976,1cyclictest61650irq/122-eno110:00:162
90449976,1cyclictest61650irq/122-eno107:35:222
90449976,1cyclictest61650irq/122-eno107:20:142
90449976,1cyclictest28-21ksoftirqd/208:20:002
90449975,1cyclictest61650irq/122-eno108:30:182
90449975,1cyclictest5191-21rm09:14:082
90449970,5cyclictest14694-21kworker/u8:009:15:192
90449970,3cyclictest0-21swapper/212:20:102
90309972,4cyclictest0-21swapper/107:40:131
90309971,4cyclictest0-21swapper/109:50:221
90309971,3cyclictest0-21swapper/110:35:211
90309971,1cyclictest0-21swapper/110:41:211
90309970,4cyclictest0-21swapper/109:45:131
90309970,4cyclictest0-21swapper/107:15:111
90309970,1cyclictest0-21swapper/111:54:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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