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2024-05-29 - 01:34
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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 rackcslot2.osadl.org (updated Tue May 28, 2024 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1601028035,40sleep00-21swapper/007:00:190
1624526956,8sleep10-21swapper/107:02:481
37432660,2sleep01661299cyclictest11:14:190
21212630,0sleep00-21swapper/007:49:530
21212630,0sleep00-21swapper/007:49:530
1661299219,2cyclictest584-21in:imuxsock07:25:220
1661299219,2cyclictest20802-21lockfile-create10:54:420
16612992012,2cyclictest10503-21apache_accesses12:04:540
16612992011,2cyclictest7-21ksoftirqd/009:30:000
16612992010,2cyclictest7-21ksoftirqd/009:29:420
16612992010,1cyclictest171-21systemd-journal10:59:420
16612991911,1cyclictest7-21ksoftirqd/010:30:020
16613991816,1cyclictest4330-21ls11:55:131
16612991811,2cyclictest30856-21apache_accesses09:04:530
16612991811,2cyclictest29723-21diskstats10:25:000
16612991811,2cyclictest11549-21apache_processe08:14:550
16612991811,1cyclictest7-21ksoftirqd/011:15:040
16612991810,2cyclictest27769-21apache_volume11:44:530
2506621710,6sleep00-21swapper/012:24:310
16613991716,0cyclictest17238-21ssh12:13:551
1661299177,2cyclictest7-21ksoftirqd/011:44:430
16612991711,3cyclictest9546-21df09:59:540
16612991710,2cyclictest7682-21apache_volume08:04:550
16612991710,2cyclictest7-21ksoftirqd/008:44:520
16612991710,2cyclictest32395-21apache_accesses07:44:540
16612991710,2cyclictest18846-21diskstats07:09:530
16612991710,2cyclictest17826-21apache_processe12:14:510
16612991710,2cyclictest11151-21irqstats09:20:020
16612991710,2cyclictest10047-21ntp_states10:40:020
16612991710,1cyclictest7-21ksoftirqd/007:29:430
16612991710,1cyclictest5987-21diskstats07:59:560
16613991616,0cyclictest27464-21ssh12:26:361
16613991616,0cyclictest0-21swapper/110:03:011
16613991615,1cyclictest6336-21ls09:55:041
16613991615,1cyclictest4836-21mailstats07:55:071
16613991610,6cyclictest0-21swapper/110:39:561
1661299169,2cyclictest3067-21users09:50:110
1661299169,2cyclictest22474-21apache_processe07:19:520
1661299169,2cyclictest21362-21apache_accesses10:14:530
1661299169,2cyclictest15374-21apache_processe08:24:530
1661299168,1cyclictest91rcu_preempt11:25:060
1661299167,2cyclictest23539-21cat11:39:430
1661299166,1cyclictest91rcu_preempt09:44:430
16612991616,0cyclictest0-21swapper/007:42:360
16612991613,2cyclictest7-21ksoftirqd/007:39:430
16612991613,1cyclictest7-21ksoftirqd/011:50:040
16612991611,2cyclictest28865-21apache_volume08:59:560
16612991610,2cyclictest9596-21apache_processe08:09:530
16612991610,2cyclictest6695-21apache_volume11:59:530
16612991610,2cyclictest20565-21apache_accesses07:14:520
16613991515,0cyclictest0-21swapper/109:10:071
16613991515,0cyclictest0-21swapper/108:54:011
16613991514,1cyclictest3156-21ssh11:13:011
16613991513,1cyclictest633-21nscd09:04:581
16613991512,2cyclictest0-21swapper/108:04:531
16613991510,5cyclictest0-21swapper/111:19:421
16613991510,5cyclictest0-21swapper/107:49:121
1661299159,3cyclictest2549-21apache_processe09:09:540
1661299159,2cyclictest21134-21apache_accesses08:39:510
1661299159,1cyclictest7-21ksoftirqd/012:11:540
1661299158,1cyclictest7-21ksoftirqd/010:23:540
1661299157,2cyclictest7-21ksoftirqd/010:45:000
1661299157,2cyclictest7-21ksoftirqd/008:19:570
1661299157,1cyclictest91rcu_preempt09:45:040
1661299156,1cyclictest91rcu_preempt10:05:050
16612991514,1cyclictest25160-21ssh09:38:070
16612991514,0cyclictest7-21ksoftirqd/007:08:090
16612991512,2cyclictest7-21ksoftirqd/011:24:430
16612991510,5cyclictest0-21swapper/012:34:330
16612991510,5cyclictest0-21swapper/010:10:530
16612991510,2cyclictest7242-21irqstats09:14:590
16612991510,2cyclictest7-21ksoftirqd/010:59:550
16612991510,2cyclictest19226-21apache_processe08:34:530
16613991414,0cyclictest17163-21ssh09:27:561
16613991414,0cyclictest0-21swapper/108:14:061
16613991413,1cyclictest93650irq/99-eth0-rx-11:24:541
16613991412,1cyclictest31242-21rm11:49:161
16613991412,1cyclictest29439-21/usr/sbin/munin10:25:071
16613991412,1cyclictest26555-21apache212:03:441
16613991412,1cyclictest26529-21apache212:15:571
16613991412,1cyclictest26529-21apache209:15:301
16613991412,1cyclictest231ktimersoftd/110:34:521
16613991412,1cyclictest11304-21watchprog-snmpd10:31:521
16613991412,1cyclictest10467-21apache207:20:061
16613991411,2cyclictest93650irq/99-eth0-rx-09:33:031
16613991411,2cyclictest26529-21apache210:59:511
16613991411,2cyclictest0-21swapper/107:43:491
16613991410,4cyclictest0-21swapper/111:20:351
16613991410,4cyclictest0-21swapper/108:00:011
16613991410,4cyclictest0-21swapper/107:32:331
16613991410,4cyclictest0-21swapper/107:18:331
16613991410,4cyclictest0-21swapper/107:14:251
16613991410,4cyclictest0-21swapper/107:09:051
16613991410,3cyclictest3105-21ls07:50:091
16613991410,3cyclictest3105-21ls07:50:091
16613991410,3cyclictest0-21swapper/111:35:141
16613991410,1cyclictest21791-21kworker/u4:109:35:401
16613991410,1cyclictest14507-21kworker/u4:212:31:521
16613991410,0cyclictest0-21swapper/112:20:551
16613991410,0cyclictest0-21swapper/110:50:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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