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2024-09-14 - 16:36
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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 Sat Sep 14, 2024 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2574927049,8sleep10-21swapper/107:07:181
2581326654,8sleep00-21swapper/007:07:590
83232640,0sleep10-21swapper/107:45:111
26180993610,16cyclictest0-21swapper/109:21:571
26180993535,0cyclictest0-21swapper/107:21:381
26179993331,1cyclictest81ktimersoftd/011:55:160
2618099300,29cyclictest0-21swapper/112:30:071
26179993010,19cyclictest0-21swapper/011:20:140
26179992910,19cyclictest0-21swapper/009:28:450
2618099277,17cyclictest29641-21kworker/1:209:59:191
26180992727,0cyclictest0-21swapper/111:20:241
26180992723,3cyclictest3613-21apache211:07:511
26180992719,6cyclictest3640-21apache211:30:511
26180992710,5cyclictest0-21swapper/110:16:331
26179992711,9cyclictest32194-21kworker/u4:009:46:480
26179992710,0cyclictest0-21swapper/012:09:120
26180992619,5cyclictest30492-21sleep11:59:491
26180992520,4cyclictest3613-21apache211:11:361
26179992520,5cyclictest3613-21apache211:32:220
26180992414,5cyclictest3613-21apache210:02:001
26180992410,7cyclictest0-21swapper/110:25:071
2618099240,1cyclictest18342-21ssh10:52:591
2618099240,0cyclictest6516-21sshd10:35:321
26179992422,0cyclictest0-21swapper/011:37:500
26179992419,5cyclictest3613-21apache210:05:260
26179992410,4cyclictest0-21swapper/011:50:060
26180992317,5cyclictest3613-21apache212:20:021
26180992312,5cyclictest0-21swapper/110:08:061
26180992310,6cyclictest0-21swapper/110:33:031
26179992317,4cyclictest18223-21kworker/u4:110:47:090
26179992312,5cyclictest0-21swapper/012:02:190
26180992216,2cyclictest593-21avahi-daemon10:47:181
2618099221,20cyclictest16043-21kworker/1:011:00:431
26180992210,6cyclictest0-21swapper/112:09:041
26180992210,3cyclictest0-21swapper/109:18:431
26180992210,2cyclictest0-21swapper/110:20:341
2617999225,11cyclictest0-21swapper/010:10:070
26179992211,5cyclictest81ktimersoftd/009:24:550
26179992210,5cyclictest0-21swapper/011:43:320
26180992113,3cyclictest0-21swapper/111:15:271
2617999212,2cyclictest0-21swapper/011:26:300
26179992119,1cyclictest15694-21diskstats12:25:060
26179992116,5cyclictest3640-21apache210:31:420
26179992116,4cyclictest3613-21apache208:50:110
26179992116,3cyclictest3613-21apache207:37:430
26179992115,2cyclictest26177-21cyclictest07:10:100
2617999211,3cyclictest0-21swapper/009:31:070
26179992113,4cyclictest18223-21kworker/u4:110:52:480
26179992110,5cyclictest0-21swapper/009:50:440
2953022010,0sleep00-21swapper/007:16:290
2618099204,12cyclictest168-21systemd-journal08:58:091
2618099202,12cyclictest0-21swapper/112:00:081
26180992012,6cyclictest97750irq/106-eth1-rx12:39:171
26180992010,7cyclictest0-21swapper/111:25:501
26180992010,5cyclictest0-21swapper/111:48:181
26180992010,5cyclictest0-21swapper/110:55:081
26180992010,2cyclictest0-21swapper/111:40:061
2617999202,12cyclictest22741-21awk08:24:540
26179992019,1cyclictest717-21snmpd08:04:260
26179992014,4cyclictest31921-21sed07:24:550
26179992010,7cyclictest0-21swapper/010:00:130
26179992010,6cyclictest0-21swapper/007:24:570
2617999200,1cyclictest91rcu_preempt10:25:520
1690022010,0sleep10-21swapper/112:25:321
302902190,0sleep10-21swapper/109:40:071
3006021910,0sleep10-21swapper/108:41:211
26180991918,1cyclictest15468-21apache207:16:501
26180991915,3cyclictest795-21sendmail-mta07:11:141
2618099191,4cyclictest469-21find07:25:131
26180991910,0cyclictest0-21swapper/109:53:091
26180991910,0cyclictest0-21swapper/108:20:141
26179991918,1cyclictest3613-21apache212:24:000
26179991914,2cyclictest97750irq/106-eth1-rx09:36:290
26179991910,5cyclictest0-21swapper/007:42:120
26179991910,2cyclictest3322-21apt-get07:34:550
26179991910,2cyclictest0-21swapper/010:34:560
26179991910,2cyclictest0-21swapper/009:10:050
2618099188,6cyclictest636-21nscd11:37:341
2618099185,8cyclictest5600-21diskstats12:10:071
2618099185,10cyclictest0-21swapper/108:50:111
2618099184,11cyclictest0-21swapper/109:30:071
2618099183,8cyclictest0-21swapper/107:30:071
26180991815,1cyclictest8656-21/usr/sbin/munin10:40:071
26180991813,3cyclictest3613-21apache211:50:461
26180991813,1cyclictest24-21ksoftirqd/109:47:591
26180991810,5cyclictest0-21swapper/109:35:281
26180991810,4cyclictest0-21swapper/109:05:041
26179991818,0cyclictest0-21swapper/011:47:410
26179991816,1cyclictest636-21nscd12:37:590
26179991814,3cyclictest817-21apache208:35:060
26179991812,6cyclictest3640-21apache211:07:230
26179991810,5cyclictest0-21swapper/011:00:510
26179991810,4cyclictest0-21swapper/011:17:310
26179991810,4cyclictest0-21swapper/008:43:060
26179991810,3cyclictest0-21swapper/009:55:090
26179991810,3cyclictest0-21swapper/009:41:260
26179991810,2cyclictest0-21swapper/010:44:170
26179991810,2cyclictest0-21swapper/007:55:140
1662121810,1sleep00-21swapper/008:06:200
2618099179,6cyclictest0-21swapper/108:45:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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