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2026-08-24 - 06:21
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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 all highest latencies:
System rackcslot2.osadl.org (updated Mon Aug 24, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3158527361,7sleep00-21swapper/019:04:380
3172626955,9sleep10-21swapper/119:06:081
32093993410,0cyclictest0-21swapper/100:26:231
32093993333,0cyclictest0-21swapper/123:12:341
32093993011,15cyclictest23748-21kworker/1:022:00:281
32092993021,5cyclictest0-21swapper/023:46:220
3209299300,30cyclictest0-21swapper/019:11:030
32093992910,3cyclictest0-21swapper/121:16:091
3209399290,1cyclictest19529-21/usr/sbin/munin22:48:181
32093992824,3cyclictest0-21swapper/119:26:291
32092992828,0cyclictest0-21swapper/000:19:100
3209299282,23cyclictest0-21swapper/021:52:110
32093992710,1cyclictest0-21swapper/122:37:471
32092992727,0cyclictest0-21swapper/019:58:400
3209299270,24cyclictest0-21swapper/000:34:320
3209399262,23cyclictest0-21swapper/121:34:141
3209399261,24cyclictest0-21swapper/100:14:191
32093992610,1cyclictest0-21swapper/123:06:571
32093992525,0cyclictest0-21swapper/121:39:031
32092992510,0cyclictest0-21swapper/022:22:000
3209299250,22cyclictest13356-21diskmemload22:52:070
32093992424,0cyclictest0-21swapper/119:36:221
32093992422,1cyclictest24-21ksoftirqd/122:28:041
32093992421,3cyclictest4521-21apache221:30:381
32093992418,3cyclictest0-21swapper/122:13:201
32093992411,5cyclictest0-21swapper/100:28:231
3209299249,11cyclictest335-21ls21:33:250
3209299243,20cyclictest0-21swapper/023:31:010
32092992419,4cyclictest585-21gmain20:30:180
32092992410,2cyclictest0-21swapper/019:32:470
32093992320,3cyclictest4521-21apache221:56:381
32093992320,1cyclictest0-21swapper/122:31:021
32093992310,9cyclictest0-21swapper/100:08:041
32092992318,3cyclictest81ktimersoftd/019:48:160
3209399227,11cyclictest4495-21apache220:53:201
32093992214,7cyclictest26184-21ntpq23:43:211
3209399220,19cyclictest23416-21ssh21:21:001
32092992222,0cyclictest0-21swapper/023:15:060
32092992217,1cyclictest0-21swapper/022:23:420
3209299221,11cyclictest0-21swapper/022:36:250
32092992210,8cyclictest0-21swapper/000:17:140
32092992210,1cyclictest0-21swapper/023:03:240
32093992119,1cyclictest15905-21ntp_states19:48:221
32093992110,9cyclictest100150irq/106-eth1-rx00:19:381
3209299215,15cyclictest0-21swapper/021:53:210
32092992116,4cyclictest32090-21cyclictest22:01:510
32092992113,6cyclictest15161-21ssh21:08:560
3209299211,20cyclictest0-21swapper/021:38:350
32092992110,8cyclictest0-21swapper/022:44:470
32092992110,8cyclictest0-21swapper/000:23:190
32092992110,4cyclictest0-21swapper/020:14:230
32092992110,3cyclictest0-21swapper/023:48:160
3209399206,7cyclictest0-21swapper/119:53:261
3209399205,6cyclictest0-21swapper/123:58:261
3209399204,14cyclictest0-21swapper/120:18:221
32093992019,1cyclictest0-21swapper/121:43:281
3209399201,13cyclictest0-21swapper/119:58:151
32093992010,5cyclictest0-21swapper/123:49:411
32093992010,4cyclictest0-21swapper/121:23:251
32093992010,1cyclictest0-21swapper/123:39:231
3209299205,6cyclictest0-21swapper/019:18:230
32092992016,3cyclictest4495-21apache220:47:330
32092992016,3cyclictest0-21swapper/019:38:170
3209299201,4cyclictest0-21swapper/023:10:290
32092992013,5cyclictest636-21nscd22:59:080
32092992013,1cyclictest0-21swapper/020:53:160
32092992011,3cyclictest0-21swapper/021:46:290
32092992010,5cyclictest24703-21kworker/u4:222:16:110
32092992010,5cyclictest0-21swapper/000:03:160
32092992010,3cyclictest0-21swapper/023:58:230
32092992010,3cyclictest0-21swapper/021:14:560
32092992010,1cyclictest0-21swapper/022:06:280
32092992010,0cyclictest0-21swapper/000:09:060
3209299200,8cyclictest0-21swapper/020:33:160
552521910,0sleep10-21swapper/120:46:411
3209399195,11cyclictest0-21swapper/120:58:181
3209399194,14cyclictest0-21swapper/121:48:211
3209399193,7cyclictest0-21swapper/122:53:181
32093991917,2cyclictest0-21swapper/123:16:131
32093991915,2cyclictest32090-21cyclictest22:18:201
32093991912,4cyclictest100150irq/106-eth1-rx23:31:521
32093991910,4cyclictest0-21swapper/120:23:231
32093991910,2cyclictest0-21swapper/120:48:171
3209399190,3cyclictest0-21swapper/122:59:571
3209299193,11cyclictest0-21swapper/022:28:160
3209299192,9cyclictest0-21swapper/020:18:240
32092991919,0cyclictest0-21swapper/023:36:020
32092991917,1cyclictest0-21swapper/023:22:130
32092991915,2cyclictest30605-21kworker/u4:123:56:430
32092991910,4cyclictest0-21swapper/021:23:100
32092991910,3cyclictest0-21swapper/022:12:580
32092991910,2cyclictest0-21swapper/023:38:130
3209399187,4cyclictest0-21swapper/119:21:551
3209399184,8cyclictest0-21swapper/121:03:191
3209399183,8cyclictest0-21swapper/119:13:151
32093991817,0cyclictest1105-21ls23:53:251
32093991812,4cyclictest100150irq/106-eth1-rx19:28:231
32093991812,3cyclictest4495-21apache222:44:231
32093991810,5cyclictest0-21swapper/120:38:251
32093991810,4cyclictest0-21swapper/123:18:161
32093991810,3cyclictest0-21swapper/123:33:161
32093991810,3cyclictest0-21swapper/121:08:241
32093991810,3cyclictest0-21swapper/119:43:251
3209399180,3cyclictest0-21swapper/122:04:221
32092991818,0cyclictest802-21apache219:15:540
32092991816,2cyclictest4495-21apache222:55:470
32092991812,5cyclictest0-21swapper/019:33:170
32092991810,5cyclictest0-21swapper/023:23:210
32092991810,2cyclictest0-21swapper/020:58:220
3209299180,11cyclictest0-21swapper/000:28:370
3209399174,7cyclictest0-21swapper/100:08:261
3209399172,9cyclictest0-21swapper/119:08:191
3209399172,4cyclictest0-21swapper/122:09:131
32093991717,0cyclictest4521-21apache220:11:101
32093991713,3cyclictest0-21swapper/120:33:161
32093991710,5cyclictest0-21swapper/122:38:201
3209399170,13cyclictest0-21swapper/120:03:171
3209299176,10cyclictest0-21swapper/020:38:220
3209299172,11cyclictest12604-21apache_volume22:38:160
32092991710,5cyclictest0-21swapper/021:28:160
32092991710,2cyclictest0-21swapper/021:21:170
32092991710,2cyclictest0-21swapper/019:23:170
3209399169,3cyclictest11407-21cpuspeed_turbos19:38:171
3209399162,7cyclictest0-21swapper/100:33:231
32093991610,4cyclictest0-21swapper/123:23:181
3209299162,8cyclictest0-21swapper/020:08:160
32092991611,3cyclictest0-21swapper/019:43:160
3209399152,8cyclictest0-21swapper/120:13:171
32093991510,2cyclictest0-21swapper/120:28:151
3209299157,6cyclictest0-21swapper/020:03:180
3209299152,4cyclictest0-21swapper/021:03:210
32092991510,0cyclictest0-21swapper/020:23:160
3209299143,5cyclictest17859-21/usr/sbin/munin19:53:240
32092991410,2cyclictest0-21swapper/020:48:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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