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2026-06-06 - 19:59
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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 Jun 06, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2477821070,0sleep00-21swapper/021:54:090
96172740,0sleep09616-21seq23:44:030
682527049,17sleep10-21swapper/119:05:091
698826855,8sleep00-21swapper/019:06:510
292182660,0sleep10-21swapper/123:27:551
7350994140,0cyclictest0-21swapper/020:24:040
7350993432,1cyclictest81ktimersoftd/021:04:010
735099284,23cyclictest0-21swapper/022:56:040
7351992723,3cyclictest231ktimersoftd/121:14:061
735199272,24cyclictest23599-21/usr/sbin/munin00:03:591
7351992617,6cyclictest3892-21ssh22:09:571
7350992626,0cyclictest0-21swapper/022:00:230
7350992610,2cyclictest0-21swapper/021:18:310
7351992522,3cyclictest23513-21munin-node00:24:151
735199252,21cyclictest0-21swapper/123:30:571
735199251,4cyclictest0-21swapper/100:38:271
735199250,21cyclictest0-21swapper/122:15:481
7350992519,5cyclictest24708-21apache200:16:160
269522510,2sleep00-21swapper/021:25:520
7351992416,6cyclictest24708-21apache221:53:531
7351992412,6cyclictest24678-21apache223:07:321
735099242,18cyclictest0-21swapper/023:08:100
7350992420,3cyclictest24678-21apache223:01:440
7350992418,5cyclictest24708-21apache220:01:550
7350992410,6cyclictest0-21swapper/020:08:580
7350992410,2cyclictest0-21swapper/000:23:170
735099240,23cyclictest0-21swapper/020:48:290
7351992320,2cyclictest6380-21memory20:29:011
7351992319,3cyclictest0-21swapper/123:12:371
7351992317,5cyclictest24678-21apache223:17:521
7351992312,8cyclictest24678-21apache223:23:431
735099237,6cyclictest0-21swapper/019:28:570
7350992310,8cyclictest0-21swapper/023:48:490
7350992310,5cyclictest0-21swapper/021:08:500
7350992310,4cyclictest0-21swapper/022:38:570
7350992310,2cyclictest0-21swapper/022:33:530
7351992220,2cyclictest24678-21apache221:50:541
7351992216,4cyclictest24678-21apache223:03:261
7351992212,6cyclictest0-21swapper/100:19:001
7351992210,7cyclictest0-21swapper/120:23:011
7351992210,3cyclictest0-21swapper/122:32:481
7351992210,1cyclictest0-21swapper/122:00:261
7351992210,0cyclictest0-21swapper/123:55:141
735099226,11cyclictest0-21swapper/022:28:570
7350992221,0cyclictest0-21swapper/023:39:410
7350992215,4cyclictest744-21snmpd19:52:220
7350992210,2cyclictest0-21swapper/000:25:300
7350992210,1cyclictest0-21swapper/000:08:570
735099220,9cyclictest0-21swapper/022:24:010
735199214,11cyclictest0-21swapper/119:44:061
7351992119,1cyclictest20946-21diskmemload23:50:161
7351992117,4cyclictest24678-21apache200:03:261
7351992110,5cyclictest0-21swapper/123:34:031
735099216,9cyclictest0-21swapper/000:03:580
7350992118,2cyclictest0-21swapper/021:19:520
7350992110,5cyclictest0-21swapper/019:43:580
7350992110,3cyclictest0-21swapper/019:56:200
7350992110,2cyclictest0-21swapper/021:48:570
1740922110,0sleep00-21swapper/021:44:390
735199206,13cyclictest0-21swapper/100:14:041
7351992020,0cyclictest0-21swapper/122:37:111
7351992015,4cyclictest24678-21apache222:41:481
7351992012,3cyclictest0-21swapper/121:24:251
7351992011,5cyclictest0-21swapper/121:41:061
7351992010,9cyclictest0-21swapper/122:54:011
7351992010,5cyclictest0-21swapper/120:14:011
7350992014,4cyclictest0-21swapper/023:13:240
7350992010,4cyclictest0-21swapper/022:47:340
7350992010,4cyclictest0-21swapper/021:29:020
7350992010,3cyclictest0-21swapper/000:29:020
7350992010,2cyclictest0-21swapper/022:20:440
7350992010,2cyclictest0-21swapper/022:14:210
735199195,5cyclictest0-21swapper/119:34:021
735199192,9cyclictest0-21swapper/120:39:061
7351991918,1cyclictest0-21swapper/121:09:381
7351991917,1cyclictest24708-21apache221:44:261
7351991911,1cyclictest100350irq/108-eth1-tx23:46:591
735199191,11cyclictest0-21swapper/119:49:031
7351991910,2cyclictest0-21swapper/119:14:041
7351991910,1cyclictest0-21swapper/122:20:141
735099197,8cyclictest0-21swapper/023:24:050
735099195,7cyclictest0-21swapper/019:19:040
735099192,8cyclictest0-21swapper/022:04:020
7350991913,5cyclictest100150irq/106-eth1-rx00:36:060
7350991913,4cyclictest0-21swapper/020:34:060
7350991910,4cyclictest0-21swapper/023:58:580
7350991910,3cyclictest0-21swapper/020:13:580
7350991910,3cyclictest0-21swapper/019:23:570
7350991910,2cyclictest0-21swapper/019:33:560
7350991910,1cyclictest0-21swapper/023:21:330
662721910,0sleep10-21swapper/121:30:541
206421910,0sleep00-21swapper/022:50:550
1636021910,1sleep10-21swapper/119:29:151
1482821910,0sleep10-21swapper/122:24:081
735199183,6cyclictest0-21swapper/100:29:081
735199183,11cyclictest0-21swapper/120:58:581
735199182,6cyclictest0-21swapper/122:49:021
7351991816,1cyclictest24678-21apache219:11:341
7351991813,4cyclictest23513-21munin-node22:45:061
7351991810,4cyclictest0-21swapper/121:37:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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