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2025-11-06 - 04:50
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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 Thu Nov 06, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
386427352,16sleep10-21swapper/119:02:431
399127057,8sleep00-21swapper/019:04:000
66912630,1sleep00-21swapper/020:37:060
4444993310,19cyclictest0-21swapper/100:29:541
444499300,29cyclictest0-21swapper/121:58:191
4443993028,1cyclictest7-21ksoftirqd/000:16:520
4443993010,0cyclictest0-21swapper/022:40:340
444499290,1cyclictest0-21swapper/121:53:241
4444992825,2cyclictest231ktimersoftd/100:32:041
444499280,0cyclictest0-21swapper/122:02:131
4443992821,3cyclictest4441-21cyclictest23:47:520
4444992619,7cyclictest23469-21apache222:07:341
4444992618,2cyclictest4441-21cyclictest21:16:521
4444992610,4cyclictest0-21swapper/121:44:001
4444992610,1cyclictest0-21swapper/123:02:391
4444992610,1cyclictest0-21swapper/122:49:101
4443992610,15cyclictest0-21swapper/023:21:520
444399260,2cyclictest0-21swapper/022:58:070
4444992525,0cyclictest0-21swapper/119:28:571
4444992522,2cyclictest0-21swapper/100:20:491
444499250,1cyclictest0-21swapper/121:39:231
4443992518,6cyclictest23448-21apache221:20:380
4443992510,8cyclictest0-21swapper/019:37:020
4444992417,7cyclictest32070-21kworker/1:222:55:171
4444992410,2cyclictest0-21swapper/119:16:561
4444992410,2cyclictest0-21swapper/100:09:371
4444992410,2cyclictest0-21swapper/100:04:421
4444992410,10cyclictest0-21swapper/123:32:201
444499240,2cyclictest0-21swapper/121:35:501
4443992424,0cyclictest0-21swapper/020:27:200
4443992424,0cyclictest0-21swapper/019:57:080
4443992419,3cyclictest81ktimersoftd/022:47:380
108992240,0sleep00-21swapper/023:07:080
4444992323,0cyclictest0-21swapper/120:57:061
4444992321,1cyclictest231ktimersoftd/120:17:131
4444992316,5cyclictest23469-21apache222:21:271
444499231,3cyclictest0-21swapper/121:24:101
4444992310,6cyclictest0-21swapper/122:46:211
444399231,21cyclictest0-21swapper/021:29:200
4443992310,10cyclictest0-21swapper/023:33:580
444399230,17cyclictest0-21swapper/021:13:500
4444992220,1cyclictest231ktimersoftd/121:27:131
4444992220,1cyclictest0-21swapper/122:57:001
4444992218,3cyclictest23448-21apache219:59:151
4444992217,1cyclictest0-21swapper/122:41:361
4444992214,6cyclictest23469-21apache223:43:491
4444992214,6cyclictest23448-21apache223:30:221
4444992210,3cyclictest0-21swapper/122:26:451
4444992210,2cyclictest0-21swapper/121:11:301
4444992210,0cyclictest0-21swapper/123:48:121
4443992212,5cyclictest0-21swapper/023:38:090
4443992210,5cyclictest0-21swapper/022:12:150
4443992210,4cyclictest0-21swapper/022:06:570
444499214,9cyclictest18032-21diskmemload00:22:101
4444992119,0cyclictest0-21swapper/120:03:251
4444992116,4cyclictest795-21sendmail-mta23:58:091
4444992110,7cyclictest0-21swapper/119:42:201
4444992110,5cyclictest0-21swapper/122:27:051
4444992110,5cyclictest0-21swapper/120:07:061
4444992110,4cyclictest0-21swapper/121:49:551
444399216,7cyclictest22986-21unixbench_singl19:52:120
444399215,8cyclictest636-21nscd22:43:290
4443992119,1cyclictest23448-21apache223:29:210
4443992115,5cyclictest7469-21ssh22:17:490
4443992114,4cyclictest23469-21apache223:05:500
4443992110,7cyclictest0-21swapper/000:02:110
4443992110,6cyclictest0-21swapper/000:08:550
4443992110,5cyclictest0-21swapper/022:34:490
4443992110,1cyclictest0-21swapper/021:54:350
444499205,5cyclictest0-21swapper/119:12:061
444499202,13cyclictest0-21swapper/122:12:151
4444992012,7cyclictest23469-21apache222:34:381
4444992011,3cyclictest0-21swapper/123:37:051
4444992010,6cyclictest0-21swapper/119:22:111
444399204,7cyclictest18032-21diskmemload22:22:110
4443992019,1cyclictest0-21swapper/022:56:520
444399201,5cyclictest0-21swapper/000:28:090
4443992015,3cyclictest4441-21cyclictest00:00:070
4443992012,2cyclictest97950irq/108-eth1-tx00:21:580
4443992010,8cyclictest0-21swapper/022:02:040
4443992010,5cyclictest0-21swapper/021:51:400
4443992010,3cyclictest0-21swapper/021:57:090
444399200,9cyclictest29881-21ls00:17:150
444399200,9cyclictest0-21swapper/019:17:120
444399200,19cyclictest0-21swapper/023:22:270
4444991913,5cyclictest23448-21apache223:52:431
4444991910,6cyclictest0-21swapper/123:23:411
4444991910,5cyclictest0-21swapper/123:17:091
4444991910,5cyclictest0-21swapper/123:11:391
4444991910,5cyclictest0-21swapper/100:15:191
4444991910,3cyclictest0-21swapper/120:47:051
4444991910,2cyclictest0-21swapper/120:52:041
4444991910,2cyclictest0-21swapper/119:32:021
4444991910,1cyclictest0-21swapper/123:14:481
444499190,1cyclictest0-21swapper/121:19:151
4443991916,2cyclictest0-21swapper/020:17:090
4443991913,2cyclictest0-21swapper/021:23:080
4443991910,5cyclictest0-21swapper/022:27:270
4443991910,5cyclictest0-21swapper/021:06:080
4443991910,5cyclictest0-21swapper/019:42:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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