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2026-04-15 - 22:26
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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 highest latencies:
System rackcslot2.osadl.org (updated Wed Apr 15, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1797027047,17sleep10-21swapper/107:04:281
1873926754,8sleep00-21swapper/007:07:250
4212450,0sleep00-21swapper/012:08:350
19086993333,0cyclictest0-21swapper/011:16:510
19086993333,0cyclictest0-21swapper/009:21:450
19086993210,21cyclictest0-21swapper/012:37:150
19086993110,15cyclictest0-21swapper/008:34:440
1890723027,1sleep00-21swapper/007:09:090
19086992826,1cyclictest0-21swapper/010:33:210
1908699281,26cyclictest0-21swapper/012:24:440
19087992626,0cyclictest0-21swapper/111:14:141
19087992520,5cyclictest28969-21apache212:25:531
1908799251,23cyclictest0-21swapper/110:15:161
19086992510,13cyclictest0-21swapper/010:08:160
19086992510,13cyclictest0-21swapper/010:08:160
1908699250,4cyclictest0-21swapper/011:42:210
19087992424,0cyclictest0-21swapper/107:42:091
19087992417,6cyclictest16723-21ssh12:30:031
19087992410,4cyclictest0-21swapper/110:19:211
19086992422,1cyclictest100250irq/107-eth1-rx10:24:210
19086992420,4cyclictest0-21swapper/007:48:350
19086992415,9cyclictest0-21swapper/007:20:270
19086992414,7cyclictest0-21swapper/011:54:460
19086992410,6cyclictest0-21swapper/012:09:130
19086992410,10cyclictest0-21swapper/010:09:260
1908799235,9cyclictest0-21swapper/109:39:281
19087992311,6cyclictest28991-21apache209:59:481
19087992310,4cyclictest100250irq/107-eth1-rx09:25:281
1908799230,3cyclictest0-21swapper/110:53:591
1908799230,19cyclictest7156-21rm09:16:581
1908799230,18cyclictest0-21swapper/110:59:451
1908699235,9cyclictest0-21swapper/010:49:230
1908699234,11cyclictest0-21swapper/012:17:590
19086992319,2cyclictest81ktimersoftd/010:39:340
19086992310,7cyclictest0-21swapper/009:42:040
19086992310,4cyclictest0-21swapper/009:04:270
1908699230,1cyclictest0-21swapper/008:59:530
19087992213,4cyclictest636-21nscd10:09:261
19087992210,8cyclictest2505-21kworker/u4:009:22:441
19087992210,7cyclictest0-21swapper/109:29:231
19087992210,7cyclictest0-21swapper/107:54:321
1908799220,0cyclictest0-21swapper/111:43:421
19086992212,5cyclictest6271-21/usr/sbin/munin07:59:250
19086992210,11cyclictest0-21swapper/007:31:430
1908799217,4cyclictest558-21diskmemload11:50:581
1908799216,12cyclictest0-21swapper/108:59:201
1908799215,12cyclictest0-21swapper/112:14:271
19087992114,3cyclictest231ktimersoftd/110:37:571
19087992111,6cyclictest0-21swapper/112:03:281
19087992110,7cyclictest0-21swapper/109:12:451
1908699216,7cyclictest15749-21cstates10:14:200
1908699213,7cyclictest15697-21idleruntime-cro08:24:100
19086992118,3cyclictest0-21swapper/008:26:210
19086992116,5cyclictest0-21swapper/009:33:190
19086992115,2cyclictest558-21diskmemload10:56:530
19086992110,6cyclictest0-21swapper/010:19:550
19086992110,4cyclictest0-21swapper/010:59:490
1908799204,8cyclictest0-21swapper/108:39:301
1908799203,13cyclictest0-21swapper/108:04:251
19087992020,0cyclictest0-21swapper/111:44:101
19087992017,2cyclictest28969-21apache212:04:351
19087992014,5cyclictest9807-21ssh12:20:211
1908799201,2cyclictest0-21swapper/111:07:531
19087992010,4cyclictest558-21diskmemload10:25:091
1908799200,19cyclictest0-21swapper/109:57:581
19086992012,5cyclictest1641-21tr09:09:260
19086992012,2cyclictest21632-21kworker/u4:011:07:390
1908699201,10cyclictest0-21swapper/011:10:070
19086992010,9cyclictest0-21swapper/011:23:110
19086992010,6cyclictest0-21swapper/011:59:210
19086992010,5cyclictest0-21swapper/011:48:110
19086992010,5cyclictest0-21swapper/009:44:160
19086992010,5cyclictest0-21swapper/009:26:270
19086992010,1cyclictest0-21swapper/011:28:080
1908699200,12cyclictest0-21swapper/012:19:300
1908799197,6cyclictest0-21swapper/110:06:251
1908799197,6cyclictest0-21swapper/110:06:251
1908799196,12cyclictest0-21swapper/109:44:201
19087991913,6cyclictest100150irq/106-eth1-rx11:24:001
19087991910,4cyclictest0-21swapper/107:25:411
19087991910,3cyclictest0-21swapper/111:09:261
19087991910,3cyclictest0-21swapper/107:49:211
1908699195,8cyclictest0-21swapper/009:36:420
1908699195,6cyclictest13754-21cron08:19:100
1908699195,5cyclictest802-21apache209:49:300
1908699192,11cyclictest0-21swapper/009:54:220
19086991917,1cyclictest19084-21cyclictest09:14:440
19086991913,3cyclictest28991-21apache209:59:300
19086991910,7cyclictest0-21swapper/007:55:490
19086991910,3cyclictest0-21swapper/008:54:290
19086991910,2cyclictest0-21swapper/011:49:290
19086991910,1cyclictest0-21swapper/007:24:290
2892821810,0sleep10-21swapper/110:32:221
1908799182,9cyclictest0-21swapper/109:49:231
19087991817,1cyclictest28991-21apache211:26:101
19087991816,1cyclictest2363-21ls10:39:291
19087991812,4cyclictest1199-21runrttasks08:15:591
1908799181,11cyclictest0-21swapper/110:54:261
19087991810,5cyclictest0-21swapper/112:09:191
19087991810,5cyclictest0-21swapper/107:29:251
19087991810,4cyclictest0-21swapper/107:34:221
19087991810,3cyclictest28991-21apache208:19:301
19087991810,3cyclictest0-21swapper/109:04:211
19086991810,4cyclictest0-21swapper/010:36:520
19086991810,4cyclictest0-21swapper/008:44:200
19086991810,3cyclictest0-21swapper/008:29:240
19086991810,3cyclictest0-21swapper/008:14:030
19086991810,3cyclictest0-21swapper/007:49:200
1908799177,6cyclictest15853-21/usr/sbin/munin08:24:231
1908799175,7cyclictest0-21swapper/111:54:221
19087991715,1cyclictest231ktimersoftd/111:34:131
19087991714,2cyclictest19084-21cyclictest08:33:561
19087991713,2cyclictest7538-21sh10:48:001
19087991713,2cyclictest100150irq/106-eth1-rx08:09:301
19087991712,4cyclictest17619-1kworker/u5:009:35:501
1908799171,10cyclictest0-21swapper/108:49:211
19087991710,4cyclictest0-21swapper/107:14:211
19087991710,3cyclictest0-21swapper/112:34:281
1908799170,2cyclictest0-21swapper/107:19:281
1908699178,4cyclictest558-21diskmemload11:34:210
1908699174,5cyclictest21715-21/usr/sbin/munin07:14:250
1908699173,6cyclictest0-21swapper/008:04:210
19086991711,3cyclictest0-21swapper/012:29:220
19086991710,2cyclictest0-21swapper/010:44:140
19086991710,0cyclictest0-21swapper/008:40:470
1908699170,13cyclictest0-21swapper/011:29:180
2080321610,1sleep10-21swapper/107:13:091
1908799164,9cyclictest0-21swapper/108:54:301
1908799163,9cyclictest0-21swapper/111:29:201
1908799163,7cyclictest0-21swapper/108:39:101
19087991610,3cyclictest0-21swapper/108:01:281
19086991615,1cyclictest0-21swapper/007:41:510
1908699161,15cyclictest0-21swapper/008:52:110
19086991610,2cyclictest0-21swapper/007:37:250
19087991510,3cyclictest0-21swapper/108:44:211
186321510,1sleep10-21swapper/107:45:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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