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2025-11-08 - 16:58
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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 Sat Nov 08, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2822927149,17sleep10-21swapper/107:06:061
320002690,0sleep10-21swapper/112:13:571
2794726855,8sleep00-21swapper/007:03:100
94102670,1sleep1231ktimersoftd/109:44:031
28482993736,1cyclictest0-21swapper/108:23:371
28482993310,14cyclictest5942-21apache210:30:061
28481993310,5cyclictest0-21swapper/009:44:190
28482993110,2cyclictest0-21swapper/112:28:501
28481993131,0cyclictest0-21swapper/011:18:170
28481993010,20cyclictest0-21swapper/012:18:550
2848299290,23cyclictest0-21swapper/111:57:091
28481992910,18cyclictest0-21swapper/007:30:340
2848199290,0cyclictest0-21swapper/008:57:130
28482992828,0cyclictest0-21swapper/110:23:091
28482992825,2cyclictest231ktimersoftd/111:37:051
28482992810,7cyclictest0-21swapper/108:21:511
28482992711,1cyclictest98050irq/109-eth1-tx10:57:461
28482992710,9cyclictest0-21swapper/111:07:171
28482992710,17cyclictest0-21swapper/112:35:311
28481992724,2cyclictest4183-21ssh09:37:130
28481992710,3cyclictest0-21swapper/009:17:510
28481992710,13cyclictest0-21swapper/009:30:000
28481992617,5cyclictest11441-21ssh11:06:150
28481992610,5cyclictest0-21swapper/010:28:010
28482992520,4cyclictest5942-21apache210:56:071
28482992510,3cyclictest0-21swapper/111:54:341
28482992510,3cyclictest0-21swapper/109:02:031
2848199253,1cyclictest91rcu_preempt07:31:520
28481992522,3cyclictest7-21ksoftirqd/008:51:510
28481992511,7cyclictest22943-21kworker/0:010:22:100
28481992510,2cyclictest0-21swapper/009:14:380
28482992418,5cyclictest5942-21apache209:19:331
2848299241,2cyclictest30810-21runrttasks10:49:561
28482992410,9cyclictest0-21swapper/109:11:341
28482992410,4cyclictest0-21swapper/111:14:001
28481992424,0cyclictest0-21swapper/007:40:290
28481992420,3cyclictest5942-21apache211:24:560
2848199241,2cyclictest0-21swapper/010:19:100
28482992323,0cyclictest0-21swapper/111:01:521
28482992311,6cyclictest0-21swapper/111:30:191
28482992310,7cyclictest0-21swapper/108:12:041
28482992310,6cyclictest0-21swapper/107:17:041
28482992310,4cyclictest0-21swapper/107:12:011
2848199232,10cyclictest0-21swapper/010:02:020
28481992314,3cyclictest22392-21fschecks_time12:02:050
28481992314,2cyclictest28853-21cron08:31:510
28481992310,8cyclictest0-21swapper/009:49:060
28481992310,7cyclictest0-21swapper/009:36:170
28481992310,5cyclictest0-21swapper/012:12:060
28481992310,5cyclictest0-21swapper/012:11:160
28481992310,5cyclictest0-21swapper/007:52:040
28481992310,0cyclictest0-21swapper/011:49:210
2848299224,10cyclictest0-21swapper/108:27:041
28482992219,3cyclictest5942-21apache210:10:251
28482992217,4cyclictest5915-21apache211:25:591
2848299221,5cyclictest0-21swapper/109:57:311
28482992215,6cyclictest16731-21ssh09:52:261
28482992210,5cyclictest0-21swapper/110:02:051
28482992210,5cyclictest0-21swapper/109:47:141
28482992210,4cyclictest0-21swapper/107:22:051
28481992221,1cyclictest0-21swapper/008:15:070
28481992219,2cyclictest0-21swapper/011:41:580
28481992219,1cyclictest0-21swapper/009:08:450
28481992210,3cyclictest0-21swapper/011:14:340
2848199220,9cyclictest0-21swapper/009:57:080
2848199220,3cyclictest0-21swapper/011:38:170
285922110,0sleep10-21swapper/112:18:051
2848299217,5cyclictest23987-21cpuspeed_turbos10:42:041
2848299213,11cyclictest0-21swapper/110:32:101
2848299212,10cyclictest0-21swapper/108:02:101
28482992110,7cyclictest0-21swapper/111:48:451
28482992110,6cyclictest0-21swapper/109:16:091
28482992110,3cyclictest0-21swapper/107:42:041
28482992110,2cyclictest0-21swapper/111:36:501
2848199214,9cyclictest12598-21/usr/sbin/munin12:32:040
28481992120,0cyclictest7-21ksoftirqd/008:01:520
28481992120,0cyclictest1035-21ssh11:33:040
28481992118,3cyclictest5942-21apache210:06:580
2848199211,18cyclictest0-21swapper/009:56:130
2848299204,11cyclictest23570-21snmpd12:02:041
2848299202,9cyclictest0-21swapper/107:57:061
28482992014,2cyclictest817-21apache207:49:011
28482992013,6cyclictest5915-21apache212:22:031
28482992013,3cyclictest17823-21kworker/u4:109:26:071
2848299201,15cyclictest0-21swapper/109:29:581
28482992010,6cyclictest0-21swapper/110:16:181
28482992010,3cyclictest0-21swapper/108:46:531
2848199203,6cyclictest0-21swapper/007:12:060
2848199201,6cyclictest0-21swapper/010:32:040
28481992010,4cyclictest0-21swapper/010:46:520
28481992010,3cyclictest0-21swapper/012:23:160
28481992010,3cyclictest0-21swapper/009:26:160
28481992010,0cyclictest0-21swapper/011:10:060
2848199200,0cyclictest0-21swapper/011:26:560
2848299194,5cyclictest0-21swapper/109:34:451
28482991913,4cyclictest2239-21latency_hist08:46:511
28482991910,5cyclictest0-21swapper/110:37:081
28482991910,4cyclictest0-21swapper/107:07:071
28482991910,3cyclictest0-21swapper/108:57:061
2848199193,11cyclictest9967-21diskmemload11:56:470
2848199192,5cyclictest20723-21apache207:22:050
2848199191,8cyclictest0-21swapper/008:07:110
28481991916,2cyclictest5915-21apache212:27:440
28481991914,3cyclictest7-21ksoftirqd/008:03:510
28481991913,3cyclictest7-21ksoftirqd/008:42:050
2848199190,9cyclictest0-21swapper/008:17:050
28482991813,3cyclictest817-21apache208:34:021
28482991810,7cyclictest15347-21kworker/1:007:29:221
28482991810,5cyclictest0-21swapper/107:52:141
28482991810,4cyclictest0-21swapper/112:06:571
28482991810,3cyclictest0-21swapper/109:37:561
28482991810,2cyclictest0-21swapper/111:46:031
2848199186,5cyclictest0-21swapper/009:02:050
28481991817,0cyclictest7-21ksoftirqd/008:56:510
28481991811,3cyclictest0-21swapper/007:20:170
28481991810,8cyclictest0-21swapper/010:46:040
28481991810,6cyclictest97950irq/108-eth1-tx10:14:030
28481991810,6cyclictest0-21swapper/011:57:050
28481991810,2cyclictest0-21swapper/010:36:530
1116121810,1sleep00-21swapper/007:42:250
28482991711,5cyclictest5869-21kworker/1:207:36:581
28482991711,5cyclictest5869-21kworker/1:207:34:301
2848299170,1cyclictest0-21swapper/110:20:461
2848199175,4cyclictest29232-21/usr/sbin/munin07:07:080
28481991715,1cyclictest7-21ksoftirqd/010:52:060
28481991713,2cyclictest28479-21cyclictest07:47:170
28481991711,3cyclictest0-21swapper/010:57:060
28481991710,3cyclictest0-21swapper/008:22:070
28482991611,5cyclictest3502-21kworker/1:011:16:541
2848299161,11cyclictest0-21swapper/108:07:121
2848299151,7cyclictest0-21swapper/108:37:031
28482991512,1cyclictest5915-21apache208:53:591
2848199153,4cyclictest0-21swapper/008:32:130
28481991414,0cyclictest7-21ksoftirqd/008:39:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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