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2026-04-30 - 19:20
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Thu Apr 30, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2859727554,9sleep10-21swapper/107:04:081
2860226451,8sleep00-21swapper/007:04:110
217692630,1sleep00-21swapper/009:24:160
29248993030,0cyclictest0-21swapper/112:30:361
29248993030,0cyclictest0-21swapper/107:10:141
29248992927,1cyclictest24-21ksoftirqd/109:56:161
29248992910,6cyclictest0-21swapper/112:34:131
29247992810,2cyclictest0-21swapper/010:22:290
29248992710,1cyclictest0-21swapper/112:00:501
29247992721,5cyclictest6694-21apache210:18:020
29247992710,0cyclictest0-21swapper/012:36:540
29248992624,1cyclictest24-21ksoftirqd/108:59:151
29248992619,3cyclictest24-21ksoftirqd/111:37:401
29248992612,8cyclictest10839-21kworker/u4:211:01:151
2924899256,18cyclictest0-21swapper/111:26:361
29248992524,1cyclictest0-21swapper/110:08:291
29248992523,1cyclictest24-21ksoftirqd/112:17:101
29247992518,4cyclictest81ktimersoftd/007:49:190
29247992511,7cyclictest100250irq/107-eth1-rx09:41:110
2924799250,19cyclictest0-21swapper/012:12:530
2924899245,15cyclictest0-21swapper/109:26:431
29248992423,0cyclictest24-21ksoftirqd/108:14:151
29248992422,1cyclictest24-21ksoftirqd/110:19:191
29248992422,1cyclictest24-21ksoftirqd/109:44:161
2924899242,1cyclictest91rcu_preempt09:49:231
29248992419,3cyclictest6706-21apache210:47:431
29248992411,6cyclictest11550-21/usr/sbin/munin07:44:211
29248992411,3cyclictest0-21swapper/111:18:591
2924799246,16cyclictest0-21swapper/011:02:560
29247992413,5cyclictest29245-21cyclictest09:44:140
2924799240,2cyclictest0-21swapper/011:39:210
2924899239,12cyclictest0-21swapper/111:19:131
2924899236,10cyclictest0-21swapper/111:49:151
2924899235,3cyclictest91rcu_preempt11:39:151
2924899234,4cyclictest91rcu_preempt12:24:141
2924899234,4cyclictest91rcu_preempt10:30:221
29248992322,1cyclictest24-21ksoftirqd/110:16:161
29248992321,1cyclictest24-21ksoftirqd/107:24:141
29248992310,13cyclictest0-21swapper/110:39:451
2924799233,14cyclictest0-21swapper/007:34:160
29247992323,0cyclictest0-21swapper/007:41:370
29247992318,4cyclictest5251-21munin-node07:59:550
29247992317,4cyclictest6694-21apache210:07:430
2924799231,21cyclictest9523-21diskmemload11:58:400
29247992310,5cyclictest0-21swapper/009:33:510
2924799230,13cyclictest0-21swapper/012:17:050
2924899226,11cyclictest0-21swapper/109:34:151
2924899225,13cyclictest0-21swapper/108:29:141
29248992222,0cyclictest24-21ksoftirqd/109:33:101
29248992221,0cyclictest24-21ksoftirqd/108:34:161
2924899221,9cyclictest6683-21apache210:49:121
2924899221,5cyclictest91rcu_preempt12:23:391
29248992215,6cyclictest24-21ksoftirqd/109:04:191
29247992215,4cyclictest6706-21apache211:16:420
29247992213,3cyclictest11506-21/usr/sbin/munin10:34:180
29247992212,7cyclictest81ktimersoftd/009:04:440
29247992212,6cyclictest16668-21kworker/u4:209:19:490
29247992210,2cyclictest0-21swapper/011:29:220
2924799220,20cyclictest0-21swapper/008:59:440
2924799220,0cyclictest0-21swapper/011:49:480
2924899214,9cyclictest0-21swapper/108:19:151
29248992119,1cyclictest24-21ksoftirqd/109:22:031
29248992116,3cyclictest24-21ksoftirqd/109:12:491
2924899211,2cyclictest91rcu_preempt10:58:381
29248992111,7cyclictest0-21swapper/110:34:191
29248992110,7cyclictest0-21swapper/112:08:191
29248992110,3cyclictest0-21swapper/110:29:001
2924899210,2cyclictest548-21rm09:39:071
29247992121,0cyclictest29245-21cyclictest07:30:270
29247992119,0cyclictest0-21swapper/010:30:100
29247992117,2cyclictest12179-21/usr/sbin/munin11:59:160
29247992111,6cyclictest100350irq/108-eth1-tx08:24:140
29247992110,4cyclictest0-21swapper/011:09:230
2924799210,1cyclictest20056-21ssh11:27:080
2924899203,8cyclictest8535-21ssh11:12:221
29248992018,1cyclictest24-21ksoftirqd/111:04:151
29248992018,1cyclictest24-21ksoftirqd/108:13:001
2924899200,1cyclictest91rcu_preempt11:33:321
2924799207,9cyclictest14572-21apache207:14:130
2924799205,9cyclictest23864-1kworker/u5:211:34:160
2924799203,9cyclictest0-21swapper/009:56:100
29247992012,3cyclictest0-21swapper/010:49:160
29247992011,6cyclictest100350irq/108-eth1-tx10:03:130
29247992010,6cyclictest0-21swapper/010:56:480
29247992010,5cyclictest0-21swapper/008:44:160
29247992010,4cyclictest0-21swapper/012:32:390
29247992010,4cyclictest0-21swapper/009:17:410
29247992010,1cyclictest0-21swapper/008:14:210
2924899194,11cyclictest0-21swapper/107:34:131
2924899191,6cyclictest0-21swapper/107:29:151
29248991912,4cyclictest29245-21cyclictest07:56:331
29248991910,7cyclictest0-21swapper/107:14:131
29248991910,6cyclictest0-21swapper/111:48:001
29248991910,5cyclictest0-21swapper/112:09:241
29248991910,2cyclictest0-21swapper/111:55:351
2924799195,8cyclictest0-21swapper/007:54:210
2924799194,7cyclictest0-21swapper/008:54:140
2924799193,9cyclictest0-21swapper/008:39:120
29247991910,7cyclictest0-21swapper/008:34:150
29247991910,6cyclictest0-21swapper/012:07:000
29247991910,3cyclictest0-21swapper/012:22:300
29247991910,3cyclictest0-21swapper/009:34:190
2924799190,0cyclictest0-21swapper/007:48:000
2924899189,2cyclictest24-21ksoftirqd/110:11:041
2924899185,8cyclictest0-21swapper/107:59:151
29248991816,1cyclictest24-21ksoftirqd/110:01:261
2924899181,4cyclictest91rcu_preempt07:39:181
29248991811,1cyclictest231ktimersoftd/108:51:011
29248991810,4cyclictest0-21swapper/107:24:031
2924799187,9cyclictest21939-21cron08:14:030
2924799183,6cyclictest3509-21ssh11:04:230
2924799183,6cyclictest16064-21/usr/sbin/munin10:39:210
2924799183,6cyclictest0-21swapper/010:24:510
29247991812,4cyclictest744-21snmpd08:53:190
29247991810,3cyclictest0-21swapper/011:44:190
29247991810,3cyclictest0-21swapper/009:49:200
29247991810,2cyclictest0-21swapper/010:46:030
29247991810,2cyclictest0-21swapper/007:24:200
2472821810,0sleep00-21swapper/010:09:060
2924899179,5cyclictest91rcu_preempt07:49:201
2924899174,4cyclictest0-21swapper/108:24:201
2924899173,12cyclictest0-21swapper/108:04:141
2924899173,11cyclictest0-21swapper/108:44:211
29248991710,2cyclictest0-21swapper/108:54:121
29248991710,1cyclictest0-21swapper/109:15:231
2924799179,4cyclictest0-21swapper/008:23:040
2924799175,6cyclictest0-21swapper/008:04:170
29247991710,4cyclictest0-21swapper/009:09:160
2924799170,17cyclictest0-21swapper/007:22:080
2924799170,15cyclictest0-21swapper/011:21:390
2924899166,8cyclictest32422-21memory08:39:181
2924799163,8cyclictest0-21swapper/008:29:220
29247991610,3cyclictest0-21swapper/012:26:520
29247991310,2cyclictest0-21swapper/007:09:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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