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2025-11-13 - 05:29
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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 Wed Nov 12, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2462227159,8sleep10-21swapper/107:04:041
298572700,1sleep129860-21switchtime11:47:091
2449626856,8sleep00-21swapper/007:02:460
25067993210,2cyclictest0-21swapper/009:38:160
25067993129,1cyclictest7-21ksoftirqd/008:36:490
2506899302,26cyclictest0-21swapper/109:22:301
25068992826,1cyclictest0-21swapper/111:02:131
25067992810,1cyclictest0-21swapper/011:04:230
25068992726,1cyclictest0-21swapper/111:43:041
2506899261,1cyclictest32252-21ntp_offset11:07:061
25067992624,1cyclictest0-21swapper/011:09:040
25067992610,2cyclictest0-21swapper/011:22:430
2506899252,22cyclictest0-21swapper/109:13:421
25068992519,5cyclictest2583-21apache210:36:511
25067992523,1cyclictest27634-21ls07:12:070
25067992520,2cyclictest8431-21/usr/sbin/munin07:47:110
2506799250,23cyclictest21612-21/usr/sbin/munin11:37:030
2506799250,1cyclictest0-21swapper/009:16:250
2506799250,14cyclictest0-21swapper/008:22:030
25068992424,0cyclictest24-21ksoftirqd/108:12:051
25068992424,0cyclictest24-21ksoftirqd/108:12:051
25068992417,5cyclictest2556-21apache210:46:121
25068992415,6cyclictest2556-21apache212:34:271
25068992415,5cyclictest2556-21apache210:07:351
25068992410,13cyclictest0-21swapper/112:05:411
25068992410,11cyclictest0-21swapper/110:01:331
2506899240,23cyclictest16718-21/usr/sbin/munin10:47:101
25067992424,0cyclictest0-21swapper/007:21:460
25067992421,2cyclictest636-21nscd10:26:530
25067992418,2cyclictest0-21swapper/009:31:520
25068992321,1cyclictest16585-21sh10:02:071
25068992316,4cyclictest2583-21apache210:35:161
25068992310,9cyclictest0-21swapper/111:22:001
25068992310,5cyclictest0-21swapper/110:52:071
25067992321,0cyclictest97850irq/107-eth1-rx10:43:350
25067992313,5cyclictest2583-21apache209:52:010
25067992310,10cyclictest0-21swapper/012:23:530
2506799230,2cyclictest6649-21diskmemload09:27:460
2506899225,12cyclictest0-21swapper/110:27:021
25068992221,0cyclictest24-21ksoftirqd/112:11:531
25068992210,9cyclictest0-21swapper/109:40:051
25068992210,6cyclictest0-21swapper/107:22:071
25068992210,5cyclictest0-21swapper/108:42:331
25068992210,5cyclictest0-21swapper/108:32:101
2506799224,14cyclictest0-21swapper/012:12:090
2506799222,11cyclictest0-21swapper/011:17:020
25067992221,0cyclictest0-21swapper/010:51:120
25067992216,4cyclictest28263-21missed_timers08:37:050
25067992210,7cyclictest0-21swapper/011:12:080
25067992210,4cyclictest0-21swapper/009:49:490
125222220,1sleep02506799cyclictest10:41:300
2506899213,2cyclictest91rcu_preempt09:52:031
25068992121,0cyclictest0-21swapper/109:09:011
25068992120,1cyclictest2583-21apache211:01:021
25068992119,1cyclictest24-21ksoftirqd/111:27:061
25068992110,8cyclictest0-21swapper/109:32:491
25068992110,5cyclictest0-21swapper/111:57:141
25068992110,3cyclictest0-21swapper/109:20:361
2506799213,10cyclictest0-21swapper/007:37:010
25067992120,0cyclictest16580-21ntp_states10:02:070
25067992118,0cyclictest0-21swapper/009:57:320
25067992117,1cyclictest81ktimersoftd/009:18:340
25067992110,4cyclictest0-21swapper/011:42:040
25067992110,3cyclictest0-21swapper/008:53:580
2506799210,13cyclictest0-21swapper/011:29:060
2324922110,2sleep10-21swapper/108:23:101
2506899204,7cyclictest0-21swapper/107:17:011
2506899203,10cyclictest0-21swapper/108:52:061
25068992019,0cyclictest24-21ksoftirqd/108:41:491
25068992019,0cyclictest0-21swapper/112:08:331
25068992018,1cyclictest24-21ksoftirqd/111:52:421
25068992013,6cyclictest2583-21apache209:05:251
25068992010,6cyclictest0-21swapper/112:26:011
25068992010,6cyclictest0-21swapper/111:18:381
25068992010,6cyclictest0-21swapper/107:47:021
25068992010,4cyclictest0-21swapper/111:40:211
25068992010,4cyclictest0-21swapper/108:57:031
25067992017,2cyclictest795-21sendmail-mta08:43:580
25067992017,0cyclictest97750irq/106-eth1-rx08:48:360
25067992012,5cyclictest97750irq/106-eth1-rx09:07:210
25067992010,4cyclictest0-21swapper/010:22:040
25067992010,3cyclictest0-21swapper/010:12:420
2506799200,7cyclictest0-21swapper/007:22:120
2506899198,7cyclictest6525-21apache_volume07:42:021
2506899196,9cyclictest0-21swapper/107:12:051
2506899194,14cyclictest0-21swapper/110:18:591
2506899194,10cyclictest0-21swapper/107:52:051
2506899193,4cyclictest5241-21seq11:14:471
25068991914,2cyclictest0-21swapper/109:44:121
25068991910,3cyclictest0-21swapper/112:30:311
2506899190,2cyclictest30917-21hddtemp_smartct10:22:041
2506799195,8cyclictest0-21swapper/011:52:050
2506799193,7cyclictest0-21swapper/012:32:020
25067991919,0cyclictest0-21swapper/010:32:130
25067991916,3cyclictest2556-21apache208:28:550
25067991913,4cyclictest817-21apache208:12:340
25067991913,4cyclictest817-21apache208:12:340
2506799191,10cyclictest6649-21diskmemload10:57:420
25067991910,5cyclictest0-21swapper/012:17:020
25067991910,5cyclictest0-21swapper/008:08:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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