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2026-03-26 - 23:52
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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 Thu Mar 26, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3267021270,1sleep01823799cyclictest09:50:050
1769827158,8sleep00-21swapper/007:05:320
1793726957,8sleep10-21swapper/107:08:021
300722330,0sleep00-21swapper/007:39:290
18237993114,16cyclictest0-21swapper/010:51:540
1823799300,1cyclictest0-21swapper/011:36:050
18237992910,18cyclictest0-21swapper/011:06:000
18238992828,0cyclictest0-21swapper/109:30:131
18237992827,0cyclictest7-21ksoftirqd/009:14:180
18238992727,0cyclictest0-21swapper/111:53:501
18238992726,0cyclictest0-21swapper/110:36:221
18238992717,7cyclictest24221-21ssh11:04:411
1823899270,14cyclictest0-21swapper/109:34:281
18238992610,3cyclictest0-21swapper/109:47:031
18237992610,6cyclictest0-21swapper/010:15:240
18238992522,2cyclictest0-21swapper/110:51:391
18238992521,3cyclictest28051-21apache209:29:131
18238992520,3cyclictest28069-21apache212:36:581
18237992524,0cyclictest7-21ksoftirqd/008:24:190
18237992510,10cyclictest0-21swapper/011:28:190
1823799250,1cyclictest0-21swapper/012:19:330
18238992424,0cyclictest0-21swapper/108:49:221
18238992414,6cyclictest0-21swapper/111:59:321
18238992410,14cyclictest0-21swapper/111:41:221
1823899240,0cyclictest32093-21diskmemload10:05:061
1823799249,10cyclictest0-21swapper/007:24:290
1823799245,18cyclictest0-21swapper/011:47:130
1823899237,9cyclictest0-21swapper/112:09:321
1823899231,2cyclictest18800-21ssh10:14:371
18238992310,6cyclictest0-21swapper/108:02:461
1823899230,3cyclictest0-21swapper/107:14:331
1823799235,11cyclictest0-21swapper/008:44:290
18237992323,0cyclictest0-21swapper/012:26:420
18237992323,0cyclictest0-21swapper/009:37:350
18237992315,3cyclictest0-21swapper/011:54:270
18237992310,7cyclictest0-21swapper/010:32:200
1823799230,22cyclictest0-21swapper/010:04:030
2251022210,0sleep10-21swapper/111:02:401
1823899225,14cyclictest0-21swapper/110:09:341
1823899223,13cyclictest0-21swapper/108:27:381
18238992210,7cyclictest0-21swapper/109:51:351
18237992219,2cyclictest81ktimersoftd/011:19:070
18237992217,4cyclictest0-21swapper/011:49:350
18237992216,4cyclictest81ktimersoftd/012:34:360
18237992210,8cyclictest0-21swapper/009:57:550
1823799220,21cyclictest0-21swapper/007:34:300
1823899212,9cyclictest19484-21/usr/sbin/munin07:09:371
18238992119,1cyclictest24-21ksoftirqd/107:49:181
18238992116,3cyclictest28069-21apache211:24:271
18238992111,5cyclictest0-21swapper/110:21:491
18238992110,6cyclictest0-21swapper/109:58:251
18238992110,6cyclictest0-21swapper/109:04:301
18238992110,5cyclictest0-21swapper/112:24:341
18238992110,5cyclictest0-21swapper/107:29:331
18238992110,1cyclictest0-21swapper/112:05:441
1823899210,11cyclictest0-21swapper/108:54:291
1823799213,10cyclictest0-21swapper/010:19:290
18237992114,5cyclictest0-21swapper/011:29:390
18237992110,5cyclictest0-21swapper/010:59:290
1823799210,2cyclictest0-21swapper/011:59:370
1823799210,1cyclictest0-21swapper/009:29:510
1823899206,3cyclictest32691-21grep09:09:311
1823899204,7cyclictest0-21swapper/111:47:551
18238992018,2cyclictest0-21swapper/110:43:471
18238992017,2cyclictest18235-21cyclictest09:19:391
18238992014,3cyclictest28069-21apache210:00:431
18238992013,4cyclictest28051-21apache210:28:501
18238992010,4cyclictest0-21swapper/108:09:301
1823799205,9cyclictest27518-21/usr/sbin/munin08:54:380
1823799204,14cyclictest0-21swapper/008:14:310
1823799203,7cyclictest5187-21awk07:59:180
1823799203,11cyclictest0-21swapper/011:19:310
18237992019,1cyclictest0-21swapper/010:10:390
18237992018,1cyclictest0-21swapper/012:12:330
18237992017,1cyclictest81ktimersoftd/011:41:320
18237992010,7cyclictest0-21swapper/009:21:320
1823899193,12cyclictest0-21swapper/108:44:341
18238991918,1cyclictest28051-21apache209:39:281
18238991911,6cyclictest100150irq/106-eth1-rx07:37:561
18238991911,3cyclictest0-21swapper/112:30:501
18238991911,0cyclictest19319-21irqstats08:34:341
18238991910,5cyclictest0-21swapper/111:32:031
18238991910,5cyclictest0-21swapper/110:55:241
18238991910,1cyclictest0-21swapper/108:39:311
1823799195,8cyclictest0-21swapper/009:14:370
18237991910,4cyclictest0-21swapper/010:45:130
18237991910,4cyclictest0-21swapper/009:04:320
18237991910,4cyclictest0-21swapper/008:24:310
18237991910,2cyclictest0-21swapper/007:19:290
1179321910,0sleep00-21swapper/012:17:310
2190221810,0sleep00-21swapper/007:19:090
1823899184,4cyclictest0-21swapper/111:14:391
1823899184,11cyclictest0-21swapper/107:19:301
18238991817,1cyclictest0-21swapper/112:18:591
18238991816,1cyclictest28069-21apache211:11:131
18238991811,1cyclictest0-21swapper/110:29:351
18238991810,5cyclictest0-21swapper/109:14:351
18238991810,3cyclictest0-21swapper/107:54:361
18238991810,2cyclictest0-21swapper/111:22:401
1823799185,6cyclictest0-21swapper/010:54:300
1823799183,7cyclictest0-21swapper/009:39:310
18237991810,4cyclictest0-21swapper/010:39:290
18237991810,4cyclictest0-21swapper/007:09:340
18237991810,3cyclictest0-21swapper/010:37:460
18237991810,0cyclictest0-21swapper/012:33:170
3179421710,1sleep10-21swapper/107:44:121
1823899174,2cyclictest1199-21runrttasks11:34:471
1823899172,9cyclictest0-21swapper/108:32:071
1823899171,9cyclictest0-21swapper/107:49:361
18238991714,2cyclictest28069-21apache212:19:521
18238991710,2cyclictest0-21swapper/111:54:381
18238991710,2cyclictest0-21swapper/110:46:501
1823899170,11cyclictest0-21swapper/107:24:351
1823799179,6cyclictest31982-21apache_accesses07:44:300
1823799175,7cyclictest100250irq/107-eth1-rx11:11:500
1823799171,7cyclictest0-21swapper/010:04:380
18237991717,0cyclictest81ktimersoftd/010:24:220
18237991713,3cyclictest0-21swapper/009:24:320
18237991710,6cyclictest0-21swapper/008:29:290
18237991710,4cyclictest81ktimersoftd/012:04:350
18237991710,4cyclictest0-21swapper/008:04:240
1283621710,0sleep10-21swapper/108:19:151
1823899162,4cyclictest0-21swapper/108:59:291
18238991610,4cyclictest0-21swapper/108:19:351
1823799163,8cyclictest0-21swapper/009:44:340
18237991615,0cyclictest7-21ksoftirqd/008:44:190
18237991614,1cyclictest0-21swapper/008:59:370
18237991610,3cyclictest0-21swapper/007:50:000
18237991610,2cyclictest24583-21cpuspeed_turbos08:49:300
18237991610,2cyclictest0-21swapper/008:34:310
18237991610,2cyclictest0-21swapper/008:09:330
18237991610,1cyclictest0-21swapper/007:32:500
18238991513,1cyclictest24-21ksoftirqd/108:09:191
18237991510,3cyclictest0-21swapper/007:59:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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