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2026-03-21 - 22:03
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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 Mar 21, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48042680,0sleep04802-21seq11:09:360
3145126754,8sleep10-21swapper/107:05:021
3161326654,8sleep00-21swapper/007:06:410
32047993410,0cyclictest0-21swapper/009:36:570
32048993010,2cyclictest0-21swapper/111:59:081
32048992927,1cyclictest0-21swapper/112:31:411
32048992826,1cyclictest0-21swapper/110:52:231
3204899270,15cyclictest0-21swapper/108:29:411
32047992718,3cyclictest32045-21cyclictest07:14:350
32047992624,1cyclictest25210-21ssh11:38:360
32048992518,2cyclictest0-21swapper/110:28:351
32048992515,7cyclictest9506-21apache211:45:391
32048992513,8cyclictest0-21swapper/109:13:261
32047992521,4cyclictest9506-21apache212:13:130
3204799250,19cyclictest24536-21rm12:21:330
3204899245,7cyclictest0-21swapper/108:34:381
32047992410,8cyclictest0-21swapper/009:25:100
32047992410,6cyclictest0-21swapper/009:19:310
32048992323,0cyclictest24-21ksoftirqd/111:24:321
32048992321,1cyclictest9477-21apache211:32:511
32048992321,1cyclictest0-21swapper/110:43:141
32048992320,2cyclictest9477-21apache208:24:331
32048992320,2cyclictest0-21swapper/110:22:521
32048992318,4cyclictest9506-21apache210:56:081
32048992312,7cyclictest100150irq/106-eth1-rx11:07:571
32048992310,7cyclictest0-21swapper/111:50:251
32048992310,7cyclictest0-21swapper/108:14:351
3204799233,4cyclictest0-21swapper/010:49:410
32047992322,0cyclictest0-21swapper/010:06:160
32047992317,4cyclictest9506-21apache211:44:320
32047992310,7cyclictest0-21swapper/011:54:360
3204899226,9cyclictest0-21swapper/112:24:321
3204899226,10cyclictest0-21swapper/110:34:371
3204899224,9cyclictest0-21swapper/107:14:421
3204899224,4cyclictest13406-21/usr/sbin/munin07:44:311
32048992212,7cyclictest9506-21apache212:08:261
32048992210,9cyclictest0-21swapper/111:16:101
3204799227,14cyclictest0-21swapper/009:41:340
32047992222,0cyclictest0-21swapper/008:34:360
32047992210,6cyclictest0-21swapper/008:49:340
32047992210,11cyclictest0-21swapper/010:00:380
3204799220,12cyclictest0-21swapper/010:59:320
3204899217,3cyclictest597-21/usr/sbin/munin09:34:381
3204899215,9cyclictest0-21swapper/107:24:381
32048992120,1cyclictest0-21swapper/108:54:171
32048992114,5cyclictest9477-21apache211:09:241
3204899211,17cyclictest0-21swapper/111:35:541
3204899211,12cyclictest0-21swapper/107:39:321
32048992110,7cyclictest0-21swapper/109:51:181
3204799218,5cyclictest0-21swapper/008:14:340
3204799214,8cyclictest9503-21apache209:44:320
32047992111,7cyclictest9477-21apache212:37:400
32047992110,5cyclictest0-21swapper/011:50:580
32047992110,5cyclictest0-21swapper/011:24:320
32047992110,4cyclictest0-21swapper/012:24:290
32047992110,1cyclictest0-21swapper/011:34:060
1302622110,0sleep00-21swapper/010:35:500
963622010,0sleep00-21swapper/011:16:070
3204899204,9cyclictest0-21swapper/108:09:341
3204899203,6cyclictest32178-21ssh11:03:291
3204899202,11cyclictest0-21swapper/109:54:351
32048992016,3cyclictest9477-21apache209:16:541
32048992016,3cyclictest0-21swapper/112:13:161
32048992014,5cyclictest9477-21apache209:27:121
32048992010,7cyclictest0-21swapper/112:01:281
32048992010,6cyclictest0-21swapper/109:43:281
32048992010,5cyclictest0-21swapper/107:09:341
32048992010,3cyclictest0-21swapper/111:39:301
32048992010,3cyclictest0-21swapper/110:45:371
3204799205,6cyclictest0-21swapper/007:24:320
32047992010,2cyclictest0-21swapper/012:14:370
2336922010,0sleep10-21swapper/109:21:151
1403422010,0sleep00-21swapper/011:22:440
3204899198,7cyclictest9477-21apache209:30:481
3204899195,9cyclictest231ktimersoftd/110:14:401
3204899194,8cyclictest0-21swapper/112:34:361
3204899194,10cyclictest0-21swapper/112:14:301
3204899192,7cyclictest21743-21apache_accesses10:04:321
32048991919,0cyclictest24-21ksoftirqd/109:44:341
32048991910,6cyclictest0-21swapper/107:29:321
32048991910,3cyclictest0-21swapper/112:24:011
32048991910,1cyclictest0-21swapper/108:39:381
3204799192,4cyclictest0-21swapper/010:15:070
32047991916,1cyclictest32045-21cyclictest07:19:320
32047991914,1cyclictest27555-21diskmemload11:40:360
32047991911,6cyclictest100150irq/106-eth1-rx08:13:470
32047991911,5cyclictest0-21swapper/009:15:050
32047991910,9cyclictest0-21swapper/009:55:340
32047991910,5cyclictest100150irq/106-eth1-rx07:56:140
32047991910,4cyclictest0-21swapper/010:58:000
32047991910,3cyclictest0-21swapper/010:28:500
32047991910,0cyclictest0-21swapper/008:24:210
32047991910,0cyclictest0-21swapper/007:59:370
3204899185,9cyclictest0-21swapper/107:34:391
3204899181,7cyclictest13517-21diskmemload10:09:331
32048991813,2cyclictest0-21swapper/109:04:401
3204899181,11cyclictest0-21swapper/107:19:381
32048991810,4cyclictest0-21swapper/108:19:321
3204899180,6cyclictest0-21swapper/110:29:331
3204899180,13cyclictest0-21swapper/111:20:121
3204799185,9cyclictest0-21swapper/009:09:400
3204799184,6cyclictest0-21swapper/010:44:390
3204799183,8cyclictest0-21swapper/008:59:310
3204799183,10cyclictest0-21swapper/008:04:320
3204799182,10cyclictest0-21swapper/009:29:320
32047991812,5cyclictest0-21swapper/007:34:380
32047991811,5cyclictest9506-21apache208:29:260
32047991810,3cyclictest0-21swapper/010:31:340
32047991810,2cyclictest0-21swapper/007:29:340
32047991810,0cyclictest0-21swapper/010:39:410
3204799180,5cyclictest13517-21diskmemload09:49:360
326672170,0sleep00-21swapper/010:19:280
3204899175,7cyclictest9710-21awk08:59:211
3204899174,8cyclictest0-21swapper/107:54:341
3204899172,8cyclictest0-21swapper/108:04:321
32048991712,3cyclictest9506-21apache207:53:131
32048991710,5cyclictest0-21swapper/109:59:371
32048991710,5cyclictest0-21swapper/108:44:401
3204799176,5cyclictest0-21swapper/007:09:350
3204799173,9cyclictest0-21swapper/008:44:330
3204799172,9cyclictest0-21swapper/012:09:190
32047991710,4cyclictest0-21swapper/011:09:150
32047991710,3cyclictest0-21swapper/011:59:330
32047991710,2cyclictest0-21swapper/007:44:310
3204799170,16cyclictest29582-21apache_accesses12:29:330
3204799165,8cyclictest0-21swapper/010:09:400
3204799163,10cyclictest0-21swapper/008:24:420
3204899152,7cyclictest0-21swapper/107:59:381
32048991510,1cyclictest0-21swapper/108:59:311
3204799154,8cyclictest0-21swapper/008:54:310
32047991510,3cyclictest0-21swapper/008:43:230
32047991510,2cyclictest0-21swapper/007:39:320
32047991510,1cyclictest0-21swapper/009:04:370
32047991410,2cyclictest0-21swapper/007:49:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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