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2026-03-29 - 17:17
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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 Sun Mar 29, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3269026855,8sleep10-21swapper/107:06:041
3258726856,8sleep00-21swapper/007:04:580
766993410,1cyclictest0-21swapper/011:46:290
767993230,1cyclictest0-21swapper/109:10:291
766993231,0cyclictest0-21swapper/011:11:480
767993010,17cyclictest0-21swapper/109:59:491
767992928,1cyclictest0-21swapper/111:56:211
767992910,12cyclictest0-21swapper/112:37:481
766992925,3cyclictest0-21swapper/010:03:420
767992810,12cyclictest0-21swapper/110:38:581
76699272,22cyclictest0-21swapper/011:05:060
767992610,7cyclictest0-21swapper/111:44:251
767992610,0cyclictest0-21swapper/111:20:401
766992626,0cyclictest0-21swapper/011:52:460
766992610,2cyclictest0-21swapper/007:19:360
76699260,1cyclictest0-21swapper/010:08:500
76799253,17cyclictest3759-21rm09:38:121
767992515,5cyclictest0-21swapper/109:24:281
76799250,10cyclictest0-21swapper/107:09:271
766992513,6cyclictest10917-21taskset10:33:450
766992510,9cyclictest0-21swapper/007:17:350
766992510,7cyclictest0-21swapper/007:49:280
766992510,5cyclictest0-21swapper/012:23:250
767992413,7cyclictest10675-21apache211:10:201
767992410,7cyclictest0-21swapper/110:39:301
767992410,0cyclictest0-21swapper/110:45:481
76799240,15cyclictest0-21swapper/109:55:411
766992415,5cyclictest100150irq/106-eth1-rx12:12:140
766992411,4cyclictest0-21swapper/011:16:050
76699240,19cyclictest4449-21/usr/sbin/munin09:39:340
767992310,9cyclictest0-21swapper/111:18:361
767992310,8cyclictest0-21swapper/111:00:531
767992310,12cyclictest0-21swapper/109:16:341
76699239,0cyclictest0-21swapper/010:52:300
766992316,6cyclictest0-21swapper/011:54:380
766992310,6cyclictest0-21swapper/009:34:260
766992310,2cyclictest0-21swapper/007:29:180
766992310,12cyclictest0-21swapper/009:21:360
766992310,11cyclictest0-21swapper/008:11:350
767992210,7cyclictest0-21swapper/107:34:341
766992216,3cyclictest81ktimersoftd/009:54:350
766992211,6cyclictest0-21swapper/010:24:300
76699221,13cyclictest0-21swapper/010:14:290
766992210,7cyclictest0-21swapper/010:21:220
766992210,7cyclictest0-21swapper/009:15:510
76799213,10cyclictest0-21swapper/108:24:291
767992117,2cyclictest28664-21ssh11:44:071
767992110,9cyclictest0-21swapper/110:24:491
767992110,5cyclictest0-21swapper/112:29:371
767992110,5cyclictest0-21swapper/109:29:561
767992110,5cyclictest0-21swapper/109:08:371
767992110,5cyclictest0-21swapper/108:04:301
767992110,4cyclictest0-21swapper/107:24:291
767992110,10cyclictest0-21swapper/107:31:221
766992117,2cyclictest802-21apache207:34:090
766992110,9cyclictest0-21swapper/011:21:240
766992110,1cyclictest0-21swapper/011:59:300
766992110,1cyclictest0-21swapper/010:14:090
766992110,0cyclictest0-21swapper/009:30:120
76699210,15cyclictest0-21swapper/011:34:350
713822110,0sleep10-21swapper/109:43:051
76799206,9cyclictest0-21swapper/110:49:291
76799206,9cyclictest0-21swapper/110:09:341
76799204,5cyclictest14757-21ssh12:09:301
76799202,13cyclictest0-21swapper/112:00:491
76799201,17cyclictest0-21swapper/108:34:301
767992010,5cyclictest0-21swapper/111:36:331
767992010,5cyclictest0-21swapper/107:19:371
767992010,3cyclictest0-21swapper/112:14:281
76699203,11cyclictest0-21swapper/007:54:280
76699202,7cyclictest0-21swapper/012:24:290
766992018,1cyclictest0-21swapper/008:33:270
766992016,1cyclictest29324-21cpuspeed_turbos10:59:290
766992012,3cyclictest14741-21diskmemload11:29:420
766992010,5cyclictest0-21swapper/008:49:340
766992010,4cyclictest0-21swapper/008:57:020
766992010,2cyclictest0-21swapper/009:09:320
766992010,1cyclictest0-21swapper/009:26:080
766992010,0cyclictest0-21swapper/010:47:020
76699200,1cyclictest0-21swapper/009:04:380
323142200,3sleep10-21swapper/108:29:331
76799193,8cyclictest25785-21if_eth212:24:331
767991914,4cyclictest10675-21apache210:15:481
767991911,4cyclictest25380-21ls08:09:371
76799191,11cyclictest0-21swapper/111:24:381
767991910,5cyclictest0-21swapper/109:46:501
767991910,4cyclictest0-21swapper/110:54:381
767991910,0cyclictest0-21swapper/108:21:321
76699199,3cyclictest0-21swapper/008:06:290
76699195,9cyclictest0-21swapper/007:59:390
76699194,10cyclictest0-21swapper/007:44:310
766991919,0cyclictest0-21swapper/011:40:280
766991917,1cyclictest636-21nscd12:07:550
766991917,1cyclictest11708-21apache_processe09:49:290
766991917,1cyclictest0-21swapper/008:35:070
766991914,4cyclictest10675-21apache207:43:570
766991911,5cyclictest31432-21kworker/0:207:37:260
766991910,4cyclictest0-21swapper/012:15:530
766991910,3cyclictest0-21swapper/008:14:320
766991910,0cyclictest0-21swapper/012:38:040
76699190,8cyclictest0-21swapper/010:34:310
76799183,11cyclictest0-21swapper/109:19:301
76799182,6cyclictest22710-21python12:19:361
767991817,1cyclictest14741-21diskmemload10:29:401
767991817,1cyclictest0-21swapper/111:30:571
767991811,3cyclictest231ktimersoftd/107:49:291
767991811,0cyclictest0-21swapper/109:49:341
767991810,7cyclictest0-21swapper/112:04:321
767991810,6cyclictest0-21swapper/110:04:301
767991810,5cyclictest0-21swapper/111:49:341
767991810,4cyclictest0-21swapper/111:05:281
767991810,1cyclictest0-21swapper/110:24:101
767991810,1cyclictest0-21swapper/108:54:371
76699189,3cyclictest24752sleep007:13:250
766991810,7cyclictest10693-21apache210:40:330
766991810,4cyclictest0-21swapper/008:39:280
766991810,3cyclictest0-21swapper/012:29:280
766991810,3cyclictest0-21swapper/010:54:340
1689421810,0sleep00-21swapper/011:26:360
76799174,8cyclictest0-21swapper/107:59:301
76799171,8cyclictest7415-21/usr/sbin/munin08:49:301
767991710,3cyclictest0-21swapper/107:39:311
767991710,2cyclictest0-21swapper/108:59:271
76699175,7cyclictest5263-21/usr/sbin/munin08:44:300
766991713,3cyclictest0-21swapper/009:02:010
76699170,5cyclictest0-21swapper/008:24:290
76799165,7cyclictest15146-21/usr/sbin/munin07:44:341
76799163,7cyclictest0-21swapper/108:14:291
76799162,9cyclictest0-21swapper/107:14:281
767991610,3cyclictest0-21swapper/108:45:121
767991610,3cyclictest0-21swapper/108:39:341
76699160,15cyclictest0-21swapper/009:44:290
767991510,4cyclictest0-21swapper/107:54:341
766991510,1cyclictest0-21swapper/008:20:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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