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2026-06-03 - 20:25
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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 Jun 03, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2756127252,8sleep00-21swapper/007:06:310
2733826754,8sleep10-21swapper/107:04:111
27960993333,0cyclictest0-21swapper/112:20:161
27960993030,0cyclictest0-21swapper/110:42:421
27960993030,0cyclictest0-21swapper/107:55:391
27960992828,0cyclictest0-21swapper/109:09:031
27959992820,7cyclictest7203-21kworker/u4:209:23:500
27960992710,11cyclictest0-21swapper/110:26:271
2796099260,3cyclictest0-21swapper/109:19:371
27959992610,7cyclictest0-21swapper/010:44:070
27960992510,1cyclictest0-21swapper/111:55:321
2796099250,1cyclictest0-21swapper/112:03:541
2795999251,14cyclictest0-21swapper/012:38:280
27959992510,6cyclictest0-21swapper/011:33:590
2795999250,1cyclictest16186-21ssh09:16:130
27960992424,0cyclictest0-21swapper/111:17:551
27960992410,4cyclictest0-21swapper/109:04:041
2796099240,3cyclictest0-21swapper/110:30:231
27959992410,7cyclictest0-21swapper/012:09:040
27959992410,7cyclictest0-21swapper/011:08:590
27960992322,1cyclictest5476-21apache210:05:011
27960992321,1cyclictest29050-21kworker/u4:010:14:441
2796099231,1cyclictest0-21swapper/112:01:571
27960992310,0cyclictest0-21swapper/110:35:461
27959992312,8cyclictest28337-21sshd08:33:150
2795999231,11cyclictest9430-21memory11:59:020
2796099224,9cyclictest0-21swapper/108:53:581
27960992210,9cyclictest0-21swapper/110:13:111
27960992210,4cyclictest0-21swapper/108:44:031
2796099220,9cyclictest0-21swapper/109:54:031
2796099220,16cyclictest0-21swapper/110:20:071
2795999222,6cyclictest0-21swapper/012:22:120
2795999222,12cyclictest0-21swapper/008:49:070
27959992220,1cyclictest636-21nscd11:39:270
27959992214,4cyclictest5516-21kworker/0:210:41:390
2795999220,5cyclictest0-21swapper/011:32:500
2795999220,22cyclictest0-21swapper/007:32:180
629122110,0sleep10-21swapper/109:45:181
49632210,0sleep00-21swapper/011:53:470
2796099218,7cyclictest17054-21apache_volume08:03:581
2796099216,8cyclictest0-21swapper/111:39:311
2796099216,10cyclictest0-21swapper/107:14:041
2796099215,9cyclictest9493-21diskmemload10:53:251
2796099215,10cyclictest0-21swapper/108:39:081
27960992121,0cyclictest0-21swapper/112:33:191
27960992119,1cyclictest5476-21apache210:44:041
27960992118,2cyclictest0-21swapper/109:49:191
27960992110,6cyclictest0-21swapper/108:29:001
27960992110,5cyclictest0-21swapper/111:04:021
27960992110,4cyclictest0-21swapper/109:58:581
2796099210,3cyclictest100150irq/106-eth1-rx12:17:581
2795999212,3cyclictest10614-21kworker/u4:110:02:310
27959992121,0cyclictest0-21swapper/010:23:320
27959992121,0cyclictest0-21swapper/010:18:470
27959992116,3cyclictest5458-21apache209:23:010
27959992114,4cyclictest5476-21apache212:04:020
27959992110,6cyclictest0-21swapper/009:03:580
27959992110,5cyclictest0-21swapper/011:14:220
27959992110,3cyclictest0-21swapper/012:13:490
27959992110,1cyclictest0-21swapper/010:49:030
27959992110,1cyclictest0-21swapper/010:30:460
1679822110,0sleep10-21swapper/111:25:401
2796099208,6cyclictest976-21cron11:48:471
2796099205,12cyclictest0-21swapper/112:33:581
27960992020,0cyclictest0-21swapper/107:45:161
2796099201,7cyclictest167-21systemd-journal11:33:461
27960992010,3cyclictest0-21swapper/111:18:501
2796099200,19cyclictest0-21swapper/108:15:591
2795999207,7cyclictest0-21swapper/008:59:060
2795999205,8cyclictest9493-21diskmemload09:54:020
2795999205,8cyclictest0-21swapper/009:31:160
2795999204,8cyclictest0-21swapper/009:49:010
27959992010,5cyclictest0-21swapper/008:33:590
27959992010,4cyclictest0-21swapper/010:13:400
27959992010,3cyclictest0-21swapper/010:58:580
27959992010,3cyclictest0-21swapper/007:33:470
2796099196,5cyclictest1417-21ssh11:48:581
2796099193,7cyclictest6112-21tune2fs08:59:001
2796099192,9cyclictest0-21swapper/111:34:031
27960991919,0cyclictest0-21swapper/109:31:121
27960991915,3cyclictest30337-21munin-node07:29:431
27960991914,0cyclictest231ktimersoftd/110:53:581
27960991913,5cyclictest5458-21apache208:08:591
2796099191,15cyclictest23405-21rm09:25:321
27960991910,3cyclictest0-21swapper/109:39:021
27960991910,1cyclictest0-21swapper/109:33:481
2796099190,9cyclictest636-21nscd12:11:011
2795999195,8cyclictest31766-21users08:39:080
2795999195,8cyclictest0-21swapper/011:18:570
2795999195,11cyclictest0-21swapper/008:03:580
2795999194,5cyclictest0-21swapper/008:13:590
27959991912,2cyclictest0-21swapper/011:56:100
238721910,2sleep00-21swapper/009:40:240
495321810,0sleep10-21swapper/111:09:221
43921810,0sleep00-21swapper/011:04:040
2796099189,2cyclictest1199-21runrttasks12:25:291
27960991812,3cyclictest5458-21apache208:51:141
27960991811,3cyclictest100150irq/106-eth1-rx08:19:391
27960991810,8cyclictest0-21swapper/109:14:121
27960991810,3cyclictest0-21swapper/110:59:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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