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2026-04-13 - 20:56
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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 Mon Apr 13, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3205327732,40sleep00-21swapper/007:04:440
3235927057,9sleep10-21swapper/107:07:561
259652670,0sleep025963-21seq09:24:270
229062650,0sleep022904-21seq10:04:290
32661993510,3cyclictest0-21swapper/109:19:241
3266199312,6cyclictest4056-21sed08:39:301
32661993110,6cyclictest0-21swapper/110:24:221
32661993110,4cyclictest0-21swapper/109:49:221
32660993110,20cyclictest0-21swapper/010:20:240
32661993010,4cyclictest0-21swapper/111:04:311
32661992910,4cyclictest0-21swapper/110:44:251
32660992910,1cyclictest0-21swapper/009:05:300
32660992910,18cyclictest0-21swapper/011:20:270
3266199281,4cyclictest0-21swapper/108:34:251
32660992819,9cyclictest0-21swapper/009:52:360
32661992725,1cyclictest231ktimersoftd/112:29:251
3266199271,6cyclictest0-21swapper/111:24:001
3266199271,25cyclictest0-21swapper/111:03:061
32660992710,2cyclictest0-21swapper/009:32:200
3266199267,6cyclictest0-21swapper/112:28:381
3266199263,5cyclictest0-21swapper/108:33:451
32660992611,14cyclictest0-21swapper/011:18:510
3266199251,7cyclictest0-21swapper/107:24:261
3266199251,11cyclictest0-21swapper/110:39:231
32661992510,8cyclictest0-21swapper/108:59:221
32661992510,6cyclictest0-21swapper/108:11:361
32661992510,2cyclictest0-21swapper/112:16:491
32660992523,1cyclictest15955-21ssh12:09:590
32660992510,0cyclictest0-21swapper/007:19:160
3266099250,23cyclictest0-21swapper/009:55:220
32661992410,6cyclictest0-21swapper/111:59:561
32660992410,6cyclictest0-21swapper/010:29:060
32660992410,1cyclictest0-21swapper/009:23:350
3266099240,2cyclictest0-21swapper/011:32:140
32661992318,5cyclictest10156-21apache212:37:251
3266199231,7cyclictest2198-21basename07:14:111
32661992310,4cyclictest0-21swapper/111:29:231
32660992317,5cyclictest10183-21apache210:32:240
32660992316,6cyclictest8637-21ssh11:59:410
32660992310,3cyclictest0-21swapper/011:25:140
32660992310,10cyclictest0-21swapper/012:15:560
3266199224,12cyclictest0-21swapper/108:54:291
3266199222,8cyclictest0-21swapper/111:54:251
3266199222,5cyclictest28039-21ssh10:12:191
32661992222,0cyclictest31683-21kworker/u4:111:49:591
3266199221,5cyclictest0-21swapper/110:54:251
32661992211,4cyclictest0-21swapper/107:44:221
32661992210,4cyclictest0-21swapper/109:42:081
3266199220,2cyclictest0-21swapper/109:25:511
3266099228,10cyclictest32489-21/usr/sbin/munin11:04:230
32660992217,4cyclictest10156-21apache209:39:230
32660992215,6cyclictest10156-21apache211:40:380
3266099221,17cyclictest31683-21kworker/u4:111:45:110
3266099221,17cyclictest0-21swapper/011:49:580
32660992210,6cyclictest0-21swapper/010:53:020
3266099220,21cyclictest0-21swapper/010:12:160
2391622210,2sleep10-21swapper/110:06:041
3266199215,11cyclictest0-21swapper/109:44:331
3266199214,11cyclictest0-21swapper/110:29:261
3266199213,17cyclictest0-21swapper/108:19:231
32661992119,1cyclictest0-21swapper/111:43:061
32661992111,6cyclictest100250irq/107-eth1-rx11:34:431
32661992110,8cyclictest0-21swapper/110:14:251
32661992110,6cyclictest0-21swapper/109:29:181
32661992110,5cyclictest0-21swapper/108:49:301
3266199210,16cyclictest0-21swapper/109:56:101
3266099216,11cyclictest0-21swapper/007:09:270
32660992119,2cyclictest0-21swapper/008:19:400
32660992117,4cyclictest0-21swapper/007:52:440
32660992116,1cyclictest0-21swapper/009:12:560
3266099211,15cyclictest14198-21diskmemload12:22:460
32660992110,8cyclictest0-21swapper/010:37:550
32660992110,8cyclictest0-21swapper/010:15:420
32660992110,4cyclictest0-21swapper/012:31:040
32660992110,4cyclictest0-21swapper/011:58:360
3266199206,12cyclictest0-21swapper/109:11:471
3266199204,9cyclictest0-21swapper/109:34:231
3266199204,8cyclictest0-21swapper/107:39:221
3266199202,12cyclictest0-21swapper/107:19:271
32661992012,6cyclictest0-21swapper/110:35:421
32661992010,3cyclictest0-21swapper/112:04:221
32661992010,3cyclictest0-21swapper/109:04:271
32661992010,3cyclictest0-21swapper/108:44:211
32661992010,2cyclictest0-21swapper/111:09:211
32661992010,1cyclictest0-21swapper/110:20:251
32661992010,0cyclictest0-21swapper/109:18:391
32660992019,0cyclictest8442-21find09:44:300
32660992014,3cyclictest18379-21/usr/sbin/munin10:44:280
32660992013,2cyclictest0-21swapper/011:11:330
3266099201,14cyclictest0-21swapper/009:34:260
32660992010,6cyclictest0-21swapper/008:49:230
32660992010,5cyclictest0-21swapper/010:59:080
32660992010,2cyclictest0-21swapper/012:25:330
32660992010,2cyclictest0-21swapper/007:39:240
32660992010,1cyclictest0-21swapper/009:17:380
3266199196,4cyclictest0-21swapper/109:59:571
32661991910,6cyclictest0-21swapper/108:14:221
32661991910,5cyclictest10156-21apache210:52:091
32661991910,5cyclictest0-21swapper/112:21:101
32661991910,1cyclictest0-21swapper/111:28:561
3266199190,4cyclictest32688-21apache_volume07:09:221
32660991917,1cyclictest32658-21cyclictest08:16:080
32660991910,5cyclictest0-21swapper/012:06:290
32660991910,2cyclictest0-21swapper/007:29:220
3266099190,1cyclictest0-21swapper/007:56:480
32661991810,5cyclictest0-21swapper/108:04:231
32661991810,2cyclictest0-21swapper/111:14:151
32661991810,1cyclictest0-21swapper/111:48:231
32661991810,0cyclictest0-21swapper/107:59:221
3266099189,4cyclictest5303-21grep08:44:240
3266099184,11cyclictest0-21swapper/008:04:270
3266099184,11cyclictest0-21swapper/007:24:330
3266099183,8cyclictest0-21swapper/007:44:310
3266099183,11cyclictest0-21swapper/008:59:220
32660991811,5cyclictest9097-21munin-node08:27:280
32660991810,4cyclictest0-21swapper/007:14:270
32660991810,3cyclictest0-21swapper/011:37:280
32660991810,3cyclictest0-21swapper/010:39:230
1768521810,0sleep10-21swapper/112:13:541
415121710,1sleep00-21swapper/008:40:030
32661991710,2cyclictest0-21swapper/107:37:521
32661991710,2cyclictest0-21swapper/107:29:221
3266099174,4cyclictest11367-21ls07:34:300
32660991711,3cyclictest10156-21apache209:59:150
32660991710,2cyclictest0-21swapper/010:59:220
32660991710,2cyclictest0-21swapper/008:59:060
32660991710,1cyclictest0-21swapper/012:39:110
32660991710,1cyclictest0-21swapper/008:29:240
32661991610,2cyclictest0-21swapper/107:54:111
32661991610,2cyclictest0-21swapper/107:49:251
3266199160,4cyclictest31194-21cron08:29:101
3266099162,7cyclictest0-21swapper/008:34:220
32660991610,6cyclictest0-21swapper/008:10:540
32660991513,1cyclictest10156-21apache207:59:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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