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2026-05-07 - 00:01
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Wed May 06, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28132970,0sleep02812-21/usr/sbin/munin10:54:110
470427461,8sleep00-21swapper/007:07:590
138532720,0sleep00-21swapper/011:08:530
465626856,8sleep10-21swapper/107:07:291
4984993333,0cyclictest0-21swapper/111:14:501
4984993010,1cyclictest0-21swapper/110:31:021
4983993010,3cyclictest0-21swapper/011:32:030
4983993010,1cyclictest0-21swapper/009:50:570
4984992825,2cyclictest636-21nscd11:21:111
4984992825,2cyclictest636-21nscd11:21:111
4984992813,11cyclictest14809-21apache210:58:521
4983992825,2cyclictest30164-21ssh12:12:240
4983992727,0cyclictest0-21swapper/012:08:120
498399270,25cyclictest2445-21ssh10:53:420
4984992621,3cyclictest14835-21apache210:09:011
4984992610,8cyclictest0-21swapper/110:00:311
4983992610,4cyclictest0-21swapper/010:45:010
4984992519,4cyclictest14809-21apache212:13:541
4983992520,4cyclictest14835-21apache212:34:340
4983992520,4cyclictest0-21swapper/009:38:510
4983992510,14cyclictest0-21swapper/012:01:340
4983992510,0cyclictest0-21swapper/010:29:370
4984992420,2cyclictest231ktimersoftd/110:34:131
4984992418,4cyclictest14835-21apache209:41:551
4984992416,6cyclictest0-21swapper/110:27:381
4984992410,6cyclictest0-21swapper/107:59:111
4984992410,4cyclictest0-21swapper/111:59:291
4984992410,10cyclictest0-21swapper/107:39:111
498499240,24cyclictest0-21swapper/111:54:181
4983992410,8cyclictest0-21swapper/009:29:190
4983992410,5cyclictest0-21swapper/010:04:140
4983992410,2cyclictest0-21swapper/011:45:590
4984992310,9cyclictest0-21swapper/108:19:111
4984992310,10cyclictest0-21swapper/110:14:121
498399233,11cyclictest0-21swapper/009:19:120
4983992310,7cyclictest0-21swapper/011:40:050
4983992310,6cyclictest0-21swapper/009:25:200
4983992310,3cyclictest0-21swapper/008:44:120
2103822310,0sleep10-21swapper/109:10:261
498499225,10cyclictest0-21swapper/108:54:111
498499224,12cyclictest0-21swapper/111:09:121
498399224,5cyclictest6130-21ssh12:24:000
4983992218,3cyclictest802-21apache209:43:470
4983992212,5cyclictest0-21swapper/007:19:120
4983992210,6cyclictest0-21swapper/012:29:160
4983992210,3cyclictest0-21swapper/011:09:150
498499214,7cyclictest0-21swapper/110:50:321
498499213,15cyclictest0-21swapper/107:54:151
498499212,18cyclictest0-21swapper/112:31:441
4984992118,2cyclictest14809-21apache209:14:161
4984992118,2cyclictest0-21swapper/109:19:131
4984992117,2cyclictest18896-21diskmemload11:49:111
4984992111,8cyclictest0-21swapper/111:37:081
4984992110,7cyclictest0-21swapper/109:49:511
4984992110,4cyclictest0-21swapper/108:14:141
4984992110,4cyclictest0-21swapper/107:24:131
498399215,6cyclictest0-21swapper/008:54:110
498399212,4cyclictest0-21swapper/012:15:300
498399212,17cyclictest0-21swapper/008:24:160
4983992116,1cyclictest0-21swapper/009:57:430
4983992110,7cyclictest0-21swapper/011:51:210
4983992110,5cyclictest0-21swapper/009:44:040
498499205,10cyclictest0-21swapper/109:04:151
498499204,14cyclictest0-21swapper/112:19:121
498499202,17cyclictest0-21swapper/112:06:561
498499202,17cyclictest0-21swapper/107:14:131
4984992011,7cyclictest100150irq/106-eth1-rx11:30:571
4984992010,7cyclictest0-21swapper/109:34:071
4984992010,4cyclictest0-21swapper/110:48:261
4984992010,4cyclictest0-21swapper/107:46:301
4984992010,3cyclictest0-21swapper/108:35:251
4984992010,3cyclictest0-21swapper/108:24:111
4984992010,0cyclictest0-21swapper/111:27:041
498399205,7cyclictest0-21swapper/007:34:100
498399204,7cyclictest0-21swapper/010:14:350
4983992020,0cyclictest0-21swapper/011:28:480
4983992012,2cyclictest1199-21runrttasks08:13:500
4983992010,4cyclictest0-21swapper/011:34:020
4983992010,4cyclictest0-21swapper/009:14:110
4983992010,4cyclictest0-21swapper/009:12:540
4983992010,3cyclictest0-21swapper/010:19:060
4983992010,1cyclictest0-21swapper/008:34:150
4983992010,1cyclictest0-21swapper/008:16:140
4983992010,1cyclictest0-21swapper/007:17:010
498399200,5cyclictest0-21swapper/010:41:300
498499195,8cyclictest0-21swapper/110:39:151
498499194,9cyclictest100150irq/106-eth1-rx09:29:481
4984991918,0cyclictest0-21swapper/110:05:491
4984991911,6cyclictest5724-21awk11:39:191
4984991910,7cyclictest0-21swapper/112:34:161
4984991910,7cyclictest0-21swapper/109:24:101
4984991910,5cyclictest0-21swapper/107:49:161
4984991910,4cyclictest0-21swapper/111:45:471
4984991910,2cyclictest0-21swapper/107:29:131
4984991910,1cyclictest0-21swapper/109:56:011
4984991910,0cyclictest0-21swapper/112:18:461
498399199,5cyclictest0-21swapper/011:19:160
498399199,5cyclictest0-21swapper/011:19:160
4983991919,0cyclictest0-21swapper/008:04:220
4983991912,3cyclictest81ktimersoftd/012:26:450
4983991910,3cyclictest0-21swapper/010:09:120
4983991910,2cyclictest0-21swapper/011:16:350
1272321910,0sleep00-21swapper/010:24:130
498499184,6cyclictest0-21swapper/111:06:071
4984991810,4cyclictest0-21swapper/108:44:171
498499180,9cyclictest0-21swapper/108:04:101
498399184,7cyclictest10988-21diskstats07:24:120
498399183,9cyclictest0-21swapper/008:59:110
498399182,8cyclictest14468-21munin-run07:34:000
4983991818,0cyclictest14809-21apache211:01:160
4983991812,1cyclictest81ktimersoftd/009:04:170
4983991810,2cyclictest0-21swapper/008:44:000
4983991810,2cyclictest0-21swapper/007:09:130
4983991810,1cyclictest0-21swapper/007:59:160
1666721810,0sleep10-21swapper/109:01:031
498499176,6cyclictest0-21swapper/109:44:111
498499173,10cyclictest16013-21/usr/sbin/munin07:34:181
498499172,8cyclictest0-21swapper/112:29:001
4984991710,3cyclictest0-21swapper/111:02:291
4984991710,3cyclictest0-21swapper/110:23:501
4983991711,3cyclictest0-21swapper/011:54:110
4983991710,3cyclictest0-21swapper/008:49:110
4983991710,2cyclictest0-21swapper/010:03:300
4983991710,1cyclictest0-21swapper/010:35:490
498399170,6cyclictest4270-21/usr/sbin/munin08:29:160
498499165,5cyclictest12319-21sensors_temp08:49:191
4984991610,4cyclictest167-21systemd-journal08:29:251
498499160,15cyclictest8859-21apache_processe07:19:111
498399165,6cyclictest0-21swapper/007:54:150
498399164,7cyclictest0-21swapper/007:49:110
4983991614,1cyclictest14835-21apache208:19:100
4983991610,4cyclictest0-21swapper/007:44:110
498499157,6cyclictest5747-21/usr/sbin/munin07:09:181
498499153,7cyclictest0-21swapper/108:09:171
498499152,8cyclictest0-21swapper/108:39:101
4983991510,2cyclictest0-21swapper/007:39:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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