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2026-01-09 - 15:29
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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 Fri Jan 09, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2816826956,8sleep00-21swapper/007:07:120
2825026849,9sleep10-21swapper/107:08:031
79852670,1sleep10-21swapper/109:46:131
28605993110,1cyclictest0-21swapper/012:09:280
28606993030,0cyclictest0-21swapper/110:05:541
28605993019,11cyclictest0-21swapper/008:39:480
28606992921,5cyclictest1234-21kworker/u4:010:01:021
28606992917,9cyclictest6149-21apache212:18:181
28606992910,18cyclictest0-21swapper/108:58:491
28605992827,1cyclictest0-21swapper/010:13:250
28606992724,2cyclictest0-21swapper/108:52:191
2860699270,25cyclictest32005-21ssh10:16:241
28605992727,0cyclictest0-21swapper/010:29:290
28606992626,0cyclictest0-21swapper/111:39:421
28605992511,5cyclictest0-21swapper/012:30:260
28605992510,9cyclictest0-21swapper/011:25:310
28605992510,7cyclictest0-21swapper/012:10:020
28605992510,3cyclictest0-21swapper/011:35:450
28605992510,10cyclictest0-21swapper/010:40:020
28606992424,0cyclictest0-21swapper/112:23:441
28606992424,0cyclictest0-21swapper/109:44:161
28606992417,3cyclictest6153-21apache209:24:151
28606992412,5cyclictest0-21swapper/112:04:101
28606992412,5cyclictest0-21swapper/112:04:101
2860699240,22cyclictest13728-21ssh09:54:241
28605992424,0cyclictest0-21swapper/011:18:280
28605992413,6cyclictest32666-21kworker/0:111:01:260
28605992410,5cyclictest0-21swapper/010:04:590
28606992323,0cyclictest0-21swapper/111:13:281
28606992323,0cyclictest0-21swapper/111:00:121
28606992310,11cyclictest100150irq/106-eth1-rx10:38:451
28605992310,9cyclictest0-21swapper/011:57:130
28605992310,5cyclictest0-21swapper/011:40:500
2860699223,14cyclictest30219-21runrttasks07:13:191
28606992220,1cyclictest0-21swapper/109:13:221
28606992216,3cyclictest0-21swapper/110:10:081
28606992216,2cyclictest3125-21sh10:20:281
2860699220,0cyclictest0-21swapper/111:18:391
2860599228,10cyclictest0-21swapper/009:15:000
2860599225,6cyclictest0-21swapper/008:10:070
28605992221,1cyclictest6153-21apache211:08:190
28605992218,3cyclictest6153-21apache211:31:290
28605992210,2cyclictest0-21swapper/010:57:500
28605992210,2cyclictest0-21swapper/009:37:190
964722110,0sleep10-21swapper/110:29:551
2860699212,7cyclictest14715-21apache_accesses09:15:001
28606992121,0cyclictest231ktimersoftd/112:30:221
28606992121,0cyclictest0-21swapper/107:23:121
28606992119,1cyclictest12990-21sh12:36:581
28606992117,3cyclictest6149-21apache207:35:101
28606992112,4cyclictest0-21swapper/110:51:321
28606992110,7cyclictest0-21swapper/108:45:031
28606992110,5cyclictest0-21swapper/111:20:031
28606992110,3cyclictest0-21swapper/108:30:001
28605992119,1cyclictest17823-21cpuspeed_turbos08:05:000
28605992118,1cyclictest7-21ksoftirqd/012:36:450
28605992115,3cyclictest1199-21runrttasks08:29:480
28605992111,8cyclictest100250irq/107-eth1-rx09:21:300
28605992110,8cyclictest0-21swapper/009:40:140
28605992110,3cyclictest0-21swapper/008:00:050
28605992110,0cyclictest0-21swapper/010:33:230
2860599210,15cyclictest0-21swapper/012:02:340
2860599210,15cyclictest0-21swapper/012:02:340
1333822110,0sleep00-21swapper/009:12:510
28606992020,0cyclictest28603-21cyclictest10:48:521
28606992012,7cyclictest0-21swapper/108:15:461
28606992010,4cyclictest0-21swapper/112:05:051
28606992010,4cyclictest0-21swapper/110:55:031
28606992010,3cyclictest0-21swapper/112:25:481
2860699200,8cyclictest6145-21apache211:55:021
2860699200,14cyclictest26069-21runrttasks12:12:331
28605992017,2cyclictest81ktimersoftd/009:47:320
28605992011,3cyclictest0-21swapper/010:20:060
28605992010,4cyclictest0-21swapper/010:35:180
28605992010,4cyclictest0-21swapper/009:30:020
28605992010,3cyclictest0-21swapper/011:51:500
28605992010,3cyclictest0-21swapper/009:05:030
28605992010,2cyclictest0-21swapper/007:39:510
233422010,1sleep00-21swapper/008:48:020
805921910,0sleep10-21swapper/111:08:551
2995321910,0sleep00-21swapper/012:17:530
2860699192,4cyclictest0-21swapper/111:24:511
28606991916,3cyclictest6149-21apache209:00:461
28606991916,2cyclictest0-21swapper/111:45:211
28606991910,6cyclictest100150irq/106-eth1-rx10:40:211
28606991910,4cyclictest0-21swapper/108:05:001
28606991910,4cyclictest0-21swapper/107:15:021
28606991910,2cyclictest0-21swapper/109:36:351
2860599198,9cyclictest21591-21apache_accesses08:15:020
28605991918,1cyclictest0-21swapper/007:42:430
28605991912,5cyclictest6149-21apache210:01:460
28605991910,6cyclictest0-21swapper/011:21:450
28605991910,6cyclictest0-21swapper/008:55:010
28605991910,5cyclictest0-21swapper/011:45:570
28605991910,4cyclictest0-21swapper/010:50:030
28605991910,4cyclictest0-21swapper/007:33:290
2860699187,7cyclictest0-21swapper/108:25:081
2860699185,10cyclictest0-21swapper/111:30:051
2860699183,8cyclictest0-21swapper/109:55:011
2860699183,10cyclictest0-21swapper/111:40:031
2860699181,9cyclictest0-21swapper/110:28:451
28606991814,3cyclictest6149-21apache209:26:261
28606991810,5cyclictest45-21kswapd011:50:001
28606991810,4cyclictest0-21swapper/109:30:021
28606991810,4cyclictest0-21swapper/107:55:071
2860699180,14cyclictest0-21swapper/108:40:111
2860599184,8cyclictest0-21swapper/012:25:020
2860599183,9cyclictest0-21swapper/007:45:000
2860599182,10cyclictest0-21swapper/007:10:020
28605991815,1cyclictest28603-21cyclictest09:55:120
28605991815,1cyclictest2447-21time07:25:040
28605991810,6cyclictest27366-21/usr/sbin/munin08:30:050
28605991810,6cyclictest0-21swapper/009:26:470
28605991810,4cyclictest0-21swapper/010:45:050
28605991810,3cyclictest0-21swapper/011:13:480
28605991810,3cyclictest0-21swapper/008:40:030
28605991810,1cyclictest0-21swapper/009:50:200
202821810,0sleep00-21swapper/012:23:380
1369021810,0sleep10-21swapper/107:54:291
3066421710,0sleep10-21swapper/108:35:591
28605991711,3cyclictest0-21swapper/009:00:480
28605991710,3cyclictest31450-21taskset10:15:100
28605991710,3cyclictest0-21swapper/007:20:090
2860699166,6cyclictest0-21swapper/108:00:011
2860699163,6cyclictest0-21swapper/109:05:011
28606991610,4cyclictest0-21swapper/108:20:011
28605991616,0cyclictest31994-21sshd07:16:450
28605991611,2cyclictest100250irq/107-eth1-rx07:55:020
28605991610,0cyclictest0-21swapper/008:50:420
28606991511,4cyclictest4000-21kworker/1:107:30:401
28606991511,2cyclictest0-21swapper/107:45:071
28606991510,5cyclictest4000-21kworker/1:107:42:441
28605991510,3cyclictest0-21swapper/007:51:430
28606991410,4cyclictest29222-21kworker/1:007:28:321
28606991410,2cyclictest0-21swapper/108:10:011
28605991410,4cyclictest0-21swapper/008:23:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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