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2026-03-28 - 21:10
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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 Sat Mar 28, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2861222250,3sleep128611-21cut07:04:281
2998127259,8sleep00-21swapper/007:06:290
30432993410,15cyclictest0-21swapper/111:19:241
30431993431,0cyclictest0-21swapper/009:50:310
3043299312,4cyclictest101rcu_sched10:24:181
3043199300,1cyclictest0-21swapper/009:28:220
3043299280,5cyclictest16582-21irqstats09:14:341
30431992710,8cyclictest0-21swapper/011:29:080
30431992710,14cyclictest0-21swapper/011:57:340
30431992710,11cyclictest0-21swapper/009:55:190
3043299262,21cyclictest0-21swapper/110:50:171
30432992610,1cyclictest0-21swapper/109:11:171
30432992610,10cyclictest0-21swapper/108:44:371
30431992624,1cyclictest81ktimersoftd/008:04:290
30431992610,8cyclictest0-21swapper/010:38:140
30432992524,0cyclictest100250irq/107-eth1-rx12:37:571
30432992514,5cyclictest7927-21apache210:04:281
30431992517,8cyclictest0-21swapper/010:02:530
30431992516,8cyclictest0-21swapper/012:26:390
3043199250,22cyclictest0-21swapper/007:58:570
30431992422,1cyclictest636-21nscd12:08:260
30431992419,5cyclictest7953-21apache208:47:460
30431992410,9cyclictest100250irq/107-eth1-rx11:22:180
30431992410,7cyclictest0-21swapper/010:56:340
30432992318,4cyclictest7927-21apache212:34:021
30432992315,4cyclictest0-21swapper/110:38:161
30432992311,7cyclictest14970-21kworker/u4:212:14:071
30432992310,9cyclictest100150irq/106-eth1-rx11:57:051
30432992310,8cyclictest0-21swapper/110:43:071
30432992310,2cyclictest0-21swapper/109:58:401
3043299230,21cyclictest23788-21apache_volume10:09:291
3043299230,11cyclictest0-21swapper/107:09:291
3043199236,11cyclictest0-21swapper/010:39:310
30431992323,0cyclictest0-21swapper/011:37:460
30431992321,1cyclictest0-21swapper/009:13:190
30431992310,3cyclictest0-21swapper/009:44:300
3043199230,15cyclictest11353-21/usr/sbin/munin09:04:380
89722210,1sleep00-21swapper/012:38:470
30432992220,1cyclictest0-21swapper/110:02:581
30432992218,3cyclictest636-21nscd11:40:291
30432992215,6cyclictest7953-21apache211:11:221
30432992214,3cyclictest7927-21apache211:49:341
30432992210,10cyclictest0-21swapper/109:52:381
3043299220,16cyclictest0-21swapper/109:04:381
3043199223,13cyclictest0-21swapper/007:49:390
30431992217,4cyclictest802-21apache209:38:120
30431992217,1cyclictest0-21swapper/012:17:350
30431992210,4cyclictest0-21swapper/009:19:260
3043299216,8cyclictest0-21swapper/109:30:331
3043299214,7cyclictest0-21swapper/107:26:461
30432992121,0cyclictest0-21swapper/112:22:511
3043299211,15cyclictest0-21swapper/107:21:031
30432992110,6cyclictest0-21swapper/112:24:291
30432992110,3cyclictest0-21swapper/109:27:031
30432992110,2cyclictest0-21swapper/111:27:181
3043199214,11cyclictest0-21swapper/007:39:310
30431992117,3cyclictest0-21swapper/009:32:350
30431992110,8cyclictest0-21swapper/008:14:360
30431992110,10cyclictest0-21swapper/010:05:500
30431992110,0cyclictest0-21swapper/012:22:270
3043199210,15cyclictest0-21swapper/010:25:380
30432992012,5cyclictest7927-21apache212:16:371
30432992010,7cyclictest0-21swapper/111:48:301
30432992010,4cyclictest0-21swapper/110:25:431
30432992010,4cyclictest0-21swapper/108:24:311
30432992010,4cyclictest0-21swapper/107:18:491
3043299200,6cyclictest8758-21idleruntime-cro12:04:181
3043199202,9cyclictest0-21swapper/008:59:360
30431992016,3cyclictest7927-21apache210:16:390
30431992014,4cyclictest7927-21apache211:07:390
30431992012,5cyclictest0-21swapper/011:09:330
30431992011,6cyclictest0-21swapper/010:50:020
30431992010,8cyclictest0-21swapper/008:39:370
30431992010,5cyclictest7927-21apache212:09:190
2925322010,0sleep00-21swapper/011:01:320
847021910,0sleep00-21swapper/010:32:570
3043299195,7cyclictest0-21swapper/108:29:381
3043299193,12cyclictest0-21swapper/110:54:311
30432991913,4cyclictest7953-21apache208:59:331
30432991910,9cyclictest0-21swapper/111:31:581
30432991910,9cyclictest0-21swapper/111:00:021
30432991910,6cyclictest0-21swapper/109:44:361
30432991910,4cyclictest0-21swapper/108:19:321
30432991910,2cyclictest0-21swapper/109:44:131
3043199199,8cyclictest7927-21apache211:51:080
3043199198,10cyclictest0-21swapper/008:34:350
3043199193,8cyclictest0-21swapper/010:44:420
30431991917,1cyclictest27387-21tune2fs11:44:310
30431991917,1cyclictest0-21swapper/012:29:320
30431991913,4cyclictest7953-21apache209:14:250
30431991910,6cyclictest0-21swapper/007:09:350
30431991910,5cyclictest0-21swapper/010:19:350
30431991910,4cyclictest0-21swapper/007:59:390
30431991910,2cyclictest0-21swapper/011:40:100
824021810,1sleep10-21swapper/111:17:351
3239221810,0sleep10-21swapper/108:35:321
3043299186,7cyclictest0-21swapper/107:49:301
3043299183,8cyclictest10473-21if_eth307:39:321
3043299183,8cyclictest0-21swapper/110:14:281
3043299182,6cyclictest0-21swapper/109:34:341
3043299181,8cyclictest21810-21ssh09:21:161
30432991812,0cyclictest23342-21/usr/sbin/munin08:14:321
30432991810,5cyclictest0-21swapper/107:59:311
30432991810,4cyclictest0-21swapper/110:44:371
30431991818,0cyclictest81ktimersoftd/007:34:190
30431991818,0cyclictest0-21swapper/011:15:410
30431991816,1cyclictest7953-21apache208:54:300
2514121810,0sleep00-21swapper/010:09:410
3043299175,6cyclictest0-21swapper/108:09:361
3043299174,6cyclictest7590-21munin-run07:34:181
30432991714,1cyclictest19896-21/usr/sbin/munin11:34:301
30432991710,3cyclictest0-21swapper/112:04:301
30432991710,3cyclictest0-21swapper/110:29:461
30432991710,2cyclictest0-21swapper/107:46:251
30432991710,1cyclictest0-21swapper/111:04:261
3043199174,11cyclictest0-21swapper/007:29:340
3043199173,10cyclictest0-21swapper/011:59:290
30431991710,6cyclictest0-21swapper/008:13:290
30431991710,3cyclictest0-21swapper/008:29:380
30431991710,1cyclictest0-21swapper/009:39:290
30431991710,1cyclictest0-21swapper/008:49:340
3043199170,14cyclictest0-21swapper/008:25:410
3043299164,9cyclictest0-21swapper/107:34:331
3043299164,5cyclictest0-21swapper/108:39:351
3043299163,6cyclictest8139-21sendmail-msp08:59:171
3043199164,9cyclictest0-21swapper/007:44:320
30431991616,0cyclictest0-21swapper/008:22:370
30431991614,1cyclictest0-21swapper/007:28:080
30431991610,4cyclictest1986-21apache_volume07:19:300
30431991610,0cyclictest0-21swapper/011:32:110
30432991510,2cyclictest0-21swapper/107:54:301
30431991510,2cyclictest0-21swapper/007:15:010
3043299144,7cyclictest0-21swapper/108:04:361
3043299142,9cyclictest0-21swapper/108:49:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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