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2026-04-16 - 23:57
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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 Thu Apr 16, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
936226955,9sleep10-21swapper/107:04:141
1097226651,8sleep00-21swapper/007:07:400
11295993939,0cyclictest0-21swapper/011:43:390
11295993613,3cyclictest0-21swapper/012:10:230
1129699320,31cyclictest0-21swapper/111:58:311
11295993110,8cyclictest0-21swapper/009:29:310
11296992929,0cyclictest0-21swapper/107:27:331
1129599290,24cyclictest0-21swapper/011:12:480
11295992710,6cyclictest0-21swapper/008:24:240
1129699261,24cyclictest0-21swapper/109:58:551
11296992610,1cyclictest0-21swapper/110:18:231
11295992624,1cyclictest0-21swapper/010:24:110
1129599260,13cyclictest0-21swapper/009:44:280
11296992524,1cyclictest0-21swapper/111:19:041
11296992522,1cyclictest0-21swapper/109:39:201
11296992510,10cyclictest0-21swapper/109:32:141
1129699250,2cyclictest0-21swapper/111:59:381
1129599250,23cyclictest0-21swapper/011:58:570
11296992424,0cyclictest100150irq/106-eth1-rx11:11:481
11296992419,3cyclictest21133-21apache210:47:131
11296992416,3cyclictest0-21swapper/111:39:541
11295992421,2cyclictest0-21swapper/009:16:230
11295992413,6cyclictest0-21swapper/011:59:200
11295992410,9cyclictest0-21swapper/010:59:210
1129699233,12cyclictest0-21swapper/111:44:221
11296992310,6cyclictest12305-21ssh10:19:261
11296992310,5cyclictest0-21swapper/108:49:091
11296992310,1cyclictest0-21swapper/112:23:291
11296992310,0cyclictest0-21swapper/110:57:161
1129699230,22cyclictest0-21swapper/111:21:491
1129699230,19cyclictest0-21swapper/107:09:211
11295992323,0cyclictest0-21swapper/010:32:460
11295992323,0cyclictest0-21swapper/009:08:080
11295992320,3cyclictest21110-21apache210:39:460
11295992316,3cyclictest0-21swapper/011:37:030
11295992310,6cyclictest0-21swapper/011:15:110
11295992310,0cyclictest0-21swapper/011:44:160
1129599230,18cyclictest0-21swapper/007:51:030
1129699225,7cyclictest25145-21diskmemload09:09:231
1129699225,3cyclictest91rcu_preempt11:35:461
11296992222,0cyclictest0-21swapper/109:19:141
11296992218,1cyclictest24-21ksoftirqd/111:08:461
11296992210,1cyclictest0-21swapper/111:31:111
1129699220,21cyclictest0-21swapper/112:11:261
1129599227,8cyclictest24876-21cron07:44:090
1129599226,12cyclictest0-21swapper/007:09:280
1129599225,10cyclictest0-21swapper/010:14:200
1129599224,13cyclictest0-21swapper/007:59:230
11295992212,6cyclictest22418-21kworker/u4:210:09:140
11295992210,2cyclictest0-21swapper/008:11:410
1129699214,9cyclictest0-21swapper/110:39:201
1129699212,18cyclictest0-21swapper/111:49:211
11296992120,0cyclictest24-21ksoftirqd/112:24:261
11296992115,4cyclictest231ktimersoftd/109:05:511
11296992115,1cyclictest24-21ksoftirqd/107:39:221
11296992114,2cyclictest11293-21cyclictest10:10:091
11296992112,6cyclictest11293-21cyclictest08:22:451
11296992110,7cyclictest0-21swapper/109:26:331
1129599212,11cyclictest0-21swapper/010:19:220
11295992119,1cyclictest0-21swapper/008:39:260
11295992110,7cyclictest0-21swapper/010:00:070
11295992110,6cyclictest0-21swapper/009:19:220
11295992110,3cyclictest0-21swapper/010:54:020
11296992019,0cyclictest24-21ksoftirqd/107:29:211
11296992011,6cyclictest21133-21apache212:14:101
11296992010,6cyclictest0-21swapper/107:52:241
11296992010,5cyclictest0-21swapper/112:34:321
11296992010,0cyclictest0-21swapper/112:32:311
1129699200,14cyclictest0-21swapper/110:29:261
1129599206,11cyclictest0-21swapper/010:45:530
1129599205,9cyclictest0-21swapper/007:19:210
1129599202,17cyclictest0-21swapper/008:34:100
1129599201,9cyclictest167-21systemd-journal09:04:090
11295992018,2cyclictest21133-21apache209:28:570
11295992016,1cyclictest0-21swapper/010:08:150
11295992013,2cyclictest745-21watchprog-snmpd11:29:170
1129599201,17cyclictest0-21swapper/010:37:470
11295992010,6cyclictest0-21swapper/009:09:210
11295992010,5cyclictest0-21swapper/012:22:390
1129599200,1cyclictest0-21swapper/011:26:020
1129699199,6cyclictest0-21swapper/110:24:511
11296991919,0cyclictest21133-21apache209:35:011
11296991917,1cyclictest24-21ksoftirqd/111:24:291
11296991911,2cyclictest0-21swapper/107:23:021
1129699191,11cyclictest0-21swapper/108:04:241
11296991910,8cyclictest0-21swapper/112:04:261
11296991910,6cyclictest0-21swapper/109:59:291
11296991910,4cyclictest0-21swapper/110:49:221
11296991910,2cyclictest0-21swapper/110:04:221
1129699190,6cyclictest22214-21/usr/sbin/munin09:49:251
1129599196,5cyclictest0-21swapper/009:49:190
11295991910,7cyclictest0-21swapper/012:36:520
11295991910,2cyclictest0-21swapper/011:07:160
11295991910,2cyclictest0-21swapper/007:14:250
1129699183,6cyclictest25517-21/usr/sbin/munin07:44:231
1129699182,6cyclictest29500-21/usr/sbin/munin07:54:261
1129699182,10cyclictest0-21swapper/108:54:281
11296991810,5cyclictest0-21swapper/109:14:231
11296991810,4cyclictest4151-21/usr/sbin/munin08:14:241
11296991810,4cyclictest0-21swapper/108:30:181
11296991810,1cyclictest0-21swapper/109:47:241
1129599182,7cyclictest0-21swapper/009:39:250
11295991815,2cyclictest744-21snmpd08:34:520
11295991812,4cyclictest0-21swapper/011:49:250
11295991811,2cyclictest0-21swapper/011:19:220
11295991810,3cyclictest0-21swapper/012:25:590
11295991810,3cyclictest0-21swapper/012:14:200
11295991810,3cyclictest0-21swapper/009:54:200
11295991810,3cyclictest0-21swapper/007:54:290
11295991810,2cyclictest0-21swapper/010:54:220
11295991810,2cyclictest0-21swapper/009:34:120
1129699179,6cyclictest7790-21apache_processe10:59:221
1129699174,6cyclictest14337-21/usr/sbin/munin08:39:241
11296991710,3cyclictest0-21swapper/108:49:221
11296991710,3cyclictest0-21swapper/107:34:091
11296991710,2cyclictest0-21swapper/108:09:241
1129599175,4cyclictest5182-21/usr/sbin/munin08:14:290
1129599171,9cyclictest0-21swapper/008:54:210
11295991714,3cyclictest802-21apache212:06:290
11295991710,3cyclictest0-21swapper/007:29:200
11295991710,2cyclictest0-21swapper/007:34:280
11295991710,1cyclictest0-21swapper/008:51:220
1129599170,11cyclictest7616-21/usr/sbin/munin12:29:230
1129699163,9cyclictest0-21swapper/108:24:281
1129699162,10cyclictest0-21swapper/108:34:291
1129699161,6cyclictest0-21swapper/110:34:391
11296991610,3cyclictest24-21ksoftirqd/107:14:291
1129599164,8cyclictest25745-21/usr/sbin/munin07:44:250
11295991610,2cyclictest0-21swapper/008:04:250
11295991610,1cyclictest0-21swapper/008:19:210
11296991513,1cyclictest231ktimersoftd/108:59:241
11296991510,2cyclictest0-21swapper/107:59:211
1129599152,3cyclictest16227-21/usr/sbin/munin08:44:250
1129599151,5cyclictest17079-21apache_accesses07:24:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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