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2026-06-23 - 00:47
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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 Jun 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227332860,1sleep00-21swapper/011:48:380
226322760,2sleep11935199cyclictest10:18:571
1907527233,21sleep00-21swapper/007:07:400
1912927048,18sleep10-21swapper/107:08:151
247052670,1sleep10-21swapper/111:50:121
135232670,0sleep013521-21seq12:18:550
160602640,0sleep00-21swapper/009:28:200
19351992928,1cyclictest0-21swapper/111:00:021
19350992927,1cyclictest26351-21ssh12:37:190
19351992814,6cyclictest29213-21apache210:41:401
19350992810,10cyclictest0-21swapper/012:05:170
19351992620,4cyclictest29213-21apache212:13:451
19350992624,1cyclictest0-21swapper/010:02:010
19351992510,7cyclictest0-21swapper/107:38:461
1935199250,4cyclictest14817-21ntp_states10:08:551
19350992523,2cyclictest29213-21apache212:01:050
1935099252,22cyclictest17161-21ssh11:39:520
1935099251,5cyclictest0-21swapper/009:31:580
19351992424,0cyclictest0-21swapper/109:44:561
19351992410,0cyclictest0-21swapper/109:27:021
1935099242,19cyclictest0-21swapper/009:49:280
19350992411,6cyclictest21818-21/usr/sbin/munin11:03:540
19350992410,6cyclictest0-21swapper/011:20:210
1749122410,0sleep00-21swapper/008:24:500
2355922310,0sleep10-21swapper/109:38:221
19351992310,8cyclictest0-21swapper/109:18:471
1935099233,11cyclictest0-21swapper/009:03:570
19350992317,5cyclictest0-21swapper/010:48:490
19350992310,0cyclictest0-21swapper/009:53:460
1935199227,9cyclictest7227-21apache_accesses10:43:471
19351992221,1cyclictest0-21swapper/110:55:131
19351992217,4cyclictest744-21snmpd12:06:551
19351992210,7cyclictest0-21swapper/109:03:481
19351992210,3cyclictest0-21swapper/110:01:341
1935099225,12cyclictest0-21swapper/011:53:540
19350992222,0cyclictest0-21swapper/012:33:050
19350992220,1cyclictest468-21irqstats10:33:530
19350992219,2cyclictest81ktimersoftd/012:16:590
19350992219,2cyclictest29243-21apache211:03:110
19350992210,6cyclictest0-21swapper/011:43:490
19350992210,6cyclictest0-21swapper/009:36:300
19350992210,4cyclictest0-21swapper/010:43:510
1935199214,12cyclictest0-21swapper/108:18:491
1935199213,17cyclictest0-21swapper/110:05:101
1935199212,8cyclictest0-21swapper/107:18:481
19351992117,3cyclictest29213-21apache210:27:301
19351992116,4cyclictest29243-21apache209:41:231
19351992115,3cyclictest19348-21cyclictest08:51:481
19351992110,9cyclictest0-21swapper/111:33:311
19351992110,8cyclictest0-21swapper/111:56:381
19351992110,6cyclictest0-21swapper/107:13:491
19351992110,5cyclictest0-21swapper/107:59:181
19351992110,4cyclictest0-21swapper/111:33:501
19351992110,1cyclictest0-21swapper/111:05:421
1935199210,15cyclictest0-21swapper/109:09:481
19350992114,3cyclictest0-21swapper/009:12:120
19350992110,5cyclictest0-21swapper/011:34:160
19350992110,3cyclictest0-21swapper/010:19:180
19350992110,3cyclictest0-21swapper/007:33:380
19351992014,2cyclictest0-21swapper/112:12:311
1935199201,15cyclictest0-21swapper/111:46:271
1935199201,10cyclictest0-21swapper/110:33:491
19350992020,0cyclictest0-21swapper/008:35:160
19350992019,1cyclictest19666-21apache207:28:510
19350992017,3cyclictest29213-21apache208:16:550
19350992017,2cyclictest0-21swapper/008:01:250
19350992012,5cyclictest100150irq/106-eth1-rx09:14:200
19350992011,8cyclictest100350irq/108-eth1-tx11:24:520
19350992010,7cyclictest0-21swapper/008:03:500
19350992010,5cyclictest0-21swapper/009:39:360
19350992010,4cyclictest0-21swapper/008:40:180
19350992010,4cyclictest0-21swapper/007:53:510
1935199198,7cyclictest0-21swapper/107:48:541
1935199195,8cyclictest0-21swapper/112:33:461
1935199195,8cyclictest0-21swapper/107:23:581
1935199194,11cyclictest0-21swapper/108:38:481
1935199192,9cyclictest0-21swapper/108:08:591
19351991917,1cyclictest636-21nscd12:23:451
1935199191,10cyclictest0-21swapper/108:53:511
19351991910,6cyclictest0-21swapper/110:28:491
19351991910,6cyclictest0-21swapper/107:28:481
19351991910,4cyclictest0-21swapper/109:49:431
19351991910,4cyclictest0-21swapper/107:10:301
19351991910,3cyclictest0-21swapper/111:08:491
1935099197,7cyclictest883-21diskmemload10:53:490
1935099194,9cyclictest0-21swapper/012:08:530
19350991915,3cyclictest0-21swapper/010:38:510
1935099191,12cyclictest0-21swapper/010:23:550
19350991910,8cyclictest0-21swapper/011:29:330
19350991910,4cyclictest0-21swapper/008:58:510
19350991910,3cyclictest0-21swapper/008:53:510
1641921910,0sleep10-21swapper/109:28:461
1083721910,0sleep00-21swapper/009:20:080
1935199189,6cyclictest231ktimersoftd/111:18:371
1935199187,3cyclictest744-21snmpd11:20:021
19351991810,8cyclictest0-21swapper/108:23:571
19351991810,5cyclictest0-21swapper/111:24:171
19351991810,4cyclictest0-21swapper/109:53:571
19351991810,4cyclictest0-21swapper/108:28:581
19351991810,2cyclictest0-21swapper/109:13:501
19351991810,2cyclictest0-21swapper/108:03:571
19351991810,1cyclictest0-21swapper/111:42:241
1935099189,5cyclictest0-21swapper/008:48:550
1935099185,8cyclictest0-21swapper/008:43:500
1935099183,12cyclictest749-21apache_volume07:43:500
19350991817,0cyclictest0-21swapper/007:43:370
19350991814,2cyclictest31616-21sh11:16:270
19350991812,6cyclictest0-21swapper/008:08:490
19350991811,4cyclictest27809-21kworker/0:010:13:380
19350991810,5cyclictest0-21swapper/010:05:150
19350991810,4cyclictest0-21swapper/012:23:530
1935199178,6cyclictest29243-21apache212:28:451
1935199175,8cyclictest0-21swapper/108:13:471
1935199173,9cyclictest24521-21/usr/sbin/munin08:43:541
19351991716,1cyclictest29243-21apache208:58:581
19351991712,2cyclictest0-21swapper/111:59:091
19351991710,6cyclictest0-21swapper/112:20:581
19351991710,6cyclictest0-21swapper/110:17:551
19351991710,3cyclictest0-21swapper/107:33:501
19351991710,2cyclictest100250irq/107-eth1-rx10:48:391
1935099172,9cyclictest28583-21ssh10:28:390
19350991717,0cyclictest0-21swapper/010:11:060
19350991710,4cyclictest0-21swapper/009:46:050
19350991710,3cyclictest0-21swapper/007:23:490
1935199162,9cyclictest0-21swapper/108:33:491
1935099164,7cyclictest28988-21cron11:13:370
1935099164,6cyclictest0-21swapper/007:13:560
1935099162,7cyclictest0-21swapper/007:48:500
1935099161,7cyclictest0-21swapper/008:28:490
19350991610,1cyclictest0-21swapper/008:18:470
19351991510,2cyclictest0-21swapper/107:53:381
19351991510,2cyclictest0-21swapper/107:43:501
19350991515,0cyclictest579-21cron07:22:370
19350991510,0cyclictest0-21swapper/007:08:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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