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2026-05-04 - 21:56
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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 May 04, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3090926947,17sleep00-21swapper/007:04:160
3044726855,8sleep10-21swapper/107:04:011
202032640,0sleep10-21swapper/109:15:011
160242520,2sleep13253999cyclictest12:34:011
32538993322,8cyclictest0-21swapper/009:10:360
32538993210,12cyclictest0-21swapper/010:39:180
32539993110,20cyclictest0-21swapper/109:13:201
32539993015,9cyclictest100250irq/107-eth1-rx11:13:121
32538992928,0cyclictest0-21swapper/010:50:150
3253899290,1cyclictest0-21swapper/011:55:480
32539992813,14cyclictest0-21swapper/111:58:081
32539992810,15cyclictest0-21swapper/107:39:211
3253999280,21cyclictest0-21swapper/110:50:131
32539992610,8cyclictest0-21swapper/109:04:151
32538992624,1cyclictest636-21nscd10:19:070
3253899262,23cyclictest0-21swapper/009:50:420
3253899260,25cyclictest32733-21/usr/sbin/munin11:34:220
32539992521,1cyclictest0-21swapper/109:20:181
32538992522,2cyclictest0-21swapper/012:23:320
32538992521,3cyclictest81ktimersoftd/007:39:130
32538992519,4cyclictest10061-21apache210:07:160
32538992511,13cyclictest0-21swapper/010:34:490
3253999248,15cyclictest0-21swapper/110:29:071
3253999245,18cyclictest0-21swapper/109:49:371
32539992420,3cyclictest10033-21apache212:35:481
3253899244,4cyclictest7-21ksoftirqd/009:54:210
3253899242,21cyclictest1872-21/usr/sbin/munin10:14:210
32538992419,2cyclictest81ktimersoftd/010:26:300
32538992410,1cyclictest0-21swapper/012:03:180
32539992310,9cyclictest0-21swapper/110:09:371
32539992310,3cyclictest0-21swapper/109:30:231
32539992310,10cyclictest0-21swapper/108:34:131
32538992323,0cyclictest0-21swapper/012:19:010
32538992321,1cyclictest7-21ksoftirqd/011:44:120
32538992321,1cyclictest7-21ksoftirqd/007:34:130
32538992320,3cyclictest10061-21apache208:13:490
32538992318,5cyclictest8316-21munin-node07:29:120
32538992310,5cyclictest0-21swapper/009:35:010
3253899230,2cyclictest0-21swapper/011:31:120
3253899230,23cyclictest0-21swapper/010:54:340
3253899230,15cyclictest0-21swapper/008:04:220
3253999223,10cyclictest4045-21/usr/sbin/munin12:19:211
32539992220,2cyclictest0-21swapper/107:17:091
32539992219,0cyclictest0-21swapper/110:17:251
32539992210,6cyclictest49542sleep110:19:121
3253999220,21cyclictest0-21swapper/109:02:231
3253899224,16cyclictest2095-21/usr/sbin/munin07:14:130
32538992210,2cyclictest0-21swapper/012:29:390
3253899220,0cyclictest0-21swapper/011:27:290
1196422210,0sleep10-21swapper/111:48:371
3253999218,13cyclictest0-21swapper/108:39:231
3253999215,10cyclictest0-21swapper/107:24:141
3253999212,6cyclictest0-21swapper/109:59:151
32539992119,1cyclictest10061-21apache210:34:081
32539992110,8cyclictest0-21swapper/111:30:251
32539992110,6cyclictest0-21swapper/110:39:221
32539992110,5cyclictest0-21swapper/107:59:121
32539992110,3cyclictest0-21swapper/109:47:091
32539992110,2cyclictest0-21swapper/108:24:351
3253999210,20cyclictest0-21swapper/110:06:231
3253899216,7cyclictest14087-21diskmemload12:34:070
32538992121,0cyclictest10061-21apache209:48:000
32538992116,2cyclictest0-21swapper/012:04:500
32538992112,3cyclictest0-21swapper/011:04:150
32538992110,8cyclictest100250irq/107-eth1-rx11:50:090
32538992110,1cyclictest0-21swapper/011:01:130
3253999207,13cyclictest0-21swapper/112:27:011
3253999205,10cyclictest0-21swapper/108:29:191
3253999202,7cyclictest0-21swapper/109:39:211
32539992018,2cyclictest6607-21apache207:19:161
32539992012,3cyclictest100250irq/107-eth1-rx11:09:001
32539992010,6cyclictest744-21snmpd08:22:191
32539992010,6cyclictest0-21swapper/107:57:311
32539992010,6cyclictest0-21swapper/107:34:171
32539992010,5cyclictest0-21swapper/111:00:491
32539992010,4cyclictest0-21swapper/111:36:261
32539992010,4cyclictest0-21swapper/109:35:461
3253899209,5cyclictest648-21nscd12:09:090
32538992011,4cyclictest0-21swapper/011:19:140
32538992010,3cyclictest0-21swapper/010:29:070
2490922010,0sleep00-21swapper/009:21:340
3253999196,13cyclictest0-21swapper/109:58:391
3253999194,9cyclictest0-21swapper/112:14:211
3253999193,9cyclictest0-21swapper/111:49:141
3253999192,7cyclictest15883-21/usr/sbin/munin07:49:131
3253999192,11cyclictest0-21swapper/111:14:131
32539991918,1cyclictest802-21apache207:48:041
32539991918,1cyclictest10061-21apache212:10:161
32539991915,3cyclictest6607-21apache207:09:141
32539991914,4cyclictest802-21apache212:04:191
32539991910,4cyclictest0-21swapper/111:23:011
32539991910,4cyclictest0-21swapper/110:26:511
3253999190,1cyclictest0-21swapper/112:00:051
3253899196,5cyclictest26743-21hddtemp_smartct09:24:140
3253899194,6cyclictest0-21swapper/008:59:120
3253899192,7cyclictest0-21swapper/007:24:120
3253899192,10cyclictest0-21swapper/008:24:150
32538991917,1cyclictest17796-21apache_accesses07:54:110
32538991917,1cyclictest0-21swapper/011:10:090
32538991910,3cyclictest0-21swapper/008:49:160
32538991910,2cyclictest0-21swapper/007:49:120
3253899190,9cyclictest11576-21rm12:28:200
3253899190,7cyclictest0-21swapper/009:59:160
1660121910,0sleep00-21swapper/011:14:060
595821810,0sleep10-21swapper/108:44:541
3253999187,10cyclictest0-21swapper/110:44:201
3253999185,8cyclictest0-21swapper/110:54:131
3253999184,11cyclictest0-21swapper/108:04:171
3253999181,9cyclictest10286-21sendmail-msp08:59:011
32539991812,4cyclictest0-21swapper/109:28:241
32539991810,2cyclictest0-21swapper/107:29:131
32539991810,1cyclictest0-21swapper/108:52:051
32539991810,0cyclictest0-21swapper/111:25:511
3253899182,8cyclictest0-21swapper/008:19:220
32538991816,1cyclictest32536-21cyclictest07:09:140
32538991813,3cyclictest0-21swapper/008:34:140
32538991813,1cyclictest101rcu_sched09:16:010
32538991810,7cyclictest0-21swapper/010:10:380
32538991810,4cyclictest0-21swapper/009:29:510
32538991810,4cyclictest0-21swapper/008:00:150
32538991810,3cyclictest0-21swapper/009:42:490
3253999171,8cyclictest0-21swapper/108:09:181
32539991710,5cyclictest0-21swapper/111:43:401
3253899175,4cyclictest26236-21ntp_states08:14:190
3253899173,6cyclictest0-21swapper/008:44:230
3253899171,4cyclictest0-21swapper/011:40:150
32538991711,0cyclictest0-21swapper/008:33:170
32538991710,5cyclictest0-21swapper/010:44:030
32538991710,2cyclictest0-21swapper/009:04:140
3253999160,9cyclictest25472-21apache_processe08:14:131
3253899162,9cyclictest8440-21apache_processe08:54:110
3253899161,2cyclictest0-21swapper/008:39:140
32538991610,3cyclictest30219-21kworker/0:007:20:210
32538991410,0cyclictest0-21swapper/007:46:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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