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2026-05-28 - 01:06
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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 Wed May 27, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1655627462,8sleep10-21swapper/107:08:401
1637826846,17sleep00-21swapper/007:06:480
16754993535,0cyclictest0-21swapper/011:41:440
16755993410,23cyclictest0-21swapper/109:34:461
16755993210,20cyclictest0-21swapper/109:44:011
16755993030,0cyclictest24-21ksoftirqd/107:18:501
16755992828,0cyclictest0-21swapper/112:26:081
16754992710,17cyclictest0-21swapper/009:51:310
1675599261,24cyclictest0-21swapper/110:10:121
16755992610,8cyclictest0-21swapper/111:18:521
16755992610,4cyclictest0-21swapper/107:24:141
16754992621,2cyclictest14564-21taskset11:38:350
16754992610,8cyclictest0-21swapper/009:54:550
16755992524,0cyclictest24-21ksoftirqd/107:33:511
16755992522,1cyclictest0-21swapper/109:12:051
16755992514,7cyclictest100250irq/107-eth1-rx11:39:311
16754992424,0cyclictest0-21swapper/009:31:180
16754992422,1cyclictest636-21nscd10:05:570
16754992420,4cyclictest744-21snmpd12:28:120
16754992420,3cyclictest30626-21diskmemload09:19:050
16754992415,6cyclictest32546-1kworker/u5:012:07:110
16754992410,3cyclictest0-21swapper/010:20:180
16754992410,2cyclictest0-21swapper/010:26:470
1675599233,10cyclictest0-21swapper/107:44:031
16755992317,3cyclictest0-21swapper/111:31:121
16755992310,6cyclictest0-21swapper/109:54:361
16755992310,4cyclictest0-21swapper/110:30:571
16755992310,2cyclictest0-21swapper/110:55:191
1675499239,12cyclictest26601-21apache210:36:280
1675499237,7cyclictest0-21swapper/012:10:250
1675499234,13cyclictest0-21swapper/010:56:310
16754992317,5cyclictest3438-21munin-node09:02:520
16754992315,6cyclictest26585-21apache208:49:560
16755992222,0cyclictest0-21swapper/110:40:341
1675599222,16cyclictest0-21swapper/110:14:091
16755992221,1cyclictest26585-21apache207:54:101
16755992220,1cyclictest26601-21apache210:35:371
16755992218,3cyclictest0-21swapper/111:34:071
16755992218,0cyclictest100250irq/107-eth1-rx12:32:491
16755992210,7cyclictest0-21swapper/111:26:001
16755992210,5cyclictest0-21swapper/108:04:011
1675499228,9cyclictest23080-21ssh11:05:300
1675499228,9cyclictest23080-21ssh11:05:300
1675499222,8cyclictest0-21swapper/009:44:030
1675499222,16cyclictest0-21swapper/010:44:070
16754992215,5cyclictest26601-21apache210:11:130
16754992213,4cyclictest81ktimersoftd/012:20:070
16754992210,6cyclictest0-21swapper/009:10:400
16754992210,4cyclictest0-21swapper/011:29:010
16754992210,11cyclictest0-21swapper/012:37:130
1675499220,20cyclictest11002-21ssh12:16:190
1106722210,0sleep10-21swapper/110:07:011
1675599219,10cyclictest0-21swapper/112:00:361
1675599215,9cyclictest23014-21kworker/1:212:14:101
1675599215,12cyclictest0-21swapper/111:44:021
16755992110,4cyclictest0-21swapper/107:39:101
1675599210,9cyclictest0-21swapper/109:27:231
1675599210,13cyclictest30626-21diskmemload12:09:201
1675499216,8cyclictest0-21swapper/011:54:060
1675499213,9cyclictest27151-21runrttasks10:28:590
16754992121,0cyclictest0-21swapper/009:04:030
16754992118,3cyclictest3438-21munin-node10:51:550
16754992115,4cyclictest26601-21apache211:02:320
16754992114,6cyclictest26601-21apache209:28:210
16754992110,5cyclictest0-21swapper/009:34:300
16754992110,3cyclictest0-21swapper/007:29:020
1675499210,21cyclictest0-21swapper/012:02:060
300122200,1sleep030010-21ssh11:14:090
1675599203,10cyclictest0-21swapper/110:24:061
16755992018,2cyclictest0-21swapper/111:14:041
16755992016,3cyclictest26601-21apache210:50:091
16755992016,2cyclictest26585-21apache208:48:291
16755992011,7cyclictest100250irq/107-eth1-rx09:39:451
16755992010,7cyclictest26601-21apache212:34:031
16755992010,4cyclictest0-21swapper/111:52:451
1675499203,15cyclictest0-21swapper/011:44:090
1675499202,13cyclictest0-21swapper/011:19:020
16754992010,3cyclictest0-21swapper/011:49:070
1675599195,9cyclictest0-21swapper/108:54:121
1675599194,11cyclictest0-21swapper/108:34:051
1675599191,9cyclictest0-21swapper/110:44:571
16755991918,1cyclictest26601-21apache207:52:521
16755991916,2cyclictest744-21snmpd07:10:041
16755991911,7cyclictest0-21swapper/110:19:101
16755991911,6cyclictest0-21swapper/109:19:011
16755991910,6cyclictest0-21swapper/108:49:091
16755991910,5cyclictest0-21swapper/111:53:581
16755991910,4cyclictest8774-21ls08:09:091
16755991910,4cyclictest0-21swapper/111:00:101
16755991910,4cyclictest0-21swapper/110:00:051
16755991910,4cyclictest0-21swapper/109:14:001
16755991910,2cyclictest0-21swapper/112:04:131
16755991910,0cyclictest0-21swapper/109:49:001
1675499194,10cyclictest0-21swapper/008:19:050
1675499191,9cyclictest0-21swapper/007:09:000
16754991914,1cyclictest81ktimersoftd/009:41:480
16754991913,2cyclictest81ktimersoftd/008:24:110
16754991911,2cyclictest81ktimersoftd/012:33:160
16754991910,7cyclictest0-21swapper/008:54:090
16754991910,4cyclictest0-21swapper/009:14:270
1675499190,13cyclictest28417-21munin-run07:38:510
1243321910,0sleep10-21swapper/112:19:021
1675599184,7cyclictest0-21swapper/108:24:091
1675599183,10cyclictest0-21swapper/108:39:021
1675599182,3cyclictest0-21swapper/111:04:071
1675599182,3cyclictest0-21swapper/111:04:071
1675599181,6cyclictest0-21swapper/108:14:061
16755991815,2cyclictest16752-21cyclictest11:09:011
16755991813,4cyclictest26601-21apache207:59:041
16755991810,4cyclictest0-21swapper/108:19:021
16755991810,2cyclictest0-21swapper/108:29:001
16755991810,0cyclictest0-21swapper/109:29:081
1675499185,10cyclictest0-21swapper/010:14:060
16754991818,0cyclictest0-21swapper/010:41:100
16754991815,1cyclictest16752-21cyclictest07:14:070
16754991812,2cyclictest0-21swapper/009:59:070
16754991810,4cyclictest0-21swapper/008:14:070
16754991810,3cyclictest0-21swapper/007:24:020
518421710,0sleep00-21swapper/007:59:220
1675599177,5cyclictest30628-21idleruntime-cro09:08:501
16755991710,4cyclictest0-21swapper/107:19:091
1675599170,11cyclictest0-21swapper/107:29:021
1675499172,9cyclictest8748-21/usr/sbin/munin08:09:090
1675499172,9cyclictest0-21swapper/008:39:030
1675499171,9cyclictest0-21swapper/007:57:470
16754991716,1cyclictest6324-21ssh11:26:340
16754991711,5cyclictest0-21swapper/011:10:220
16754991710,4cyclictest0-21swapper/007:49:030
16754991710,3cyclictest0-21swapper/007:44:030
1675499164,5cyclictest0-21swapper/007:39:080
16754991616,0cyclictest81ktimersoftd/008:43:580
16754991610,1cyclictest0-21swapper/007:21:450
1675599155,3cyclictest27914-21awk08:59:111
1675499152,4cyclictest16386-21/usr/sbin/munin08:29:100
16754991510,4cyclictest0-21swapper/008:04:020
16754991510,3cyclictest0-21swapper/008:34:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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