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2026-09-24 - 05:06
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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 Thu Sep 24, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1538727249,18sleep00-21swapper/019:04:300
1549826955,9sleep10-21swapper/119:05:391
15890994510,34cyclictest23181-21ssh21:43:131
15890994210,31cyclictest0-21swapper/120:13:061
15890993811,26cyclictest29472-21diskmemload22:53:501
15890993610,25cyclictest0-21swapper/123:18:281
1589099350,8cyclictest17044-21grep20:33:051
1589099340,5cyclictest6969-21ssh23:42:591
15889993410,22cyclictest0-21swapper/022:05:210
15890993310,22cyclictest0-21swapper/121:09:431
15890993210,21cyclictest0-21swapper/100:07:551
15890993110,21cyclictest0-21swapper/100:23:021
15889993110,2cyclictest0-21swapper/022:59:530
15890993010,14cyclictest0-21swapper/123:30:181
15890993010,14cyclictest0-21swapper/123:30:181
1589099294,5cyclictest0-21swapper/121:28:111
15890992929,0cyclictest0-21swapper/122:38:221
1589099292,5cyclictest0-21swapper/119:13:051
15890992910,18cyclictest0-21swapper/123:39:541
15890992910,18cyclictest0-21swapper/121:48:501
1589099290,3cyclictest15084-21ssh22:18:381
1589099290,0cyclictest0-21swapper/123:23:061
1589099287,6cyclictest15701-1kworker/1:2H22:52:491
15890992813,13cyclictest31543-21ssh00:20:331
15890992810,17cyclictest0-21swapper/121:25:191
15889992828,0cyclictest0-21swapper/021:46:330
15889992827,1cyclictest0-21swapper/022:45:450
1589099272,4cyclictest167-21systemd-journal20:03:321
1589099271,9cyclictest27038-21grep22:37:491
1589099270,6cyclictest0-21swapper/123:35:451
1589099270,6cyclictest0-21swapper/121:38:381
15889992725,1cyclictest18163-21ssh22:23:090
1589099263,6cyclictest0-21swapper/123:58:051
1589099263,22cyclictest0-21swapper/120:23:001
1589099262,7cyclictest0-21swapper/121:13:001
15890992618,8cyclictest15313-21apache222:11:421
1589099261,5cyclictest0-21swapper/121:36:171
15890992610,15cyclictest0-21swapper/121:54:571
1589099252,22cyclictest0-21swapper/123:03:071
15890992517,3cyclictest231ktimersoftd/119:08:191
1589099251,6cyclictest0-21swapper/120:58:091
15890992510,14cyclictest0-21swapper/100:32:361
1589099250,7cyclictest0-21swapper/123:48:011
1589099250,6cyclictest0-21swapper/122:16:571
1588999251,22cyclictest28265-21ssh21:51:430
15890992421,3cyclictest0-21swapper/119:51:131
15890992412,5cyclictest19761-21/usr/sbin/munin19:18:091
1589099241,22cyclictest26369-21proc_pri19:33:081
15890992410,7cyclictest0-21swapper/122:02:011
15890992410,11cyclictest0-21swapper/120:28:521
15889992424,0cyclictest0-21swapper/021:19:590
15889992421,2cyclictest13722-21ssh23:04:060
1588999240,23cyclictest0-21swapper/023:34:090
15890992321,1cyclictest0-21swapper/119:28:091
15890992310,5cyclictest0-21swapper/121:18:141
15889992310,5cyclictest0-21swapper/021:33:060
1588999230,2cyclictest15003-21open_files20:28:090
15890992220,1cyclictest0-21swapper/119:23:001
15890992211,10cyclictest22969-21ssh00:06:281
15890992210,5cyclictest0-21swapper/119:43:111
15889992221,1cyclictest636-21nscd00:10:050
15889992221,0cyclictest81ktimersoftd/022:52:590
15889992210,7cyclictest0-21swapper/023:56:590
1588999220,21cyclictest20669-21ssh21:40:220
1588999220,12cyclictest745-21watchprog-snmpd21:13:110
674322110,0sleep00-21swapper/023:42:480
1589099214,14cyclictest0-21swapper/119:53:071
1589099213,5cyclictest0-21swapper/123:13:021
1589099212,1cyclictest0-21swapper/122:04:261
15890992113,7cyclictest28241-21pmu-power19:38:091
15890992110,7cyclictest0-21swapper/123:57:031
15890992110,6cyclictest0-21swapper/100:33:021
15889992120,1cyclictest15336-21apache200:17:200
15889992110,7cyclictest100250irq/107-eth1-rx21:07:520
15889992110,5cyclictest0-21swapper/022:28:540
1588999210,16cyclictest100150irq/106-eth1-rx22:38:010
1589099205,10cyclictest0-21swapper/121:03:031
15890992010,4cyclictest0-21swapper/122:28:071
15890992010,4cyclictest0-21swapper/100:12:591
1588999205,9cyclictest0-21swapper/019:08:050
1588999205,10cyclictest0-21swapper/023:08:060
1588999204,4cyclictest0-21swapper/019:53:070
1588999203,9cyclictest0-21swapper/000:03:100
1588999202,8cyclictest0-21swapper/020:43:030
1588999202,17cyclictest0-21swapper/023:43:090
15889992010,6cyclictest0-21swapper/021:31:230
15889992010,6cyclictest0-21swapper/021:02:340
15889992010,5cyclictest0-21swapper/023:52:350
15889992010,5cyclictest0-21swapper/020:18:040
15889992010,4cyclictest0-21swapper/022:33:010
15889992010,4cyclictest0-21swapper/021:54:470
15889992010,4cyclictest0-21swapper/000:29:310
15889992010,3cyclictest0-21swapper/023:58:100
15889992010,1cyclictest0-21swapper/020:52:490
3051721910,0sleep10-21swapper/122:42:491
1588999193,9cyclictest30101-21ntp_kernel_pll_19:43:090
1588999193,9cyclictest0-21swapper/022:08:490
15889991911,3cyclictest10050irq/110-ahci[0022:13:490
1588999191,10cyclictest8300-21hddtemp_smartct21:23:030
15889991910,8cyclictest0-21swapper/020:33:450
15889991910,7cyclictest0-21swapper/019:23:010
15889991910,6cyclictest0-21swapper/000:37:370
15889991910,5cyclictest0-21swapper/000:24:270
15889991910,4cyclictest0-21swapper/020:03:090
1588999190,4cyclictest0-21swapper/000:22:080
1588999190,1cyclictest0-21swapper/020:24:420
1589099184,12cyclictest0-21swapper/122:23:021
15890991817,1cyclictest802-21apache220:54:551
15890991814,3cyclictest0-21swapper/123:11:311
15890991811,5cyclictest0-21swapper/122:58:011
15890991810,7cyclictest10388-21/usr/sbin/munin20:18:061
1588999183,6cyclictest0-21swapper/019:13:100
1588999183,11cyclictest0-21swapper/023:23:050
15889991817,1cyclictest0-21swapper/022:20:380
15889991810,4cyclictest0-21swapper/023:29:510
15889991810,4cyclictest0-21swapper/023:29:510
15889991810,4cyclictest0-21swapper/021:58:100
15889991810,1cyclictest0-21swapper/019:33:020
1589099176,2cyclictest22164-21/usr/sbin/munin20:48:031
15890991710,5cyclictest0-21swapper/120:47:001
15890991710,2cyclictest0-21swapper/119:57:561
1588999173,8cyclictest0-21swapper/020:53:080
15889991716,1cyclictest15313-21apache220:42:250
15889991714,1cyclictest15887-21cyclictest22:49:250
15889991712,3cyclictest15336-21apache223:21:140
15889991710,3cyclictest0-21swapper/023:15:210
15889991710,3cyclictest0-21swapper/019:19:000
1589099162,8cyclictest0-21swapper/120:08:071
1589099162,10cyclictest0-21swapper/120:38:011
1588999165,8cyclictest0-21swapper/021:03:070
1588999165,7cyclictest0-21swapper/020:08:030
1588999164,6cyclictest0-21swapper/019:58:110
15889991610,4cyclictest0-21swapper/019:38:020
15889991610,0cyclictest0-21swapper/019:28:390
1588999152,5cyclictest9140-21ls20:13:070
15889991510,2cyclictest0-21swapper/019:48:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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