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2026-06-04 - 10:46
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot6.osadl.org (updated Thu Jun 04, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
230821580,4sleep2805599cyclictest01:55:442
106891980,3ptp4l401ktimersoftd/320:44:193
14992770,2sleep20-21swapper/200:15:152
7022690,3sleep125-21ksoftirqd/100:46:291
106891680,1ptp4l401ktimersoftd/323:50:423
166172660,2sleep20-21swapper/223:23:352
231962620,2sleep10-21swapper/100:03:291
77112614,10sleep20-21swapper/220:43:082
181122610,3sleep3401ktimersoftd/323:58:053
804499606,13cyclictest11918-21apt-config00:26:070
804499598,12cyclictest3382-21cut01:56:250
8044995910,11cyclictest31972-21ssh01:51:330
804499578,11cyclictest30500-21ssh00:11:220
804499569,11cyclictest19410-21wc02:11:380
804499568,11cyclictest30359-21cat01:16:360
804499561,7cyclictest0-21swapper/001:21:350
804499561,7cyclictest0-21swapper/001:21:350
8044995610,11cyclictest5361-21sed00:51:270
804499559,17cyclictest4978-21ssh23:45:390
804499559,17cyclictest4978-21ssh23:45:390
804499558,14cyclictest18646-21grep23:26:190
804499556,17cyclictest22838-21/usr/sbin/munin22:56:260
804499556,13cyclictest32582-21irqrtprio00:46:250
804499555,18cyclictest31581-21fschecks_count23:06:190
804499555,12cyclictest28154-21grep21:46:190
804499555,12cyclictest15540-21cat01:36:090
264452550,3sleep10-21swapper/123:01:181
106891550,1ptp4l401ktimersoftd/302:11:463
804499549,18cyclictest15435-21ssh01:01:300
804499547,12cyclictest4197-21grep00:16:350
804499547,12cyclictest23247-21wc21:31:020
804499545,12cyclictest9574-21grep00:56:230
106891540,1ptp4l401ktimersoftd/323:26:013
804499539,8cyclictest22394-21ssh00:36:210
804499538,12cyclictest27013-21sendmail_mailqu01:46:310
804499538,11cyclictest25561-21wc01:11:370
804499538,10cyclictest13430-21hddtemp_smartct02:06:260
804499537,17cyclictest19871-21ssh01:40:270
804499536,13cyclictest24286-21irqrtprio23:31:240
804499534,13cyclictest0-21swapper/022:36:190
150372530,2sleep20-21swapper/222:46:382
804499528,11cyclictest4297-21gltestperf22:16:150
804499528,10cyclictest13736-21modprobe22:46:190
804499526,13cyclictest9040-21sed22:31:050
804499526,13cyclictest15847-21grep21:06:170
804499525,17cyclictest21099-21cat22:56:060
804499525,15cyclictest21711-21latency_hist00:36:080
804499525,12cyclictest10467-21cat23:51:180
804499524,14cyclictest18987-21/usr/sbin/munin01:06:360
8044995210,8cyclictest21698-21snmp_o5powerctl00:01:300
106891520,2ptp4l10740-21kworker/3:001:28:273
106891520,2ptp4l10740-21kworker/3:001:28:273
804499516,13cyclictest22488-21sed01:41:380
804499516,11cyclictest19940-21sed00:01:060
804499515,13cyclictest30977-21cat23:06:060
804499514,16cyclictest10236-21latency_hist23:51:060
804499514,12cyclictest25054-21latency21:36:170
804499514,11cyclictest12898-21sed22:46:050
804499513,12cyclictest0-21swapper/021:56:180
804499513,12cyclictest0-21swapper/021:56:180
804499509,10cyclictest13259-21mailstats20:56:200
804499504,12cyclictest20859-21latency_hist21:26:020
804499504,12cyclictest1008-21cpuspeed_turbos22:06:130
804499503,16cyclictest12392-21apt-get00:26:200
804499502,18cyclictest0-21swapper/023:21:170
8050994920,5cyclictest25-21ksoftirqd/123:51:361
8050994915,8cyclictest25-21ksoftirqd/122:41:051
804499496,12cyclictest8931-21irqrtprio02:01:280
804499496,12cyclictest6133-21cat01:26:210
804499496,12cyclictest6133-21cat01:26:210
804499495,12cyclictest6753-21sed22:26:050
804499493,12cyclictest0-21swapper/020:51:030
805099483,9cyclictest25-21ksoftirqd/101:56:211
804499487,18cyclictest23935-21sed21:36:030
804499486,18cyclictest8092-21date20:46:020
804499485,17cyclictest28586-21ssh23:36:200
804499484,14cyclictest27848-21ssh00:08:060
804499484,12cyclictest17346-21sed21:11:030
804499484,11cyclictest31433-21latency_hist00:46:080
804499482,20cyclictest0-21swapper/023:20:050
804499482,19cyclictest0-21swapper/022:06:040
8050994730,3cyclictest25-21ksoftirqd/100:11:341
8050994720,4cyclictest25-21ksoftirqd/123:11:061
8050994717,4cyclictest25-21ksoftirqd/121:06:031
804499477,8cyclictest14647-21munin-run21:06:030
804499472,18cyclictest0-21swapper/023:16:050
804499472,16cyclictest0-21swapper/020:46:300
804499466,8cyclictest19505-21/usr/sbin/munin21:16:250
293312460,2sleep229333-21ssh00:42:292
106891460,1ptp4l401ktimersoftd/300:22:243
8050994530,3cyclictest25-21ksoftirqd/100:36:291
8050994515,4cyclictest25-21ksoftirqd/100:26:071
8050994513,4cyclictest25-21ksoftirqd/101:06:081
804499455,16cyclictest3544-21latency_hist22:16:040
8050994418,4cyclictest25-21ksoftirqd/100:31:251
8050994418,4cyclictest25-21ksoftirqd/100:11:071
805099440,8cyclictest12748-21diskmemload01:21:361
805099440,8cyclictest12748-21diskmemload01:21:361
805099440,6cyclictest25-21ksoftirqd/121:56:031
805099440,6cyclictest25-21ksoftirqd/121:56:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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