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2026-03-06 - 21:40
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Fri Mar 06, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206173,22phc2sys0-21swapper/307:08:463
174632201169,22sleep00-21swapper/007:05:530
175832200168,21sleep10-21swapper/107:07:271
175522200165,24sleep20-21swapper/207:07:042
177892163125,13sleep10-21swapper/107:10:001
177892163125,13sleep10-21swapper/107:10:001
139391640,0ptp4l391rcuc/309:22:463
104292620,5sleep210430-21irqrtprio08:00:192
14952600,2sleep10-21swapper/107:40:241
14952600,2sleep10-21swapper/107:40:241
289512590,5sleep01808099cyclictest07:30:240
20722580,2sleep30-21swapper/311:05:173
1808399551,11cyclictest25599-21sshd11:54:113
18082995132,16cyclictest22595-21cron07:20:012
1808399506,6cyclictest18814-21irqrtprio09:25:193
1808399487,7cyclictest17143-21cstates08:15:133
112242480,2sleep10-21swapper/108:00:261
1808399470,10cyclictest8721-21grep09:05:163
237012460,2sleep20-21swapper/209:35:182
18080994539,3cyclictest28059-21turbostat.cron12:00:000
18083994336,4cyclictest3269-21cron08:55:013
1808199430,40cyclictest9389-21grep10:14:591
1808399421,7cyclictest6935-21meminfo09:00:213
18080994237,3cyclictest27285-21cron09:45:000
139391420,0ptp4l401ktimersoftd/309:36:093
139391420,0ptp4l401ktimersoftd/307:57:053
18083994134,4cyclictest32086-21cron07:40:003
1808399410,16cyclictest28747-21/usr/sbin/munin08:40:223
1808399410,16cyclictest28747-21/usr/sbin/munin08:40:213
139391410,0ptp4l401ktimersoftd/311:11:573
139391410,0ptp4l401ktimersoftd/309:14:153
134391410,1getstats0-21swapper/309:33:493
18083994034,4cyclictest14675-21sshd12:39:233
18082994035,3cyclictest33-21ksoftirqd/211:00:002
18082994029,9cyclictest33-21ksoftirqd/208:05:262
18082994027,11cyclictest33-21ksoftirqd/211:10:002
1808399390,14cyclictest2518-21gnome-shell11:15:593
18080993934,3cyclictest9-21ksoftirqd/011:00:000
1808099390,2cyclictest121rcu_preempt11:05:240
1808399384,11cyclictest14490-21/usr/sbin/munin08:10:173
1808399384,11cyclictest14490-21/usr/sbin/munin08:10:173
18082993832,3cyclictest33-21ksoftirqd/209:35:002
18080993834,2cyclictest9-21ksoftirqd/007:20:000
18080993833,3cyclictest9-21ksoftirqd/009:40:000
18082993731,4cyclictest33-21ksoftirqd/208:47:452
18081993730,4cyclictest25-21ksoftirqd/111:04:111
18081993730,4cyclictest25-21ksoftirqd/108:39:291
18080993733,2cyclictest551-21rs:main0
1808399360,8cyclictest10012-21diskstats10:15:143
18082993632,3cyclictest33-21ksoftirqd/207:55:182
18082993631,3cyclictest33-21ksoftirqd/212:20:002
18082993631,3cyclictest33-21ksoftirqd/207:35:002
18082993630,4cyclictest33-21ksoftirqd/207:49:282
18081993630,4cyclictest25-21ksoftirqd/112:36:301
18081993630,4cyclictest25-21ksoftirqd/108:20:401
18080993631,3cyclictest9-21ksoftirqd/011:40:000
18080993631,3cyclictest9-21ksoftirqd/010:10:000
18080993631,3cyclictest9-21ksoftirqd/008:55:140
18080993631,3cyclictest9-21ksoftirqd/007:35:180
18080993630,3cyclictest9-21ksoftirqd/011:00:190
18080993630,3cyclictest9-21ksoftirqd/008:10:130
18080993630,3cyclictest9-21ksoftirqd/008:10:130
18082993530,3cyclictest33-21ksoftirqd/208:40:172
18082993530,3cyclictest33-21ksoftirqd/208:40:172
18082993530,3cyclictest33-21ksoftirqd/208:30:002
18081993530,3cyclictest25-21ksoftirqd/107:34:551
18081993529,4cyclictest25-21ksoftirqd/112:11:151
18081993529,4cyclictest25-21ksoftirqd/112:11:141
18081993529,4cyclictest25-21ksoftirqd/111:39:321
18081993529,4cyclictest25-21ksoftirqd/109:15:561
18081993529,4cyclictest25-21ksoftirqd/108:57:351
18081993529,4cyclictest25-21ksoftirqd/108:50:101
18081993527,5cyclictest25-21ksoftirqd/110:43:091
18081993527,5cyclictest25-21ksoftirqd/110:43:091
18080993531,2cyclictest9-21ksoftirqd/010:00:000
18080993531,2cyclictest9-21ksoftirqd/008:30:200
18080993531,2cyclictest9-21ksoftirqd/007:20:190
18080993530,3cyclictest9-21ksoftirqd/010:50:000
18080993530,3cyclictest9-21ksoftirqd/010:25:010
18080993530,3cyclictest9-21ksoftirqd/010:05:000
18080993530,3cyclictest9-21ksoftirqd/009:50:180
18080993529,4cyclictest9-21ksoftirqd/010:30:110
18080993529,3cyclictest9-21ksoftirqd/011:20:010
1808099350,2cyclictest121rcu_preempt12:05:180
18083993428,4cyclictest41-21ksoftirqd/310:42:393
18083993428,4cyclictest41-21ksoftirqd/310:42:393
18083993428,4cyclictest41-21ksoftirqd/307:47:493
18083993428,3cyclictest41-21ksoftirqd/310:27:383
18083993428,3cyclictest41-21ksoftirqd/310:20:593
18082993430,2cyclictest33-21ksoftirqd/210:30:182
18082993429,3cyclictest33-21ksoftirqd/211:20:182
18082993429,3cyclictest33-21ksoftirqd/211:00:202
18082993429,3cyclictest33-21ksoftirqd/210:52:432
18082993429,3cyclictest33-21ksoftirqd/209:50:312
18082993428,4cyclictest33-21ksoftirqd/210:19:112
18082993428,4cyclictest33-21ksoftirqd/210:13:132
18082993428,4cyclictest33-21ksoftirqd/209:57:532
18082993428,4cyclictest33-21ksoftirqd/209:14:532
18082993428,4cyclictest33-21ksoftirqd/209:07:442
18082993428,4cyclictest33-21ksoftirqd/208:56:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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