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2026-09-01 - 11:04
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Tue Sep 01, 2026 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159729911677,26cyclictest26-21ksoftirqd/123:20:121
159729911477,25cyclictest26-21ksoftirqd/122:05:161
159729911273,27cyclictest26-21ksoftirqd/121:45:241
159729910562,32cyclictest26-21ksoftirqd/122:50:121
159729910464,28cyclictest26-21ksoftirqd/121:10:121
159729910259,33cyclictest26-21ksoftirqd/120:30:121
159729910159,30cyclictest26-21ksoftirqd/122:40:141
159729910159,30cyclictest26-21ksoftirqd/122:40:131
159729910154,35cyclictest26-21ksoftirqd/123:50:241
159729910154,35cyclictest26-21ksoftirqd/123:50:241
159709910113,75cyclictest0-21swapper/020:55:120
15970991007,80cyclictest6968-21apt-get21:45:250
15972999954,32cyclictest26-21ksoftirqd/123:25:141
1597099988,77cyclictest30151-21apt-get00:25:140
15970999813,72cyclictest0-21swapper/019:25:130
15970999713,74cyclictest0-21swapper/020:50:150
15972999613,68cyclictest0-21swapper/123:05:121
15972999611,65cyclictest0-21swapper/123:40:121
15970999611,72cyclictest0-21swapper/020:00:160
1540329614,33sleep10-21swapper/119:05:581
1540329614,33sleep10-21swapper/119:05:581
15970999510,27cyclictest0-21swapper/022:05:150
15972999446,33cyclictest26-21ksoftirqd/120:10:141
15972999413,62cyclictest0-21swapper/121:40:121
15972999412,61cyclictest0-21swapper/120:45:131
15972999411,63cyclictest0-21swapper/119:25:141
15970999413,70cyclictest0-21swapper/023:30:120
1597299939,69cyclictest0-21swapper/120:15:121
15972999342,33cyclictest26-21ksoftirqd/100:25:151
15972999341,33cyclictest26-21ksoftirqd/123:15:121
15972999312,63cyclictest0-21swapper/119:45:141
15970999316,66cyclictest0-21swapper/019:30:220
1597299929,63cyclictest0-21swapper/123:55:251
1597299927,67cyclictest19496-21seq20:50:121
15972999211,60cyclictest0-21swapper/121:30:131
155922927,73sleep00-21swapper/019:07:590
155922927,73sleep00-21swapper/019:07:590
15972999113,60cyclictest0-21swapper/122:35:131
15972999112,61cyclictest0-21swapper/119:15:111
15972999112,61cyclictest0-21swapper/100:35:261
15972999111,60cyclictest0-21swapper/123:10:121
15972999110,62cyclictest0-21swapper/123:45:111
15972999036,40cyclictest562-21runrttasks21:50:121
15972999013,26cyclictest0-21swapper/120:25:121
15972998937,31cyclictest26-21ksoftirqd/121:25:141
15972998910,60cyclictest0-21swapper/120:05:121
1597299887,60cyclictest464-21avahi-daemon21:05:141
15972998839,36cyclictest0-21swapper/121:35:251
15972998812,56cyclictest0-21swapper/100:20:121
15972998812,56cyclictest0-21swapper/100:20:121
15972998810,59cyclictest0-21swapper/121:15:141
15970998812,63cyclictest0-21swapper/020:30:130
15970998811,24cyclictest0-21swapper/021:55:160
1597299877,53cyclictest30888-21sshd19:50:151
1597299876,56cyclictest8986-21taskset20:20:131
15972998711,56cyclictest0-21swapper/100:30:141
15972998711,56cyclictest0-21swapper/100:30:141
1597099879,26cyclictest0-21swapper/020:45:150
1597299867,54cyclictest10455-21sshd21:55:151
1597099863,46cyclictest23527-21unixbench-2d00:00:360
15972998534,35cyclictest0-21swapper/122:25:151
15972998510,55cyclictest0-21swapper/123:35:131
15970998538,13cyclictest243-21systemd-journal22:41:400
15970998538,13cyclictest243-21systemd-journal22:41:400
15970998511,24cyclictest0-21swapper/022:55:130
1597299846,51cyclictest31495-21runrttasks22:55:131
15972998433,32cyclictest0-21swapper/122:30:141
15970998424,17cyclictest5829-21sort21:40:350
15970998419,15cyclictest7680-21sendmail23:20:000
1597299836,54cyclictest0-21swapper/121:20:121
1597099836,44cyclictest0-21swapper/019:15:340
1597099835,43cyclictest0-21swapper/020:15:270
15970998333,36cyclictest14-21ksoftirqd/000:15:110
1597299818,52cyclictest0-21swapper/119:55:161
1597299818,52cyclictest0-21swapper/119:55:161
15972998126,35cyclictest0-21swapper/119:20:131
1597099817,23cyclictest2562-21apt-get23:05:150
1597099816,42cyclictest0-21swapper/019:20:190
15970998127,18cyclictest3691-21apt-get20:05:120
15972998035,27cyclictest0-21swapper/122:00:101
15972998035,27cyclictest0-21swapper/122:00:101
1597099805,43cyclictest0-21swapper/021:35:250
1597099805,43cyclictest0-21swapper/019:10:360
1597099803,18cyclictest20235-21apt-get23:55:140
15970998029,12cyclictest0-21swapper/019:35:200
15972997926,32cyclictest0-21swapper/120:00:131
15972997925,30cyclictest0-21swapper/122:20:131
1597099796,36cyclictest0-21swapper/022:35:280
1597099772,19cyclictest28792-21runrttasks19:43:090
15972997612,45cyclictest0-21swapper/120:35:131
1597099765,43cyclictest0-21swapper/000:10:120
1597099763,36cyclictest2666-21http21:35:010
1597099762,20cyclictest10654-21unixbench_multi23:25:360
15972997511,44cyclictest0-21swapper/123:30:141
15970997521,18cyclictest7085-21cut20:15:010
15970997412,11cyclictest243-21systemd-journal00:21:580
15970997412,11cyclictest243-21systemd-journal00:21:580
1597099738,19cyclictest8982-21apt-get20:20:130
1597099732,11cyclictest26349-21diskmemload21:10:290
1597299720,51cyclictest0-21swapper/119:10:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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