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2026-03-26 - 01:03
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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 rackcslot4.osadl.org (updated Wed Mar 25, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2529682246206,26sleep00-21swapper/007:08:420
2528302238196,28sleep10-21swapper/107:07:171
179699590,5rtkit-daemon1795-21rtkit-daemon10:00:461
179699580,3rtkit-daemon0-21swapper/011:33:411
179699560,4rtkit-daemon1795-21rtkit-daemon10:20:440
2830042550,4sleep0283007-21unixbench-2d08:20:250
253210995316,14cyclictest323551-21/usr/sbin/munin09:40:010
253210995310,13cyclictest263525-21systemd-run07:35:000
179699530,3rtkit-daemon0-21swapper/011:47:150
253210995211,10cyclictest279658-21munin-run08:15:000
179699520,3rtkit-daemon0-21swapper/011:41:030
179699520,3rtkit-daemon0-21swapper/011:28:050
253210995115,14cyclictest294492-21taskset08:50:240
253210995112,11cyclictest301692-21diskmemload11:35:130
253210995012,14cyclictest382629-21ssh11:01:230
253210995011,11cyclictest426505-21apt-get12:05:130
253210994916,11cyclictest317084-21ssh09:30:200
253210994913,13cyclictest440893-21apt-get12:25:140
253210994912,13cyclictest288235-21sed08:35:180
253210994912,12cyclictest301692-21diskmemload11:20:120
253210994911,13cyclictest347381-21ssh10:12:470
253210994911,12cyclictest299917-21apt-get09:05:270
253210994910,12cyclictest447838-21apt-get12:35:110
253210994910,12cyclictest422867-21sed12:00:020
179699490,4rtkit-daemon1795-21rtkit-daemon10:48:570
179699490,4rtkit-daemon1795-21rtkit-daemon10:43:030
179699490,3rtkit-daemon0-21swapper/010:16:180
179699490,1rtkit-daemon1795-21rtkit-daemon08:40:110
253213994811,8cyclictest26-21ksoftirqd/111:05:011
253210994814,11cyclictest301692-21diskmemload10:00:220
253210994813,14cyclictest0-21swapper/009:10:380
253210994812,11cyclictest301692-21diskmemload10:30:160
253210994812,11cyclictest301692-21diskmemload10:05:240
253210994810,12cyclictest3116382sleep009:22:180
179699480,3rtkit-daemon1795-21rtkit-daemon12:03:120
179699480,3rtkit-daemon0-21swapper/011:32:180
253210994715,11cyclictest298231-21sh09:00:220
253210994714,12cyclictest393510-21ssh11:17:210
253210994714,12cyclictest267358-21taskset07:43:510
253210994713,13cyclictest365085-21taskset10:37:320
253210994713,13cyclictest330804-21chrt09:50:030
253210994713,13cyclictest292740-21grep08:45:250
253210994713,12cyclictest260261-21/usr/sbin/munin07:25:160
253210994712,11cyclictest387837-21apt-get11:10:120
253210994711,15cyclictest328102-21awk09:45:230
253210994711,15cyclictest276483-21grep08:05:200
253210994711,11cyclictest433809-21apt-get12:15:130
253210994711,10cyclictest301692-21diskmemload12:20:170
253210994710,12cyclictest377238-21latency_hist10:55:020
179699470,1rtkit-daemon1795-21rtkit-daemon08:55:530
25321099469,11cyclictest444306-21apt-get12:30:130
253210994613,12cyclictest416473-21/usr/sbin/munin11:50:180
253210994612,14cyclictest385319-21/usr/sbin/munin11:05:230
253210994612,13cyclictest307183-21ssh09:15:380
253210994610,14cyclictest267819-21expr07:45:140
253210994610,13cyclictest355805-21apt-get10:25:130
4324722450,3sleep00-21swapper/012:12:260
253210994513,12cyclictest257824-21taskset07:20:040
253210994512,13cyclictest285869-21cstates08:30:140
253210994511,12cyclictest272625-21sed07:55:190
253210994510,13cyclictest254020-21grep07:10:190
253210994510,12cyclictest312919-21apt-get09:25:120
179699450,4rtkit-daemon1795-21rtkit-daemon09:59:340
179699450,4rtkit-daemon1795-21rtkit-daemon07:35:070
253210994411,12cyclictest378979-21rm10:56:090
25321099439,20cyclictest2854972sleep008:29:540
253210994324,11cyclictest323799-21apt-get09:40:100
253210994311,12cyclictest275604-21runrttasks08:04:040
253213994211,7cyclictest26-21ksoftirqd/110:55:011
179699420,1rtkit-daemon1795-21rtkit-daemon08:38:311
253210994110,11cyclictest256028-21cat07:15:160
253210994110,11cyclictest256028-21cat07:15:150
179699410,4rtkit-daemon1795-21rtkit-daemon07:29:021
25321399404,9cyclictest405360-21apt-get11:35:131
179699390,4rtkit-daemon1795-21rtkit-daemon12:24:281
25321099389,9cyclictest270197-21seq07:50:160
253210993824,7cyclictest279849-21apt-get08:15:120
179699370,4rtkit-daemon424419-21ssh12:00:331
25321399369,8cyclictest26-21ksoftirqd/109:50:121
25321399365,7cyclictest26-21ksoftirqd/111:20:121
25321399363,8cyclictest384251-21apt-get11:05:131
179699360,3rtkit-daemon0-21swapper/011:47:411
179699360,3rtkit-daemon0-21swapper/010:38:461
179699350,3rtkit-daemon0-21swapper/010:13:441
25321399346,10cyclictest26-21ksoftirqd/108:30:251
25321399341,9cyclictest26-21ksoftirqd/111:50:141
179699340,3rtkit-daemon0-21swapper/011:57:121
179699340,3rtkit-daemon0-21swapper/010:33:011
25321399333,11cyclictest253337-21/usr/sbin/munin07:10:231
25321399332,4cyclictest26-21ksoftirqd/107:20:011
25321399332,4cyclictest26-21ksoftirqd/107:20:001
25321399331,8cyclictest26-21ksoftirqd/111:00:001
253213993313,4cyclictest26-21ksoftirqd/109:47:051
179699330,3rtkit-daemon0-21swapper/010:18:201
25321399325,9cyclictest26-21ksoftirqd/109:28:201
25321399322,6cyclictest26-21ksoftirqd/112:30:181
25321399317,8cyclictest26-21ksoftirqd/112:17:511
25321399317,8cyclictest26-21ksoftirqd/111:10:131
25321399316,7cyclictest26-21ksoftirqd/109:40:171
253213993114,5cyclictest26-21ksoftirqd/108:55:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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