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2026-04-02 - 01:37
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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 Apr 01, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20205642271186,28sleep00-21swapper/007:05:020
20221262260187,58sleep10-21swapper/107:06:471
213856221560,1sleep10-21swapper/110:41:561
179699560,4rtkit-daemon1795-21rtkit-daemon11:31:340
179699560,3rtkit-daemon1795-21rtkit-daemon09:40:221
21205512550,4sleep10-21swapper/110:16:311
179699550,5rtkit-daemon1795-21rtkit-daemon10:19:160
179699540,4rtkit-daemon1795-21rtkit-daemon12:31:410
179699530,4rtkit-daemon1795-21rtkit-daemon10:03:380
179699520,4rtkit-daemon1795-21rtkit-daemon09:56:340
179699520,3rtkit-daemon1795-21rtkit-daemon07:25:301
179699510,3rtkit-daemon1795-21rtkit-daemon11:56:211
179699490,3rtkit-daemon1795-21rtkit-daemon09:04:051
21252982420,5sleep00-21swapper/010:24:020
179699400,5rtkit-daemon2198941-21taskset12:07:100
21679602390,2sleep00-21swapper/011:24:570
179699370,6rtkit-daemon2041429-21runrttasks07:52:200
179699370,5rtkit-daemon2075339-21ssh09:15:021
179699370,3rtkit-daemon1795-21rtkit-daemon09:00:160
179699360,3rtkit-daemon0-21swapper/111:54:531
179699360,3rtkit-daemon0-21swapper/107:56:100
179699350,3rtkit-daemon0-21swapper/108:39:500
179699340,4rtkit-daemon1795-21rtkit-daemon12:23:080
179699340,4rtkit-daemon1795-21rtkit-daemon12:19:310
179699340,4rtkit-daemon1795-21rtkit-daemon12:03:001
179699340,3rtkit-daemon0-21swapper/109:47:350
179699340,3rtkit-daemon0-21swapper/109:15:200
179699340,3rtkit-daemon0-21swapper/107:40:400
179699340,3rtkit-daemon0-21swapper/012:35:441
179699340,3rtkit-daemon0-21swapper/012:24:041
179699340,3rtkit-daemon0-21swapper/011:07:511
179699340,3rtkit-daemon0-21swapper/008:29:441
179699340,3rtkit-daemon0-21swapper/007:22:401
179699330,4rtkit-daemon1795-21rtkit-daemon07:11:130
179699330,3rtkit-daemon0-21swapper/011:15:511
179699330,3rtkit-daemon0-21swapper/010:53:501
179699330,3rtkit-daemon0-21swapper/010:38:381
179699330,3rtkit-daemon0-21swapper/010:10:401
179699330,3rtkit-daemon0-21swapper/009:49:491
179699330,3rtkit-daemon0-21swapper/008:33:591
2022544993228,2cyclictest2139769-21kworker/0:211:00:370
179699320,4rtkit-daemon1795-21rtkit-daemon07:45:451
179699320,3rtkit-daemon1795-21rtkit-daemon11:47:521
179699320,3rtkit-daemon1795-21rtkit-daemon10:47:340
179699320,3rtkit-daemon1795-21rtkit-daemon08:25:400
179699320,3rtkit-daemon0-21swapper/111:48:130
179699320,3rtkit-daemon0-21swapper/107:48:180
179699320,3rtkit-daemon0-21swapper/010:45:051
179699320,3rtkit-daemon0-21swapper/010:03:581
179699320,3rtkit-daemon0-21swapper/009:56:481
2022550993128,2cyclictest66950irq/132-enp2s012:31:571
179699310,3rtkit-daemon1795-21rtkit-daemon12:35:360
179699310,3rtkit-daemon1795-21rtkit-daemon10:55:290
179699310,3rtkit-daemon1795-21rtkit-daemon08:52:240
179699310,3rtkit-daemon0-21swapper/111:59:170
179699310,3rtkit-daemon0-21swapper/011:10:371
202255099303,19cyclictest2111276-21apt-get10:05:151
2022550993026,3cyclictest66950irq/132-enp2s011:32:451
179699300,3rtkit-daemon0-21swapper/010:22:471
179699300,3rtkit-daemon0-21swapper/008:55:261
179699290,4rtkit-daemon1795-21rtkit-daemon12:02:530
179699290,3rtkit-daemon1795-21rtkit-daemon09:31:411
179699290,3rtkit-daemon1795-21rtkit-daemon08:32:130
179699290,3rtkit-daemon0-21swapper/109:31:470
179699290,3rtkit-daemon0-21swapper/008:53:481
2022550992824,3cyclictest2193096-1kworker/1:2H12:25:261
2022550992813,10cyclictest2168246-21apt-get11:25:141
202254499288,7cyclictest13-21ksoftirqd/010:54:570
2022544992812,9cyclictest2052093-21apt-get08:20:130
202254499280,5cyclictest0-21swapper/010:35:210
179699280,3rtkit-daemon0-21swapper/107:24:300
179699280,3rtkit-daemon0-21swapper/010:33:021
202255099272,19cyclictest2200719-21apt-get12:10:131
2022550992710,11cyclictest2204174-21apt-get12:15:141
202254499270,8cyclictest21699392sh11:26:130
2022550992611,11cyclictest2026162-21sed07:15:281
202255099260,6cyclictest0-21swapper/107:58:551
2022544992611,9cyclictest2043868-21apt-get08:00:140
179699260,3rtkit-daemon0-21swapper/108:09:320
179699260,1rtkit-daemon1795-21rtkit-daemon08:59:400
179699260,1rtkit-daemon1795-21rtkit-daemon08:07:261
202255099255,12cyclictest2071705-21apt-get09:10:141
202255099250,6cyclictest0-21swapper/108:03:321
2022544992519,5cyclictest13-21ksoftirqd/009:30:010
2022544992516,6cyclictest2162115-21open_inodes11:15:220
179699250,20rtkit-daemon2022539-21cyclictest10:59:191
202255099243,13cyclictest2150735-21apt-get11:00:141
202255099241,19cyclictest2071425-21diskmemload09:50:131
202255099240,7cyclictest2182538-21grep11:45:011
202255099240,6cyclictest0-21swapper/107:51:111
202254499249,9cyclictest2136555-21apt-get10:40:130
202254499242,16cyclictest2179252-21apt-get11:40:120
179699240,1rtkit-daemon1795-21rtkit-daemon12:13:080
179699240,14rtkit-daemon0-21swapper/112:07:371
202255099235,12cyclictest2034022-21apt-get07:35:161
202255099232,15cyclictest2069678-21apt-get09:05:131
202255099232,14cyclictest2175392-21apt-get11:35:121
202255099232,14cyclictest2061862-21apt-get08:45:121
2022550992311,7cyclictest66950irq/132-enp2s011:20:121
2022550992311,7cyclictest66950irq/132-enp2s009:35:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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