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2026-06-13 - 23:20
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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 Sat Jun 13, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27386342325282,29sleep00-21swapper/007:08:310
27387562273209,50sleep10-21swapper/107:09:491
28151192870,1chrt2813930-21/usr/sbin/munin09:45:240
273894799752,44cyclictest2882436-21apt-get11:20:130
179699670,3rtkit-daemon1795-21rtkit-daemon10:42:411
179699650,4rtkit-daemon1795-21rtkit-daemon12:10:121
273894799641,32cyclictest2904264-21apt-get11:50:210
179699630,4rtkit-daemon1795-21rtkit-daemon11:47:180
179699620,4rtkit-daemon0-21swapper/009:34:431
179699610,4rtkit-daemon1795-21rtkit-daemon09:14:070
179699600,5rtkit-daemon1795-21rtkit-daemon12:20:020
179699600,4rtkit-daemon1795-21rtkit-daemon12:32:300
273894799591,38cyclictest2886037-21apt-get11:25:130
273894799581,40cyclictest2915267-21/usr/sbin/munin12:05:270
273894799581,29cyclictest2761535-21sed08:05:010
273894799580,31cyclictest2795778-21/usr/sbin/munin09:20:240
273894799575,23cyclictest2809522-21latency_hist09:40:010
273894799572,36cyclictest2817659-21apt-get09:50:140
273894799570,27cyclictest2892956-21date11:35:010
179699570,3rtkit-daemon1795-21rtkit-daemon11:57:270
273894799551,32cyclictest2830262-21ssh10:06:230
273894799551,29cyclictest2918950-21apt-get12:10:120
273894799551,29cyclictest2871589-21apt-get11:05:130
273894799550,37cyclictest2821126-21apt-get09:55:110
273894799541,40cyclictest2858557-21ssh10:45:300
273894799541,38cyclictest2786830-21diskmemload11:44:080
273894799541,37cyclictest2806206-21apt-get09:35:120
273894799541,36cyclictest2867915-21apt-get11:00:140
273894799541,36cyclictest2867915-21apt-get11:00:140
2738947995411,21cyclictest850-21runrttasks09:29:550
273894799535,29cyclictest2780608-21seq08:51:230
273894799531,38cyclictest2839866-21/usr/sbin/munin10:20:210
273894799531,37cyclictest2786830-21diskmemload09:17:230
273894799531,35cyclictest2832037-21apt-get10:10:130
2738947995311,29cyclictest2924221-21sh12:16:000
273894799530,7cyclictest2745669-21ls07:25:150
273894799530,32cyclictest2938078-21sed12:35:230
273894799530,31cyclictest2766664-21/usr/sbin/munin08:15:240
273894799530,30cyclictest2845330-21taskset10:28:210
273894799527,27cyclictest2912166-21cat12:00:180
273894799521,26cyclictest2751259-21systemd-run07:40:000
2738947995212,29cyclictest2896325-21sh11:39:470
2738947995212,28cyclictest2827807-21sh10:04:030
273894799520,2cyclictest2876197-21uname11:10:230
273894799520,1cyclictest2786830-21diskmemload10:55:150
273894799518,26cyclictest2775094-21sendmail08:40:000
273894799511,39cyclictest2863167-21ssh10:52:420
273894799511,37cyclictest2751526-21grep07:40:150
273894799511,29cyclictest2744854-21/usr/sbin/munin07:20:270
273894799511,28cyclictest2782405-21/usr/sbin/munin08:55:250
273894799510,8cyclictest2755510-21taskset07:49:540
273894799506,32cyclictest2854812-21cat10:40:260
273894799501,32cyclictest2853058-21ssh10:39:200
273894799501,30cyclictest2763011-21taskset08:06:320
273894799501,29cyclictest2749074-21taskset07:33:490
273894799501,27cyclictest2836081-21ssh10:15:170
273894799501,26cyclictest2879232-21/usr/sbin/munin11:15:180
2738947995011,28cyclictest2847777-21sh10:30:350
273894799500,30cyclictest2755702-21taskset07:50:020
273894799491,30cyclictest2740706-21taskset07:14:100
273894799490,27cyclictest2931988-21taskset12:27:010
179699490,3rtkit-daemon1795-21rtkit-daemon10:02:051
273894799485,27cyclictest2802599-21cpuspeed_turbos09:30:150
273894799485,25cyclictest2775486-21expr08:40:160
273894799484,29cyclictest2784774-21seq09:04:010
273894799483,26cyclictest2771028-21seq08:28:260
273894799481,28cyclictest27729092sleep008:32:410
273894799480,7cyclictest2785539-21/usr/sbin/munin09:05:200
273894799471,28cyclictest2759104-21taskset07:56:390
273894799470,33cyclictest2763892-21fw_packets08:10:160
273894799460,7cyclictest2742904-21taskset07:15:410
273894799451,32cyclictest2767990-21irqstats08:20:190
273894799440,6cyclictest2778697-21seq08:46:470
179699430,4rtkit-daemon1795-21rtkit-daemon08:50:081
29273362400,4chrt0-21swapper/112:20:241
179699390,5rtkit-daemon1346004-21snapd08:22:341
179699360,4rtkit-daemon1795-21rtkit-daemon10:06:051
179699360,3rtkit-daemon0-21swapper/109:01:101
179699350,4rtkit-daemon1795-21rtkit-daemon10:12:451
179699340,4rtkit-daemon2860075-21ssh10:48:581
179699340,3rtkit-daemon0-21swapper/111:16:191
179699340,3rtkit-daemon0-21swapper/109:43:261
179699340,3rtkit-daemon0-21swapper/011:57:061
179699340,3rtkit-daemon0-21swapper/009:39:231
179699340,3rtkit-daemon0-21swapper/009:14:291
2738949993326,5cyclictest2786894-21date09:10:001
179699330,4rtkit-daemon1795-21rtkit-daemon11:13:111
179699330,3rtkit-daemon1795-21rtkit-daemon10:16:261
179699330,3rtkit-daemon0-21swapper/108:01:351
179699330,3rtkit-daemon0-21swapper/107:58:351
179699330,3rtkit-daemon0-21swapper/107:52:351
179699330,3rtkit-daemon0-21swapper/107:48:341
179699320,4rtkit-daemon1795-21rtkit-daemon07:42:411
179699320,3rtkit-daemon1795-21rtkit-daemon11:03:081
179699320,3rtkit-daemon1795-21rtkit-daemon11:03:081
179699320,3rtkit-daemon0-21swapper/108:09:561
179699320,3rtkit-daemon0-21swapper/011:31:011
179699320,3rtkit-daemon0-21swapper/011:26:411
179699320,3rtkit-daemon0-21swapper/011:05:231
179699320,3rtkit-daemon0-21swapper/009:24:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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