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2026-01-08 - 17:05
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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 highest latencies:
System rackcslot4.osadl.org (updated Thu Jan 08, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303871523740,10sleep00-21swapper/007:05:160
30400492281221,46sleep10-21swapper/107:06:231
32138362770,4sleep10-21swapper/111:53:481
30698952750,1chrt3069894-21/usr/sbin/munin08:20:240
31370142680,4sleep10-21swapper/110:13:261
179699680,4rtkit-daemon1795-21rtkit-daemon11:00:061
32371822590,4sleep10-21swapper/112:24:151
31776252590,6sleep13177621-21unixbench-2d11:05:261
179699580,6rtkit-daemon1795-21rtkit-daemon09:44:041
304050999573,28cyclictest3203045-21apt-get11:40:131
304050999562,34cyclictest3153743-21apt-get10:35:131
304050999540,4cyclictest3181356-21/usr/sbin/munin11:10:221
179699540,4rtkit-daemon1795-21rtkit-daemon09:39:571
304050999532,33cyclictest3115674-21apt-get09:45:121
179699530,3rtkit-daemon1795-21rtkit-daemon10:32:251
304050999521,30cyclictest3133758-21rm10:09:321
179699520,4rtkit-daemon1795-21rtkit-daemon11:33:431
179699520,3rtkit-daemon1795-21rtkit-daemon12:07:031
179699520,3rtkit-daemon1795-21rtkit-daemon08:08:591
304050999510,3cyclictest0-21swapper/109:23:351
304050999510,2cyclictest3101187-21sh09:25:231
179699510,4rtkit-daemon1795-21rtkit-daemon07:13:261
304050999501,7cyclictest3045252-21apt-config07:20:021
304050999500,32cyclictest3137732-21apt-get10:15:061
304050999492,31cyclictest3184021-21apt-get11:15:101
3040509994911,18cyclictest3193349-21sh11:26:191
179699490,3rtkit-daemon1795-21rtkit-daemon10:59:011
304050999487,21cyclictest3149040-21sh10:28:271
304050999485,28cyclictest3087960-21diskmemload12:16:011
304050999481,25cyclictest3126388-21apt-get10:00:081
179699470,6rtkit-daemon3115674-21apt-get09:45:100
304050999461,31cyclictest3088232-21apt-get09:10:131
304050999461,30cyclictest3104061-21apt-get09:30:121
304050999461,30cyclictest3087960-21diskmemload12:39:261
304050999451,30cyclictest3238637-21ntp_states12:25:201
304050999451,29cyclictest3087960-21diskmemload10:43:481
304050999450,7cyclictest3167026-21sh10:50:311
179699450,12rtkit-daemon3191543-21apt-get11:25:110
304050999447,21cyclictest3095443-21sh09:18:461
304050999441,7cyclictest3145616-21ssh10:24:231
304050999441,29cyclictest3187942-21apt-get11:20:131
304050999438,19cyclictest3164970-21ssh10:49:111
304050999437,19cyclictest0-21swapper/112:30:341
304050999431,25cyclictest3221216-21ssh12:02:401
304050999421,8cyclictest3080160-21systemd-run08:50:001
304050999421,2cyclictest3199317-21apt-get11:35:131
304050999420,7cyclictest3124622-21sh09:56:411
304050999420,6cyclictest3209055-21ssh11:46:551
304050999411,8cyclictest3068570-21apt-config08:20:031
304050999411,8cyclictest3066037-21systemd-run08:15:001
304050999411,7cyclictest3122891-21sh09:53:201
304050999410,8cyclictest3229392-21ssh12:13:591
304050999410,3cyclictest30837132sleep108:56:471
304050999403,29cyclictest3051812-21apt-get07:35:121
304050999400,7cyclictest3217894-21sh11:58:481
304050999400,7cyclictest3071331-21ntpq08:25:211
304050999400,28cyclictest3048234-21perl07:25:181
304050999400,22cyclictest3074444-21/usr/sbin/munin08:35:151
304050999390,8cyclictest3077527-21timerandwakeup08:40:231
304050999390,6cyclictest3056568-21ntpq07:45:211
304050999390,5cyclictest3080333-21apt-get08:50:111
304050999381,3cyclictest3043013-21fschecks_count07:15:021
179699380,3rtkit-daemon0-21swapper/009:15:370
304050999372,28cyclictest3049866-21apt-get07:30:131
304050999370,3cyclictest3062435-21ntpq08:00:231
304050999370,3cyclictest3054766-21ps07:40:211
304050999370,2cyclictest3086198-21apt-get09:05:091
304050999370,2cyclictest3059672-21/usr/sbin/munin07:55:141
304050999350,3cyclictest3084253-21apt-get09:00:111
304050999350,3cyclictest3067148-21ps08:15:221
304050999350,2cyclictest3072496-21/usr/sbin/munin08:30:161
304050999350,2cyclictest3057744-21apt-get07:50:111
179699350,3rtkit-daemon0-21swapper/012:31:240
179699340,4rtkit-daemon3064259-21apt-get08:10:100
179699340,3rtkit-daemon0-21swapper/107:50:000
179699330,5rtkit-daemon3224328-21ssh12:06:050
179699330,3rtkit-daemon0-21swapper/112:16:590
179699330,3rtkit-daemon0-21swapper/109:27:010
179699330,3rtkit-daemon0-21swapper/109:21:170
179699330,3rtkit-daemon0-21swapper/108:29:420
179699320,4rtkit-daemon1795-21rtkit-daemon10:13:030
179699320,4rtkit-daemon1795-21rtkit-daemon09:58:260
179699320,3rtkit-daemon0-21swapper/110:59:300
179699320,3rtkit-daemon0-21swapper/109:54:380
179699310,3rtkit-daemon0-21swapper/112:25:220
179699310,3rtkit-daemon0-21swapper/109:08:580
179699310,3rtkit-daemon0-21swapper/108:37:090
3040504993027,2cyclictest3130147-21kworker/0:010:28:230
179699300,3rtkit-daemon0-21swapper/111:48:050
179699300,3rtkit-daemon0-21swapper/111:37:500
179699300,3rtkit-daemon0-21swapper/109:41:380
179699300,3rtkit-daemon0-21swapper/109:33:160
179699290,3rtkit-daemon0-21swapper/111:58:400
179699290,3rtkit-daemon0-21swapper/111:18:130
179699290,3rtkit-daemon0-21swapper/108:43:510
179699280,3rtkit-daemon0-21swapper/112:38:370
179699280,3rtkit-daemon0-21swapper/112:23:470
179699280,3rtkit-daemon0-21swapper/110:38:170
179699280,3rtkit-daemon0-21swapper/109:04:580
179699280,3rtkit-daemon0-21swapper/108:59:470
179699280,3rtkit-daemon0-21swapper/107:15:420
179699280,3rtkit-daemon0-21swapper/107:11:440
179699270,3rtkit-daemon0-21swapper/111:04:160
179699270,21rtkit-daemon3040496-21cyclictest11:54:040
179699260,3rtkit-daemon0-21swapper/111:42:010
30455362250,19sleep03045513-40apt-check07:20:120
304050499242,15cyclictest3218749-21apt-get12:00:110
304050499241,7cyclictest3087960-21diskmemload11:09:360
304050499240,7cyclictest3063550-21latency_hist08:05:000
30885252230,5sleep00-21swapper/009:10:160
179699230,4rtkit-daemon1795-21rtkit-daemon08:32:240
3040504992214,6cyclictest3142216-21ssh10:20:060
304050499220,5cyclictest0-21swapper/010:45:280
179699220,3rtkit-daemon1795-21rtkit-daemon08:50:280
179699220,3rtkit-daemon1795-21rtkit-daemon08:08:510
179699220,17rtkit-daemon1795-21rtkit-daemon11:24:210
179699220,17rtkit-daemon1795-21rtkit-daemon08:17:300
304050499217,3cyclictest31281102ssh10:01:020
304050499213,11cyclictest3057744-21apt-get07:50:110
304050499212,13cyclictest3059690-21apt-get07:55:130
304050499210,6cyclictest3183116-21ssh11:13:460
304050499210,6cyclictest3141759-21ssh10:19:340
179699210,3rtkit-daemon0-21swapper/010:08:430
304050499202,12cyclictest3078382-21apt-get08:45:120
3040504992015,3cyclictest3158092-21sed10:40:160
3040504992015,3cyclictest3153500-21perf10:35:000
3040504992013,5cyclictest3048894-21sendmail_mailtr07:25:260
3040504992013,4cyclictest3108178-21cstates09:35:140
304050499200,18cyclictest3198455-21ssh11:33:420
304050499198,9cyclictest3051998-21expr07:35:130
3040504991912,5cyclictest3055421-21seq07:43:190
3040504991910,7cyclictest3227232-21ntpq12:10:200
3040504991910,7cyclictest3167847-21seq10:52:140
304050499179,5cyclictest3050345-21awk07:30:180
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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