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2026-08-31 - 00:34
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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 Sun Aug 30, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121281723820,10sleep10-21swapper/107:05:251
12134852264192,26sleep00-21swapper/007:06:140
133951621600,2sleep0161rcuc/011:00:150
121398499115109,4cyclictest1194103-21kworker/u8:007:28:100
121398999108101,5cyclictest1222182-21fwupd07:28:111
121398499600,3cyclictest1408010-21sed12:40:000
13982772590,7sleep013-21ksoftirqd/012:25:170
136599560,4rtkit-daemon1364-21rtkit-daemon11:27:520
121398499551,35cyclictest1308287-21apt-get10:15:120
121398499542,32cyclictest1260434-21apt-get09:05:130
121398499541,34cyclictest1350165-21apt-get11:15:130
121398499531,35cyclictest1226179-21package-data-do07:38:120
121398499522,35cyclictest1335933-21apt-get10:55:120
121398499522,33cyclictest1374241-21apt-get11:50:130
121398499522,32cyclictest1228551-21apt-get07:45:150
136599510,3rtkit-daemon1364-21rtkit-daemon09:41:370
121398499513,32cyclictest1342944-21apt-get11:05:120
121398499512,38cyclictest1370734-21apt-get11:45:140
121398499512,32cyclictest1363895-21apt-get11:35:120
121398499512,32cyclictest1294694-21apt-get09:55:150
121398499512,31cyclictest1329263-21apt-get10:45:120
121398499512,31cyclictest1256488-21apt-get08:55:130
121398499512,25cyclictest1280888-21apt-get09:35:120
121398499511,3cyclictest1270154-21/usr/sbin/munin09:20:220
121398499511,32cyclictest1347509-21ntp_states11:10:220
121398499511,31cyclictest1230507-21apt-get07:50:110
121398499510,2cyclictest1214118-21apt-get07:10:140
121398499510,1cyclictest1246660-21apt-get08:30:130
136599500,4rtkit-daemon1364-21rtkit-daemon07:47:561
136599500,3rtkit-daemon0-21swapper/011:04:381
121398499502,29cyclictest1387876-21apt-get12:10:130
121398499501,33cyclictest1273274-21apt-get09:25:070
121398499501,31cyclictest1266529-21apt-get09:15:120
121398499497,30cyclictest1356865-21systemd-run11:25:000
121398499493,34cyclictest1242735-21apt-get08:20:130
121398499492,36cyclictest1234456-21apt-get08:00:120
121398499491,32cyclictest1325851-21apt-get10:40:140
121398499491,30cyclictest1240746-21apt-get08:15:110
1213984994910,20cyclictest1403378-21sh12:31:550
121398499490,32cyclictest1321946-21apt-get10:35:130
121398499490,32cyclictest1301446-21apt-get10:05:130
121398499489,19cyclictest1264600-21sh09:11:130
121398499482,34cyclictest1360443-21apt-get11:30:150
121398499481,29cyclictest1332630-21apt-get10:50:130
121398499480,2cyclictest937971-21snapd12:15:100
121398499478,23cyclictest1312156-21cat10:20:180
121398499472,33cyclictest1377740-21apt-get11:55:140
121398499472,32cyclictest1394604-21apt-get12:20:130
121398499471,32cyclictest1226591-21apt-get07:40:140
121398499471,28cyclictest1381101-21apt-get12:00:130
1213984994712,19cyclictest1280508-21sh09:34:410
121398499470,3cyclictest1236915-21cat08:05:180
121398499470,2cyclictest1315882-21ntp_states10:25:220
121398499470,2cyclictest1288475-21ntp_states09:45:210
121398499467,21cyclictest1293412-21sh09:52:280
121398499461,27cyclictest1238608-21cnf-update-db08:10:010
121398499451,31cyclictest1216276-21users07:15:030
121398499451,30cyclictest1248624-21apt-get08:35:120
121398499451,30cyclictest1223349-21ntp_states07:30:220
121398499450,3cyclictest1258972-21cat09:00:170
121398499450,34cyclictest1386360-21ssh12:06:500
121398499450,33cyclictest1300097-21ssh10:02:270
121398499441,26cyclictest1254509-21/usr/sbin/munin08:50:180
121398499440,7cyclictest1307694-21ssh10:14:060
121398499431,30cyclictest1218642-21apt-get07:20:120
121398499430,27cyclictest1320890-21sh10:32:520
121398499430,26cyclictest1370373-21sh11:44:470
121398499430,26cyclictest1250589-21/usr/sbin/munin08:40:200
121398499411,3cyclictest1252564-21apt-get08:45:100
121398499411,28cyclictest1244905-21df_inode08:25:150
121398499390,2cyclictest1232475-21apt-get07:55:140
136599350,3rtkit-daemon0-21swapper/011:08:351
136599350,3rtkit-daemon0-21swapper/010:32:521
136599350,3rtkit-daemon0-21swapper/010:01:131
136599350,3rtkit-daemon0-21swapper/009:40:221
136599340,7rtkit-daemon1338142-21sh10:57:291
136599340,3rtkit-daemon0-21swapper/012:11:381
136599330,3rtkit-daemon0-21swapper/012:16:471
136599330,3rtkit-daemon0-21swapper/007:34:211
1213989993314,3cyclictest26-21ksoftirqd/109:25:231
136599320,4rtkit-daemon1364-21rtkit-daemon11:59:221
136599320,3rtkit-daemon0-21swapper/010:17:461
136599320,3rtkit-daemon0-21swapper/009:15:541
136599320,3rtkit-daemon0-21swapper/009:08:021
136599320,3rtkit-daemon0-21swapper/007:44:561
136599320,2rtkit-daemon0-21swapper/008:40:001
121398999329,3cyclictest26-21ksoftirqd/108:55:201
121398999328,4cyclictest26-21ksoftirqd/112:05:001
1213989993210,6cyclictest26-21ksoftirqd/109:20:151
136599310,4rtkit-daemon1364-21rtkit-daemon07:15:451
136599310,3rtkit-daemon0-21swapper/012:35:451
136599310,3rtkit-daemon0-21swapper/010:13:061
136599310,3rtkit-daemon0-21swapper/007:58:331
136599300,4rtkit-daemon1364-21rtkit-daemon11:36:201
136599300,3rtkit-daemon0-21swapper/012:08:351
136599300,3rtkit-daemon0-21swapper/011:46:521
136599300,3rtkit-daemon0-21swapper/011:26:381
136599300,3rtkit-daemon0-21swapper/010:40:371
136599300,3rtkit-daemon0-21swapper/010:22:361
136599300,3rtkit-daemon0-21swapper/008:52:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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