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2025-05-13 - 02:39
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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 Mon May 12, 2025 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16193442322280,27sleep10-21swapper/107:06:231
16195152319280,25sleep00-21swapper/007:08:140
1619817997773,3cyclictest1648090-21kworker/u8:308:39:570
16866922630,3sleep00-21swapper/009:33:130
161982199592,12cyclictest1799597-21apt-get12:25:141
18047252570,4sleep10-21swapper/112:30:291
161982199563,7cyclictest1769597-21apt-get11:45:161
125899560,4rtkit-daemon1257-21rtkit-daemon08:20:150
17287172550,4sleep00-21swapper/010:39:210
161982199552,9cyclictest1703157-21apt-get09:55:141
161982199551,13cyclictest1662384-21/usr/sbin/munin08:55:271
161982199543,6cyclictest1695544-21apt-get09:45:151
161982199532,12cyclictest1632761-21apt-get07:40:161
161982199532,12cyclictest1632761-21apt-get07:40:151
17251812520,4sleep10-21swapper/110:34:411
161982199522,10cyclictest1754936-21apt-get11:25:171
161982199516,5cyclictest0-21swapper/109:16:121
161982199511,7cyclictest1668667-21/usr/sbin/munin09:10:281
17137302430,4sleep00-21swapper/010:13:580
161982199433,7cyclictest1648731-21apt-get08:20:161
1619821994310,3cyclictest16448092grep08:10:181
161982199423,10cyclictest1664370-21apt-get09:00:141
161982199412,6cyclictest1676617-21apt-get09:20:151
125899410,4rtkit-daemon0-21swapper/010:56:291
17519972401,3sleep01752066-21ntp_states11:20:220
161982199402,9cyclictest1634703-21apt-get07:45:121
125899400,7rtkit-daemon0-21swapper/110:16:441
161982199393,8cyclictest1652627-21apt-get08:30:161
161982199392,8cyclictest1792296-21apt-get12:15:141
161982199392,8cyclictest1725582-21apt-get10:35:101
161982199392,12cyclictest1656548-21/usr/sbin/munin08:40:291
1619817993913,5cyclictest13-21ksoftirqd/012:25:000
125899390,6rtkit-daemon1257-21rtkit-daemon10:46:381
1619821993811,4cyclictest1668065-21diskmemload09:25:451
161982199381,12cyclictest1711903-21cnf-update-db10:10:031
161982199381,10cyclictest1666319-21apt-get09:05:141
161982199381,10cyclictest1666319-21apt-get09:05:141
161982199380,17cyclictest1691771-21munin-run09:39:591
125899380,3rtkit-daemon0-21swapper/112:11:050
161982199373,7cyclictest1646760-21apt-get08:15:161
161982199372,5cyclictest1777209-21apt-get11:55:161
125899370,4rtkit-daemon0-21swapper/112:39:301
125899370,3rtkit-daemon0-21swapper/010:54:120
125899370,1rtkit-daemon1257-21rtkit-daemon09:43:270
161982199360,8cyclictest1783413-21ssh12:03:171
161982199357,7cyclictest1668065-21diskmemload11:40:111
161982199353,8cyclictest1636653-21apt-get07:50:151
1619821993510,5cyclictest1668065-21diskmemload09:31:281
1619817993517,10cyclictest1628771-21apt-get07:30:220
125899350,4rtkit-daemon1257-21rtkit-daemon12:28:510
125899350,4rtkit-daemon1257-21rtkit-daemon10:04:180
125899350,4rtkit-daemon1257-21rtkit-daemon09:58:450
125899350,4rtkit-daemon0-21swapper/109:15:090
161982199343,8cyclictest1788569-21apt-get12:10:111
161982199343,6cyclictest1773446-21apt-get11:50:141
161982199342,8cyclictest1624435-21apt-get07:20:151
161982199342,10cyclictest1622461-21apt-get07:15:141
161981799344,10cyclictest13-21ksoftirqd/011:49:340
1619817993418,4cyclictest13-21ksoftirqd/011:15:000
1619817993414,5cyclictest13-21ksoftirqd/007:45:000
1619817993414,5cyclictest13-21ksoftirqd/007:45:000
125899340,5rtkit-daemon1668065-21diskmemload12:06:400
125899340,4rtkit-daemon1257-21rtkit-daemon12:18:590
125899340,4rtkit-daemon1257-21rtkit-daemon10:28:390
125899340,4rtkit-daemon1257-21rtkit-daemon09:11:000
125899340,4rtkit-daemon1257-21rtkit-daemon08:18:580
125899340,3rtkit-daemon0-21swapper/108:49:200
161982199333,5cyclictest1642518-21apt-get08:05:171
161982199332,7cyclictest1784745-21apt-check12:05:051
161982199331,13cyclictest1650675-21apt-get08:25:141
1619817993312,6cyclictest13-21ksoftirqd/012:35:160
125899330,4rtkit-daemon1257-21rtkit-daemon08:52:581
125899330,3rtkit-daemon0-21swapper/110:45:290
125899330,3rtkit-daemon0-21swapper/011:06:301
161981799328,10cyclictest13-21ksoftirqd/011:30:120
1619817993227,3cyclictest13-21ksoftirqd/012:05:000
1619817993214,4cyclictest13-21ksoftirqd/010:31:170
1619817993212,5cyclictest13-21ksoftirqd/010:09:220
1619817993210,4cyclictest13-21ksoftirqd/009:38:570
125899320,4rtkit-daemon1257-21rtkit-daemon11:44:300
125899320,4rtkit-daemon1257-21rtkit-daemon10:40:361
125899320,3rtkit-daemon0-21swapper/111:17:420
125899320,3rtkit-daemon0-21swapper/110:20:450
125899320,3rtkit-daemon0-21swapper/108:51:270
125899320,3rtkit-daemon0-21swapper/107:25:480
125899320,3rtkit-daemon0-21swapper/107:21:570
125899320,3rtkit-daemon0-21swapper/009:40:271
1619817993111,4cyclictest13-21ksoftirqd/011:35:280
1619817993111,4cyclictest13-21ksoftirqd/009:49:070
1619817993111,4cyclictest13-21ksoftirqd/009:26:020
1619817993111,3cyclictest13-21ksoftirqd/011:59:330
1619817993110,4cyclictest13-21ksoftirqd/010:40:100
125899310,4rtkit-daemon1257-21rtkit-daemon08:03:370
125899310,3rtkit-daemon0-21swapper/008:46:251
1619817993016,4cyclictest13-21ksoftirqd/008:10:010
1619817993012,3cyclictest13-21ksoftirqd/012:32:090
1619817993012,3cyclictest13-21ksoftirqd/007:12:200
1619817993011,4cyclictest13-21ksoftirqd/010:15:300
1619817993010,7cyclictest13-21ksoftirqd/010:55:200
1619817993010,4cyclictest13-21ksoftirqd/011:00:470
1619817993010,4cyclictest13-21ksoftirqd/009:22:540
125899300,4rtkit-daemon1257-21rtkit-daemon08:42:390
161981799298,4cyclictest13-21ksoftirqd/009:51:580
1619817992912,4cyclictest13-21ksoftirqd/011:26:540
1619817992911,4cyclictest13-21ksoftirqd/011:51:410
1619817992811,3cyclictest13-21ksoftirqd/007:15:010
1619817992810,4cyclictest13-21ksoftirqd/011:06:070
125899280,3rtkit-daemon0-21swapper/011:10:461
125899270,4rtkit-daemon1257-21rtkit-daemon10:51:011
125899270,1rtkit-daemon1257-21rtkit-daemon07:27:131
161982199266,3cyclictest0-21swapper/111:05:011
161982199260,6cyclictest0-21swapper/111:39:341
125899260,4rtkit-daemon1257-21rtkit-daemon07:37:091
161982199259,5cyclictest0-21swapper/110:25:081
1619817992510,3cyclictest13-21ksoftirqd/008:10:120
161981799250,6cyclictest0-21swapper/007:50:140
1619821992415,6cyclictest1711427-21python310:10:001
1619817992411,3cyclictest13-21ksoftirqd/009:05:240
1619817992411,3cyclictest13-21ksoftirqd/009:05:240
1619817992411,2cyclictest141rcu_preempt08:57:380
1619817992411,2cyclictest141rcu_preempt08:32:090
1619817992410,2cyclictest141rcu_preempt08:30:010
161982199232,15cyclictest1654574-21apt-get08:35:141
161982199231,3cyclictest1628771-21apt-get07:30:211
161982199230,6cyclictest0-21swapper/111:15:031
161982199230,5cyclictest0-21swapper/110:01:261
161981799238,4cyclictest13-21ksoftirqd/007:38:580
161981799238,2cyclictest141rcu_preempt09:00:010
1619817992310,2cyclictest141rcu_preempt07:55:140
161982199225,11cyclictest1640568-21apt-get08:00:141
161982199214,10cyclictest1751259-21apt-get11:20:131
161982199212,17cyclictest1799331-21latency_hist12:25:011
1619817992111,8cyclictest1634925-21/usr/sbin/munin07:45:160
1619821992015,3cyclictest1720356-21cat10:24:591
1619821992015,3cyclictest1702877-21sh09:54:591
1619821991813,3cyclictest1621696-21grep07:15:001
1619821991812,4cyclictest1639240-21taskset07:55:231
161982199170,8cyclictest1762067-21ssh11:34:541
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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