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2026-09-12 - 15:51
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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 Sep 12, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19171672313271,28sleep10-21swapper/107:09:441
19171912311270,26sleep00-21swapper/007:09:560
136599640,3rtkit-daemon1364-21rtkit-daemon10:35:040
136599620,8rtkit-daemon1364-21rtkit-daemon09:55:131
191731499583,6cyclictest2018809-21apt-get10:25:130
191731499582,5cyclictest1950049-21apt-get08:30:140
191731499581,7cyclictest2036453-21apt-get10:50:110
191731499580,11cyclictest2104834-21apt-get12:30:140
191731499572,7cyclictest1936269-21apt-get07:55:120
191731499572,6cyclictest2094555-21apt-get12:15:110
191731499572,6cyclictest1965852-21apt-get09:10:130
191731499572,5cyclictest1961861-21apt-get09:00:130
19231912560,6sleep00-21swapper/007:20:250
191731499562,5cyclictest1976546-21apt-get09:25:100
191731499552,6cyclictest2101408-21apt-get12:25:120
191731499551,9cyclictest2052090-21ssh11:11:540
191731499547,4cyclictest1965591-21diskmemload10:11:070
191731499543,9cyclictest2011980-21apt-get10:15:120
191731499541,7cyclictest2108186-21apt-get12:35:150
191731499522,5cyclictest2098026-21apt-get12:20:120
191731499522,5cyclictest2004586-21apt-get10:05:140
191731499521,9cyclictest2080067-21ssh11:53:340
191731499521,9cyclictest2069244-21ssh11:37:180
191731499521,9cyclictest1971524-21ssh09:16:550
191731499521,7cyclictest2046659-21apt-get11:05:120
191731499520,9cyclictest1989697-21ssh09:43:550
191731499512,4cyclictest1948085-21apt-get08:25:140
191731499512,11cyclictest2063732-21apt-get11:30:120
191731499511,9cyclictest2039792-21apt-get10:55:120
191731499511,9cyclictest2039792-21apt-get10:55:110
191731499511,8cyclictest2091150-21apt-get12:10:120
191731499511,8cyclictest2090645-21ssh12:09:260
191731499511,6cyclictest1934310-21apt-get07:50:110
191731499511,10cyclictest1946122-21apt-get08:20:110
191731499510,9cyclictest1975554-21ssh09:22:570
191731499510,8cyclictest2025017-21ssh10:33:450
136599510,4rtkit-daemon1364-21rtkit-daemon09:37:521
191731499502,4cyclictest1955956-21apt-get08:45:140
191731499501,9cyclictest2043137-21ssh11:00:020
191731499501,9cyclictest2016211-21ntp_states10:20:240
191731499501,8cyclictest2003602-21ssh10:03:140
191731499501,7cyclictest2074103-21apt-get11:45:150
19341352490,1sleep01934136-21systemd-run07:50:000
191731499492,5cyclictest2033031-21apt-get10:45:130
191731499491,9cyclictest1924559-21memory07:25:190
1917314994910,3cyclictest1949874-21kworker/u8:109:45:120
136599490,4rtkit-daemon1364-21rtkit-daemon09:16:201
136599490,4rtkit-daemon1364-21rtkit-daemon08:05:080
136599490,4rtkit-daemon1364-21rtkit-daemon07:23:391
191731499481,9cyclictest1952615-21memory08:35:210
191731499481,9cyclictest1944450-21perl08:15:170
191731499480,10cyclictest2085155-21ntp_states12:00:230
191731499478,2cyclictest0-21swapper/011:24:100
191731499471,9cyclictest1919575-21ntp_states07:15:020
191731499471,5cyclictest2070629-21apt-get11:40:160
191731499471,11cyclictest1938766-21irqstats08:00:190
136599470,4rtkit-daemon1364-21rtkit-daemon11:21:261
136599470,4rtkit-daemon1364-21rtkit-daemon07:10:401
136599470,3rtkit-daemon0-21swapper/012:18:291
191731499468,3cyclictest0-21swapper/009:38:040
191731499461,9cyclictest2056568-21ssh11:19:570
191731499461,8cyclictest2060973-21memory11:25:210
191731499461,5cyclictest1942176-21apt-get08:10:140
191731499461,5cyclictest1925926-21apt-get07:30:140
191731499460,10cyclictest1929448-21package-data-do07:37:260
191731499451,8cyclictest2030355-21ntp_states10:40:210
191731499442,14cyclictest1931948-21apt-get07:43:250
191731499441,4cyclictest1997827-21apt-get09:55:140
191731499424,7cyclictest1959879-21apt-get08:55:130
136599410,10rtkit-daemon1981857-21ssh09:31:360
136599400,4rtkit-daemon0-21swapper/012:32:171
136599390,7rtkit-daemon1994269-21runrttasks09:50:050
136599390,3rtkit-daemon0-21swapper/111:26:021
191731499382,7cyclictest2080869-21apt-get11:55:120
136599380,3rtkit-daemon0-21swapper/111:36:451
191731499373,8cyclictest1957915-21apt-get08:50:150
191731499363,7cyclictest1953995-21apt-get08:40:130
136599360,3rtkit-daemon0-21swapper/111:19:551
191731499346,5cyclictest1965512-21seq09:09:240
191731499341,9cyclictest1917678-21df07:10:180
136599340,4rtkit-daemon1364-21rtkit-daemon09:26:111
136599340,4rtkit-daemon0-21swapper/012:11:241
136599340,3rtkit-daemon1364-21rtkit-daemon11:32:151
136599330,3rtkit-daemon1364-21rtkit-daemon10:55:261
136599330,3rtkit-daemon1364-21rtkit-daemon10:55:261
136599330,3rtkit-daemon0-21swapper/010:35:191
136599320,2rtkit-daemon0-21swapper/012:20:461
20080512310,4sleep12007914-21python310:10:021
136599310,4rtkit-daemon1364-21rtkit-daemon07:40:541
136599310,3rtkit-daemon0-21swapper/010:25:051
136599310,1rtkit-daemon1364-21rtkit-daemon11:40:121
136599310,1rtkit-daemon1364-21rtkit-daemon09:47:391
136599300,3rtkit-daemon1364-21rtkit-daemon09:51:181
1917319992924,3cyclictest26-21ksoftirqd/110:15:001
1917319992911,4cyclictest26-21ksoftirqd/112:25:181
136599290,3rtkit-daemon1364-21rtkit-daemon08:47:581
136599290,3rtkit-daemon0-21swapper/007:54:251
1917319992810,4cyclictest26-21ksoftirqd/110:45:131
136599280,4rtkit-daemon1364-21rtkit-daemon12:05:271
136599280,3rtkit-daemon1364-21rtkit-daemon07:31:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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