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2026-03-26 - 08:45
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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 Thu Mar 26, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19041192261188,28sleep00-21swapper/019:08:570
19040452248181,52sleep10-21swapper/119:08:091
20089082690,4chrt0-21swapper/122:24:021
179699590,5rtkit-daemon1795-21rtkit-daemon20:19:240
179699550,4rtkit-daemon1795-21rtkit-daemon20:27:551
20296602540,6sleep10-21swapper/122:53:171
179699520,4rtkit-daemon1795-21rtkit-daemon22:02:000
179699520,4rtkit-daemon1795-21rtkit-daemon21:43:050
179699500,3rtkit-daemon1795-21rtkit-daemon00:01:511
179699490,4rtkit-daemon1795-21rtkit-daemon23:19:571
179699480,4rtkit-daemon1795-21rtkit-daemon22:10:340
190434499412,10cyclictest1970340-21apt-get21:30:110
19578292400,1chrt1957825-21sh21:12:530
179699400,5rtkit-daemon1999814-21grep22:10:201
20657112390,1sleep02065713-21rm23:44:140
20341192380,1sleep00-21swapper/023:00:010
190434499389,5cyclictest0-21swapper/022:16:240
190434499383,8cyclictest2099967-21apt-get00:35:130
179699380,3rtkit-daemon0-21swapper/122:27:361
179699370,6rtkit-daemon2052692-21irqstats23:25:190
179699370,3rtkit-daemon0-21swapper/021:19:300
190434499362,7cyclictest2080814-21apt-get00:05:130
179699360,3rtkit-daemon0-21swapper/020:40:171
179699360,3rtkit-daemon0-21swapper/020:08:410
190434499353,8cyclictest1937232-21apt-get20:25:150
190434499352,7cyclictest1947001-21apt-get20:50:130
190434499352,14cyclictest1948761-21apt-get20:55:080
1904344993512,6cyclictest66950irq/132-enp2s023:03:120
179699350,6rtkit-daemon2043787-21ssh23:13:150
179699350,4rtkit-daemon1795-21rtkit-daemon00:08:561
179699350,3rtkit-daemon0-21swapper/122:25:220
179699350,3rtkit-daemon0-21swapper/021:59:391
190434499343,7cyclictest2096482-21apt-get00:30:120
190434499343,7cyclictest2023625-21apt-get22:45:150
190434499342,8cyclictest1908982-21apt-get19:20:140
190434499340,16cyclictest2015507-21seq22:33:210
179699340,4rtkit-daemon1795-21rtkit-daemon21:54:100
179699340,4rtkit-daemon1795-21rtkit-daemon21:23:590
179699340,4rtkit-daemon1795-21rtkit-daemon19:48:140
179699340,3rtkit-daemon0-21swapper/123:18:160
179699340,3rtkit-daemon0-21swapper/122:43:370
179699340,3rtkit-daemon0-21swapper/100:17:150
19511142330,5chrt1951112-21cron20:59:591
190434499332,8cyclictest1926649-21apt-get20:00:140
190434499332,8cyclictest1904484-21apt-get19:10:140
190434499332,7cyclictest1996266-21ntp_states22:05:200
190434499331,11cyclictest2089525-21/usr/sbin/munin00:20:280
179699330,3rtkit-daemon0-21swapper/123:48:360
179699330,3rtkit-daemon0-21swapper/119:18:200
179699330,3rtkit-daemon0-21swapper/021:33:071
190434499323,9cyclictest1941130-21apt-get20:35:140
190434499323,7cyclictest1930545-21apt-get20:10:140
190434499323,6cyclictest2059192-21apt-get23:35:130
190434499322,6cyclictest1939182-21apt-get20:30:130
190434499322,11cyclictest1913696-21apt-get19:30:130
1904344993212,3cyclictest1911137-21apt-config19:25:010
179699320,4rtkit-daemon1795-21rtkit-daemon19:54:160
179699320,3rtkit-daemon1795-21rtkit-daemon21:57:580
179699320,3rtkit-daemon1795-21rtkit-daemon21:27:090
179699320,3rtkit-daemon0-21swapper/123:20:190
179699320,3rtkit-daemon0-21swapper/122:36:490
179699320,3rtkit-daemon0-21swapper/021:02:571
1904349993115,10cyclictest2048656-21apt-get23:20:131
190434499312,8cyclictest1924678-21apt-get19:55:130
190434499312,7cyclictest1981390-21apt-get21:45:120
190434499312,7cyclictest1916048-21apt-get19:35:130
190434499311,12cyclictest1943102-21apt-get20:40:120
179699310,4rtkit-daemon1795-21rtkit-daemon23:48:011
179699310,4rtkit-daemon1795-21rtkit-daemon21:39:190
179699310,3rtkit-daemon0-21swapper/021:44:251
179699310,3rtkit-daemon0-21swapper/020:38:511
1904349993026,2cyclictest1931889-21taskset20:10:471
190434999302,23cyclictest1919795-21python319:45:021
179699300,4rtkit-daemon1795-21rtkit-daemon20:20:300
179699300,4rtkit-daemon1795-21rtkit-daemon19:23:371
179699300,3rtkit-daemon1795-21rtkit-daemon19:15:511
179699300,3rtkit-daemon1795-21rtkit-daemon00:11:321
179699300,3rtkit-daemon0-21swapper/123:57:070
179699300,3rtkit-daemon0-21swapper/123:53:230
179699300,3rtkit-daemon0-21swapper/123:53:230
179699300,3rtkit-daemon0-21swapper/100:27:190
179699300,3rtkit-daemon0-21swapper/021:45:231
179699300,3rtkit-daemon0-21swapper/021:27:471
179699300,3rtkit-daemon0-21swapper/021:11:491
179699300,3rtkit-daemon0-21swapper/020:47:311
20734262290,3chrt0-21swapper/123:55:001
20734262290,3chrt0-21swapper/123:55:001
190434499292,7cyclictest2083769-21apt-get00:10:140
179699290,4rtkit-daemon1795-21rtkit-daemon23:06:100
179699290,4rtkit-daemon0-21swapper/020:03:011
179699290,3rtkit-daemon0-21swapper/122:50:450
179699290,3rtkit-daemon0-21swapper/119:43:480
179699290,3rtkit-daemon0-21swapper/020:17:561
179699280,3rtkit-daemon0-21swapper/100:03:540
179699280,3rtkit-daemon0-21swapper/021:53:221
179699280,3rtkit-daemon0-21swapper/021:23:221
179699280,3rtkit-daemon0-21swapper/021:09:301
179699280,3rtkit-daemon0-21swapper/020:52:521
190434999270,6cyclictest0-21swapper/122:32:191
179699270,3rtkit-daemon0-21swapper/022:08:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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