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2026-05-22 - 15:24
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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 50 highest latencies:
System rackeslot2.osadl.org (updated Fri May 22, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
320292521600,2sleep30-21swapper/322:05:013
337786721100,3sleep13355489-21kworker/1:0+cgroup_destroy23:59:591
32759462990,2sleep30-21swapper/322:50:063
31476862980,2sleep30-21swapper/321:27:333
32872732370,3sleep11-21systemd23:00:021
33300782360,0sleep13330079-21/usr/sbin/munin23:25:111
2969959993229,2cyclictest3393736-21apt-key00:10:010
31417632300,2sleep03141625-21ssh21:25:010
31797222290,2sleep20-21swapper/221:50:012
2969962992522,2cyclictest3417047-21latency_hist00:25:031
31125852240,2sleep0171ktimers/021:05:010
2969967992421,1cyclictest0-21swapper/223:25:022
2969967992421,1cyclictest0-21swapper/220:35:002
2969967992421,1cyclictest0-21swapper/219:55:012
2969959992421,2cyclictest3093549-21apt20:50:000
2969959992421,2cyclictest1290-21dbus-daemon23:50:010
2969959992413,6cyclictest0-21swapper/000:25:010
2969962992315,3cyclictest0-21swapper/123:50:001
2969959992312,6cyclictest3424625-21packagekitd00:34:570
2969959992312,6cyclictest0-21swapper/000:10:080
2969959992312,6cyclictest0-21swapper/000:10:080
2969967992220,1cyclictest0-21swapper/222:55:022
2969967992220,1cyclictest0-21swapper/200:10:032
2969962992219,2cyclictest3011627-21fschecks_count19:45:011
2969962992218,3cyclictest3149298-21fschecks_time21:30:011
2969962992214,3cyclictest0-21swapper/122:35:061
2969959992219,2cyclictest1-21systemd21:45:000
2969959992211,7cyclictest3149076-21sh21:30:010
2969967992119,1cyclictest0-21swapper/219:40:012
2969967992118,1cyclictest0-21swapper/222:00:012
2969967992118,1cyclictest0-21swapper/221:05:002
2969962992118,2cyclictest3424867-21/usr/sbin/munin00:30:031
2969962992118,2cyclictest2999385-21if_eno119:35:021
296995999212,10cyclictest3240918-21cat22:30:010
2969959992118,2cyclictest3263975-21fschecks_count22:45:000
2969959992118,2cyclictest0-21swapper/021:00:000
2969967992018,1cyclictest0-21swapper/220:50:012
2969967992018,1cyclictest0-21swapper/220:15:002
2969967992018,1cyclictest0-21swapper/219:35:012
2969967992017,1cyclictest0-21swapper/222:50:012
2969967992017,1cyclictest0-21swapper/222:50:002
2969962992017,2cyclictest3030372-21latency_hist20:00:031
2969962992017,2cyclictest1-21systemd19:25:021
2969959992017,2cyclictest3824565-21in:imuxsock22:10:000
2969959992017,2cyclictest2992913-21/usr/sbin/munin19:30:010
2969959992017,2cyclictest0-21swapper/020:00:030
2969959992016,3cyclictest3037541-21irqcore20:05:030
2969959992011,5cyclictest3187053-21systemd-run21:55:000
2969967991917,1cyclictest0-21swapper/222:40:022
2969967991916,2cyclictest0-21swapper/223:45:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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