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2026-08-07 - 16:09
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot8.osadl.org (updated Fri Aug 07, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39212294264,19sleep20-21swapper/207:05:072
55422288225,21sleep30-21swapper/307:05:443
58722276245,20sleep10-21swapper/107:09:441
57072271240,21sleep00-21swapper/007:07:500
36162580,0sleep10-21swapper/111:50:001
259382580,0sleep00-21swapper/010:05:520
136102550,0sleep10-21swapper/110:56:551
309322530,0sleep30-21swapper/309:30:153
119962220,0sleep10-21swapper/112:14:311
278112180,0sleep30-21swapper/312:23:543
74092170,0sleep10-21swapper/111:12:481
264912170,0sleep30-21swapper/307:50:173
91162140,0sleep20-21swapper/211:52:532
175532130,0sleep20-21swapper/210:20:202
603099129,2cyclictest22-21ksoftirqd/112:40:001
603099119,1cyclictest22-21ksoftirqd/107:25:011
603099108,1cyclictest22-21ksoftirqd/109:45:011
603099108,1cyclictest22-21ksoftirqd/109:30:011
188222100,1sleep10-21swapper/107:35:141
60309998,1cyclictest22-21ksoftirqd/111:30:011
60309998,1cyclictest22-21ksoftirqd/110:45:011
60309998,1cyclictest22-21ksoftirqd/110:20:011
60309998,1cyclictest22-21ksoftirqd/110:00:011
60309998,1cyclictest22-21ksoftirqd/109:20:011
60309998,1cyclictest211rcuc/111:25:011
60309996,2cyclictest22-21ksoftirqd/111:45:001
60309996,2cyclictest22-21ksoftirqd/110:30:011
60309996,2cyclictest22-21ksoftirqd/109:05:011
60309996,2cyclictest22-21ksoftirqd/107:30:011
60349987,1cyclictest28-21ksoftirqd/212:00:002
60349985,2cyclictest658-21snmpd10:27:102
60309987,1cyclictest22-21ksoftirqd/112:30:001
60309987,1cyclictest22-21ksoftirqd/112:20:001
60309987,1cyclictest22-21ksoftirqd/111:55:001
60309987,1cyclictest22-21ksoftirqd/109:55:011
60309987,1cyclictest22-21ksoftirqd/108:45:001
60309986,2cyclictest22-21ksoftirqd/112:04:591
60309986,2cyclictest22-21ksoftirqd/107:54:591
60309986,1cyclictest22-21ksoftirqd/109:35:011
60309986,1cyclictest22-21ksoftirqd/108:35:001
60309984,3cyclictest28577-21ntpq07:55:181
60309982,3cyclictest8484-21munin-run07:15:011
60279985,2cyclictest658-21snmpd11:02:560
60279984,2cyclictest275-21systemd-journal11:07:030
60279981,4cyclictest18316-21ls07:35:010
24104280,0sleep20-21swapper/209:45:202
60399974,2cyclictest34-21ksoftirqd/307:30:003
60399973,4cyclictest18279-21kworker/3:209:39:153
60399973,3cyclictest275-21systemd-journal10:00:413
60349973,3cyclictest658-21snmpd12:37:582
60349973,3cyclictest658-21snmpd10:38:432
60349973,3cyclictest2822-21smart_sda10:50:182
60349973,3cyclictest275-21systemd-journal09:42:482
60349973,1cyclictest0-21swapper/211:28:542
60349972,3cyclictest31822-21awk08:05:002
60309976,1cyclictest22-21ksoftirqd/112:35:001
60309976,1cyclictest22-21ksoftirqd/112:09:591
60309976,1cyclictest22-21ksoftirqd/110:40:011
60309976,1cyclictest22-21ksoftirqd/109:00:011
60309976,1cyclictest22-21ksoftirqd/108:55:011
60309976,1cyclictest22-21ksoftirqd/108:30:001
60309976,1cyclictest22-21ksoftirqd/108:25:001
60309976,1cyclictest22-21ksoftirqd/108:05:001
60309974,2cyclictest275-21systemd-journal07:40:471
60309973,3cyclictest658-21snmpd08:06:471
60309973,3cyclictest275-21systemd-journal10:54:321
60309973,3cyclictest275-21systemd-journal07:49:191
60309973,1cyclictest141rcu_preempt11:55:131
60309972,2cyclictest483-21avahi-daemon10:05:001
60309971,2cyclictest22-21ksoftirqd/109:45:161
60309970,5cyclictest24017-21fschecks_count10:05:141
60309970,1cyclictest141rcu_preempt12:20:011
60279974,2cyclictest29489-21sshd07:59:200
60279973,3cyclictest19767-21smart_sda07:35:200
60279973,1cyclictest15432-21awk10:20:010
60279971,3cyclictest9376-21munin-run10:55:000
18807270,0sleep30-21swapper/309:23:303
7924260,0sleep00-21swapper/011:32:370
60399966,0cyclictest0-21swapper/311:57:123
60399966,0cyclictest0-21swapper/311:40:153
60399966,0cyclictest0-21swapper/311:36:093
60399966,0cyclictest0-21swapper/308:35:213
60399963,3cyclictest18279-21kworker/3:212:05:073
60399963,3cyclictest18279-21kworker/3:210:23:023
60399963,3cyclictest18279-21kworker/3:209:15:113
60399963,2cyclictest9991-21ssh10:15:483
60399963,2cyclictest9710-21mailstats08:25:183
60399963,2cyclictest31816-21cat09:50:173
60399963,2cyclictest28885-21if_enp4s011:45:153
60399963,2cyclictest24676-21fschecks_time10:25:143
60399963,2cyclictest23294-21grep09:45:153
60399963,2cyclictest1959-21ssh12:27:323
60399963,2cyclictest1938-21cron11:10:013
60399963,2cyclictest19149-21ssh10:40:413
60399963,2cyclictest13716-21readlink07:25:013
60399962,4cyclictest18279-21kworker/3:212:10:473
60399962,4cyclictest18279-21kworker/3:209:57:163
60399962,4cyclictest18279-21kworker/3:209:25:473
60399962,3cyclictest658-21snmpd12:38:133
60399962,3cyclictest658-21snmpd11:30:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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