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2026-06-02 - 10:17
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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 rackfslot7.osadl.org (updated Tue Jun 02, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137651997739,19cyclictest511ktimers/322:17:033
137651997718,39cyclictest137099-21kworker/u32:0+ext4-rsv-conversion19:35:013
137651997515,20cyclictest874-21mta-sts-daemon23:30:243
137651997333,19cyclictest312137-21if_err_eno100:25:173
137651997132,19cyclictest292895-21memory23:50:193
137651997112,19cyclictest0-21swapper/319:44:033
137651997012,39cyclictest236742-21taskset22:09:013
13765199667,58cyclictest239662-21munin-run22:15:013
137654996527,19cyclictest781ktimers/619:55:166
13765199635,39cyclictest247812-21cut22:30:013
13765199635,19cyclictest186203-21ntp_states20:35:213
137651996323,39cyclictest511ktimers/300:03:213
13765199623,40cyclictest161087-21ntpq19:50:213
137651995815,40cyclictest166149-21perl20:00:153
13765599570,18cyclictest0-21swapper/721:20:167
137651995718,38cyclictest194139-21memory20:50:173
137651995717,39cyclictest234221-21systemctl22:05:003
137651995636,19cyclictest219862-21sshd21:39:253
137651995618,19cyclictest268338-21meminfo23:05:193
137651995536,19cyclictest315346-21ntpq00:30:213
137651995515,39cyclictest0-21swapper/323:25:163
137651995515,19cyclictest164244-21grep19:55:233
137651995419,35cyclictest0-21swapper/322:58:533
137651995419,15cyclictest0-21swapper/300:11:253
137651995414,39cyclictest0-21swapper/300:18:213
137650995414,39cyclictest0-21swapper/222:45:172
137654995315,19cyclictest0-21swapper/623:15:176
137651995314,39cyclictest0-21swapper/321:22:533
137655995213,39cyclictest0-21swapper/723:55:177
137654995214,19cyclictest0-21swapper/621:55:166
137651995214,19cyclictest169752-21mailstats20:05:213
137651995211,39cyclictest0-21swapper/319:17:093
137651995113,38cyclictest0-21swapper/320:21:153
137651995111,39cyclictest0-21swapper/323:49:053
137651995111,39cyclictest0-21swapper/320:48:493
137651995111,39cyclictest0-21swapper/320:48:493
137651995111,39cyclictest0-21swapper/320:28:103
137651995012,38cyclictest0-21swapper/321:55:013
137651995012,38cyclictest0-21swapper/319:40:013
137651995012,19cyclictest0-21swapper/320:20:013
137651995011,39cyclictest0-21swapper/323:41:093
137651995011,39cyclictest0-21swapper/323:23:453
137651995011,39cyclictest0-21swapper/321:27:353
137651995011,39cyclictest0-21swapper/321:03:533
137651995011,39cyclictest0-21swapper/300:23:573
137651995011,38cyclictest0-21swapper/323:38:053
137651995010,39cyclictest0-21swapper/320:56:293
137655994911,19cyclictest0-21swapper/722:25:177
137651994910,39cyclictest0-21swapper/323:01:093
137651994910,39cyclictest0-21swapper/322:34:533
137651994910,39cyclictest0-21swapper/321:48:573
137651994910,19cyclictest0-21swapper/321:43:533
137654994829,19cyclictest0-21swapper/623:40:156
13765199489,19cyclictest511ktimers/323:13:093
13765199488,39cyclictest0-21swapper/319:21:193
137651994830,0cyclictest0-21swapper/321:05:183
137651994829,19cyclictest296843-21apt-get00:00:013
13765499479,19cyclictest0-21swapper/620:55:196
13765199476,4cyclictest877-21mta-sts-daemon22:37:273
13765599468,19cyclictest0-21swapper/722:00:167
13765199468,19cyclictest511ktimers/322:52:413
13765199467,19cyclictest236199-21snmpd19:47:053
137651994626,20cyclictest114732-21kworker/3:2+events20:45:013
137651994626,20cyclictest114732-21kworker/3:2+events20:45:013
137654994527,18cyclictest0-21swapper/623:25:166
13765199457,38cyclictest0-21swapper/322:20:473
13765199456,39cyclictest0-21swapper/320:31:413
13765199446,19cyclictest1-21systemd23:20:013
13765199446,19cyclictest0-21swapper/321:12:253
13765199445,39cyclictest0-21swapper/321:59:573
137651994425,19cyclictest0-21swapper/321:32:413
137651994425,19cyclictest0-21swapper/319:25:033
13765099432,39cyclictest0-21swapper/219:45:172
137651994223,19cyclictest0-21swapper/321:18:293
137651994223,19cyclictest0-21swapper/300:38:213
13765499413,19cyclictest0-21swapper/621:45:176
137651994122,19cyclictest0-21swapper/322:40:373
137651994121,19cyclictest0-21swapper/322:48:163
13765499402,19cyclictest0-21swapper/620:25:146
13765199400,18cyclictest0-21swapper/300:05:153
13765099390,20cyclictest0-21swapper/219:35:172
137654993819,0cyclictest0-21swapper/622:40:166
13765099380,38cyclictest0-21swapper/222:10:152
137655993718,19cyclictest0-21swapper/719:50:167
137654993712,4cyclictest0-21swapper/621:15:196
13765499370,17cyclictest0-21swapper/600:35:156
137651993737,0cyclictest0-21swapper/320:10:313
13765599360,16cyclictest0-21swapper/723:15:017
13764999360,17cyclictest0-21swapper/120:40:181
13764999360,17cyclictest0-21swapper/120:40:181
137655993535,0cyclictest192844-21kworker/7:2+events22:36:217
137655993518,17cyclictest0-21swapper/723:30:167
13765599340,34cyclictest0-21swapper/720:50:157
13765599340,15cyclictest0-21swapper/720:15:167
13765599340,15cyclictest0-21swapper/719:55:167
137654993415,19cyclictest0-21swapper/622:20:176
13765499340,34cyclictest0-21swapper/620:20:236
13765099340,15cyclictest0-21swapper/223:35:162
137655993333,0cyclictest192844-21kworker/7:2+events21:44:097
137655993314,19cyclictest0-21swapper/722:05:157
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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