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2025-12-25 - 09:36
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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 Thu Dec 25, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
224282319288,21sleep10-21swapper/119:08:411
224062313289,16sleep20-21swapper/219:08:262
222962282251,20sleep00-21swapper/019:06:590
222312256225,21sleep30-21swapper/319:06:273
90562540,0sleep10-21swapper/119:50:001
269182170,0sleep20-21swapper/220:25:212
22633991110,1cyclictest22-21ksoftirqd/120:15:001
22633991110,1cyclictest22-21ksoftirqd/100:35:011
2263399109,1cyclictest22-21ksoftirqd/121:45:021
2263399109,1cyclictest22-21ksoftirqd/100:00:001
2263399108,1cyclictest22-21ksoftirqd/122:30:011
2263399107,2cyclictest22-21ksoftirqd/122:20:011
2263399107,1cyclictest11145-21idleruntime-cro19:55:001
2262999103,2cyclictest22428-21grep21:30:150
2262999102,3cyclictest658-21snmpd22:03:270
2262999102,2cyclictest17034-21grep20:05:190
2262999100,3cyclictest8272-21turbostat20:59:590
2262999100,3cyclictest275-21systemd-journal19:11:390
226339998,1cyclictest22-21ksoftirqd/119:25:021
226339998,1cyclictest211rcuc/100:00:001
226339997,2cyclictest22-21ksoftirqd/123:45:011
226339996,2cyclictest22-21ksoftirqd/123:00:001
226339996,2cyclictest22-21ksoftirqd/120:59:591
226339996,2cyclictest22-21ksoftirqd/120:00:001
226299993,2cyclictest25110-21turbostat.cron20:29:560
226299992,3cyclictest658-21snmpd21:54:220
226299992,2cyclictest658-21snmpd20:49:540
226299991,3cyclictest658-21snmpd23:20:150
226299991,2cyclictest31212-21basename00:15:010
226299990,3cyclictest9467-21awk21:00:160
226299990,3cyclictest9188-21apt23:25:140
226299990,3cyclictest8403-21tune2fs00:35:120
226299990,3cyclictest275-21systemd-journal20:24:380
226299990,3cyclictest23465-21ntpq23:55:160
226299990,3cyclictest2231-21ntpq00:20:160
226299990,3cyclictest20184-21latency_hist23:50:000
226299990,3cyclictest18466-21latency_hist22:35:010
226299990,3cyclictest10965-21grep22:15:190
226299990,2cyclictest6361-21systemd-udevd19:41:100
226299990,2cyclictest504-21dbus-daemon21:15:000
226299990,2cyclictest28315-21munin-run21:45:020
226299990,2cyclictest275-21systemd-journal23:38:190
226299990,2cyclictest275-21systemd-journal22:52:230
226299990,2cyclictest24507-40mandb00:00:000
226299990,2cyclictest23239-21munin-plugin-st22:45:010
226379987,1cyclictest28-21ksoftirqd/200:00:012
226379986,2cyclictest28-21ksoftirqd/219:15:002
226339987,1cyclictest22-21ksoftirqd/123:15:011
226339987,1cyclictest22-21ksoftirqd/121:30:011
226339987,1cyclictest22-21ksoftirqd/120:25:011
226339987,1cyclictest22-21ksoftirqd/119:35:011
226339987,1cyclictest22-21ksoftirqd/119:15:011
226339986,1cyclictest22-21ksoftirqd/123:20:011
226339986,1cyclictest22-21ksoftirqd/120:40:011
226339986,1cyclictest22-21ksoftirqd/119:25:011
226299982,1cyclictest419-21cstates19:30:110
226299982,1cyclictest15283-21cpuspeed_turbos21:15:130
226299982,1cyclictest12734-21pmu-power22:20:170
226299981,2cyclictest31223-21expr20:35:190
226299981,2cyclictest28113-21grep20:30:150
226299981,2cyclictest25781-21/usr/sbin/munin19:15:130
226299981,2cyclictest19041-21cat20:10:160
226299980,3cyclictest990-21fschecks_count21:55:140
226299980,3cyclictest7521-21expr22:10:120
226299980,3cyclictest4773-21cut20:50:170
226299980,3cyclictest4397-21/usr/sbin/munin23:15:210
226299980,3cyclictest32453-21sort20:40:110
226299980,3cyclictest29680-21/usr/sbin/munin21:45:180
226299980,3cyclictest2864-21df19:35:130
226299980,3cyclictest27801-21date00:05:150
226299980,3cyclictest25770-21sshd21:36:380
226299980,3cyclictest2174-21find23:10:120
226299980,3cyclictest20515-21cat23:50:120
226299980,3cyclictest18818-21cmp22:35:020
226299980,3cyclictest17449-21cpu21:20:110
226299980,3cyclictest14415-21expr22:25:120
226299980,3cyclictest13990-21/usr/sbin/munin20:00:140
226299980,3cyclictest12463-21sshd21:07:000
226299980,3cyclictest10102-21ntpq19:50:160
226299980,2cyclictest353-21cut23:05:140
226299980,2cyclictest31550-21grep00:15:120
226299980,2cyclictest30885-21grep19:25:120
226299980,2cyclictest29892-21sh19:25:010
226299980,2cyclictest28330-21/usr/sbin/munin22:55:150
226299980,2cyclictest275-21systemd-journal00:30:070
226299980,2cyclictest23472-21/usr/sbin/munin22:45:120
226299980,2cyclictest20567-21/usr/sbin/munin20:15:140
226299980,2cyclictest20061-21grep21:25:130
226299980,2cyclictest16249-21df_inode23:40:130
226299980,2cyclictest11797-21sort19:55:150
226419974,2cyclictest34-21ksoftirqd/320:05:013
226419973,3cyclictest7907-21ntpq23:20:163
226419973,3cyclictest658-21snmpd22:23:173
226419973,3cyclictest658-21snmpd21:47:363
226419973,3cyclictest275-21systemd-journal21:59:373
226419973,3cyclictest275-21systemd-journal21:27:373
226419973,3cyclictest275-21systemd-journal19:51:493
226379976,1cyclictest28-21ksoftirqd/222:00:022
226379975,1cyclictest28-21ksoftirqd/221:40:002
226379973,3cyclictest504-21dbus-daemon22:30:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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