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2026-08-04 - 20:42
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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 Tue Aug 04, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
61302305275,19sleep20-21swapper/207:08:432
62292280249,20sleep00-21swapper/007:09:590
61452271243,18sleep10-21swapper/107:08:551
42412270239,20sleep30-21swapper/307:05:043
52272670,1sleep012-21ksoftirqd/009:35:120
274702650,0sleep30-21swapper/312:25:143
232442620,0sleep334-21ksoftirqd/311:23:593
49412600,0sleep10-21swapper/112:10:571
206502600,0sleep10-21swapper/110:23:231
278682590,0sleep00-21swapper/010:47:010
89122560,1sleep00-21swapper/012:33:440
160452560,0sleep00-21swapper/012:18:140
321772550,0sleep10-21swapper/109:11:351
109492540,0sleep30-21swapper/307:15:223
200842430,0sleep20-21swapper/210:42:212
181062430,2sleep122-21ksoftirqd/111:20:211
41542220,0sleep00-21swapper/012:10:210
69222190,0sleep10-21swapper/110:34:591
256982170,0sleep00-21swapper/009:27:310
319912160,0sleep00-21swapper/009:11:250
241612160,0sleep10-21swapper/110:05:211
91492150,2sleep334-21ksoftirqd/309:17:293
79502150,0sleep20-21swapper/210:55:072
251452140,0sleep10-21swapper/109:00:181
169942140,0sleep00-21swapper/010:20:330
19492130,0sleep30-21swapper/309:52:303
113442130,0sleep128387-21diskmemload11:55:211
633699111,1cyclictest141rcu_preempt11:45:110
63449993,3cyclictest20392-21cron07:40:012
63369995,3cyclictest658-21snmpd11:04:040
63499984,3cyclictest275-21systemd-journal10:20:013
63449987,1cyclictest28-21ksoftirqd/209:25:002
63369984,3cyclictest875-21systemctl08:05:190
63369982,3cyclictest2386-21munin-run12:30:000
63499974,2cyclictest504-21dbus-daemon07:40:013
63499974,2cyclictest275-21systemd-journal11:30:013
63499973,3cyclictest658-21snmpd10:06:063
63499973,3cyclictest275-21systemd-journal11:54:093
63499973,3cyclictest13437-21df08:35:133
63499970,2cyclictest275-21systemd-journal10:00:003
63449976,1cyclictest28-21ksoftirqd/212:05:012
63449973,3cyclictest275-21systemd-journal11:24:302
63449971,3cyclictest1-21systemd08:39:592
63449971,1cyclictest141rcu_preempt11:08:592
63419973,3cyclictest658-21snmpd11:29:431
63419973,3cyclictest658-21snmpd10:14:181
63419973,3cyclictest658-21snmpd09:06:421
63419973,3cyclictest658-21snmpd07:13:541
63419973,3cyclictest275-21systemd-journal12:10:011
63369976,1cyclictest12-21ksoftirqd/007:40:010
63369975,2cyclictest12-21ksoftirqd/012:05:000
63369973,3cyclictest3521-11brltty08:27:580
63369973,3cyclictest2877-21ntpq11:50:180
63369973,2cyclictest275-21systemd-journal07:56:370
63369973,1cyclictest0-21swapper/009:43:480
63369970,3cyclictest325982sh11:10:020
63369970,2cyclictest8367-21dump-pmu-power08:25:010
13138270,0sleep10-21swapper/112:15:581
63499966,0cyclictest0-21swapper/312:18:013
63499964,1cyclictest28368-21cron09:10:003
63499964,1cyclictest17892-21df08:45:103
63499963,2cyclictest658-21snmpd12:06:243
63499963,2cyclictest658-21snmpd11:11:263
63499963,2cyclictest658-21snmpd11:05:513
63499963,2cyclictest658-21snmpd10:55:213
63499963,2cyclictest658-21snmpd09:33:313
63499963,2cyclictest28089-11brltty07:11:503
63499963,2cyclictest25735-21sh09:27:333
63499963,2cyclictest19255-21cut12:00:163
63499963,2cyclictest16874-21ntpq10:40:193
63499963,2cyclictest14644-21sh10:39:343
63499962,3cyclictest9612-21sed08:25:203
63499962,3cyclictest658-21snmpd12:37:343
63499962,3cyclictest658-21snmpd12:30:223
63499962,3cyclictest658-21snmpd11:55:233
63499962,3cyclictest658-21snmpd11:00:153
63499962,3cyclictest658-21snmpd10:10:513
63499962,3cyclictest658-21snmpd09:10:273
63499962,3cyclictest658-21snmpd08:55:023
63499962,3cyclictest658-21snmpd08:30:563
63499962,3cyclictest658-21snmpd07:57:453
63499962,3cyclictest658-21snmpd07:50:163
63499962,3cyclictest658-21snmpd07:49:313
63499962,3cyclictest658-21snmpd07:43:343
63499962,3cyclictest658-21snmpd07:28:193
63499962,3cyclictest515-21cat10:50:153
63499962,3cyclictest275-21systemd-journal09:48:073
63499962,3cyclictest24702-11brltty08:08:433
63499962,3cyclictest18151-21tune2fs11:40:173
63499962,3cyclictest16396-21expr07:30:143
63499962,3cyclictest14736-21gdbus10:20:023
63499962,3cyclictest14512-21expr10:00:153
63499962,3cyclictest13626-21cat09:20:153
63499962,3cyclictest12015-21expr07:20:143
63499962,3cyclictest10516-21ntpq11:35:203
63499962,3cyclictest0-21swapper/309:38:343
63499962,1cyclictest0-21swapper/312:13:223
63499962,1cyclictest0-21swapper/311:45:293
63499962,1cyclictest0-21swapper/310:46:093
63499962,1cyclictest0-21swapper/310:31:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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