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2026-01-02 - 00:16
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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 Jan 01, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
223752281226,16sleep20-21swapper/207:07:122
224422266234,22sleep10-21swapper/107:08:041
222692259228,20sleep00-21swapper/007:05:500
223812251219,21sleep30-21swapper/307:07:163
275092580,0sleep20-21swapper/210:10:322
171342580,1sleep20-21swapper/212:10:272
300512570,0sleep30-21swapper/312:35:463
17472570,0sleep30-21swapper/309:20:453
32242560,0sleep30-21swapper/311:45:133
135512540,0sleep10-21swapper/111:50:251
101412260,0sleep20-21swapper/209:43:522
256742220,0chrt25675-21sh10:27:540
173312220,0sleep00-21swapper/009:47:220
99742190,0sleep10-21swapper/109:25:211
44912190,0sleep00-21swapper/008:50:110
173882180,0sleep00-21swapper/009:30:110
55232170,0sleep00-21swapper/009:23:240
127822170,0sleep00-21swapper/010:02:490
3622160,0sleep213206-21diskmemload09:55:292
244052150,0sleep20-21swapper/212:33:062
158652140,0sleep20-21swapper/210:40:182
2272299122,2cyclictest275-21systemd-journal10:05:421
121142120,0sleep30-21swapper/312:25:453
113222120,0sleep20-21swapper/209:05:112
2272299111,2cyclictest2092-21apt-get10:15:131
2272299110,6cyclictest0-21swapper/110:46:211
227299998,1cyclictest28-21ksoftirqd/208:50:012
227229993,3cyclictest16636-21munin-plugin-st11:35:011
227329984,3cyclictest275-21systemd-journal11:15:423
227299987,1cyclictest28-21ksoftirqd/211:55:012
227299984,3cyclictest275-21systemd-journal09:20:122
227229985,2cyclictest3103-21sh10:33:291
227179985,2cyclictest28608-21ssh10:11:170
227179980,2cyclictest7417-21ssh12:23:460
227179980,2cyclictest663-21runrttasks08:58:390
20837280,0sleep00-21swapper/011:19:160
26026270,0sleep30-21swapper/311:21:363
227329974,2cyclictest491-21systemd-logind09:48:343
227329973,3cyclictest658-21snmpd10:11:593
227329972,3cyclictest275-21systemd-journal08:14:153
227299975,1cyclictest28-21ksoftirqd/207:15:012
227299974,2cyclictest1-21systemd08:00:012
227299973,3cyclictest658-21snmpd11:10:222
227299972,3cyclictest19685-21awk10:25:012
227299970,4cyclictest32655-21dump-pmu-power12:20:002
227229976,1cyclictest0-21swapper/110:54:551
227229973,3cyclictest30544-21sshd12:36:081
227229972,4cyclictest275-21systemd-journal09:31:261
227229972,3cyclictest275-21systemd-journal09:45:001
227229972,3cyclictest275-21systemd-journal08:58:391
227229972,3cyclictest27385-21munin-run11:05:011
227179973,3cyclictest658-21snmpd11:40:590
227179973,3cyclictest658-21snmpd10:08:480
227179973,3cyclictest504-21dbus-daemon08:40:000
227179970,7cyclictest0-21swapper/009:13:280
227179970,1cyclictest0-21swapper/009:36:250
227329966,0cyclictest0-21swapper/310:09:143
227329963,2cyclictest9134-21sh10:00:223
227329963,2cyclictest658-21snmpd11:30:523
227329963,2cyclictest658-21snmpd08:31:253
227329963,2cyclictest5729-21sshd09:40:483
227329963,2cyclictest504-21dbus-daemon09:19:213
227329963,2cyclictest4334-21ssh11:10:093
227329963,2cyclictest32130-21ssh12:00:483
227329963,2cyclictest31077-21awk08:35:203
227329963,2cyclictest30123-21ssh11:05:403
227329963,2cyclictest275-21systemd-journal10:31:563
227329963,2cyclictest275-21systemd-journal07:30:013
227329963,2cyclictest24437-21sh11:02:573
227329963,2cyclictest21399-21hddtemp_smartct11:55:153
227329963,2cyclictest18404-21tail09:30:183
227329963,2cyclictest17292-21ssh10:40:493
227329963,2cyclictest16341-21ssh12:10:203
227329963,2cyclictest13160-21ssh10:20:313
227329962,3cyclictest9631-21processes09:25:183
227329962,3cyclictest658-21snmpd10:50:513
227329962,3cyclictest658-21snmpd09:57:173
227329962,3cyclictest658-21snmpd08:21:393
227329962,3cyclictest658-21snmpd07:55:123
227329962,3cyclictest658-21snmpd07:33:383
227329962,3cyclictest658-21snmpd07:15:273
227329962,3cyclictest27727-21cat11:40:213
227329962,3cyclictest275-21systemd-journal10:27:453
227329962,3cyclictest22409-21latency_hist09:15:003
227329962,3cyclictest1-21systemd10:15:193
227329962,1cyclictest0-21swapper/312:22:133
227329962,1cyclictest0-21swapper/311:51:413
227329962,1cyclictest0-21swapper/310:57:063
227329961,2cyclictest8740-21ssh10:36:093
227329960,6cyclictest0-21swapper/311:28:313
227329960,6cyclictest0-21swapper/308:17:373
227329960,2cyclictest5465-21ntp_states08:50:183
227329960,0cyclictest0-21swapper/312:30:053
227329960,0cyclictest0-21swapper/312:05:053
227329960,0cyclictest0-21swapper/310:46:043
227329960,0cyclictest0-21swapper/309:51:273
227329960,0cyclictest0-21swapper/307:40:193
227299964,1cyclictest30973-21sh11:24:592
227299963,2cyclictest9726-21sshd10:00:402
227299963,2cyclictest8298-21ssh12:05:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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