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2025-12-04 - 15:55
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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 04, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198542314283,20sleep20-21swapper/207:08:342
198552276243,21sleep30-21swapper/307:08:353
197322267200,20sleep00-21swapper/007:06:590
199422257224,21sleep10-21swapper/107:09:421
226182590,0sleep20-21swapper/210:13:212
102082590,1sleep10-21swapper/110:54:001
116772580,0sleep00-21swapper/012:30:420
178052540,0sleep20-21swapper/208:15:002
12402520,0sleep10-21swapper/110:21:181
45652440,0sleep30-21swapper/311:39:443
243292190,0sleep00-21swapper/011:53:220
9832170,0sleep30-21swapper/311:11:333
5242170,0sleep00-21swapper/010:20:360
219122170,0sleep20-21swapper/211:02:232
171792170,0sleep30-21swapper/311:24:573
217132140,0sleep00-21swapper/007:10:200
312792120,0sleep30-21swapper/310:20:143
284922120,0sleep30-21swapper/310:42:423
262342110,0sleep10-21swapper/109:22:061
200949994,3cyclictest19982-21systemd-journal12:19:312
200949994,3cyclictest19982-21systemd-journal09:43:562
200909994,1cyclictest24393-21awk10:40:011
200879992,4cyclictest23405-21idleruntime-cro12:40:000
200879992,4cyclictest11815-21munin-plugin-st10:05:010
200999983,3cyclictest19982-21systemd-journal08:14:593
200999983,3cyclictest19982-21systemd-journal07:25:233
200949986,1cyclictest11936-21sensors_temp09:10:192
200949984,3cyclictest19982-21systemd-journal12:11:262
200949984,3cyclictest19982-21systemd-journal11:35:472
200949983,3cyclictest19982-21systemd-journal09:38:292
200949983,3cyclictest19982-21systemd-journal07:37:312
200949980,6cyclictest19982-21systemd-journal07:52:232
200909987,1cyclictest22-21ksoftirqd/111:20:011
200909984,3cyclictest19982-21systemd-journal08:29:391
200909984,3cyclictest19982-21systemd-journal07:15:131
200909983,3cyclictest19982-21systemd-journal09:28:531
200879987,1cyclictest12-21ksoftirqd/011:49:590
200879986,1cyclictest2052-21cron12:25:000
200879983,3cyclictest19982-21systemd-journal09:15:070
200879982,3cyclictest16392-21munin-run09:15:010
200999975,1cyclictest0-21swapper/312:10:213
200999974,2cyclictest668-21runrttasks08:32:583
200999974,2cyclictest508-21dbus-daemon11:46:093
200999974,2cyclictest508-21dbus-daemon07:57:073
200999973,3cyclictest508-21dbus-daemon08:20:003
200999973,3cyclictest508-21dbus-daemon07:17:533
200999973,3cyclictest32541-21systemctl10:45:203
200999973,3cyclictest30654-21snmpd10:53:383
200999973,3cyclictest30654-21snmpd08:45:223
200999973,3cyclictest12956-21cron12:10:003
200999973,3cyclictest0-21swapper/310:55:193
200999973,1cyclictest0-21swapper/309:13:263
200999972,3cyclictest19982-21systemd-journal11:44:043
200999972,3cyclictest19982-21systemd-journal07:30:343
200999971,4cyclictest19982-21systemd-journal10:03:073
200999970,3cyclictest31987-21ssh09:27:233
200949974,2cyclictest508-21dbus-daemon11:09:262
200949973,3cyclictest508-21dbus-daemon12:23:412
200949973,3cyclictest508-21dbus-daemon07:16:382
200949973,3cyclictest30654-21snmpd08:42:582
200949973,3cyclictest19982-21systemd-journal10:26:012
200949973,3cyclictest19982-21systemd-journal08:52:252
200949973,3cyclictest1-21systemd08:17:072
200949973,3cyclictest0-21swapper/210:36:152
200949973,3cyclictest0-21swapper/210:03:092
200949973,1cyclictest0-21swapper/211:53:592
200949973,1cyclictest0-21swapper/211:33:412
200949972,3cyclictest19982-21systemd-journal08:55:272
200949972,3cyclictest19982-21systemd-journal07:45:092
200949971,3cyclictest10153-21munin-run09:10:002
200949970,6cyclictest24926-21cstates10:15:142
200949970,4cyclictest294492ssh09:51:242
200909974,2cyclictest7661-21lldpd12:14:561
200909974,2cyclictest668-21runrttasks10:32:151
200909974,2cyclictest508-21dbus-daemon07:21:141
200909974,2cyclictest1-21systemd09:13:011
200909974,2cyclictest11900-21sh11:20:181
200909974,2cyclictest11736-21in:imuxsock08:43:501
200909973,3cyclictest508-21dbus-daemon08:14:381
200909973,3cyclictest19982-21systemd-journal12:29:551
200909973,3cyclictest19982-21systemd-journal10:00:591
200909973,3cyclictest19982-21systemd-journal09:16:471
200909973,3cyclictest11148-21grep12:30:221
200909973,3cyclictest0-21swapper/111:46:391
200909973,3cyclictest0-21swapper/110:19:291
200909973,3cyclictest0-21swapper/109:47:261
200909973,2cyclictest19982-21systemd-journal07:58:461
200909973,1cyclictest10161-21diskmemload11:25:131
200909973,1cyclictest0-21swapper/112:37:451
200909972,3cyclictest19982-21systemd-journal11:51:241
200909971,4cyclictest19982-21systemd-journal07:52:561
200909971,1cyclictest1-21systemd07:50:011
200909971,1cyclictest11075-21cron10:30:011
200909970,7cyclictest0-21swapper/109:54:111
200909970,4cyclictest18133-21awk10:10:011
200879977,0cyclictest0-21swapper/009:08:020
200879976,1cyclictest12-21ksoftirqd/011:25:010
200879974,2cyclictest6575-21systemctl10:25:190
200879974,2cyclictest508-21dbus-daemon08:17:010
200879974,2cyclictest12-21ksoftirqd/007:40:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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