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2025-12-07 - 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 Sun Dec 07, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213992291256,23sleep10-21swapper/107:06:031
217252273235,23sleep00-21swapper/007:09:560
215412269232,21sleep30-21swapper/307:07:553
215922264200,18sleep20-21swapper/207:08:342
279652630,0sleep20-21swapper/211:04:222
241922630,0sleep20-21swapper/211:50:152
121772620,0sleep00-21swapper/010:00:220
168542610,0sleep00-21swapper/011:45:130
205072600,0sleep20-21swapper/211:47:152
208802590,0sleep10-21swapper/111:47:341
202812560,0sleep30-21swapper/311:47:053
30762550,0sleep20-21swapper/209:28:272
31602510,0sleep10-21swapper/112:20:181
72882360,0sleep00-21swapper/010:46:500
314032240,0sleep20-21swapper/211:06:062
192502170,0sleep20-21swapper/209:15:142
2183399140,11cyclictest3553-21ssh10:44:350
2183399140,11cyclictest20798-21ssh09:41:560
2183399140,11cyclictest1066-21ssh09:26:180
2184499132,3cyclictest19982-21systemd-journal08:14:143
2184499131,3cyclictest502-21systemd-logind11:36:363
2184499131,3cyclictest19982-21systemd-journal11:41:113
2184499130,3cyclictest19982-21systemd-journal09:00:003
2183399133,5cyclictest14091-21sh11:43:010
2183399132,6cyclictest11900-21diskmemload09:16:260
2183399130,8cyclictest5960-21ssh09:55:480
2183399130,8cyclictest24275-21/usr/sbin/munin11:25:220
2183399130,10cyclictest7107-21ssh10:20:510
2183399130,10cyclictest5019-21ssh12:21:370
2183399130,10cyclictest27978-21ssh10:37:410
2183399130,0cyclictest17432-21apt-get08:10:030
2184499122,3cyclictest5969-21ntp_kernel_pll_09:30:193
2184499122,3cyclictest19982-21systemd-journal11:32:503
2184499122,2cyclictest1969-21cut12:40:003
2184499122,1cyclictest23779-21munin-run10:35:023
2184499120,3cyclictest19982-21systemd-journal09:50:183
2184499120,3cyclictest19982-21systemd-journal09:15:003
2183399123,7cyclictest19982-21systemd-journal11:14:530
2183399121,6cyclictest17505-21sh09:14:080
2183399121,6cyclictest14798-21chrt12:05:280
2183399121,6cyclictest14798-21chrt12:05:280
2183399120,9cyclictest8408-21ssh09:32:190
2183399120,9cyclictest15553-21ssh11:19:360
2183399120,8cyclictest31619-21awk07:30:120
2183399120,8cyclictest31442-21sh12:17:470
2183399120,7cyclictest6359-21df_inode12:00:160
2183399120,7cyclictest4978-21sh11:35:340
2183399120,7cyclictest32009-21ssh09:50:420
2183399120,7cyclictest27477-21ssh11:03:490
2183399120,7cyclictest26375-21ssh12:14:390
2183399120,7cyclictest20827-21ssh10:31:380
2183399120,7cyclictest20187-21ssh10:06:480
2183399120,7cyclictest1527-21ssh12:39:440
2183399120,7cyclictest14787-21ssh12:27:380
2183399120,6cyclictest18805-21ssh10:56:010
2183399120,6cyclictest10253-21/usr/sbin/munin10:50:280
2183399120,2cyclictest7661-21lldpd10:16:510
2183399120,1cyclictest28144-21ssh09:22:180
2184499113,2cyclictest508-21dbus-daemon09:38:053
2184499113,2cyclictest29146-21rm10:14:113
2184499113,2cyclictest27893-21sh10:37:373
2184499112,3cyclictest23786-21expr09:45:163
2184499112,2cyclictest11738-21rs:main3
2184499112,1cyclictest0-21swapper/310:18:333
2184499111,3cyclictest19565-21ssh11:21:593
2184499111,2cyclictest502-21systemd-logind12:00:013
2184499111,2cyclictest19982-21systemd-journal08:35:033
2184499110,3cyclictest31552-21cat07:30:013
2184499110,3cyclictest27175-21ssh11:51:553
2184499110,3cyclictest21685-21idleruntime-cro08:20:013
2184499110,3cyclictest19982-21systemd-journal11:11:133
2184499110,3cyclictest19982-21systemd-journal10:00:203
2184499110,3cyclictest19982-21systemd-journal08:25:013
2184499110,3cyclictest19982-21systemd-journal08:25:013
2184499110,2cyclictest19982-21systemd-journal07:14:483
2183399112,5cyclictest668-21runrttasks08:15:230
2183399111,6cyclictest13155-21taskset10:25:340
2183399110,7cyclictest4884-21taskset08:51:230
2183399110,7cyclictest3326-21chrt07:38:180
2183399110,7cyclictest31808-21ssh11:06:320
2183399110,7cyclictest26423-21apt-get08:30:110
2183399110,7cyclictest25827-21chrt08:26:110
2183399110,7cyclictest23813-21chrt07:12:530
2183399110,7cyclictest16593-21chrt08:06:260
2183399110,7cyclictest1562-21ssh11:56:230
2183399110,7cyclictest14189-21ssh09:36:430
2183399110,6cyclictest31158-21ssh11:30:500
2183399110,6cyclictest29543-21sh10:14:380
2183399110,6cyclictest21851-21ssh12:31:440
2183399110,2cyclictest30235-21missed_timers07:25:160
2183399110,2cyclictest26061-21sh09:46:230
2183399110,1cyclictest28853-21ssh11:53:230
2183399110,1cyclictest18110-21vmstat11:20:210
2183399110,0cyclictest12720-21apt-get08:00:130
2184499103,2cyclictest28881-21sh12:15:223
2184499103,2cyclictest20703-21sh12:30:503
2184499103,1cyclictest0-21swapper/310:52:033
2184499103,1cyclictest0-21swapper/309:16:223
2184499102,2cyclictest31633-21fschecks_time11:55:133
2184499102,2cyclictest12348-1kworker/u9:111:16:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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