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2025-12-23 - 07:08
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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 rack1slot3.osadl.org (updated Tue Dec 23, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37888599130,12cyclictest0-21swapper/319:55:143
37888599120,1cyclictest0-21swapper/320:30:123
37888599120,11cyclictest0-21swapper/322:10:123
37888599119,1cyclictest0-21swapper/300:30:133
37888599119,0cyclictest0-21swapper/322:30:003
378885991111,0cyclictest0-21swapper/321:35:133
37888599110,9cyclictest0-21swapper/323:20:143
37888599110,11cyclictest0-21swapper/321:00:193
37888599110,10cyclictest0-21swapper/322:40:013
37888599110,0cyclictest0-21swapper/323:45:023
37888599110,0cyclictest0-21swapper/321:45:123
37888599110,0cyclictest0-21swapper/300:25:133
37888599109,0cyclictest0-21swapper/323:25:123
378885991010,0cyclictest0-21swapper/323:55:153
378885991010,0cyclictest0-21swapper/323:45:173
378885991010,0cyclictest0-21swapper/323:00:143
378885991010,0cyclictest0-21swapper/321:25:003
378885991010,0cyclictest0-21swapper/321:20:013
378885991010,0cyclictest0-21swapper/319:55:023
378885991010,0cyclictest0-21swapper/319:15:183
378885991010,0cyclictest0-21swapper/300:19:563
37888599100,0cyclictest0-21swapper/323:50:143
37888599100,0cyclictest0-21swapper/320:05:143
37888599100,0cyclictest0-21swapper/300:00:193
3788859999,0cyclictest0-21swapper/323:15:163
3788859999,0cyclictest0-21swapper/322:20:213
3788859999,0cyclictest0-21swapper/320:14:553
3788859999,0cyclictest0-21swapper/319:35:143
3788859999,0cyclictest0-21swapper/319:30:013
3788859998,0cyclictest0-21swapper/323:10:143
3788859998,0cyclictest0-21swapper/321:40:113
3788859998,0cyclictest0-21swapper/321:10:123
3788859998,0cyclictest0-21swapper/320:15:183
3788859990,8cyclictest0-21swapper/321:30:113
3788859990,8cyclictest0-21swapper/321:25:133
3788859990,8cyclictest0-21swapper/300:38:433
3788859988,0cyclictest0-21swapper/322:30:013
3788859988,0cyclictest0-21swapper/321:50:213
3788859988,0cyclictest0-21swapper/320:55:213
3788859988,0cyclictest0-21swapper/320:54:303
3788859988,0cyclictest0-21swapper/320:40:163
3788859988,0cyclictest0-21swapper/320:25:183
3788859988,0cyclictest0-21swapper/320:00:133
3788859987,0cyclictest0-21swapper/300:21:583
3788859980,0cyclictest0-21swapper/319:20:183
3788859977,0cyclictest0-21swapper/322:54:553
3788859970,7cyclictest0-21swapper/322:49:563
3788859970,6cyclictest0-21swapper/321:55:133
377466271,4sleep30-21swapper/319:05:163
3788859966,0cyclictest0-21swapper/322:55:183
3788859966,0cyclictest0-21swapper/322:05:143
3788859966,0cyclictest0-21swapper/300:05:173
3788859965,0cyclictest0-21swapper/323:06:413
3788859960,3cyclictest0-21swapper/319:10:113
14039860,3rtkit-daemon1-21systemd19:05:202
503132250,1sleep0503269-21/usr/sbin/munin00:10:170
425426250,4sleep1425598-21python321:05:171
3788859955,0cyclictest0-21swapper/319:40:113
3788859955,0cyclictest0-21swapper/319:30:193
3788859954,1cyclictest0-21swapper/300:10:123
3788859954,0cyclictest0-21swapper/322:15:213
3788859954,0cyclictest0-21swapper/320:21:503
3788859950,5cyclictest0-21swapper/322:00:193
3788859950,4cyclictest464929-21chrt22:40:123
378634251,2sleep10-21swapper/119:09:101
14039850,3rtkit-daemon397682-21df19:55:172
14039850,2rtkit-daemon401876-21ntp_states20:05:182
14039850,0rtkit-daemon0-21swapper/221:36:172
501289240,3sleep2501395-21awk00:05:192
500997240,3sleep0501078-21/usr/sbin/munin00:05:160
421880240,4sleep10-21swapper/120:56:051
390241240,3sleep1390458-21sed19:35:201
385242241,1sleep1385268-21apt-get19:25:121
3788859944,0cyclictest0-21swapper/323:35:023
3788859944,0cyclictest0-21swapper/320:46:143
3788859944,0cyclictest0-21swapper/320:35:373
3788859944,0cyclictest0-21swapper/319:49:213
3788859943,0cyclictest0-21swapper/321:05:053
3788859940,4cyclictest0-21swapper/323:30:103
14039840,2rtkit-daemon766-21snmpd23:15:001
14039840,2rtkit-daemon766-21snmpd00:35:011
14039840,2rtkit-daemon622-21wpa_supplicant22:06:432
14039840,2rtkit-daemon467430-21diskstats22:45:191
14039840,2rtkit-daemon431799-21cut21:20:172
14039840,2rtkit-daemon419915-21vmstat20:50:222
14039840,2rtkit-daemon380896-21munin-node22:02:582
468784230,0sleep00-21swapper/022:49:390
452038230,3sleep2452040-21sshd22:10:112
378080231,0sleep00-21swapper/019:05:210
14039830,2rtkit-daemon769-21ntpd21:09:032
14039830,2rtkit-daemon1-21systemd00:23:131
14039830,1rtkit-daemon772-21lldpd00:12:251
14039830,1rtkit-daemon769-21ntpd21:40:482
14039830,1rtkit-daemon766-21snmpd21:25:032
14039830,1rtkit-daemon622-21wpa_supplicant19:16:152
14039830,1rtkit-daemon606-21avahi-daemon00:07:221
14039830,1rtkit-daemon416870-21df_inode20:45:152
14039830,1rtkit-daemon380896-21munin-node23:55:091
14039830,1rtkit-daemon380896-21munin-node22:50:321
14039830,1rtkit-daemon380896-21munin-node22:27:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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