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2025-12-19 - 08:01
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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 Fri Dec 19, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130152268238,20sleep00-21swapper/019:06:370
129862268236,21sleep20-21swapper/219:06:142
113302263236,18sleep10-21swapper/119:05:091
129352262231,21sleep30-21swapper/319:05:353
5392580,0sleep00-21swapper/023:28:000
191612150,0sleep30-21swapper/300:10:153
3408290,0sleep00-21swapper/019:55:220
27643280,0sleep00-21swapper/020:50:190
134059985,2cyclictest22-21ksoftirqd/120:30:011
134059985,2cyclictest22-21ksoftirqd/120:30:001
134059983,3cyclictest275-21systemd-journal23:37:551
134059983,3cyclictest275-21systemd-journal21:22:291
134139974,2cyclictest9602-21cron21:25:013
134139974,2cyclictest504-21dbus-daemon21:37:263
134139974,2cyclictest275-21systemd-journal19:50:013
134139973,3cyclictest658-21snmpd00:06:313
134139973,3cyclictest504-21dbus-daemon20:55:193
134139973,3cyclictest275-21systemd-journal23:32:513
134139973,3cyclictest275-21systemd-journal00:18:543
134139973,2cyclictest275-21systemd-journal21:50:223
134099974,2cyclictest28-21ksoftirqd/222:50:012
134099972,3cyclictest27426-21idleruntime-cro22:05:012
134099970,4cyclictest25117-21munin-run19:35:012
134099970,4cyclictest18594-21munin-run00:10:002
134059974,2cyclictest275-21systemd-journal22:57:491
134059973,3cyclictest658-21snmpd22:38:131
134059973,3cyclictest275-21systemd-journal23:32:371
134059973,3cyclictest275-21systemd-journal20:19:551
134059973,2cyclictest275-21systemd-journal00:25:131
134059971,3cyclictest3909-21munin-run22:25:021
134059970,4cyclictest501-21in:imuxsock21:55:011
134039974,2cyclictest30149-21apt-config00:35:010
134039973,3cyclictest275-21systemd-journal23:07:530
134039970,6cyclictest15984-21kworker/0:000:22:500
134139966,0cyclictest0-21swapper/322:55:263
134139963,2cyclictest658-21snmpd19:39:053
134139963,2cyclictest3860-21if_err_enp4s021:10:163
134139963,2cyclictest275-21systemd-journal19:11:213
134139963,2cyclictest23347-21cat19:30:113
134139963,2cyclictest10760-21ls23:50:163
134139962,3cyclictest658-21snmpd23:57:463
134139962,3cyclictest658-21snmpd23:40:533
134139962,3cyclictest658-21snmpd22:45:413
134139962,3cyclictest658-21snmpd22:31:083
134139962,3cyclictest658-21snmpd22:00:543
134139962,3cyclictest658-21snmpd21:47:153
134139962,3cyclictest658-21snmpd21:08:113
134139962,3cyclictest658-21snmpd20:51:423
134139962,3cyclictest658-21snmpd20:48:093
134139962,3cyclictest658-21snmpd20:34:543
134139962,3cyclictest658-21snmpd19:40:573
134139962,3cyclictest658-21snmpd19:26:083
134139962,3cyclictest658-21snmpd19:21:253
134139962,3cyclictest658-21snmpd00:20:413
134139962,3cyclictest5532-21grep20:00:213
134139962,3cyclictest30482-21cat00:35:123
134139962,3cyclictest275-21systemd-journal22:00:013
134139962,3cyclictest275-21systemd-journal19:19:413
134139962,3cyclictest16272-21if_enp4s022:50:163
134139960,6cyclictest0-21swapper/323:47:523
134139960,5cyclictest24496-21/usr/sbin/munin23:10:203
134139960,3cyclictest16221-21ntp_states20:25:173
134139960,3cyclictest16221-21ntp_states20:25:173
134099964,1cyclictest28716-21ntp_states00:30:172
134099964,1cyclictest15755-21cat19:15:002
134099963,2cyclictest975-21cat19:50:232
134099963,2cyclictest504-21dbus-daemon22:55:202
134099963,2cyclictest275-21systemd-journal22:12:392
134099963,2cyclictest275-21systemd-journal00:04:552
134099963,2cyclictest21761-21sshd20:37:312
134099963,2cyclictest20454-21chrt19:22:242
134099963,2cyclictest19315-21tail21:45:152
134099962,3cyclictest9390-21cat20:10:172
134099962,3cyclictest658-21snmpd23:55:432
134099962,3cyclictest658-21snmpd23:37:082
134099962,3cyclictest658-21snmpd23:33:022
134099962,3cyclictest658-21snmpd23:20:232
134099962,3cyclictest658-21snmpd23:05:102
134099962,3cyclictest658-21snmpd22:40:172
134099962,3cyclictest658-21snmpd22:30:202
134099962,3cyclictest658-21snmpd22:27:382
134099962,3cyclictest658-21snmpd21:54:062
134099962,3cyclictest658-21snmpd20:22:092
134099962,3cyclictest658-21snmpd19:17:192
134099962,3cyclictest4139-21cat21:10:172
134099962,3cyclictest3595-21sshd19:57:262
134099962,3cyclictest29526-21hostname20:55:162
134099962,3cyclictest25190-21cat23:10:172
134099962,3cyclictest21578-21fw_packets00:15:142
134099962,3cyclictest16837-21expr21:40:132
134099962,3cyclictest10279-21df_inode23:50:142
134099961,3cyclictest26444-21munin-run20:50:022
134099960,6cyclictest0-21swapper/221:17:412
134099960,0cyclictest0-21swapper/221:25:152
134059964,1cyclictest13641-21users21:30:221
134059963,2cyclictest658-21snmpd23:51:061
134059963,2cyclictest501-21in:imuxsock23:01:451
134059963,2cyclictest32119-21tr23:25:181
134059963,2cyclictest31537-21df_inode21:00:131
134059963,2cyclictest29335-21sshd19:42:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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