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2025-12-30 - 04:03
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 50 highest latencies:
System rack7slot8.osadl.org (updated Tue Dec 30, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14653214530,9sleep014649-21ntp_states19:05:420
154429914052,36cyclictest25931-21apt-get00:02:130
154429913757,37cyclictest31880-21ntp_states00:20:490
154429913548,31cyclictest17918-21apt-get19:18:150
154429913351,32cyclictest20778-21apt-get19:32:070
154429913156,36cyclictest27418-21https19:55:060
154429913057,33cyclictest3805-21ntp_states20:26:170
154429913056,36cyclictest23057-21apt-get23:51:360
154429913055,35cyclictest12694-21munin-run23:10:030
154429912856,52cyclictest16099-21ntp_states23:20:420
154429912852,37cyclictest30593-21ntp_states00:15:440
154429912752,36cyclictest28986-21wget00:10:130
154429912656,50cyclictest21082-21ntp_states23:40:430
154429912655,33cyclictest24454-21ntp_states21:45:420
154429912580,34cyclictest12690-21apt-get23:11:120
154429912559,48cyclictest5240-21sendmail-msp22:40:020
154429912553,50cyclictest9773-21sshd22:56:320
154429912546,25cyclictest27380-21apt-get19:57:060
154429912481,33cyclictest20561-21systemctl23:40:020
154429912461,21cyclictest14821-21munin-run21:10:020
154429912452,34cyclictest3253-21ntp_states22:30:450
154429912449,22cyclictest1284-21chrt22:23:280
154429912380,32cyclictest13213-21gpgv21:05:040
154429912351,35cyclictest30154-21latency_hist22:10:030
154429912273,37cyclictest15549-21df_inode21:10:280
154429912269,41cyclictest19958-21seq19:25:310
154429912254,49cyclictest9595-21wget20:50:130
154429912252,51cyclictest7547-21runrttasks22:48:380
154429912247,36cyclictest16960-21ntp_states21:15:410
154429912156,49cyclictest2932-21wc20:25:070
154429912152,50cyclictest15937-21/usr/sbin/munin19:10:440
154429912151,36cyclictest1305-21snmpd21:28:290
154429912149,35cyclictest8036-21diskstats22:50:230
154429912057,43cyclictest25989-21http00:00:080
154429912057,21cyclictest25224-21df_inode19:45:220
154429912056,21cyclictest18049-21diskstats21:20:240
154429912055,24cyclictest15015-21/usr/sbin/munin23:15:500
154429912054,49cyclictest2889-21wget00:35:170
154429912051,48cyclictest511-21wget20:15:150
154429912049,52cyclictest1305-21snmpd23:33:560
154429912048,19cyclictest10731-21ntp_states23:00:420
154429912047,37cyclictest31943-21open_inodes22:15:440
154429911966,35cyclictest1305-21snmpd20:43:180
154429911958,22cyclictest23653-21grep19:40:010
154429911953,45cyclictest22903-21wget21:40:150
154429911952,51cyclictest22048-21seq23:45:150
154429911950,49cyclictest30276-21cat22:10:120
154429911949,18cyclictest6899-21seq20:39:370
154429911872,37cyclictest2251-21runrttasks00:31:380
154429911858,21cyclictest28180-21ntp_states22:00:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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