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2025-12-09 - 04:50
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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 highest latencies:
System rack7slot8.osadl.org (updated Tue Dec 09, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2317823010,8sleep023179-21readlink19:05:350
23829991758,144cyclictest1424-21nginx22:18:340
238299917429,123cyclictest1424-21nginx23:28:520
238299917134,117cyclictest4368-21ntpq20:00:390
23829991689,136cyclictest1424-21nginx21:57:320
238299916822,108cyclictest1336-21runrttasks20:05:450
23829991647,14cyclictest16192-21apt-get22:52:120
238299916146,103cyclictest8810-21runrttasks22:21:490
238299915929,112cyclictest9020-21wget20:20:150
238299915910,17cyclictest30352-21ntp_states23:40:400
23829991588,22cyclictest815-21rs:main0
23829991588,18cyclictest4362-21/usr/sbin/munin22:05:450
238299915840,101cyclictest3650irq/20-4900000023:52:120
238299915839,100cyclictest22406-21runrttasks23:11:440
238299915832,109cyclictest10250irq/56-4a10000023:33:560
238299915820,118cyclictest1356-21snmpd22:41:270
238299915815,14cyclictest1424-21nginx00:28:060
23829991577,20cyclictest1801-21node19:33:000
23829991567,129cyclictest20123-21seq21:02:120
23829991558,14cyclictest26633-21diskstats19:20:220
23829991557,21cyclictest760-21systemd-journal23:36:280
238299915550,95cyclictest29244-21seq21:37:110
23829991549,22cyclictest13309-21munin-run22:40:040
23829991546,19cyclictest32095-21apt-get21:52:080
238299915432,102cyclictest6951-21if_eth000:15:310
23829991537,19cyclictest24698-21df23:20:240
23829991536,17cyclictest1356-21snmpd22:45:170
23829991536,17cyclictest11891-21sshd00:35:290
23829991536,14cyclictest3148-21runrttasks00:00:170
238299915320,113cyclictest1356-21snmpd21:12:280
23829991529,16cyclictest1356-21snmpd19:17:050
23829991528,123cyclictest1356-21snmpd20:40:300
23829991527,124cyclictest1356-21snmpd20:57:250
238299915229,111cyclictest1336-21runrttasks22:10:200
23829991518,18cyclictest31445-21fw_conntrack23:45:290
23829991518,16cyclictest24071-21munin-run23:20:050
23829991517,16cyclictest30539-21runrttasks21:42:280
23829991507,121cyclictest792-21haveged19:15:030
238299915013,117cyclictest12712-21/usr/sbin/munin20:35:340
238299915012,122cyclictest24746-21ntp_states21:20:420
23829991499,20cyclictest8261-21irqstats00:20:320
23829991498,19cyclictest20610-21wget21:05:120
23829991498,18cyclictest760-21systemd-journal22:26:290
23829991497,20cyclictest1356-21snmpd23:58:090
23829991497,18cyclictest18628-21sshd22:56:280
238299914922,109cyclictest1356-21snmpd20:52:250
238299914910,117cyclictest1356-21snmpd23:06:050
23829991487,20cyclictest10853-21irqstats22:30:320
238299914819,113cyclictest27969-21seq21:35:040
23829991478,19cyclictest1528-21wget19:50:140
23829991478,121cyclictest7745-21aten_r7power_cu20:15:140
23829991475,19cyclictest599-21sh19:45:430
238299914738,98cyclictest3378-21runrttasks19:56:040
238299914731,105cyclictest10469-21sshd20:25:280
238299914726,99cyclictest23068-21/usr/sbin/munin21:15:130
238299914723,113cyclictest19404-21diskstats23:00:240
238299914718,91cyclictest5178-21sshd00:08:500
238299914710,15cyclictest0-21swapper/022:00:160
23829991466,12cyclictest1356-21snmpd20:12:150
238299914516,113cyclictest31533-21grep19:40:160
238299914424,108cyclictest11671-21df_inode20:30:220
238299914334,96cyclictest32106-21http21:50:040
238299914318,107cyclictest28547-21sshd19:27:590
238299914238,92cyclictest10687-21runrttasks00:30:300
238299914214,12cyclictest142450nginx00:13:050
23829991418,17cyclictest1356-21snmpd21:27:310
238299913917,109cyclictest15443-21/usr/sbin/munin20:45:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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