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2026-05-19 - 00:50
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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 Mon May 18, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10849223242,62sleep00-21swapper/019:07:240
112309915162,36cyclictest7672-21diskstats21:00:240
112309914667,22cyclictest1305-21snmpd20:52:110
112309914568,36cyclictest14207-21ntp_states19:20:400
112309913963,37cyclictest19917-21apt-get19:46:340
1123099139114,14cyclictest0-21swapper/019:10:040
112309913764,35cyclictest24770-21apt-get22:11:320
112309913763,37cyclictest7332-21munin-run21:00:020
112309913667,50cyclictest2010-21node23:58:140
112309913661,36cyclictest16928-21ntp_states23:45:410
112309913560,37cyclictest1305-21snmpd00:16:440
112309913461,19cyclictest754-21systemd-journal23:03:160
112309913459,37cyclictest9096-21ntp_states21:05:420
112309913367,49cyclictest1408-21nginx00:13:160
112309913367,46cyclictest10192-21munin-run23:20:020
112309913266,32cyclictest4388-21memory22:55:350
112309913262,34cyclictest12843-21ntp_states21:20:390
112309913262,33cyclictest12322-21latency_hist21:20:050
112309913258,37cyclictest16379-21diskstats21:35:220
112309913185,35cyclictest18669-21munin-plugin-st19:40:010
112309913164,48cyclictest22411-21/usr/sbin/munin22:00:130
112309913161,50cyclictest1305-21snmpd22:36:220
112309913159,34cyclictest19919-21/usr/sbin/munin19:45:030
112309913069,41cyclictest1305-21snmpd20:46:020
112309913066,22cyclictest29015-21apt20:20:010
112309913059,51cyclictest27783-21/usr/sbin/munin22:20:120
112309912971,43cyclictest787-21haveged21:33:070
112309912965,22cyclictest21899-21fw_forwarded_lo19:50:270
112309912962,48cyclictest3719-21sshd22:53:070
112309912961,28cyclictest1408-21nginx23:53:140
112309912960,50cyclictest1305-21snmpd00:26:460
112309912958,32cyclictest10000-21wget21:10:160
112309912957,51cyclictest16161-21runrttasks19:29:550
112309912957,34cyclictest29049-21wget22:25:120
112309912953,56cyclictest22299-21sendmail-msp22:00:020
112309912861,48cyclictest21659-21wget00:05:150
112309912856,20cyclictest13113-21memory23:30:320
112309912760,46cyclictest13809-21wget21:25:150
112309912757,34cyclictest31838-21diskstats20:30:240
112309912753,21cyclictest27053-21/usr/sbin/munin20:10:420
112309912668,19cyclictest16902-21users19:30:480
112309912665,20cyclictest1901-21df_inode20:40:190
112309912664,21cyclictest23833-21df22:05:170
112309912656,34cyclictest1305-21snmpd19:18:500
112309912656,32cyclictest20332-21wget00:00:120
112309912564,20cyclictest11998-21/usr/sbin/munin23:25:430
112309912556,33cyclictest7897-21wget23:10:140
112309912556,32cyclictest1305-21snmpd21:46:090
112309912555,51cyclictest17430-21/usr/sbin/munin21:40:310
112309912554,32cyclictest26597-21wget22:15:150
112309912462,20cyclictest24472-21memory20:00:340
112309912458,34cyclictest1305-21snmpd22:41:230
112309912458,33cyclictest1787-21diskstats22:45:240
112309912457,33cyclictest30771-21ntp_states20:25:390
112309912457,31cyclictest1276-21runrttasks23:43:260
112309912456,32cyclictest20099-21df21:50:180
112309912453,34cyclictest6758-21cat23:05:210
112309912375,38cyclictest28714-21wget00:30:150
112309912369,38cyclictest1570-21munin-run20:40:020
112309912273,38cyclictest15212-21chrt23:40:040
112309912258,21cyclictest22900-21chrt19:55:110
112309912167,40cyclictest10705-21ntp_states23:20:390
112309912161,20cyclictest30969-21munin-run00:40:020
112309912062,38cyclictest25418-21basename20:05:120
112309912060,41cyclictest25738-21wget00:20:170
112309912050,33cyclictest1305-21snmpd22:31:210
112309911866,41cyclictest29521-21awk20:20:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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