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2026-05-21 - 14:53
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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 Thu May 21, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7217991729,144cyclictest12772-21diskstats23:45:370
7217991679,105cyclictest23750-21apt-get20:17:210
72179916340,106cyclictest10250irq/56-4a10000020:05:120
72179916255,88cyclictest10150irq/55-4a10000019:26:090
7217991618,115cyclictest6212-21irqstats23:20:270
7217991607,135cyclictest7571-21sshd21:17:100
7217991605,103cyclictest17466-21chrt00:02:150
7217991596,132cyclictest1305-21snmpd00:06:410
72179915741,105cyclictest12174-21apt-get19:30:410
6253215716,116sleep06256-21fw_conntrack19:05:210
7217991565,133cyclictest10413-21latency_hist21:30:010
7217991557,107cyclictest15391-21ntp_states23:55:390
7217991556,126cyclictest28394-21ntp_states20:30:420
7217991538,130cyclictest29621-21ntp_states20:35:390
72179915350,92cyclictest29954-21/usr/sbin/munin22:45:350
72179915332,104cyclictest10250irq/56-4a10000021:31:010
72179915326,110cyclictest12038-21http23:45:040
72179915322,109cyclictest1305-21snmpd23:31:300
7217991529,98cyclictest749-21apt23:00:020
7217991527,91cyclictest7513-21diskstats19:10:240
7217991527,105cyclictest20443-21wget00:15:090
7217991527,101cyclictest4606-21memory21:05:320
7217991526,105cyclictest12900-21apt-get21:42:100
72179915233,106cyclictest26268-21ntpq22:30:420
7217991519,123cyclictest2179-21/usr/sbin/munin23:05:370
7217991507,122cyclictest31046-21diskstats22:50:210
7217991506,122cyclictest1305-21snmpd00:31:460
72179915046,89cyclictest8950irq/40-mmc121:40:010
72179915021,92cyclictest1408-21nginx22:37:030
7217991498,90cyclictest14353-21/usr/sbin/munin19:35:470
7217991498,106cyclictest23254-21munin-run22:20:010
7217991497,122cyclictest1305-21snmpd00:29:270
7217991496,126cyclictest15926-21wget21:50:120
72179914926,111cyclictest17530-21ntp_states21:55:420
7217991487,103cyclictest7411-21fw_packets23:25:280
7217991487,100cyclictest13971-21diskstats23:50:210
7217991486,103cyclictest31615-21latency_hist20:45:020
72179914829,101cyclictest20354-21diskstats20:00:200
72179914811,103cyclictest4674-21wget23:15:090
7217991479,99cyclictest1906-21wget20:55:150
7217991479,100cyclictest2059-21munin-run23:05:020
7217991478,102cyclictest6315-21sshd21:12:060
72179914738,97cyclictest19200-21runrttasks00:10:110
72179914727,109cyclictest1408-21nginx20:25:520
7217991468,101cyclictest3144-21wget21:00:140
7217991467,119cyclictest19270-21seq22:02:590
7217991467,101cyclictest21055-21df22:10:150
72179914639,97cyclictest9942-21runrttasks23:35:290
72179914630,105cyclictest10024-21/usr/sbin/munin19:20:210
7217991458,94cyclictest9309-21apt-get19:17:080
7217991457,118cyclictest22642-21hostname20:10:110
7217991456,118cyclictest16470-21wget19:45:120
7217991449,105cyclictest26500-21sshd00:36:100
7217991448,123cyclictest24820-21chrt22:25:170
7217991448,104cyclictest19632-21/usr/sbin/munin22:05:440
7217991447,83cyclictest835-21memory20:50:310
7217991447,116cyclictest14969-21memory21:45:330
7217991446,119cyclictest17856-21diskstats19:50:190
72179914444,90cyclictest15751-21mailstats19:40:490
72179914441,93cyclictest9178-21apt21:25:020
72179914420,106cyclictest21688-21/usr/sbin/munin00:20:120
72179914336,96cyclictest283942chrt22:40:120
7217991418,120cyclictest3443-21/usr/sbin/munin23:10:110
7217991418,120cyclictest1305-21snmpd22:20:280
7217991418,115cyclictest32098-21/usr/sbin/munin20:45:350
7217991399,111cyclictest19201-21runrttasks19:55:320
7217991398,90cyclictest25728-21diskstats20:20:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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