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2025-10-27 - 10:22
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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 Oct 27, 2025 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23295215497,28sleep00-21swapper/019:07:400
236429913362,49cyclictest760-21systemd-journal19:28:280
236429913359,39cyclictest3963-21sshd00:10:300
236429912764,46cyclictest32513-21wget21:50:200
236429912745,36cyclictest24188-21apt-get21:18:130
236429912742,26cyclictest31098-21apt-get19:42:100
236429912555,51cyclictest29096-21runrttasks21:37:290
236429912452,34cyclictest7173-21df22:15:230
236429912378,35cyclictest5315-21apt-key22:10:160
236429912376,37cyclictest18444-21diskstats23:00:200
236429912249,38cyclictest25677-21pluginstate21:25:020
236429912160,47cyclictest1356-21snmpd21:43:560
236429912159,44cyclictest1424-21nginx22:58:170
236429912152,49cyclictest15142-21seq20:43:450
236429912147,39cyclictest18293-21ntp_states20:55:420
236429912141,23cyclictest26851-21apt-get23:37:100
236429912048,53cyclictest12303-21runrttasks22:35:320
236429911976,34cyclictest1580-21sshd00:00:400
236429911950,50cyclictest760-21systemd-journal22:40:290
236429911852,45cyclictest760-21systemd-journal19:33:370
236429911846,54cyclictest1356-21snmpd19:23:260
236429911846,35cyclictest1211-21/usr/sbin/munin21:55:160
236429911670,36cyclictest31353-21if_err_eth023:50:280
236429911656,46cyclictest10250irq/56-4a10000022:03:270
236429911654,22cyclictest10731-21chrt20:25:310
236429911651,23cyclictest25733-21apt-get19:17:050
236429911645,36cyclictest1356-21snmpd23:21:210
236429911630,35cyclictest16853-21df20:50:180
236429911573,33cyclictest760-21systemd-journal20:05:000
236429911557,42cyclictest16642-21chrt20:50:040
236429911545,35cyclictest1356-21snmpd00:21:370
236429911545,34cyclictest1356-21snmpd20:08:370
236429911543,52cyclictest1356-21snmpd23:11:200
236429911542,36cyclictest19722-21fw_forwarded_lo23:05:280
236429911541,38cyclictest1356-21snmpd20:38:440
236429911471,33cyclictest16123-21ntp_states22:50:400
236429911446,49cyclictest1356-21snmpd21:33:550
236429911444,37cyclictest19716-21/usr/sbin/munin21:00:470
236429911444,35cyclictest9105-21ntp_states00:30:390
236429911443,32cyclictest1356-21snmpd22:29:070
236429911367,36cyclictest28936-21memory23:40:360
236429911348,24cyclictest11080-21cron00:40:020
236429911347,33cyclictest12799-21munin-run20:35:020
236429911344,36cyclictest1356-21snmpd00:16:360
236429911342,35cyclictest14615-21chrt22:45:160
236429911270,32cyclictest24781-21interrupts23:25:320
236429911252,20cyclictest9323-21runrttasks22:24:290
236429911252,19cyclictest1356-21snmpd23:55:430
236429911249,30cyclictest8679-21apt-get20:17:080
236429911245,48cyclictest4199-21chrt22:05:470
236429911167,35cyclictest3128-21df_inode19:55:200
236429911150,20cyclictest9428-21fw_forwarded_lo20:20:270
236429911072,28cyclictest1336-21runrttasks19:10:230
236429911060,35cyclictest3650irq/20-4900000023:45:480
236429910960,38cyclictest453-21wget19:45:150
236429910948,22cyclictest22359-21ntp_states23:15:410
236429910947,45cyclictest7885-21runrttasks00:25:430
236429910942,32cyclictest2493-21cut00:05:130
236429910938,30cyclictest26188-21ntp_states21:25:430
236429910878,21cyclictest26915-21apt-config23:35:060
236429910855,41cyclictest10991-21fw_forwarded_lo22:30:290
236429910841,34cyclictest2076-21ntp_states19:50:400
236429910742,47cyclictest29969-21runrttasks19:35:130
236429910736,36cyclictest1356-21snmpd21:13:510
236429910662,34cyclictest31177-21ntp_states21:45:410
236429910640,30cyclictest20439-21seq21:05:130
236429910559,36cyclictest6740-21aten_r7power_po20:10:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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