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2026-05-17 - 09:47
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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 Sat May 16, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26699220427,51sleep00-21swapper/007:06:520
2713699129106,13cyclictest0-21swapper/007:10:040
271369912843,33cyclictest1696-21ntp_states09:40:430
271369912381,32cyclictest2010-21node08:25:260
271369912362,21cyclictest13080-21seq12:30:540
271369912341,30cyclictest32668-21diskstats09:35:220
271369912248,55cyclictest11872-21scp12:26:450
271369912152,38cyclictest2582-21mailstats11:50:530
271369912149,36cyclictest4023-21fw_forwarded_lo09:50:280
271369912149,19cyclictest2283-21ntp_states07:36:200
271369912143,42cyclictest29225-21apt-get07:17:010
271369912076,35cyclictest31383-21gpgv07:25:180
271369912057,49cyclictest10250irq/56-4a10000011:45:140
271369911934,33cyclictest12912-21apt-get08:17:200
271369911887,22cyclictest9014-21if_err_eth010:10:280
271369911877,31cyclictest21266-21runrttasks08:50:420
271369911847,24cyclictest24486-21apt-get09:07:110
271369911744,35cyclictest1305-21snmpd09:25:180
271369911743,37cyclictest20217-21find08:45:480
271369911637,59cyclictest27439-21ps11:20:430
271369911557,46cyclictest10782-21chrt10:17:060
271369911554,40cyclictest21833-21seq11:00:490
271369911550,24cyclictest754-21systemd-journal08:00:010
271369911544,53cyclictest1338-21cat07:35:060
271369911465,37cyclictest28242-21apt-get09:17:080
271369911445,33cyclictest11656-21ntp_states10:20:390
271369911432,27cyclictest22351-21apt-get11:07:090
271369911371,33cyclictest17725-21seq10:45:270
271369911362,42cyclictest1305-21snmpd08:55:420
271369911347,48cyclictest8365-21wget12:15:140
271369911341,51cyclictest2010-21node08:40:270
271369911253,40cyclictest3629-21/usr/sbin/munin11:55:350
271369911245,32cyclictest13954-21/usr/sbin/munin12:35:300
271369911240,37cyclictest8651-21users08:00:500
271369911239,35cyclictest5989-21proc_pri07:50:430
271369911239,21cyclictest14134-21ntp_states10:30:380
271369911158,37cyclictest1276-21runrttasks11:35:070
271369911140,52cyclictest6139-21cron10:00:010
271369911139,34cyclictest2544-21/usr/sbin/munin09:45:180
271369911071,31cyclictest26067-21ntpq11:15:360
271369911036,20cyclictest12820-21memory10:25:330
271369911028,26cyclictest23976-21apt-get11:12:110
271369910965,33cyclictest31413-21df09:30:170
271369910944,21cyclictest28435-21diskstats11:25:210
271369910943,48cyclictest6835-21systemd12:09:310
271369910938,34cyclictest10712-21df_inode08:10:180
271369910868,32cyclictest16108-21cron10:40:010
271369910846,44cyclictest4334-21wget07:45:140
271369910844,45cyclictest30358-21sshd07:20:520
271369910842,36cyclictest9518-21fw_forwarded_lo08:05:280
271369910837,20cyclictest7917-21ntp_states10:05:420
271369910834,20cyclictest14009-21users08:20:480
271369910743,32cyclictest9741-21df12:20:170
271369910649,39cyclictest4741-21seq12:00:200
271369910646,20cyclictest7425-21ntp_states12:10:390
271369910637,35cyclictest23770-21awk09:00:420
271369910546,47cyclictest19851-21munin-plugin-st10:55:010
271369910539,48cyclictest3450-21ntp_states07:40:390
271369910472,22cyclictest17364-21cron10:45:000
271369910445,20cyclictest1305-21snmpd11:30:230
271369910444,20cyclictest17697-21sshd08:35:470
271369910355,38cyclictest20202-21fw_conntrack10:55:290
271369910229,54cyclictest28804-21wget09:20:140
271369910169,23cyclictest32605-21sshd11:40:570
271369910156,35cyclictest16404-21sendmail_mailst08:30:460
271369910154,36cyclictest1305-21snmpd10:00:320
271369910139,30cyclictest26621-21ntp_states09:10:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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