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2026-03-12 - 08:02
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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 Mar 12, 2026 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73228500,12sleep0733-21if_eth019:05:200
16999913386,37cyclictest15805-21/usr/sbin/munin20:05:320
16999912778,36cyclictest3410-21ntpq23:31:220
16999912075,36cyclictest9582-21irqstats19:40:300
16999912073,38cyclictest32372-21irqstats21:10:290
16999911974,37cyclictest5743-21df_inode19:25:180
16999911871,37cyclictest11459-21df_inode21:55:160
16999911784,23cyclictest1276-21runrttasks22:15:160
16999911774,33cyclictest12446-21ntp_states00:05:360
16999911772,34cyclictest17002-21/usr/sbin/munin20:10:280
16999911683,21cyclictest4514-21users21:26:370
16999911663,42cyclictest10412sleep021:15:160
16999911656,20cyclictest3423-21ntp_states19:15:410
16999911477,19cyclictest14536-21/usr/sbin/munin00:15:240
16999911180,21cyclictest2422-21apt-get23:30:030
16999911179,21cyclictest31580-21ntp_states23:15:380
16999910978,21cyclictest1276-21runrttasks00:13:070
16999910874,24cyclictest20134-21users00:35:450
16999910779,18cyclictest7423-21munin-run21:40:020
16999910778,19cyclictest4671-21df23:35:210
16999910777,21cyclictest27340-21fw_forwarded_lo20:50:290
16999910777,20cyclictest24916-21irqstats20:40:300
16999910763,33cyclictest18291-21/usr/sbin/munin00:30:410
16999910678,17cyclictest18281-21irqstats20:15:300
16999910677,20cyclictest29455-21cron21:00:010
16999910677,18cyclictest11970-21diskstats19:50:210
16999910675,21cyclictest31062-21fw_conntrack21:05:220
16999910675,20cyclictest21471-21fw_conntrack22:35:260
16999910662,34cyclictest6120-21memory23:40:320
16999910576,19cyclictest25288-21memory22:50:340
16999910574,21cyclictest7241-21ps19:30:410
16999910571,25cyclictest9138-21ntp_kernel_err21:45:350
16999910538,52cyclictest10250irq/56-4a10000021:30:120
16999910476,19cyclictest14133-21munin-run20:00:010
16999910476,18cyclictest30411-21sshd21:02:270
16999910473,21cyclictest19359-21swap22:25:530
16999910473,21cyclictest14647-21ntp_states20:00:380
16999910473,21cyclictest13995-21fw_conntrack22:05:240
16999910472,21cyclictest23340-21latency_hist20:35:040
16999910376,18cyclictest2583-21ntp_states21:20:450
16999910375,19cyclictest11128-21users19:45:480
16999910375,18cyclictest15034-21grep22:10:120
16999910374,20cyclictest11124-21chrt21:54:490
16999910372,20cyclictest8632-21users19:35:480
16999910274,20cyclictest26598-21ntp_states22:55:380
16999910273,20cyclictest13106-21swap22:00:450
16999910173,20cyclictest23944-21diskstats22:45:220
16999910171,21cyclictest20907-21apt-key20:25:190
16999910070,20cyclictest7747-21df_inode21:40:200
16999910068,22cyclictest10658-21cron00:00:020
1699999973,18cyclictest26098-21fw_forwarded_lo20:45:270
1699999971,20cyclictest17712-21df_inode22:20:170
1699999971,19cyclictest2093-21irqstats19:10:310
1699999871,18cyclictest11114-21irqstats00:00:280
1699999869,20cyclictest8460-21cpuspeed23:50:180
1699999771,17cyclictest7437-21ntp_states23:45:400
1699999769,19cyclictest23203-21chrt22:41:320
1699999768,20cyclictest1276-21runrttasks19:23:460
1699999668,19cyclictest28895-21df23:05:150
1699999568,19cyclictest16618-21seq00:22:190
1699999366,19cyclictest19491-21fw_forwarded_lo20:20:250
1699999255,29cyclictest23753-21ntp_states20:35:400
1699999128,45cyclictest1305-21snmpd00:26:350
1699998438,36cyclictest30889-21runrttasks23:13:270
169999837,35cyclictest754-21systemd-journal23:22:190
1699998354,21cyclictest20295-21irqstats22:30:300
1699998255,18cyclictest27771-21irqstats23:00:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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