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2026-04-06 - 16:00
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Mon Apr 06, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30583220327,51sleep00-21swapper/019:05:510
311399911241,52cyclictest29405-21awk21:05:410
311399911048,41cyclictest754-21systemd-journal00:29:580
311399910935,37cyclictest10938-21munin-run22:00:020
311399910874,24cyclictest17417-21sshd00:30:190
311399910834,35cyclictest762-21apt-get19:17:040
311399910746,22cyclictest24460-21grep22:50:450
311399910735,36cyclictest26386-21cat23:00:080
311399910734,34cyclictest11659-21df00:10:200
311399910655,35cyclictest3650irq/20-4900000000:35:370
311399910640,46cyclictest23531-21wget20:45:160
311399910635,36cyclictest11465-21ntp_states22:00:420
311399910631,22cyclictest15938-21apt-get22:17:200
311399910547,45cyclictest27650-21chrt21:00:020
311399910531,20cyclictest13738-21df22:10:200
311399910528,21cyclictest11529-21apt-get20:02:080
311399910355,28cyclictest25236-21wget22:55:110
311399910341,47cyclictest1408-21nginx22:43:120
311399910257,35cyclictest1-21systemd20:37:410
311399910158,34cyclictest4328-21/usr/sbin/munin23:40:390
311399910143,39cyclictest1408-21nginx00:09:050
311399910142,42cyclictest4111-21memory19:30:320
311399910128,36cyclictest754-21systemd-journal19:57:270
311399910058,31cyclictest8801-40ogrotate00:00:010
311399910043,43cyclictest1305-21snmpd23:11:290
311399910030,51cyclictest1568-21/usr/sbin/munin21:25:120
311399910030,50cyclictest13399-21wget20:05:150
31139999957,29cyclictest18030-21ntpq22:25:360
31139999954,36cyclictest14770-21if_err_eth020:10:270
31139999942,39cyclictest1276-21runrttasks21:20:480
31139999931,47cyclictest7868-21ps21:46:260
31139999926,36cyclictest1305-21snmpd00:16:500
31139999922,22cyclictest13848-21apt-get00:22:120
31139999856,31cyclictest9608-21runrttasks19:52:330
31139999848,35cyclictest3650irq/20-4900000020:50:450
31139999840,19cyclictest5401-21awk23:45:260
31139999839,39cyclictest27986-21chrt21:00:240
31139999832,34cyclictest23138-21/usr/sbin/munin20:45:040
31139999762,25cyclictest6161-21cron19:40:000
31139999760,27cyclictest1319-21latency_hist23:30:030
31139999727,32cyclictest1480-21munin-node22:05:100
31139999668,19cyclictest20397-21runrttasks22:35:290
31139999667,22cyclictest8884-21seq21:50:340
31139999666,20cyclictest8009-21runrttasks19:45:510
31139999661,24cyclictest22880-21fw_conntrack22:45:260
31139999649,36cyclictest6649-21diskstats23:50:240
31139999641,44cyclictest3083-21chrt23:35:380
31139999629,48cyclictest6808-21/usr/sbin/munin19:40:440
31139999625,18cyclictest1658-21diskstats23:30:220
31139999624,35cyclictest1305-21snmpd22:31:190
31139999620,22cyclictest3944-21apt-get21:37:070
31139999564,23cyclictest19236-21runrttasks20:28:410
31139999564,22cyclictest31223-21/usr/sbin/munin19:10:280
31139999554,33cyclictest16997-21latency_hist20:20:040
31139999544,34cyclictest1421-21seq19:20:150
31139999542,38cyclictest1305-21snmpd00:01:480
31139999531,31cyclictest1276-21runrttasks21:32:340
31139999528,29cyclictest1608-21ntpd20:30:350
31139999453,32cyclictest5788-21aten_r7power_po21:40:130
31139999450,34cyclictest27625-21/usr/sbin/munin23:05:280
31139999427,35cyclictest30449-21diskstats21:10:230
31139999334,20cyclictest2795-21fw_forwarded_lo19:25:260
31139999326,32cyclictest31263-21munin-run23:20:020
31139999324,32cyclictest1305-21snmpd22:21:180
31139999245,38cyclictest1305-21snmpd20:20:130
31139999132,43cyclictest0-21swapper/023:20:140
31139998950,28cyclictest31514-21aten_r7power_en21:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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