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2026-07-20 - 21:12
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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 Jul 20, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23616217729,116sleep00-21swapper/019:06:100
241409911625,51cyclictest1408-21nginx20:46:490
241409910931,24cyclictest12703-21diskstats22:40:200
241409910730,28cyclictest9293-21apt-get20:18:160
241409910637,49cyclictest0-21swapper/000:09:570
241409910538,28cyclictest1408-21nginx21:11:550
241409910537,28cyclictest1408-21nginx22:51:380
241409910525,25cyclictest10253-21apt-get00:37:100
241409910451,35cyclictest18622-21if_eth020:55:290
241409910426,19cyclictest20727-21apt-get21:07:090
241409910422,32cyclictest31897-21df19:40:160
241409910417,35cyclictest19849-21apt-get23:12:080
241409910364,30cyclictest1496-21runrttasks00:01:220
241409910351,34cyclictest3650irq/20-4900000023:15:160
241409910259,31cyclictest31183-21/usr/sbin/munin23:51:150
241409910230,34cyclictest24858-21munin-run21:20:010
241409910221,22cyclictest5726-21apt-get00:18:160
241409910169,23cyclictest6761-21/usr/sbin/munin20:10:120
241409910137,24cyclictest12427-21chrt20:30:310
241409910129,53cyclictest32069-21wget23:55:170
241409910070,20cyclictest3940-21runrttasks00:10:490
241409910062,29cyclictest29459-21seq19:30:290
241409910035,45cyclictest17374-21sendmail-msp23:00:010
24140999935,47cyclictest1305-21snmpd23:41:360
24140999928,51cyclictest754-21systemd-journal19:40:000
24140999830,23cyclictest4481-21diskstats20:00:200
24140999730,24cyclictest10189-21df22:30:180
24140999728,50cyclictest754-21systemd-journal19:56:290
24140999723,37cyclictest5283-21if_eth022:10:290
24140999716,18cyclictest1285-21lldpd19:28:390
24140999635,42cyclictest1305-21snmpd22:17:020
24140999628,48cyclictest29842-21seq21:40:010
24140999628,36cyclictest9153-21ntp_states22:25:410
24140999625,20cyclictest2144-21awk19:50:370
24140999619,29cyclictest9556-21host00:31:570
24140999468,18cyclictest7561-21aten_r7power_en22:20:140
24140999451,33cyclictest31295-21cut21:45:140
24140999443,33cyclictest29967-21/usr/sbin/munin21:40:200
24140999355,30cyclictest19001-21if_eth023:05:310
24140999352,32cyclictest11407-21cpuspeed22:35:140
24140999352,30cyclictest4536-21runrttasks22:07:040
24140999347,35cyclictest14742-21wget20:40:150
24140999337,43cyclictest10946-21wget20:25:120
24140999237,39cyclictest0-21swapper/023:36:360
24140999223,35cyclictest691-21diskstats19:45:220
24140999163,20cyclictest366-21seq21:50:390
24140999152,30cyclictest17618-21grep23:00:200
24140999149,28cyclictest101ktimersoftd/020:08:520
24140999143,35cyclictest10822-21wc20:25:020
24140999125,31cyclictest13847-21wget22:45:140
24140999043,36cyclictest19906-21irqstats21:00:330
24140999030,22cyclictest6457-21chrt00:20:250
24140999029,46cyclictest29091-21/usr/sbin/munin23:45:120
24140999023,32cyclictest1305-21snmpd22:01:130
24140999019,32cyclictest7523-21wget00:25:150
24140998943,37cyclictest24504-21ntp_states23:25:400
24140998929,19cyclictest1276-21runrttasks21:30:450
24140998922,48cyclictest26285-21wget21:25:150
24140998842,35cyclictest17295-21df20:50:170
24140998828,19cyclictest26327-21sshd23:33:510
24140998822,47cyclictest1244-21/usr/sbin/munin21:55:120
24140998758,20cyclictest25462-21/usr/sbin/munin19:15:290
24140998742,35cyclictest24995-21cat21:20:130
24140998718,18cyclictest24863-21seq19:10:590
24140998660,19cyclictest26944-21seq19:20:270
24140998526,20cyclictest13577-21diskstats20:35:230
24140998517,17cyclictest23171-21irqstats23:20:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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