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2026-07-27 - 10:56
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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 Sun Jul 26, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30778220117,45sleep00-21swapper/007:06:170
312879914079,45cyclictest32476-21seq07:14:570
312879913562,54cyclictest8305-21sh09:55:010
312879913155,55cyclictest14906-21/usr/sbin/munin10:20:230
312879912859,50cyclictest801-21dbus-daemon07:20:010
312879912768,42cyclictest18234-21latency_hist12:40:050
312879912757,31cyclictest1408-21nginx11:59:430
312879912754,19cyclictest1243-21irqstats09:25:310
312879912753,37cyclictest10083-21seq10:00:390
312879912752,39cyclictest5101-21ntp_states09:40:410
312879912665,42cyclictest17213-21wget10:30:130
312879912655,18cyclictest24062-21irqstats10:55:320
312879912572,33cyclictest27909-21wget11:10:190
312879912552,32cyclictest801-21dbus-daemon12:27:460
312879912467,37cyclictest1276-21runrttasks11:50:270
312879912454,34cyclictest5372-21df07:35:160
312879912449,24cyclictest801-21dbus-daemon12:09:550
312879912351,19cyclictest22454-21fw_forwarded_lo08:40:460
312879912350,20cyclictest16110-21df10:25:180
312879912347,36cyclictest2834-21apt11:40:010
312879912256,47cyclictest20778-21apt10:45:010
312879912253,48cyclictest30845-21ps11:20:420
312879912250,36cyclictest1305-21snmpd07:30:570
312879912250,20cyclictest754-21systemd-journal11:30:530
312879912160,43cyclictest22759-21sshd10:50:260
312879912155,46cyclictest18796-21ntpq10:35:420
312879912152,52cyclictest20363-21sshd08:35:140
312879912149,33cyclictest23517-21wget08:45:130
312879912146,21cyclictest9137-21diskstats07:50:220
312879912061,38cyclictest26492-21fw_conntrack11:05:260
312879912050,51cyclictest2264-21wget09:30:130
312879912049,35cyclictest12667-21/usr/sbin/munin08:05:220
312879912048,35cyclictest27383-21fw_conntrack09:00:280
312879912047,36cyclictest15914-21apt-get08:17:060
312879911971,38cyclictest20778-21apt-get10:47:090
312879911959,47cyclictest20054-21wc08:35:040
312879911953,24cyclictest7892-21diskstats07:45:210
312879911946,19cyclictest16627-21diskstats08:20:220
312879911850,33cyclictest11122-21df_inode10:05:190
312879911848,32cyclictest25036-21ntp_states08:50:400
312879911762,36cyclictest3469-21basename09:35:140
312879911762,36cyclictest1305-21snmpd09:06:200
312879911677,30cyclictest13964-21cut08:10:120
312879911649,48cyclictest30951-21wget09:15:160
312879911639,50cyclictest10150irq/55-4a10000011:18:560
312879911566,31cyclictest11158-21chrt07:58:570
312879911554,45cyclictest1568-21wget07:20:130
312879911554,26cyclictest6178-21fw_conntrack09:45:260
312879911554,21cyclictest11925-21fw_conntrack12:15:260
312879911546,34cyclictest16110-21chrt12:30:280
312879911546,33cyclictest3378-21awk11:40:420
312879911473,30cyclictest787-21haveged12:00:290
312879911470,31cyclictest5263-21seq11:49:300
312879911452,43cyclictest754-21systemd-journal11:29:260
312879911445,18cyclictest8817-21ntp_states09:55:370
312879911370,33cyclictest10826-21grep12:10:360
312879911244,48cyclictest26079-21sh08:55:190
312879911163,38cyclictest754-21systemd-journal10:20:010
312879911144,48cyclictest18756-21seq08:29:530
312879911142,32cyclictest12196-21wget10:10:140
312879911079,21cyclictest25951-21sshd11:03:260
312879911066,38cyclictest32337-21df_inode09:20:200
312879911040,20cyclictest11785-21ntpq08:00:360
312879910979,21cyclictest6851-21runrttasks07:40:420
312879910959,38cyclictest3110-21runrttasks07:25:420
312879910949,21cyclictest30742-21cron09:15:000
312879910844,33cyclictest13353-21ntp_states12:20:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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