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2026-04-12 - 13:38
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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 Apr 11, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
445428080,11sleep04455-21aten_r7power_cu07:05:120
56149912735,36cyclictest18795-21diskstats08:00:380
56149912538,32cyclictest25243-21diskstats10:30:220
56149912346,22cyclictest20018-21fw_conntrack08:05:250
56149912065,36cyclictest804-21wpa_supplicant08:15:130
56149912050,36cyclictest22346-21fw_forwarded_lo12:25:440
56149911961,40cyclictest1305-21snmpd09:40:480
56149911856,43cyclictest2010-21node08:39:490
56149911776,33cyclictest18176-21apt-config08:00:100
56149911744,39cyclictest23403-21apt-get08:22:120
56149911644,34cyclictest11195-21munin-run11:45:050
56149911640,22cyclictest15639-21diskstats12:00:240
56149911629,50cyclictest13124-21df11:50:180
56149911573,33cyclictest9616-21runrttasks07:25:150
56149911572,34cyclictest21905-21latency_hist12:25:030
56149911559,42cyclictest1408-21nginx09:59:580
56149911542,52cyclictest754-21systemd-journal09:20:010
56149911447,49cyclictest754-21systemd-journal12:09:510
56149911444,32cyclictest23293-21apt-get10:25:350
56149911373,30cyclictest27237-21runrttasks10:38:440
56149911347,32cyclictest32686-21df11:00:130
56149911240,52cyclictest9929-21cron11:40:020
56149911167,34cyclictest6367-21cut11:25:100
56149911141,35cyclictest1305-21snmpd09:45:180
56149911140,51cyclictest11355-21/usr/sbin/munin09:35:430
56149911138,54cyclictest1305-21snmpd12:31:120
56149911137,20cyclictest21108-21diskstats10:15:220
56149911041,49cyclictest32399-21runrttasks11:00:030
56149911041,27cyclictest13480-21interrupts07:40:300
56149911025,33cyclictest22468-21irqstats10:20:310
56149910970,29cyclictest7690-21runrttasks07:16:540
56149910940,32cyclictest21141-21wget08:10:140
56149910874,24cyclictest10490-21seq09:32:090
56149910871,28cyclictest2227-21ntp_offset09:00:390
56149910865,32cyclictest2945-21ntpq11:10:320
56149910846,48cyclictest28983-21wget08:40:140
56149910845,22cyclictest1829-21/usr/sbin/munin11:05:420
56149910776,22cyclictest4005-21runrttasks11:15:150
56149910762,35cyclictest5889-21seq07:10:170
56149910743,49cyclictest1408-21nginx11:31:440
56149910743,47cyclictest3650irq/20-4900000010:50:170
56149910740,48cyclictest5139-21wget11:20:100
56149910739,49cyclictest1305-21snmpd07:49:470
56149910738,33cyclictest1305-21snmpd10:05:250
56149910730,34cyclictest25547-21ntp_states08:25:400
56149910675,22cyclictest8330-21runrttasks09:25:270
56149910662,34cyclictest14362-21df11:55:180
56149910636,33cyclictest32200-21ntpq08:51:080
56149910631,38cyclictest29168-21ntp_states10:45:430
56149910629,21cyclictest11193-21apt-get11:47:130
56149910544,42cyclictest15092-21ntp_states09:50:470
56149910544,21cyclictest19945-21apt-get12:17:060
56149910536,30cyclictest7243-21ntp_states09:20:430
56149910462,30cyclictest18306-21munin-plugin-st10:05:010
56149910459,35cyclictest11930-21seq07:35:120
56149910459,32cyclictest31269-21http08:50:040
56149910440,46cyclictest0-21swapper/008:55:210
56149910439,35cyclictest3472-21ntp_states09:05:390
56149910364,30cyclictest10788-21aten_r7power_vo07:30:140
56149910354,38cyclictest27232-21seq08:32:370
56149910342,19cyclictest801-21dbus-daemon09:10:460
56149910319,30cyclictest18165-21fw_forwarded_lo12:10:240
56149910240,21cyclictest27728-21df_inode10:40:180
56149910239,30cyclictest1276-21runrttasks12:35:450
56149910143,46cyclictest19866-21diskstats10:10:230
56149910141,20cyclictest8225-21hostname07:20:120
5614999945,42cyclictest15857-21df07:50:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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