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2026-07-16 - 13:33
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Thu Jul 16, 2026 00:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15703243640,26sleep014035-1kworker/u3:019:02:460
157949914172,48cyclictest7997-21ssh22:46:110
157949914070,46cyclictest1534-21ssh22:28:180
157949913966,49cyclictest15534-21df_inode21:34:100
157949913863,35cyclictest4814-21apt-get21:03:390
157949913768,46cyclictest19283-21/usr/sbin/munin21:44:520
157949913662,50cyclictest5808-21irqstats00:14:260
157949913566,46cyclictest6542-21apt-get21:08:410
157949913563,49cyclictest22612-21memory21:54:380
157949913380,34cyclictest21510-21unixbench_singl23:25:040
157949913380,31cyclictest12005-21df21:24:050
157949913376,34cyclictest3910-21ssh00:09:040
157949913279,35cyclictest4683-21diskmemload21:42:460
157949913264,46cyclictest17639-21irqstats23:14:310
157949913174,35cyclictest27482-21ssh23:43:300
157949913168,42cyclictest9221-21irqstats00:24:220
157949913163,33cyclictest31470-21sh23:54:400
157949913067,46cyclictest12001-21ssh00:32:530
157949912976,31cyclictest1156-21apt-get20:43:330
157949912976,30cyclictest22330-21apt-get23:28:340
157949912975,34cyclictest2768-21sort00:05:040
157949912875,32cyclictest24404-21df_inode23:34:130
157949912873,33cyclictest31427-21ssh22:19:570
157949912872,35cyclictest1721-21cut22:28:480
157949912870,37cyclictest32640-21ssh23:58:260
157949912862,45cyclictest19239-21df_inode23:19:100
157949912857,48cyclictest20977-21sh21:49:490
157949912781,27cyclictest25821-21df_abs22:04:060
157949912766,45cyclictest12612-21ssh22:59:470
157949912673,32cyclictest4971-21ssh22:38:100
157949912673,32cyclictest23512-21ls19:44:230
157949912671,33cyclictest13987-21memory21:29:390
157949912670,31cyclictest21318-21fw_conntrack19:33:560
157949912576,26cyclictest10730-21irqstats22:54:260
157949912575,27cyclictest8944-21fw_conntrack22:49:230
157949912570,33cyclictest26400-21ntpq23:39:500
157949912570,32cyclictest23753-21aten_r5power_en19:48:390
157949912568,34cyclictest22140-21df_abs19:38:490
157949912565,37cyclictest32728-21/usr/sbin/munin20:39:070
157949912563,44cyclictest15609-21ssh23:08:540
157949912472,31cyclictest2987-21/usr/sbin/munin20:54:160
157949912471,33cyclictest11627-21ls21:23:220
157949912470,35cyclictest24337-21memory21:59:400
157949912469,33cyclictest29708-21/usr/sbin/munin22:14:550
157949912465,44cyclictest9698-21ssh21:17:240
157949912369,32cyclictest8084-21ssh00:20:230
157949912369,32cyclictest29635-21sh23:49:240
157949912272,31cyclictest25522-21/usr/sbin/munin19:58:430
157949912269,31cyclictest24967-21irqstats19:54:030
157949912262,40cyclictest14258-21memory23:04:440
157949912170,31cyclictest32546-21grep20:34:220
157949912169,31cyclictest27391-21egrep22:08:530
157949912169,31cyclictest20273-21grep19:28:440
157949912164,34cyclictest26583-21awk20:03:420
157949912073,26cyclictest28506-21df_inode20:13:520
157949912070,30cyclictest5130-21apt-get22:38:470
157949911770,25cyclictest17721-21fw_conntrack19:13:580
157949911673,23cyclictest27605-21/usr/sbin/munin20:08:590
157949911671,25cyclictest4776-21latency_hist21:03:240
157949911664,32cyclictest19898-21ls19:24:220
157949911069,25cyclictest2294-21df_abs20:48:490
157949911061,34cyclictest6450irq/45-2188000.20:20:410
157949910959,32cyclictest30022-21apt-get20:23:300
157949910764,24cyclictest18667-21irqstats19:19:010
157949910663,24cyclictest31131-21df20:28:480
157949910459,29cyclictest6450irq/45-2188000.19:03:540
157949910357,30cyclictest6450irq/45-2188000.19:08:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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