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2026-08-25 - 08:05
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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 Tue Aug 25, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1986224052159,191sleep00-21swapper18:58:510
22949910931,61cyclictest0-21swapper22:33:180
22949910610,56cyclictest1140-21df_abs23:02:070
22949910417,66cyclictest20219-21/usr/sbin/munin22:22:490
22949910417,49cyclictest29897-21apt-get22:51:410
22949910417,24cyclictest16804-21ntp_states22:12:530
22949910317,63cyclictest2593-21apt-get23:06:380
22949910316,25cyclictest1008-21df_inode21:27:100
22949910226,65cyclictest0-21swapper21:06:290
22949910214,66cyclictest2812-21/usr/sbin/munin21:32:220
22949910213,65cyclictest20210-21ssh00:01:380
22949910147,21cyclictest4524-21forks21:37:190
22949910117,65cyclictest9809-21ssh21:52:380
22949910117,64cyclictest13282-21memory22:02:520
22949910117,23cyclictest11788-21munin-run19:51:210
22949910113,26cyclictest8584-21timerwakeupswit23:23:010
22949910016,63cyclictest6790-21users21:43:100
22949910015,60cyclictest28115-21apt00:26:290
22949910015,47cyclictest22867-21munin-run00:11:210
22949910011,66cyclictest27399-21ssh00:23:210
2294999917,61cyclictest24713-21apt-get00:16:380
2294999917,61cyclictest15951-21ssh22:11:000
2294999916,46cyclictest24174-21users00:14:210
2294999913,64cyclictest29102-21ssh21:13:590
2294999911,46cyclictest28800-21ssh22:47:530
2294999812,28cyclictest25700-21ssh21:04:170
2294999812,26cyclictest25886-21ssh22:39:060
2294999810,25cyclictest672-21ssh23:01:070
2294999724,61cyclictest0-21swapper22:18:170
2294999717,23cyclictest6299-21df23:17:020
2294999714,63cyclictest21567-21df22:26:590
2294999714,21cyclictest3150-21users19:02:270
2294999713,64cyclictest9473-21sshd23:26:370
2294999711,63cyclictest11861-21ssh23:33:550
2294999710,48cyclictest27257-21grep22:42:590
2294999635,44cyclictest0-21swapper21:23:170
2294999629,49cyclictest0-21swapper23:42:130
2294999614,45cyclictest16806-21ssh23:51:450
2294999612,46cyclictest5715-21sh23:15:220
2294999515,60cyclictest30642-21users21:18:090
2294999514,22cyclictest7827-21df21:47:020
2294999513,59cyclictest4735-21wget19:11:410
2294999512,44cyclictest12998-21ssh23:37:060
2294999414,60cyclictest3559-21munin-node19:06:370
2294999412,24cyclictest14207-21snmpd23:51:070
2294999315,60cyclictest0-21swapper23:59:490
2294999311,62cyclictest11247-21ssh21:57:010
229499929,42cyclictest7236-21awk19:22:250
229499928,63cyclictest14447-21users20:02:270
2294999112,44cyclictest6420-21wc19:21:220
2294999112,43cyclictest8134-21sed19:27:260
2294999112,28cyclictest20719-21sed20:37:250
2294999111,59cyclictest10813-21grep19:42:250
2294999111,44cyclictest17671-21ls20:22:080
229499909,61cyclictest23925-21if_eth020:57:010
2294999034,18cyclictest0-21swapper19:51:440
2294998915,25cyclictest21797-21/usr/sbin/munin20:46:390
229499889,41cyclictest16036-21proc_pri20:12:190
2294998819,22cyclictest9477-21df_inode19:36:560
2294998818,27cyclictest16646-21sed20:16:520
2294998816,25cyclictest9107-21munin-run19:36:210
2294998723,19cyclictest0-21swapper20:26:410
2294998721,22cyclictest19443-21irqstats20:32:020
2294998716,23cyclictest22975-21df_inode20:51:550
2294998714,26cyclictest21735-21grep20:46:230
2294998614,24cyclictest13395-21/usr/sbin/munin19:57:220
2294998612,25cyclictest15041-21ntpq20:07:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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