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2025-12-02 - 16:46
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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 50 highest latencies:
System rackeslot4.osadl.org (updated Tue Dec 02, 2025 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1257641994640,4cyclictest1545197-21fwupd11:18:132
125764199341,21cyclictest1495523-21df10:40:142
1257641993329,2cyclictest0-21swapper/209:20:162
125764199330,23cyclictest1571874-21sort11:40:202
125764199321,22cyclictest1361378-21apt-get08:50:132
1257641993117,4cyclictest1495045-21sh10:39:592
125764199311,3cyclictest1278568-21apt-get07:30:152
125764199310,21cyclictest0-21swapper/210:25:152
125764199301,2cyclictest1381377-21diskmemload10:06:002
125764199300,3cyclictest1594391-21ntpq11:55:222
1257643992817,2cyclictest191rcu_preempt09:49:373
1257641992820,2cyclictest1268460-21apt-get07:20:122
1257641992819,1cyclictest0-21swapper/211:37:102
125764199281,2cyclictest1381377-21diskmemload10:46:372
125764199280,21cyclictest1437361-21ssh09:53:432
1257641992719,1cyclictest0-21swapper/211:32:102
1257641992717,3cyclictest1273507-21apt-get07:25:122
125764199271,2cyclictest1381377-21diskmemload09:17:132
125764199271,2cyclictest1381377-21diskmemload09:17:122
125764199270,21cyclictest1645548-21ssh12:36:172
125764199270,21cyclictest1600740-21ps12:00:222
125764199270,21cyclictest1381377-21diskmemload12:26:412
1257643992622,3cyclictest1583670-21ls11:50:003
1257643992622,3cyclictest1583670-21ls11:49:593
125764399261,21cyclictest1387956-21apt-get09:15:143
125764399261,21cyclictest1387956-21apt-get09:15:133
1257641992619,2cyclictest1381377-21diskmemload11:02:072
1257641992619,1cyclictest0-21swapper/211:25:482
1257641992615,2cyclictest1366433-21apt-get08:55:152
125764199261,3cyclictest1621761-21apt-get12:20:142
125764199261,2cyclictest1381377-21diskmemload10:50:432
125764199261,22cyclictest1425515-21apt-get09:45:122
125764199260,23cyclictest1315534-21taskset08:05:152
125763699261,21cyclictest1381377-21diskmemload11:25:111
125763699261,21cyclictest0-21swapper/111:15:131
125763399260,24cyclictest1421498-21/usr/sbin/munin09:40:180
125764399251,21cyclictest1406897-21df_inode09:30:133
125764199252,20cyclictest1400497-21apt-get09:25:132
1257641992520,3cyclictest1419209-21apt-get09:40:132
125764199251,21cyclictest1546111-21ssh11:20:122
125764199251,21cyclictest1381377-21diskmemload11:50:062
125764199251,21cyclictest0-21swapper/208:30:192
125764199250,23cyclictest1518995-21ssh10:56:022
125764199250,22cyclictest1299547-21sed07:50:022
125763699252,21cyclictest1406734-21apt-get09:30:121
1257636992520,3cyclictest1615153-21turbostat12:15:011
1257636992519,5cyclictest1585623-21grep11:50:191
125763699251,22cyclictest1565573-21irqcore11:35:171
125763699251,21cyclictest0-21swapper/111:50:001
125763699251,21cyclictest0-21swapper/111:50:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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