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2025-11-17 - 02:17
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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 50 highest latencies:
System rack5slot7.osadl.org (updated Sun Nov 16, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19892224352190,96sleep00-21swapper05:40:510
199699910844,21cyclictest6578-21ssh10:51:400
199699910519,24cyclictest23453-21ssh10:04:010
199699910317,65cyclictest25838-21df10:11:590
199699910222,40cyclictest17787-21df_inode09:47:040
199699910216,64cyclictest31147-21memory08:47:280
199699910214,66cyclictest5018-21df_inode09:07:060
199699910214,22cyclictest14511-21ssh07:56:040
199699910212,25cyclictest4263-21ssh09:04:360
199699910210,27cyclictest21785-21snmpd08:34:360
199699910117,63cyclictest32637-21fw_conntrack08:52:150
199699910016,45cyclictest29545-21memory08:42:310
199699910013,66cyclictest32173-21apt-get10:31:420
199699910012,26cyclictest1869-21ssh10:37:250
199699910012,24cyclictest6969-21/usr/sbin/munin09:12:570
199699910011,29cyclictest21785-21snmpd09:51:390
199699910010,53cyclictest15178-21ssh09:37:590
19969999918,37cyclictest11426-21apt-get07:46:380
19969999917,63cyclictest20344-21users08:13:020
19969999912,67cyclictest30566-21ssh10:26:450
19969999911,26cyclictest4117-21ssh10:43:180
19969999839,20cyclictest20729-21apt-get09:56:280
19969999825,25cyclictest8688-21grep07:32:200
19969999818,43cyclictest27554-21fw_conntrack10:17:140
19969999817,61cyclictest16623-21fw_conntrack08:02:120
19969999817,42cyclictest1415-21apt-get08:56:390
19969999815,44cyclictest12597-21users11:08:110
19969999810,65cyclictest8507-21ls10:56:590
19969999726,59cyclictest0-21swapper09:28:200
19969999718,59cyclictest16139-21munin-run08:01:150
19969999716,35cyclictest12962-21df_inode09:32:030
19969999715,44cyclictest23254-21grep08:22:370
19969999715,43cyclictest28873-21ssh08:41:050
19969999715,43cyclictest19274-21latency_hist08:11:200
19969999710,50cyclictest6010-21ssh10:49:150
19969999633,47cyclictest0-21swapper10:24:350
19969999617,43cyclictest24815-21ssh08:27:360
19969999613,29cyclictest10028-21/usr/sbin/munin11:01:450
19969999611,25cyclictest9844-21ssh09:22:160
19969999610,65cyclictest6189-21wget07:21:340
19969999541,36cyclictest28417-21switchtime06:22:160
19969999536,38cyclictest16448-21ntp_states09:42:430
19969999525,47cyclictest0-21swapper07:38:130
19969999517,60cyclictest10139-21df_inode07:42:040
19969999516,41cyclictest22588-21df05:51:420
19969999515,62cyclictest21299-21df08:16:540
19969999515,60cyclictest25437-21munin-run10:11:140
19969999515,41cyclictest7861-21munin-run07:31:130
19969999512,62cyclictest8658-21ssh09:17:550
19969999426,59cyclictest0-21swapper06:59:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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