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2025-07-19 - 11:01
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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 all highest latencies:
System rack5slot7.osadl.org (updated Sat Jul 19, 2025 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24560225260,13sleep022716-1kworker/u3:017:42:260
258749910613,70cyclictest5007-21/usr/sbin/munin20:53:170
258749910515,74cyclictest0-21swapper21:06:490
258749910427,61cyclictest0-21swapper20:15:210
258749910418,65cyclictest1059-21apt-get22:17:320
258749910416,70cyclictest18068-21munin-run21:32:100
258749910334,51cyclictest0-21swapper22:45:400
258749910315,50cyclictest17194-21ssh23:04:480
258749910242,44cyclictest26150-21sh20:19:110
258749910233,55cyclictest13361-21grep22:53:290
258749910214,71cyclictest0-21swapper20:09:010
258749910117,23cyclictest14835-21fw_conntrack22:58:080
258749910035,41cyclictest19229-21ssh23:11:540
258749910028,55cyclictest0-21swapper19:57:400
258749910018,45cyclictest436-21users20:39:000
258749910017,64cyclictest3396-21ssh22:23:400
258749910017,60cyclictest32336-21memory22:13:280
258749910015,24cyclictest21219-21ssh21:40:530
25874999917,61cyclictest3299-21fw_conntrack20:48:170
25874999914,63cyclictest6344-21ssh20:57:230
25874999816,64cyclictest18457-21df21:32:520
25874999816,62cyclictest11409-21apt-get21:12:320
25874999814,24cyclictest26861-21/usr/sbin/munin20:23:550
25874999813,36cyclictest20765-21/usr/sbin/munin20:03:480
25874999811,26cyclictest19818-21if_eth023:13:140
25874999810,26cyclictest6158-21ssh22:32:180
25874999723,56cyclictest0-21swapper20:29:400
25874999718,58cyclictest15162-21df_inode21:23:030
25874999717,59cyclictest4927-21irqstats22:28:210
25874999716,45cyclictest1554-21df_inode20:43:010
25874999715,60cyclictest13504-21fw_conntrack21:18:150
25874999631,49cyclictest0-21swapper21:10:230
25874999616,60cyclictest28863-21irqstats22:03:180
25874999616,59cyclictest30244-21apt20:32:180
25874999616,59cyclictest21607-21apt-get21:42:250
25874999616,48cyclictest0-21swapper22:07:160
25874999615,23cyclictest24232-21users21:48:540
25874999614,61cyclictest16972-21fw_conntrack19:53:070
25874999528,49cyclictest0-21swapper19:52:060
25874999518,22cyclictest11538-21fw_conntrack22:48:090
25874999516,21cyclictest8755-21ssh22:38:550
25874999515,59cyclictest26591-21munin-run21:57:100
25874999512,62cyclictest27175-21irqstats21:58:200
25874999510,63cyclictest9549-21wget19:17:330
25874999323,59cyclictest0-21swapper18:28:070
25874999318,54cyclictest26865-21munin-node17:52:130
25874999312,59cyclictest4121-21cut18:47:310
2587499919,29cyclictest30353-21/usr/sbin/munin18:12:360
2587499918,64cyclictest26986-21munin-node17:52:240
25874999133,39cyclictest5967-21basename18:57:320
25874999116,37cyclictest9410-21wc19:17:120
25874999016,43cyclictest0-21swapper19:08:160
25874999013,55cyclictest12170-21basename19:32:310
25874999012,60cyclictest14765-21munin-run19:47:100
25874999011,31cyclictest1873-21processes18:33:090
2587499898,60cyclictest5746-21latency_hist18:57:080
25874998917,25cyclictest11462-21df19:27:430
25874998913,23cyclictest3739-21grep18:43:120
25874998910,56cyclictest7545-21sshd19:06:310
25874998814,50cyclictest28408-21apt-get18:02:260
25874998813,26cyclictest31641-21/usr/sbin/munin18:18:100
25874998714,50cyclictest32007-21apt-get18:22:270
25874998713,19cyclictest27510-21apt-get17:57:240
25874998712,55cyclictest2257-21/usr/sbin/munin18:37:470
25874998712,25cyclictest10886-21/usr/sbin/munin19:23:090
25874998617,48cyclictest13063-21apt-get19:37:270
25874998512,28cyclictest29306-21basename18:07:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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