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2025-12-10 - 16:22
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack3slot5.osadl.org.osadl.org (updated Wed Dec 10, 2025 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151154320,0ktimers/0229341sleep06:51:360
237899947435,0cyclictest29136-21sendmail_mailtr07:26:220
1514690,0ktimers/0257711sleep12:11:560
237899945828,0cyclictest1654-21snmpd12:08:090
237899945540,0cyclictest22673-21munin-run09:26:100
237899945335,0cyclictest47-21kswapd010:21:440
237899944933,0cyclictest1654-21snmpd08:41:090
2378999448105,0cyclictest23527-21aten_r3power_po09:27:570
237899944237,0cyclictest13982-21munin-run08:46:090
237899944174,0cyclictest30771-21chrt07:32:340
237899944068,0cyclictest7418-21latency_hist10:46:170
237899943957,0cyclictest2135-21sshd07:51:160
237899943936,0cyclictest3915-21sshd10:27:400
2378999437122,0cyclictest0-21swapper11:26:130
237899943662,0cyclictest20994-21chrt09:17:170
237899943330,0cyclictest6954-21cut08:12:280
237899943159,0cyclictest24586-21munin-run07:01:060
237899943156,0cyclictest25932-21latency_hist09:41:040
237899943138,0cyclictest18334-21munin-run09:06:090
1514310,0ktimers/0126781sleep11:09:410
237899942939,0cyclictest5301-21grep10:36:200
237899942756,0cyclictest17107-21cron11:31:030
237899942685,0cyclictest3789-21interrupts07:57:380
237899942539,0cyclictest26528-21sort07:12:140
527504240,0irq/11-sym53c8x130150irq/15-NE200011:56:190
237899942365,0cyclictest19917-21tr11:42:400
237899942277,0cyclictest11218-21grep11:02:330
237899942042,0cyclictest16159-21awk08:56:060
237899941944,0cyclictest7060-21cut10:42:510
237899941933,0cyclictest32594-21mailstats10:11:190
237899941836,0cyclictest25440-21grep07:06:260
237899941832,0cyclictest16913-21chrt08:57:570
237899941732,0cyclictest9747-21grep08:26:170
237899941655,0cyclictest1747-21ntpd11:46:460
237899941638,0cyclictest22536-21idleruntime-cro11:56:030
237899941636,0cyclictest27945-21munin-run07:21:060
237899941498,0cyclictest1171-21chrt07:46:520
237899941339,0cyclictest893-21jbd2/sda1-808:01:150
237899941036,0cyclictest13848-21munin-run11:16:080
237899940954,0cyclictest18534-21hostname11:37:050
237899940933,0cyclictest4510-21tr10:31:220
237899940788,0cyclictest18188-21cron11:36:030
237899940432,0cyclictest14243-21grep11:17:070
237899940335,0cyclictest11397-21timerandwakeup08:32:400
1514030,0ktimers/097331sleep10:56:370
2378999402113,0cyclictest86531sleep08:21:160
237899939951,0cyclictest28781-21munin-node09:52:390
237899939936,0cyclictest19883-21sort09:12:150
237899939936,0cyclictest1570-21syslogd10:21:040
237899939933,0cyclictest464-21munin-node07:42:330
2378999399106,0cyclictest32453-21cron10:11:030
237899939834,0cyclictest23844-21latency_hist09:31:150
237899939792,0cyclictest7930-21sort08:17:130
237899939753,0cyclictest27454-21aten_r3power_po12:17:560
237899939735,0cyclictest1570-21syslogd09:11:030
237899939669,0cyclictest23812-21sort12:02:130
237899939469,0cyclictest29083-21latency_hist07:26:160
237899939339,0cyclictest25261-21munin-run07:06:090
237899939335,0cyclictest8418-21latency_hist10:51:150
237899939131,0cyclictest0-21swapper12:21:340
237899938937,0cyclictest27023-21munin-run09:46:080
237899938935,0cyclictest29363-21grep09:56:230
237899938736,0cyclictest5551-21chrt08:06:430
237899938639,0cyclictest14634-21grep08:47:460
237899938535,0cyclictest27271-21chrt09:46:410
237899938491,0cyclictest31279-21cat07:36:120
237899938137,0cyclictest31367-21munin-run10:06:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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