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2025-11-12 - 02:15
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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 highest latencies:
System rack7slot8.osadl.org (updated Tue Nov 11, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8493222133,58sleep00-21swapper/007:06:440
89449912399,14cyclictest0-21swapper/007:10:040
89449910460,28cyclictest101ktimersoftd/007:22:130
89449910239,45cyclictest101ktimersoftd/010:42:130
8944999848,36cyclictest101ktimersoftd/010:30:420
8944999349,30cyclictest101ktimersoftd/012:10:220
8944999235,41cyclictest0-21swapper/009:10:460
8944999229,12cyclictest101ktimersoftd/008:41:110
8944999132,41cyclictest25639-21ntp_states12:30:470
8944999030,32cyclictest10250irq/56-4a10000011:17:060
8944998961,12cyclictest101ktimersoftd/012:17:060
8944998960,13cyclictest101ktimersoftd/009:17:120
8944998928,34cyclictest10250irq/56-4a10000008:46:320
8944998927,43cyclictest17616-21munin-run12:00:030
8944998838,35cyclictest10150irq/55-4a10000011:07:030
8944998828,43cyclictest792-21haveged09:41:450
8944998827,45cyclictest0-21swapper/009:30:050
8944998823,46cyclictest1424-21nginx09:36:370
8944998755,21cyclictest20941-21cron10:05:010
8944998750,26cyclictest0-21swapper/007:35:220
8944998740,15cyclictest10250irq/56-4a10000011:01:530
8944998740,15cyclictest10250irq/56-4a10000010:36:050
8944998640,30cyclictest10250irq/56-4a10000009:55:540
8944998640,29cyclictest3650irq/20-4900000012:00:310
225832865,11sleep01356-21snmpd08:01:200
8944998555,13cyclictest10150irq/55-4a10000007:15:330
8944998542,32cyclictest29622-21fw_conntrack08:30:300
8944998540,14cyclictest10250irq/56-4a10000011:37:030
8944998538,30cyclictest23932-21sendmail-mta08:07:160
8944998534,31cyclictest10342-21wget11:30:150
8944998426,27cyclictest1336-21runrttasks11:25:100
85442844,13sleep00-21swapper/011:22:060
8944998355,12cyclictest101ktimersoftd/009:45:380
8944998326,30cyclictest10250irq/56-4a10000011:42:130
8944998322,16cyclictest23425-21latency_hist10:15:020
8944998253,13cyclictest10150irq/55-4a10000009:00:020
8944998247,24cyclictest0-21swapper/010:15:240
8944998247,21cyclictest101ktimersoftd/009:05:150
8944998242,23cyclictest0-21swapper/011:52:140
8944998234,32cyclictest101ktimersoftd/009:20:210
8944998233,31cyclictest10150irq/55-4a10000010:05:310
8944998149,14cyclictest10150irq/55-4a10000007:55:190
8944998144,23cyclictest19782-21ntpq07:50:370
8944998138,29cyclictest3650irq/20-4900000010:55:320
8944998050,19cyclictest385-21runrttasks10:50:180
8944998050,19cyclictest27743-21latency_hist12:40:100
8944998050,14cyclictest10150irq/55-4a10000010:25:030
8944998042,28cyclictest0-21swapper/009:50:230
8944998017,21cyclictest26763-21apt08:20:010
894499798,34cyclictest1801-21node11:47:060
894499797,40cyclictest2345-21/usr/sbin/munin08:50:140
894499797,16cyclictest31777-21chrt08:40:020
894499796,53cyclictest26254-21df10:25:210
8944997950,13cyclictest10150irq/55-4a10000008:20:240
8944997948,14cyclictest10150irq/55-4a10000007:30:350
894499787,20cyclictest18458-21irqstats07:45:350
8944997843,26cyclictest0-21swapper/009:00:230
8944997819,49cyclictest10250irq/56-4a10000009:26:400
8944997757,12cyclictest101ktimersoftd/012:25:460
8944997755,16cyclictest28212-21aten_r7power_po08:25:170
8944997733,11cyclictest101ktimersoftd/012:07:180
8944997729,11cyclictest101ktimersoftd/008:10:180
8944997647,14cyclictest10150irq/55-4a10000007:41:010
8944997640,23cyclictest13368-21df_inode07:25:210
8944997545,13cyclictest10150irq/55-4a10000012:20:520
8944997516,41cyclictest1424-21nginx10:46:080
8944997447,18cyclictest5329-21/usr/sbin/munin11:10:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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