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2025-10-10 - 08:24
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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 376 highest latencies:
System rack7slot8.osadl.org (updated Thu Oct 09, 2025 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25588221528,57sleep00-21swapper/007:09:020
257689918137,32cyclictest10250irq/56-4a10000008:05:410
257689916657,24cyclictest101ktimersoftd/012:11:100
257689915749,13cyclictest10150irq/55-4a10000010:50:210
25768991559,24cyclictest31049-21df07:30:200
25768991549,43cyclictest1892-21df_inode09:55:220
257689915143,28cyclictest3650irq/20-4900000011:17:310
257689915064,11cyclictest101ktimersoftd/010:20:280
257689914951,17cyclictest14130-21latency_hist10:45:040
25768991456,28cyclictest8673-21apt-get08:12:100
257689914541,21cyclictest10150irq/55-4a10000011:40:340
257689914142,29cyclictest0-21swapper/012:37:230
11733210416,76sleep011767-21basename08:20:150
668121026,85sleep06682-21memory08:01:010
257689910135,19cyclictest22794-21threads09:02:090
1528321016,84sleep015285-21cron08:35:000
604721005,82sleep06048-21users10:10:530
307921004,82sleep03141-21df10:00:180
315652974,80sleep031597-21proc_pri11:50:440
195472975,79sleep019545-21ntp_states11:05:420
324082955,80sleep032431-21netstat07:35:340
287682955,78sleep028787-21open_inodes07:20:430
209222955,79sleep020963-21tr08:55:490
280382945,78sleep01356-21snmpd11:39:140
165172945,78sleep01356-21snmpd08:39:570
320022925,76sleep032015-21ntp_states09:45:400
47332914,73sleep04768-21aten_r7power_vo07:55:150
25768999136,44cyclictest10250irq/56-4a10000007:44:450
2576899902,50cyclictest7852-21cat10:20:040
2576899887,45cyclictest32394-21apt11:55:160
25768998737,15cyclictest10250irq/56-4a10000008:25:550
25768998644,29cyclictest3650irq/20-4900000008:45:210
2576899858,18cyclictest1356-21snmpd10:35:380
25768998549,25cyclictest0-21swapper/009:05:240
25768998540,30cyclictest10250irq/56-4a10000007:46:160
25768998540,29cyclictest3650irq/20-4900000009:26:140
25768998356,17cyclictest30758-21/usr/sbin/munin09:40:370
25768998310,20cyclictest23593-21irqstats11:20:350
25768998251,15cyclictest256832chrt09:19:140
25768998153,15cyclictest25759-21cyclictest12:19:050
25768998134,15cyclictest288892sleep009:34:080
25768998133,34cyclictest1764-21mailstats12:00:510
25768998132,33cyclictest25114-21seq11:25:520
25768998114,30cyclictest5316-21latency_hist10:10:030
25768998047,23cyclictest10813-21seq08:15:420
25768998046,26cyclictest0-21swapper/012:09:570
25768998044,25cyclictest0-21swapper/012:20:160
25768998026,15cyclictest20397-21/usr/sbin/munin11:10:300
2576899798,38cyclictest1356-21snmpd07:14:380
25768997960,12cyclictest101ktimersoftd/007:25:190
25768997948,13cyclictest10150irq/55-4a10000008:40:340
25768997947,22cyclictest0-21swapper/010:30:220
2576899788,19cyclictest14487-21memory10:45:350
25768997848,13cyclictest10150irq/55-4a10000007:17:050
25768997820,13cyclictest8621-21latency_hist12:30:030
25768997758,11cyclictest101ktimersoftd/009:50:140
25768997756,12cyclictest101ktimersoftd/008:50:190
25768997741,26cyclictest0-21swapper/011:30:230
25768997740,28cyclictest0-21swapper/010:25:230
25768997648,13cyclictest10150irq/55-4a10000012:30:240
25768997525,16cyclictest3763-21netstat07:50:370
25768997444,13cyclictest10150irq/55-4a10000009:36:500
25768997443,18cyclictest26691-21gpgv09:25:040
25768997354,11cyclictest101ktimersoftd/011:45:250
25768997345,13cyclictest10150irq/55-4a10000010:55:450
25768997253,11cyclictest101ktimersoftd/011:00:350
25768997241,22cyclictest25158-21latency_hist09:15:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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