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2025-06-19 - 00:02
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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 792 highest latencies:
System rack5slot7.osadl.org (updated Wed Jun 18, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22551224400,11sleep020885-1kworker/u3:205:48:290
226009910824,68cyclictest0-21swapper08:42:160
226009910517,25cyclictest31032-21apt-get08:49:030
226009910314,24cyclictest24756-21users10:10:250
226009910218,62cyclictest5722-21users09:10:250
226009910210,27cyclictest31845-21ssh10:32:340
226009910115,24cyclictest23463-21df_inode08:24:260
226009910115,22cyclictest22766-21memory10:04:530
226009910017,45cyclictest13963-21ntp_states11:15:130
226009910016,62cyclictest13005-21df09:34:220
226009910012,27cyclictest8589-21unixbench_singl07:24:470
226009910012,25cyclictest8467-21ssh09:19:470
22600999931,53cyclictest0-21swapper10:20:480
22600999916,62cyclictest3499-21df_inode10:44:300
22600999916,46cyclictest11018-21ssh09:28:250
22600999914,66cyclictest15747-21cstates07:59:190
22600999913,67cyclictest8999-21gzip11:00:170
22600999912,22cyclictest25213-21memory08:29:520
22600999911,30cyclictest983-21sed08:55:170
22600999826,47cyclictest0-21swapper07:53:450
22600999817,62cyclictest6997-21ssh10:54:540
22600999817,60cyclictest20661-21apt09:58:490
22600999817,45cyclictest12163-21memory11:09:570
22600999816,63cyclictest18910-21df_inode08:09:240
22600999816,62cyclictest29814-21fw_conntrack08:44:390
22600999816,61cyclictest14809-21memory09:40:010
22600999813,47cyclictest27254-21ssh08:35:380
22600999812,63cyclictest12773-21if_err_eth007:49:420
22600999811,67cyclictest26376-21sed10:15:220
22600999811,23cyclictest1279-21ssh10:38:350
22600999731,21cyclictest7067-21ps09:15:110
22600999717,59cyclictest32496-21fw_conntrack06:39:210
22600999716,61cyclictest29183-21fw_conntrack10:24:380
22600999715,42cyclictest17061-21apt-get08:04:020
22600999711,66cyclictest20972-21sed08:15:190
22600999711,26cyclictest22800-21ssh08:21:570
22600999710,68cyclictest6494-21grep07:14:320
22600999613,63cyclictest19590-21memory09:54:590
22600999612,65cyclictest10330-21fw_conntrack11:04:390
22600999611,46cyclictest24179-21cut05:54:220
22600999611,46cyclictest17619-21wget09:49:140
22600999516,57cyclictest16239-21fw_conntrack09:44:410
22600999516,18cyclictest2612-21users09:00:210
22600999513,23cyclictest3768-21sort09:04:510
22600999512,62cyclictest11672-21sed07:44:110
22600999434,30cyclictest0-21swapper09:32:110
22600999321,55cyclictest0-21swapper06:04:220
22600999315,21cyclictest0-21swapper10:50:340
22600999313,27cyclictest30229-21sed06:24:500
22600999212,43cyclictest4032-21sort06:59:420
22600999212,24cyclictest1996-21sh10:40:020
2260099919,46cyclictest32019-21unixbench_singl06:34:460
2260099919,20cyclictest23284-21find05:49:520
22600999117,36cyclictest4533-21df_inode07:04:140
22600999116,57cyclictest28493-21munin-run06:18:390
22600999114,40cyclictest10445-21munin-run07:38:380
22600999111,61cyclictest27229-21sort06:09:320
22600999032,36cyclictest7574-21grep07:19:420
22600999014,20cyclictest31165-21vmstat06:30:060
22600999013,26cyclictest25006-21/usr/sbin/munin05:59:210
22600998916,51cyclictest2440-21/usr/sbin/munin06:54:520
22600998818,22cyclictest1745-21df06:49:100
22600998814,25cyclictest10576-21/usr/sbin/munin07:39:020
22600998810,44cyclictest28663-21wget06:19:010
22600998717,22cyclictest1046-21memory06:44:320
22600998716,22cyclictest9039-21fw_conntrack07:29:180
22600998714,24cyclictest5489-21irqstats07:09:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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