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2025-06-17 - 02:34
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 50 highest latencies:
System rack5slot3.osadl.org (updated Tue Jun 17, 2025 00:50:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2889221630,3sleep50-21swapper/519:05:225
278412870,1sleep43025199cyclictest22:38:584
2981228550,30sleep60-21swapper/619:09:566
2978628442,37sleep10-21swapper/119:09:351
2949828453,6sleep30-21swapper/319:05:283
2969028248,29sleep70-21swapper/719:08:127
2981927946,29sleep20-21swapper/219:10:002
2950427642,30sleep00-21swapper/019:05:340
2960427440,29sleep40-21swapper/419:06:574
114322600,1sleep011435-21sh00:05:170
24262530,0sleep10-21swapper/100:00:221
54302480,0sleep00-21swapper/000:17:580
137502450,0sleep50-21swapper/523:35:115
98072440,0sleep30-21swapper/323:48:473
212722440,0sleep60-21swapper/623:54:346
172912420,0sleep20-21swapper/222:49:452
246602350,0sleep50-21swapper/519:50:225
30252992928,0cyclictest0-21swapper/523:20:225
30254992221,1cyclictest630-21avahi-daemon00:09:557
30247992112,4cyclictest0-21swapper/021:15:010
30254992019,1cyclictest0-21swapper/721:43:307
30253991919,0cyclictest0-21swapper/619:10:126
30252991914,4cyclictest22434-21ls20:40:225
30247991910,0cyclictest0-21swapper/023:17:210
30252991810,8cyclictest0-21swapper/523:05:325
30250991816,1cyclictest1559-21snmpd22:06:523
30250991812,4cyclictest1585-21lldpd23:40:493
30249991817,1cyclictest0-21swapper/200:09:042
30248991810,0cyclictest0-21swapper/100:31:431
30247991810,8cyclictest0-21swapper/000:36:510
30247991810,0cyclictest0-21swapper/023:01:230
2552621810,0sleep50-21swapper/500:11:395
30254991710,3cyclictest0-21swapper/723:20:227
30253991710,4cyclictest0-21swapper/621:10:046
30253991710,0cyclictest0-21swapper/622:41:036
30253991710,0cyclictest0-21swapper/621:55:226
30252991715,1cyclictest649-21nscd21:20:135
30252991710,3cyclictest0-21swapper/500:35:185
30252991710,0cyclictest0-21swapper/500:32:015
30251991710,0cyclictest0-21swapper/423:40:494
30250991712,2cyclictest18400-21nscd00:32:203
30250991710,0cyclictest0-21swapper/322:34:593
30249991716,1cyclictest321ktimersoftd/223:10:222
30249991715,0cyclictest19802-21nscd00:12:562
30249991710,0cyclictest0-21swapper/222:14:062
140132170,1sleep214016-21fschecks_time21:45:152
30254991611,1cyclictest0-21swapper/700:30:297
30254991610,0cyclictest0-21swapper/723:49:307
30254991610,0cyclictest0-21swapper/721:34:427
30254991610,0cyclictest0-21swapper/721:34:427
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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