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2025-04-02 - 08:29
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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 Wed Apr 02, 2025 00:50:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3091729186,2sleep60-21swapper/619:05:156
3091729186,2sleep60-21swapper/619:05:156
30828450,29sleep30-21swapper/319:06:163
30828450,29sleep30-21swapper/319:06:163
57728248,30sleep50-21swapper/519:09:555
57728248,30sleep50-21swapper/519:09:555
40728146,30sleep40-21swapper/419:07:374
40728146,30sleep40-21swapper/419:07:374
3043828147,30sleep20-21swapper/219:05:032
3043828147,30sleep20-21swapper/219:05:032
34428046,29sleep70-21swapper/719:06:447
34428046,29sleep70-21swapper/719:06:447
3134228075,2sleep00-21swapper/019:05:170
3134228075,2sleep00-21swapper/019:05:170
39527944,30sleep10-21swapper/119:07:261
39527944,30sleep10-21swapper/119:07:261
265822480,0sleep20-21swapper/223:48:462
88492470,0sleep70-21swapper/723:05:597
138092470,0sleep40-21swapper/422:52:194
61342440,0sleep00-21swapper/000:27:420
11152440,0sleep30-21swapper/323:01:233
83612430,0sleep20-21swapper/223:21:312
1256993232,0cyclictest0-21swapper/022:54:380
1263993131,0cyclictest0-21swapper/723:50:527
126199290,29cyclictest0-21swapper/522:00:295
1258992929,0cyclictest0-21swapper/223:50:352
126199270,26cyclictest0-21swapper/521:30:195
1257992610,16cyclictest0-21swapper/122:19:401
1260992424,0cyclictest69450irq/124-eth022:59:434
1262992321,2cyclictest1559-21snmpd21:47:546
1257992321,1cyclictest241ktimersoftd/122:40:191
117022310,0sleep50-21swapper/523:51:385
1258992212,8cyclictest0-21swapper/223:42:032
1258992210,9cyclictest0-21swapper/223:08:302
1760622110,0sleep00-21swapper/000:33:280
1260992121,0cyclictest0-21swapper/422:47:164
1259992121,0cyclictest0-21swapper/323:30:363
1258992110,9cyclictest0-21swapper/223:29:082
1258992110,9cyclictest0-21swapper/222:24:262
1258992110,9cyclictest0-21swapper/221:51:342
1258992110,9cyclictest0-21swapper/221:38:082
1258992110,9cyclictest0-21swapper/200:06:302
1258992110,8cyclictest0-21swapper/221:01:232
1258992110,8cyclictest0-21swapper/200:17:262
1256992121,0cyclictest0-21swapper/000:35:110
1256992110,11cyclictest0-21swapper/022:23:390
1258992010,9cyclictest0-21swapper/223:57:242
1258992010,8cyclictest0-21swapper/223:39:162
1258992010,8cyclictest0-21swapper/223:17:352
1258992010,8cyclictest0-21swapper/223:13:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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