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2025-07-12 - 11:03
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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
Characteristics of the 50 highest latencies:
System rack1slot1.osadl.org (updated Sat Jul 12, 2025 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31102210156,42sleep00-21swapper/019:09:180
28302202164,25sleep30-21swapper/319:05:383
31172201162,26sleep20-21swapper/219:09:242
28682199160,26sleep10-21swapper/119:06:091
218572700,0sleep10-21swapper/123:10:001
316742650,0sleep00-21swapper/021:13:360
3270992323,0cyclictest28-21ksoftirqd/221:24:492
3270991817,1cyclictest28-21ksoftirqd/220:40:162
3270991817,1cyclictest28-21ksoftirqd/219:55:162
3270991717,0cyclictest28-21ksoftirqd/221:45:142
3270991716,1cyclictest28-21ksoftirqd/222:10:172
3270991716,1cyclictest28-21ksoftirqd/200:05:142
3270991716,0cyclictest28-21ksoftirqd/222:45:152
3270991616,0cyclictest28-21ksoftirqd/223:08:512
3270991616,0cyclictest28-21ksoftirqd/221:32:012
3270991616,0cyclictest28-21ksoftirqd/221:29:042
3270991616,0cyclictest28-21ksoftirqd/200:22:152
3270991615,1cyclictest28-21ksoftirqd/221:14:562
3270991615,1cyclictest28-21ksoftirqd/219:50:212
3270991615,1cyclictest28-21ksoftirqd/200:29:512
3270991614,1cyclictest28-21ksoftirqd/223:10:202
3270991515,0cyclictest28-21ksoftirqd/222:39:002
3270991514,1cyclictest28-21ksoftirqd/220:55:202
3270991414,0cyclictest28-21ksoftirqd/223:51:082
3270991414,0cyclictest28-21ksoftirqd/223:46:052
3270991414,0cyclictest28-21ksoftirqd/223:41:262
3270991414,0cyclictest28-21ksoftirqd/222:30:042
3270991414,0cyclictest28-21ksoftirqd/222:24:152
3270991414,0cyclictest28-21ksoftirqd/222:19:482
3270991414,0cyclictest28-21ksoftirqd/221:00:182
3270991413,1cyclictest28-21ksoftirqd/220:50:002
3270991412,1cyclictest28-21ksoftirqd/223:20:002
327099140,6cyclictest28-21ksoftirqd/220:30:112
3254991413,1cyclictest9-21ksoftirqd/023:25:210
3254991413,1cyclictest9-21ksoftirqd/021:40:000
3275991312,1cyclictest35-21ksoftirqd/321:10:003
327099138,3cyclictest28-21ksoftirqd/223:22:152
3270991313,0cyclictest28-21ksoftirqd/223:28:192
3270991313,0cyclictest28-21ksoftirqd/223:03:472
3270991313,0cyclictest28-21ksoftirqd/222:07:592
3270991313,0cyclictest28-21ksoftirqd/222:00:262
3270991313,0cyclictest28-21ksoftirqd/221:52:572
3270991313,0cyclictest28-21ksoftirqd/221:38:182
3270991313,0cyclictest28-21ksoftirqd/221:16:252
3270991313,0cyclictest28-21ksoftirqd/200:10:022
3270991312,1cyclictest28-21ksoftirqd/219:21:142
3270991312,1cyclictest28-21ksoftirqd/219:10:172
3270991312,1cyclictest28-21ksoftirqd/200:35:072
325499139,3cyclictest9-21ksoftirqd/000:25:000
3254991312,1cyclictest9-21ksoftirqd/023:35:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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