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2026-05-19 - 10:06
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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 100 highest latencies:
System rackfslot7.osadl.org (updated Tue May 19, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1589945999414,79cyclictest1677440-21taskset21:49:564
158994599780,59cyclictest1728703-21ps23:20:234
158994599780,59cyclictest1728703-21ps23:20:224
1589948997739,19cyclictest871ktimers/719:45:167
1589945997214,39cyclictest236199-21snmpd00:39:154
1589945996910,40cyclictest1754168-21taskset00:09:224
158994199660,65cyclictest0-21swapper/000:00:270
158994599655,19cyclictest0-21swapper/400:20:004
158994599645,19cyclictest0-21swapper/423:50:134
158994599622,59cyclictest0-21swapper/422:19:454
158994599601,19cyclictest0-21swapper/400:00:454
158994599600,59cyclictest0-21swapper/420:59:494
158994599591,0cyclictest0-21swapper/420:10:264
158994599580,57cyclictest0-21swapper/419:59:174
1589944995840,18cyclictest0-21swapper/320:35:183
1589945995718,38cyclictest1705559-21aten2.4_rfpower22:40:104
1589945995718,20cyclictest362-21jbd2/sda2-800:32:584
1589945995716,19cyclictest1639660-21kworker/u32:3+ext4-rsv-conversion21:15:014
158994599570,56cyclictest0-21swapper/421:58:214
158994599570,56cyclictest0-21swapper/419:34:184
1589945995618,38cyclictest0-21swapper/422:05:004
158994599560,56cyclictest0-21swapper/422:23:324
158994599560,55cyclictest0-21swapper/421:44:214
158994599560,16cyclictest0-21swapper/421:39:124
158994599560,16cyclictest0-21swapper/421:30:574
1589945995514,19cyclictest1713383-21cut22:55:014
158994599550,55cyclictest0-21swapper/422:48:444
158994599550,16cyclictest0-21swapper/423:28:534
158994599550,15cyclictest0-21swapper/420:03:344
1589941995515,39cyclictest0-21swapper/020:00:150
1589945995436,18cyclictest601ktimers/423:58:184
1589945995419,15cyclictest0-21swapper/420:19:144
1589945995416,38cyclictest362-21jbd2/sda2-822:56:584
1589945995415,19cyclictest1702007-21apt-get22:35:004
1589945995415,0cyclictest0-21swapper/419:25:014
1589945995414,19cyclictest0-21swapper/423:15:004
1589945995414,19cyclictest0-21swapper/423:00:214
1589945995414,19cyclictest0-21swapper/420:35:014
1589945995414,19cyclictest0-21swapper/419:55:024
1589945995414,19cyclictest0-21swapper/400:10:214
1589945995413,19cyclictest1-21systemd20:45:004
1589945995410,39cyclictest0-21swapper/420:20:104
158994599540,54cyclictest0-21swapper/419:29:104
158994499540,54cyclictest0-21swapper/319:40:193
1589945995319,15cyclictest0-21swapper/423:16:154
1589945995319,15cyclictest0-21swapper/423:16:144
1589945995319,15cyclictest0-21swapper/422:29:434
1589945995315,19cyclictest362-21jbd2/sda2-821:52:584
1589945995314,39cyclictest0-21swapper/423:48:544
1589945995314,39cyclictest0-21swapper/420:07:594
1589945995314,18cyclictest0-21swapper/420:55:004
1589945995314,0cyclictest0-21swapper/421:00:254
1589945995313,19cyclictest15917362sleep419:10:214
1589945995313,19cyclictest0-21swapper/422:40:014
1589945995313,19cyclictest0-21swapper/419:15:224
1589945995233,19cyclictest0-21swapper/421:22:354
1589945995213,39cyclictest0-21swapper/420:37:514
1589945995213,19cyclictest0-21swapper/421:06:024
1589945995213,19cyclictest0-21swapper/419:45:514
1589945995213,0cyclictest0-21swapper/421:20:004
1589945995212,1cyclictest0-21swapper/422:05:174
1589945995212,0cyclictest0-21swapper/423:40:014
1589945995212,0cyclictest0-21swapper/400:20:214
1589945995112,0cyclictest0-21swapper/420:25:204
1589945995111,19cyclictest601ktimers/423:05:254
1589945995111,19cyclictest601ktimers/423:05:244
1589944995112,39cyclictest0-21swapper/319:10:153
1589948995031,19cyclictest0-21swapper/720:35:187
1589946995032,18cyclictest0-21swapper/519:40:185
1589945995032,18cyclictest0-21swapper/420:48:034
1589945995011,0cyclictest0-21swapper/419:40:224
1589945995011,0cyclictest0-21swapper/400:25:094
1589944995031,19cyclictest0-21swapper/322:50:153
1589946994911,19cyclictest0-21swapper/521:25:165
1589945994930,19cyclictest0-21swapper/419:39:514
1589945994910,39cyclictest0-21swapper/423:40:264
1589945994910,39cyclictest0-21swapper/423:32:224
1589945994910,19cyclictest0-21swapper/421:25:544
1589941994931,0cyclictest0-21swapper/023:35:140
158994599488,19cyclictest0-21swapper/422:10:204
1589948994628,18cyclictest0-21swapper/721:50:147
158994699468,19cyclictest0-21swapper/522:30:165
1589942994627,19cyclictest1589940-21cyclictest19:40:191
158994499457,19cyclictest0-21swapper/321:15:183
158994199457,19cyclictest0-21swapper/020:10:160
158994399446,19cyclictest0-21swapper/221:25:162
158994499435,19cyclictest0-21swapper/323:45:193
158994499435,19cyclictest0-21swapper/322:20:153
158994399436,18cyclictest870-21mta-sts-daemon20:50:112
158994199435,19cyclictest0-21swapper/020:20:120
158994899423,39cyclictest0-21swapper/721:35:157
1589947994224,18cyclictest0-21swapper/622:35:166
158994199424,19cyclictest0-21swapper/020:35:170
1589947994124,0cyclictest0-21swapper/623:05:166
1589947994124,0cyclictest0-21swapper/623:05:156
158994199400,15cyclictest0-21swapper/019:25:150
158994899391,19cyclictest0-21swapper/720:25:157
158994699390,39cyclictest0-21swapper/522:55:185
1589944993920,19cyclictest0-21swapper/319:30:173
158994899380,19cyclictest0-21swapper/721:10:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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