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2025-11-17 - 09:14
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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 rack3slot3.osadl.org (updated Mon Nov 17, 2025 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20430210995sleep30-21swapper/319:07:475
20430210995sleep30-21swapper/319:07:465
20376210894sleep80-21swapper/819:07:0310
20376210894sleep80-21swapper/819:07:0310
20272210390sleep110-21swapper/1119:05:413
20272210390sleep110-21swapper/1119:05:413
122501020irq/42-ahci0-21swapper/119:05:131
122501020irq/42-ahci0-21swapper/119:05:131
3066350950irq/52-eth0-rx-0-21swapper/219:07:034
3066350950irq/52-eth0-rx-0-21swapper/219:07:034
3066450860irq/53-eth0-tx-0-21swapper/719:08:409
3066450860irq/53-eth0-tx-0-21swapper/719:08:399
3066350850irq/52-eth0-rx-0-21swapper/519:07:417
3066350850irq/52-eth0-rx-0-21swapper/519:07:417
2060227876sleep40-21swapper/419:09:246
2060227876sleep40-21swapper/419:09:236
2033526556sleep100-21swapper/1019:06:292
2033526556sleep100-21swapper/1019:06:282
2036826055sleep00-21swapper/019:06:560
2036826055sleep00-21swapper/019:06:550
2040525955sleep60-21swapper/619:07:258
2040525955sleep60-21swapper/619:07:258
2039525955sleep90-21swapper/919:07:1611
2039525955sleep90-21swapper/919:07:1611
20790993819cyclictest13752-1kworker/11:2H21:12:343
2074899320cyclictest0-21swapper/021:15:210
20766993029cyclictest3066450irq/53-eth0-tx-21:15:285
2079099290cyclictest0-21swapper/1122:26:373
2074899280cyclictest0-21swapper/022:11:110
20774992625cyclictest12250irq/42-ahci21:15:157
20764992625cyclictest12250irq/42-ahci21:15:254
20786992524cyclictest12250irq/42-ahci21:15:189
20788992423cyclictest12250irq/42-ahci21:15:2111
2078999225cyclictest831ksoftirqd/1021:00:492
14850200irq/18-uhci_hcd0-21swapper/421:45:306
2078999192cyclictest50392sleep1020:58:412
2078999192cyclictest3066350irq/52-eth0-rx-19:55:292
2078899192cyclictest0-21swapper/923:40:2111
20748991916cyclictest2388-21nscd22:16:180
20789991817cyclictest0-21swapper/1022:00:212
20789991817cyclictest0-21swapper/1021:29:442
20789991817cyclictest0-21swapper/1000:02:522
2078999181cyclictest831ksoftirqd/1021:20:292
2078999181cyclictest831ksoftirqd/1020:05:012
2078999181cyclictest831ksoftirqd/1019:25:122
2078999181cyclictest831ksoftirqd/1019:25:122
2078999181cyclictest3066350irq/52-eth0-rx-22:17:092
2078999181cyclictest279742sleep1022:59:432
2078999181cyclictest12250irq/42-ahci21:10:502
2078999181cyclictest12250irq/42-ahci00:05:212
2078899181cyclictest29499-21kworker/9:223:25:1511
2078899181cyclictest12250irq/42-ahci21:40:4911
2078899181cyclictest0-21swapper/920:20:2211
20787991816cyclictest9745-21snmp_rack3slot919:35:2010
20787991816cyclictest8886-21snmp_easybox.os20:20:1210
20787991816cyclictest3384-21snmp_rack3slot921:40:1610
20787991816cyclictest31271-21snmp_easybox.os21:35:1410
20787991816cyclictest30926-21perl19:20:1410
20787991816cyclictest29507-21snmp_rack3slot920:01:5310
20787991816cyclictest26746-21users21:25:4110
20787991816cyclictest2634-21snmp_rack3slot923:06:1710
20787991816cyclictest25831-21snmp_rack3slot919:56:5310
20787991816cyclictest24062-21snmp_rack3slot922:51:0210
20787991816cyclictest22126-21snmp_easybox.os21:20:2810
20787991816cyclictest21713-21snmp_easybox.os23:35:1210
20787991816cyclictest21704-21snmp_rack3slot919:10:1610
20787991816cyclictest16293-21snmp_rack3slot921:56:2910
20787991816cyclictest16007-21snmp_easybox.os22:40:2510
20787991816cyclictest1584-21perl00:35:1810
20787991816cyclictest12352-21perl00:05:1610
20787991816cyclictest10919-21iostat_ios21:05:2210
20787991816cyclictest10661-21df_inode21:50:1410
20787991816cyclictest1063-21yum20:50:3810
20748991817cyclictest0-21swapper/019:15:570
20748991817cyclictest0-21swapper/019:15:560
20790991716cyclictest22452sleep1122:22:273
20789991716cyclictest831ksoftirqd/1020:35:142
20789991716cyclictest3825-21python20:10:322
20789991716cyclictest0-21swapper/1022:40:152
2078999170cyclictest831ksoftirqd/1023:30:332
2078999170cyclictest831ksoftirqd/1023:25:122
2078999170cyclictest831ksoftirqd/1020:20:342
2078999170cyclictest831ksoftirqd/1019:50:342
2078999170cyclictest831ksoftirqd/1019:40:162
2078999170cyclictest831ksoftirqd/1019:15:142
2078999170cyclictest831ksoftirqd/1019:15:142
2078999170cyclictest80582sleep1020:15:592
2078999170cyclictest75562sleep1019:30:552
2078999170cyclictest75562sleep1019:30:542
2078999170cyclictest61522sleep1021:45:112
2078999170cyclictest53852sleep1021:41:332
2078999170cyclictest3532sleep1019:23:312
2078999170cyclictest34312sleep1000:36:162
2078999170cyclictest317112chrt23:45:472
2078999170cyclictest315972sleep1020:50:162
2078999170cyclictest314452chrt23:01:552
2078999170cyclictest3066350irq/52-eth0-rx-23:55:152
2078999170cyclictest3066350irq/52-eth0-rx-23:10:142
2078999170cyclictest3066350irq/52-eth0-rx-22:50:382
2078999170cyclictest3066350irq/52-eth0-rx-21:30:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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