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2024-04-23 - 21:00
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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 rack3slot3.osadl.org (updated Tue Apr 23, 2024 12:46:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19360210290sleep50-21swapper/507:05:067
118501020irq/42-ahci0-21swapper/207:09:454
118501020irq/42-ahci0-21swapper/107:09:231
2224850980irq/44-eth0-rx-0-21swapper/807:09:2510
2224850930irq/44-eth0-rx-0-21swapper/1107:05:353
11850930irq/42-ahci0-21swapper/307:08:525
2224950900irq/45-eth0-tx-0-21swapper/707:07:319
2222629082sleep90-21swapper/907:06:3411
2224850870irq/44-eth0-rx-0-21swapper/407:07:196
2249927977sleep100-21swapper/1007:09:232
2221726553sleep00-21swapper/007:06:250
2075225853sleep60-21swapper/607:05:198
22664993919cyclictest0-21swapper/010:08:430
2266499330cyclictest0-21swapper/009:11:480
2266499300cyclictest0-21swapper/010:14:330
2269799192cyclictest2224850irq/44-eth0-rx-08:45:162
2269699195cyclictest0-21swapper/910:49:5311
2269699192cyclictest0-21swapper/911:05:3211
2269799184cyclictest0-21swapper/1008:27:212
2269799184cyclictest0-21swapper/1007:55:172
22697991817cyclictest0-21swapper/1009:15:342
2269799181cyclictest2224850irq/44-eth0-rx-11:20:212
2269799181cyclictest2224850irq/44-eth0-rx-11:20:212
2269799181cyclictest11850irq/42-ahci07:20:232
2269799180cyclictest11850irq/42-ahci10:11:212
2269699181cyclictest0-21swapper/909:20:3111
2269699181cyclictest0-21swapper/908:45:3011
22695991816cyclictest30115-21snmp_rack3slot911:41:4810
22695991816cyclictest25588-21snmp_rack3slot910:06:4910
22695991816cyclictest2326-21snmp_rack3slot910:20:1710
22695991816cyclictest19874-21diskstats10:00:1110
22695991816cyclictest18810-21snmp_rack3slot909:15:1110
22695991816cyclictest10218-21iostat_ios10:30:1910
22691991816cyclictest9278-21snmp_rack3slot910:30:119
22691991816cyclictest4568-21snmp_rack3slot911:05:369
22691991816cyclictest4346-21memory12:35:239
22691991816cyclictest31332-21diskstats11:00:169
22691991816cyclictest31332-21diskstats11:00:169
22691991816cyclictest27798-21snmp_rack3slot912:25:109
22691991816cyclictest22988-21snmp_rack3slot908:35:169
22691991816cyclictest21035-21ntp_states10:00:219
22691991816cyclictest1777-21snmp_rack3slot909:35:159
22691991816cyclictest17560-21munin-run08:30:019
2268699184cyclictest0-21swapper/609:00:228
22664991816cyclictest0-21swapper/008:30:010
2266499181cyclictest0-21swapper/010:20:310
22697991716cyclictest296382sleep1010:56:002
22697991716cyclictest0-21swapper/1011:45:242
22697991716cyclictest0-21swapper/1010:00:242
22697991716cyclictest0-21swapper/1009:45:452
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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