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2022-01-26 - 11:50

Intel(R) Xeon(R) CPU E5620 @ 2.40GHz, Linux 4.19.127-rt55 (Profile)

Latency plot of system in rack #c, slot #0
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Up99 -i200 -h400 --smi -q
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 rackcslot0.osadl.org (updated Wed Jan 26, 2022 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30292133104,24sleep100-21swapper/1019:14:532
30292133104,24sleep100-21swapper/1019:14:532
1198421330,0sleep90-21swapper/921:29:2215
1198421330,0sleep90-21swapper/921:29:2215
2425821290,1sleep40-21swapper/423:55:5210
2425821290,1sleep40-21swapper/423:55:5210
30302126118,4sleep110-21swapper/1119:14:543
30302126118,4sleep110-21swapper/1119:14:543
30102120101,15sleep80-21swapper/819:14:3514
30102120101,15sleep80-21swapper/819:14:3514
971221160,1sleep140-21swapper/1423:57:546
971221160,1sleep140-21swapper/1423:57:546
519321150,1sleep20-21swapper/222:29:588
1410421140,1sleep130-21swapper/1323:43:435
2726211389,19sleep30-21swapper/319:11:189
2726211389,19sleep30-21swapper/319:11:189
1455621130,0sleep40-21swapper/400:26:0610
3157621120,1sleep121131ktimersoftd/1221:31:334
3157621120,1sleep121131ktimersoftd/1221:31:334
1939621100,2sleep319397-21sshd23:33:239
2729210993,12sleep60-21swapper/619:11:2112
2729210993,12sleep60-21swapper/619:11:2112
1266821070,1sleep130-21swapper/1323:28:445
1318621040,7sleep15351199cyclictest00:33:307
2994210391,8sleep130-21swapper/1319:14:245
2994210391,8sleep130-21swapper/1319:14:245
2524121030,1sleep825242-21sh21:59:1814
1655321030,1sleep80-21swapper/823:25:2614
1255210390,7sleep150-21swapper/1519:10:417
1255210390,7sleep150-21swapper/1519:10:417
1588821000,2sleep1215893-21run-parts00:22:294
290762990,1sleep9881rcuc/922:17:4715
219562990,1sleep100-21swapper/1021:30:272
219562990,1sleep100-21swapper/1021:30:272
73602980,3sleep13350999cyclictest22:30:095
269512980,1sleep90-21swapper/923:11:4915
179512980,6sleep8350099cyclictest23:47:3814
11242980,0sleep100-21swapper/1000:00:312
41402970,1sleep140-21swapper/1420:30:376
44302960,1sleep140-21swapper/1421:39:216
44302960,1sleep140-21swapper/1421:39:216
78242950,0sleep110-21swapper/1123:31:543
6112940,1sleep00-21swapper/023:30:550
308092920,1sleep100-21swapper/1023:34:502
239592920,0sleep90-21swapper/923:00:5115
151932920,1sleep80-21swapper/822:09:2814
25432910,1sleep122535-21sshd00:35:354
222602910,1sleep60-21swapper/600:06:2012
222602910,1sleep60-21swapper/600:06:2012
146112910,5sleep10350399cyclictest21:47:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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