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2023-03-26 - 23:00

x86 Intel Atom E3845 @1910 MHz, Linux 4.19.37-rt19 (Profile)

Latency plot of system in rack #d, slot #2
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 100, highest latencies:
System rackdslot2.osadl.org (updated Sun Mar 26, 2023 12:46:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
470921770,8sleep0324799cyclictest09:00:210
822721630,7sleep3325099cyclictest09:10:273
2224021500,9sleep0324799cyclictest11:50:150
1339911370,33ptp4l401ktimersoftd/307:09:583
259928664,9sleep20-21swapper/207:05:232
3249996810,14cyclictest9781-21df_abs07:30:172
3249996410,21cyclictest1132-21expr08:50:162
166742620,3sleep10-21swapper/109:40:251
324999598,13cyclictest4357-21df_abs09:00:162
133991590,1ptp4l401ktimersoftd/311:11:523
133991580,1ptp4l401ktimersoftd/312:07:113
324999570,13cyclictest14554-21date07:45:012
324999530,12cyclictest11904-21awk09:25:012
280824711,25sleep00-21swapper/007:08:070
280924615,18sleep10-21swapper/107:08:091
133991460,1ptp4l401ktimersoftd/307:44:143
3250994437,4cyclictest41-21ksoftirqd/309:05:003
133991440,1ptp4l401ktimersoftd/311:56:263
3250994337,4cyclictest41-21ksoftirqd/308:20:013
3250994336,4cyclictest41-21ksoftirqd/307:30:003
133991430,1ptp4l401ktimersoftd/310:19:553
133991430,1ptp4l401ktimersoftd/310:05:343
133991430,1ptp4l401ktimersoftd/308:50:053
133991430,1ptp4l401ktimersoftd/308:37:203
133991430,1ptp4l401ktimersoftd/307:23:253
3250994235,4cyclictest41-21ksoftirqd/312:30:163
133991420,1ptp4l401ktimersoftd/310:30:213
3250994135,4cyclictest41-21ksoftirqd/307:40:003
3250994135,3cyclictest41-21ksoftirqd/309:55:013
133991400,1ptp4l401ktimersoftd/308:00:163
3250993933,4cyclictest41-21ksoftirqd/311:40:003
324899391,35cyclictest24236-21cron10:09:591
3250993831,4cyclictest41-21ksoftirqd/310:24:593
3250993831,4cyclictest41-21ksoftirqd/310:04:593
3249993831,4cyclictest33-21ksoftirqd/211:20:262
3250993732,3cyclictest41-21ksoftirqd/309:35:003
3250993732,3cyclictest41-21ksoftirqd/308:30:013
3250993731,3cyclictest41-21ksoftirqd/307:30:323
3250993730,4cyclictest41-21ksoftirqd/310:10:213
3250993730,4cyclictest41-21ksoftirqd/309:40:313
3250993730,4cyclictest41-21ksoftirqd/309:20:213
3250993730,4cyclictest41-21ksoftirqd/308:20:283
3248993731,3cyclictest25-21ksoftirqd/109:51:291
3248993730,4cyclictest25-21ksoftirqd/111:00:001
3250993630,4cyclictest41-21ksoftirqd/311:20:263
3250993630,4cyclictest41-21ksoftirqd/310:55:003
3250993630,4cyclictest41-21ksoftirqd/310:30:003
3250993630,4cyclictest41-21ksoftirqd/310:00:003
3250993630,4cyclictest41-21ksoftirqd/307:15:003
3250993629,4cyclictest41-21ksoftirqd/310:45:003
3250993629,4cyclictest41-21ksoftirqd/310:40:163
3249993629,4cyclictest33-21ksoftirqd/211:25:062
3248993629,4cyclictest25-21ksoftirqd/107:53:021
55498350,2rtkit-daemon553-21rtkit-daemon11:51:502
3250993529,4cyclictest41-21ksoftirqd/312:00:163
3250993529,4cyclictest41-21ksoftirqd/308:40:263
3250993529,4cyclictest41-21ksoftirqd/308:05:093
3250993529,3cyclictest41-21ksoftirqd/312:25:013
3250993528,4cyclictest41-21ksoftirqd/311:50:223
3250993528,4cyclictest41-21ksoftirqd/311:45:003
3250993528,4cyclictest41-21ksoftirqd/308:33:103
3250993527,5cyclictest41-21ksoftirqd/307:52:383
3249993528,4cyclictest33-21ksoftirqd/208:20:042
3248993529,3cyclictest25-21ksoftirqd/108:38:181
3248993529,3cyclictest25-21ksoftirqd/107:29:141
3248993528,5cyclictest25-21ksoftirqd/111:55:091
3248993527,5cyclictest25-21ksoftirqd/108:16:531
3247993530,3cyclictest9-21ksoftirqd/010:51:290
3247993529,4cyclictest9-21ksoftirqd/010:47:290
3247993529,4cyclictest9-21ksoftirqd/008:28:290
3247993528,5cyclictest9-21ksoftirqd/008:01:160
3247993527,5cyclictest9-21ksoftirqd/010:11:550
3247993527,5cyclictest9-21ksoftirqd/007:21:080
55498340,3rtkit-daemon553-21rtkit-daemon10:05:422
3250993429,3cyclictest41-21ksoftirqd/309:50:003
3250993428,4cyclictest41-21ksoftirqd/311:30:283
3250993427,4cyclictest41-21ksoftirqd/312:10:213
3250993427,4cyclictest41-21ksoftirqd/311:19:283
3250993427,4cyclictest41-21ksoftirqd/311:09:413
3250993427,4cyclictest41-21ksoftirqd/308:10:513
3250993427,4cyclictest41-21ksoftirqd/307:48:493
3250993426,5cyclictest41-21ksoftirqd/310:36:323
3250993426,5cyclictest41-21ksoftirqd/310:36:313
3249993427,4cyclictest33-21ksoftirqd/208:19:282
3249993426,5cyclictest33-21ksoftirqd/208:27:182
3248993428,4cyclictest25-21ksoftirqd/110:53:041
3248993428,4cyclictest25-21ksoftirqd/108:59:051
3248993428,4cyclictest25-21ksoftirqd/108:10:321
3248993427,5cyclictest25-21ksoftirqd/111:09:081
3248993427,4cyclictest25-21ksoftirqd/112:08:141
3248993427,4cyclictest25-21ksoftirqd/110:36:571
3248993427,4cyclictest25-21ksoftirqd/110:36:571
3247993428,4cyclictest9-21ksoftirqd/012:29:050
3247993427,4cyclictest9-21ksoftirqd/012:05:280
3247993427,4cyclictest9-21ksoftirqd/011:22:370
3247993427,4cyclictest9-21ksoftirqd/010:02:350
3247993427,4cyclictest9-21ksoftirqd/009:09:000
3247993427,4cyclictest9-21ksoftirqd/008:47:290
3250993327,4cyclictest41-21ksoftirqd/312:40:003
3250993327,4cyclictest41-21ksoftirqd/308:46:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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