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2022-06-30 - 18:31

x86 Intel (undisclosed) @1600 MHz, Linux 4.9.20-rt16 (Profile)

Latency plot of system in rack #7, slot #1
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 -Sp99 -i200 -h400 -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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack7slot1.osadl.org (updated Thu Jun 30, 2022 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11582211856,23sleep10-21swapper/107:09:331
11273211751,60sleep30-21swapper/307:06:103
11507211250,57sleep00-21swapper/007:08:440
951028863,20sleep20-21swapper/207:05:092
247392730,1sleep35703-21stress12:01:353
43052610,1sleep05706-21stress12:26:170
11767995130,19cyclictest0-21swapper/011:35:150
11767995130,19cyclictest0-21swapper/011:35:150
11767994731,14cyclictest0-21swapper/009:34:360
11767994728,18cyclictest0-21swapper/008:25:150
11767994628,15cyclictest0-21swapper/010:12:160
257782450,1sleep05706-21stress10:55:430
257782450,1sleep05706-21stress10:55:430
1176799457,27cyclictest0-21swapper/009:55:290
1176799446,27cyclictest0-21swapper/010:50:240
1176799446,23cyclictest0-21swapper/011:55:320
11767994428,14cyclictest0-21swapper/010:38:170
1177099435,17cyclictest0-21swapper/211:27:082
1176799436,24cyclictest0-21swapper/011:32:320
11767994328,13cyclictest0-21swapper/011:45:370
11767994327,14cyclictest0-21swapper/009:40:370
11767994327,13cyclictest28673-21apt-get08:50:120
11767994325,15cyclictest0-21swapper/009:45:280
11767994325,15cyclictest0-21swapper/009:45:280
11769994211,28cyclictest0-21swapper/112:38:231
1176799427,25cyclictest0-21swapper/011:20:320
1176799427,24cyclictest0-21swapper/011:13:410
1176799426,27cyclictest0-21swapper/010:20:010
1176799425,28cyclictest0-21swapper/009:50:350
11767994223,16cyclictest0-21swapper/012:35:190
193432410,1sleep05706-21stress09:35:350
1176799417,24cyclictest0-21swapper/009:20:350
1176799417,23cyclictest0-21swapper/011:51:380
1176799416,26cyclictest0-21swapper/011:00:070
1176799416,25cyclictest0-21swapper/009:10:190
1176799416,25cyclictest0-21swapper/009:10:190
11767994119,6cyclictest32113-21apt-get07:50:120
11767994112,18cyclictest5703-21stress11:30:010
11767994026,12cyclictest0-21swapper/012:05:250
11767994026,12cyclictest0-21swapper/011:40:100
11767994024,14cyclictest0-21swapper/010:45:500
11767994024,14cyclictest0-21swapper/009:10:000
11767994012,16cyclictest12211-21wget10:30:160
11767994011,17cyclictest5703-21stress12:15:110
11767994010,23cyclictest0-21swapper/008:10:210
131392395,13sleep20-21swapper/208:15:232
11767993925,12cyclictest0-21swapper/010:00:330
11767993923,12cyclictest22975-21apt-get12:00:130
11767993917,5cyclictest27315-21apt-get07:40:110
11767993913,11cyclictest5703-21stress10:40:270
11767993912,17cyclictest5703-21stress12:10:350
11769993810,25cyclictest0-21swapper/110:16:241
1176799387,28cyclictest0-21swapper/011:10:020
1176799385,26cyclictest0-21swapper/008:45:060
11767993823,13cyclictest0-21swapper/010:20:150
11767993823,13cyclictest0-21swapper/010:20:150
11767993823,13cyclictest0-21swapper/009:15:310
11767993814,14cyclictest23230-21if_eth107:30:170
11767993813,14cyclictest5706-21stress10:26:470
11767993811,20cyclictest0-21swapper/008:15:200
11767993811,19cyclictest0-21swapper/007:10:160
11767993811,14cyclictest5706-21stress09:30:010
64142375,13sleep20-21swapper/208:02:322
38222375,13sleep30-21swapper/307:55:513
185142375,13sleep30-21swapper/308:27:513
1176999377,27cyclictest0-21swapper/110:41:291
1176999375,30cyclictest0-21swapper/109:23:401
11769993714,21cyclictest0-21swapper/110:10:161
11769993713,14cyclictest0-21swapper/112:01:151
11769993710,25cyclictest0-21swapper/109:11:061
11769993710,25cyclictest0-21swapper/109:11:061
11767993727,6cyclictest21433-21apt-get08:35:120
11767993716,6cyclictest2073-21apt-get07:55:110
11767993715,6cyclictest29784-21cut07:45:110
11767993715,5cyclictest24986-21cut07:35:120
11767993713,5cyclictest7333-21cstates08:05:120
11767993713,5cyclictest7333-21cstates08:05:120
11767993712,15cyclictest32405-21aten2_r7power_c10:05:140
11767993711,13cyclictest5702-21stress12:30:170
11767993710,16cyclictest5703-21stress11:15:240
65832365,13sleep30-21swapper/308:04:213
269832365,13sleep30-21swapper/307:39:473
1177099365,16cyclictest0-21swapper/210:54:192
11769993615,18cyclictest0-21swapper/111:39:551
11769993615,18cyclictest0-21swapper/111:39:551
1176799368,21cyclictest0-21swapper/008:42:240
1176799366,17cyclictest0-21swapper/007:24:530
11767993616,5cyclictest31098-21apt-get08:55:100
11767993615,12cyclictest14464-21munin-node07:15:030
11767993610,19cyclictest0-21swapper/008:00:190
113042365,13sleep10-21swapper/108:13:171
4362355,13sleep30-21swapper/308:57:113
317402355,13sleep20-21swapper/207:49:242
256242355,13sleep30-21swapper/308:41:353
231442355,13sleep10-21swapper/108:35:311
142212355,13sleep10-21swapper/108:20:071
11771993513,19cyclictest0-21swapper/311:04:003
11770993517,15cyclictest0-21swapper/209:37:422
1176999359,23cyclictest0-21swapper/111:55:031
1176999359,17cyclictest0-21swapper/110:45:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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