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2022-10-04 - 02:12

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #a, 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 -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 highest latencies:
System rackaslot0.osadl.org (updated Mon Oct 03, 2022 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90852960,0sleep29084-21sshd10:58:552
231422900,0sleep20-21swapper/212:36:372
180872750,0sleep20-21swapper/212:24:272
1228226225,19sleep30-21swapper/307:06:403
13782600,1sleep31349-21sshd11:50:233
275452580,1sleep027546-21sshd10:09:050
33262560,1sleep03280-21sshd11:18:280
20502560,1sleep02042-21cp10:03:570
144602560,0sleep041ktimersoftd/010:13:380
135912560,0sleep00-21swapper/012:29:580
313892550,1sleep041ktimersoftd/010:32:180
234762550,0sleep10-21swapper/110:05:461
185342550,1sleep018533-21seq10:42:350
134912550,1sleep013450-21sshd09:19:140
1242825432,18sleep10-21swapper/107:08:301
109142530,0sleep03-21ksoftirqd/010:39:070
213352520,0sleep021322-21sshd11:02:500
175732520,0sleep30-21swapper/312:24:253
1231125230,18sleep20-21swapper/207:07:042
190152510,0sleep318957-21sshd10:05:253
178922510,0sleep10-21swapper/112:24:261
315312500,0sleep031516-21sshd10:15:100
255752500,0sleep10-21swapper/110:11:431
216332500,0sleep10-21swapper/111:49:211
130482500,1sleep113019-21sshd12:29:551
51162490,0sleep30-21swapper/311:59:413
278312490,1sleep05503-21diskmemload10:57:420
1019024925,19sleep00-21swapper/007:05:010
99272480,1sleep31776-21runrttasks10:24:443
76582480,1sleep010-21rcuc/010:21:350
327562480,1sleep232732-21sshd09:55:132
201152480,1sleep320100-21sshd11:46:113
67722460,0sleep10-21swapper/109:58:371
190042460,0sleep30-21swapper/309:25:223
65572450,2sleep11279299cyclictest09:41:261
236252450,1sleep223613-21sshd10:23:022
260342440,0sleep30-21swapper/309:34:403
16352420,0sleep21593-21sshd10:49:412
219992410,0sleep11535-21nfsd09:25:361
232052400,0sleep023204-21bash09:22:550
45872390,0sleep20-21swapper/212:32:012
198992390,2sleep11279299cyclictest10:48:241
212392370,0sleep230-21ksoftirqd/211:25:432
230832240,0sleep041ktimersoftd/012:30:420
12792992220,1cyclictest31488-21sshd10:00:421
12792992217,1cyclictest31168-21sshd11:38:241
144752210,0sleep30-21swapper/310:59:243
12797992119,1cyclictest0-21swapper/211:31:262
184292200,0sleep10-21swapper/110:36:511
1279799200,19cyclictest0-21swapper/211:12:122
196742180,0sleep00-21swapper/012:12:440
319842170,1sleep00-21swapper/012:19:490
290592170,1sleep129056-21bash12:16:291
220782170,0sleep122075-21sshd09:11:231
12789991715,1cyclictest26890-21sshd11:06:120
1279299169,2cyclictest0-21swapper/112:12:291
1278999169,4cyclictest0-21swapper/009:11:000
1278999160,4cyclictest0-21swapper/011:34:220
289732150,1sleep328965-21sshd10:49:143
239382150,0sleep10-21swapper/109:17:161
12797991514,1cyclictest0-21swapper/209:49:592
1278999158,6cyclictest20811-21id11:49:160
1278999158,3cyclictest0-21swapper/011:26:040
12789991510,2cyclictest14795-21sshd12:03:280
1278999150,12cyclictest653-21sshd12:08:050
121012150,0sleep339-21ksoftirqd/310:19:113
1280199147,2cyclictest0-21swapper/311:13:443
12801991410,1cyclictest3608-21sshd11:32:553
1280199140,1cyclictest2590-21sshd09:35:243
1280199140,13cyclictest0-21swapper/312:19:243
1279799144,1cyclictest30-21ksoftirqd/209:18:052
12797991412,1cyclictest14365-21sshd09:42:092
12797991412,1cyclictest0-21swapper/210:42:242
12797991412,1cyclictest0-21swapper/209:23:032
1279299149,1cyclictest0-21swapper/111:53:111
1279299148,2cyclictest6774-21sshd12:38:081
1279299148,2cyclictest0-21swapper/110:30:231
1279299148,1cyclictest25738-21sshd11:43:491
1279299148,1cyclictest25738-21sshd11:43:491
1279299148,1cyclictest0-21swapper/109:22:431
1279299142,9cyclictest118850irq/25-eth010:50:441
12792991412,1cyclictest0-21swapper/110:22:461
1279299140,5cyclictest0-21swapper/110:56:401
1278999148,5cyclictest0-21swapper/009:56:590
1278999148,3cyclictest11664-21sshd10:50:280
1278999146,5cyclictest25470-21bash11:23:150
1278999140,1cyclictest0-21swapper/009:40:130
1278999140,13cyclictest1776-21runrttasks10:27:270
1278999140,13cyclictest0-21swapper/012:36:340
1278999140,13cyclictest0-21swapper/011:52:090
1278999140,11cyclictest29784-21sshd11:41:100
1278999140,11cyclictest29784-21sshd11:41:100
1278999140,11cyclictest0-21swapper/012:23:080
1278999140,11cyclictest0-21swapper/011:13:280
1278999140,11cyclictest0-21swapper/009:46:540
69112130,0sleep30-21swapper/310:33:003
1280199139,2cyclictest0-21swapper/311:01:223
1280199138,4cyclictest31425-21sshd10:00:433
1280199138,4cyclictest0-21swapper/312:35:293
1280199138,2cyclictest4637-21ntp_kernel_pll_09:55:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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