You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-02-06 - 19:43

x86 Intel Core i3-2100T @2500 MHz, Linux 4.14.28-rt23 (Profile)

Latency plot of system in rack #0, 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 --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 rack0slot0.osadl.org (updated Mon Feb 06, 2023 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1677621240,0sleep50-21swapper/510:14:145
1145621180,0sleep60-21swapper/607:35:246
2188521110,0sleep20-21swapper/212:09:152
2596221090,0sleep7761rcuc/712:35:007
57222900,0sleep70-21swapper/709:16:537
150002890,1sleep3411ktimersoftd/309:28:593
27582840,0sleep20-21swapper/209:50:222
60952830,1sleep20-21swapper/211:14:402
9312810,1sleep1914-21sshd10:35:101
4922790,1sleep71041-21lldpd10:12:477
77792780,1sleep7761rcuc/711:00:417
77792780,1sleep7761rcuc/711:00:417
63612780,0sleep00-21swapper/012:38:540
285692780,1sleep30-21swapper/309:52:403
4832760,0sleep60-21swapper/610:49:026
3882760,0sleep00-21swapper/011:05:390
121062760,0sleep00-21swapper/011:15:090
193982750,0sleep10-21swapper/110:50:331
155312750,1sleep3411ktimersoftd/312:11:233
44322740,0sleep417303-21snmpd10:10:204
318182740,0sleep40-21swapper/411:30:444
26722740,1sleep62671-21sshd10:10:146
219122740,1sleep10-21swapper/111:13:091
175472740,0sleep7761rcuc/710:42:067
93742730,0sleep6681ktimersoftd/611:56:516
74002730,1sleep30-21swapper/311:39:573
34972730,0sleep10-21swapper/110:10:171
161822730,1sleep50-21swapper/511:20:595
155922720,0sleep6671rcuc/611:46:096
52352710,0sleep60-21swapper/610:18:486
18072710,1sleep41013-21runrttasks09:56:014
166032710,0sleep00-21swapper/011:43:320
5382700,0sleep50-21swapper/509:33:185
320612700,0sleep40-21swapper/412:38:174
316792700,1sleep131677-21sshd09:36:021
213332700,0sleep50-21swapper/512:26:005
69822670,2sleep13013199cyclictest09:59:271
241642640,0sleep00-21swapper/012:23:300
101192640,3sleep43014699cyclictest12:30:404
289402630,4sleep63016299cyclictest10:37:316
258802590,1sleep71-21systemd10:54:007
284612450,0sleep30-21swapper/310:29:113
303432420,0sleep70-21swapper/709:30:157
11352310,1sleep21121-21sshd11:39:242
30136992912,2cyclictest684-21dbus-daemon11:30:362
2979322723,3sleep40-21swapper/407:08:394
150772270,0sleep00-21swapper/010:50:160
3016799263,22cyclictest0-21swapper/711:47:097
3016799262,15cyclictest0-21swapper/710:04:457
299182260,0sleep00-21swapper/012:07:030
3016799253,21cyclictest0-21swapper/710:33:547
3016799252,21cyclictest0-21swapper/707:26:267
3016799243,4cyclictest0-21swapper/712:10:257
3016799242,4cyclictest0-21swapper/707:13:447
3016799242,21cyclictest0-21swapper/708:31:427
3016799240,1cyclictest15654-21sshd09:20:277
3016799240,1cyclictest0-21swapper/711:16:457
3016799240,19cyclictest0-21swapper/708:09:187
3016799240,19cyclictest0-21swapper/707:34:307
3016299244,1cyclictest0-21swapper/609:00:546
3016299242,21cyclictest0-21swapper/608:19:516
3016299240,5cyclictest0-21swapper/609:05:066
3016799232,4cyclictest0-21swapper/707:49:427
3016799230,1cyclictest0-21swapper/711:41:037
3016799230,1cyclictest0-21swapper/710:27:517
3016799223,1cyclictest768-21gdbus12:23:397
3016799222,1cyclictest0-21swapper/711:22:497
3016799222,1cyclictest0-21swapper/710:20:397
3016799222,1cyclictest0-21swapper/709:46:427
3016799220,2cyclictest0-21swapper/709:55:157
3016799220,21cyclictest0-21swapper/707:57:127
3016799220,1cyclictest0-21swapper/710:36:337
3016299222,2cyclictest17303-21snmpd12:10:256
3016299220,5cyclictest26442-21sshd09:30:006
30142992218,3cyclictest0-21swapper/310:17:013
3014299220,20cyclictest0-21swapper/310:23:433
3014299220,20cyclictest0-21swapper/308:24:303
3014299220,18cyclictest684-21dbus-daemon10:30:183
3013699220,4cyclictest23385-21grepconf.sh12:17:492
78262210,1sleep17823-21sshd11:42:431
3016799210,1cyclictest0-21swapper/711:38:307
3016299217,1cyclictest1493-21sshd09:16:306
3016299210,1cyclictest1011-21sshd10:50:306
3016299210,1cyclictest0-21swapper/610:32:366
3014299210,3cyclictest27842-21sshd09:44:093
3014299210,3cyclictest27842-21sshd09:44:093
3013699210,19cyclictest0-21swapper/211:46:362
322972200,1sleep50-21swapper/510:21:035
3016799203,15cyclictest0-21swapper/708:04:127
3016799201,1cyclictest30494-21perf12:09:597
3016799200,19cyclictest0-21swapper/709:53:337
3016799200,19cyclictest0-21swapper/709:00:307
3016799200,19cyclictest0-21swapper/708:58:337
3016799200,19cyclictest0-21swapper/708:48:157
3016799200,19cyclictest0-21swapper/708:48:157
3016799200,19cyclictest0-21swapper/708:24:517
3016799200,19cyclictest0-21swapper/707:35:027
3016799200,15cyclictest0-21swapper/707:21:487
3016799200,15cyclictest0-21swapper/707:21:477
30162992018,1cyclictest2011-21sshd09:33:266
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional