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2023-01-27 - 14:49

x86 Intel Xeon-E31220L @2200 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #5, 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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack5slot0.osadl.org (updated Fri Jan 27, 2023 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1425421580,1sleep0449099cyclictest11:45:190
2560321260,1sleep325604-21bash09:18:173
341921250,1sleep20-21swapper/209:30:152
789221190,2sleep27890-21bash09:16:442
3031521190,2sleep230310-21sshd09:21:252
2805021130,1sleep128052-21bash12:22:521
1663121070,3sleep30-21swapper/312:21:493
4165210133,63sleep10-21swapper/107:09:021
114321010,4sleep20-21swapper/211:05:092
57402970,3sleep30-21swapper/312:01:173
123752940,3sleep10-21swapper/110:24:081
75232930,2sleep10-21swapper/112:37:501
176392910,1sleep117642-21sshd11:59:351
79002900,2sleep17894-21sshd11:22:281
79002900,2sleep17894-21sshd11:22:281
174022900,3sleep2450199cyclictest10:19:002
88242890,3sleep10-21swapper/109:30:371
29442870,2sleep22939-21sshd10:51:112
14172870,2sleep11416-21sshd10:03:361
122192860,2sleep10-21swapper/109:19:551
10992860,1sleep041ktimersoftd/009:32:490
399928531,50sleep30-21swapper/307:06:573
206322850,1sleep30-21swapper/311:23:343
206322850,1sleep30-21swapper/311:23:343
231732840,2sleep30-21swapper/311:54:283
204812840,2sleep120480-21bash09:37:151
204812840,2sleep120480-21bash09:37:151
153082830,1sleep315304-21sshd11:03:343
197312820,2sleep30-21swapper/312:30:273
44322810,1sleep14412-21sshd10:34:381
69302800,2sleep36929-21bash11:33:323
69302800,2sleep36929-21bash11:33:313
235492800,2sleep10-21swapper/111:51:411
235052800,2sleep323488-21sshd09:43:063
235052800,2sleep323488-21sshd09:43:053
195732800,2sleep219574-21sshd12:30:262
141742800,2sleep30-21swapper/309:22:493
254782770,1sleep325476-21sshd11:37:573
183042770,3sleep3450699cyclictest09:48:153
183522760,1sleep118346-21sshd09:28:451
164672760,3sleep0449099cyclictest09:53:410
286352750,0sleep00-21swapper/010:28:190
204732750,1sleep30-21swapper/312:05:223
54112740,2sleep35413-21sshd09:55:283
57682730,2sleep30-21swapper/310:03:583
157542720,2sleep10-21swapper/111:25:521
114262680,2sleep111429-21sshd11:17:101
55312640,3sleep2450199cyclictest11:36:112
401326431,20sleep20-21swapper/207:07:072
415925932,4sleep00-21swapper/007:08:580
299512550,3sleep1449799cyclictest12:31:211
89502470,4sleep20-21swapper/209:47:252
182292430,41sleep228750irq/26-ahci[00012:16:202
43262320,3sleep0449099cyclictest09:21:580
63622310,1sleep30-21swapper/311:55:443
97382301,26sleep1138550irq/27-eth009:53:061
232512300,2sleep323255-21bash10:55:453
124652290,3sleep20-21swapper/212:07:302
99752280,2sleep29935-21sshd09:50:192
87462280,26sleep3138550irq/27-eth010:26:353
286922280,2sleep30-21swapper/311:49:233
45432270,25sleep3138550irq/27-eth012:12:243
10402270,0sleep00-21swapper/010:51:010
69892260,5sleep20-21swapper/210:43:132
69872260,4sleep236-21rcuop/211:47:302
225842260,1sleep022579-21cp12:22:230
126642260,4sleep2450199cyclictest11:22:532
126642260,4sleep2450199cyclictest11:22:532
122902252,21sleep1138550irq/27-eth012:07:301
449099240,22cyclictest11011-21id11:39:310
90672230,21sleep3138550irq/27-eth011:14:133
79302230,4sleep30-21swapper/311:25:143
69302230,1sleep041ktimersoftd/011:41:550
20722230,2sleep22068-21sshd10:06:262
450199220,19cyclictest33-21ksoftirqd/211:02:062
321422220,1sleep11877-21nfsd10:17:271
207052210,19sleep3138550irq/27-eth010:19:183
61472200,1sleep10-21swapper/110:45:531
4501992016,3cyclictest27389-21bash11:12:572
301422200,1sleep030135-21bash11:55:050
136452200,0sleep20-21swapper/211:34:072
136452200,0sleep20-21swapper/211:34:072
450699190,16cyclictest0-21swapper/310:10:343
450199193,11cyclictest1877-21nfsd08:53:302
450199193,10cyclictest1877-21nfsd10:25:192
4501991916,2cyclictest28496-21bash10:03:072
4501991911,6cyclictest28531-21sshd09:43:332
4501991911,6cyclictest28531-21sshd09:43:332
4497991917,1cyclictest0-21swapper/108:19:431
449799191,13cyclictest17224-21sshd10:52:261
269792190,2sleep1449799cyclictest10:14:141
261012190,2sleep10-21swapper/109:46:051
208532192,15sleep3138550irq/27-eth009:54:053
116892190,1sleep10-21swapper/112:10:131
6382180,1sleep0629-21rm12:34:290
450699183,6cyclictest1876-21nfsd12:25:343
450699183,6cyclictest1876-21nfsd12:25:343
450699182,15cyclictest0-21swapper/312:39:083
4506991814,3cyclictest20993-21sshd10:22:043
4506991812,1cyclictest13056-21bash11:08:573
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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