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2021-09-28 - 10:09

Intel(R) Xeon(R) CPU E31220L @ 2.20GHz, 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 highest latencies:
System rack5slot0.osadl.org (updated Tue Sep 28, 2021 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1299121240,3sleep10-21swapper/123:14:221
408121170,0sleep00-21swapper/022:47:200
2790821160,3sleep22891399cyclictest23:04:572
28529210532,44sleep10-21swapper/119:07:281
28731210432,44sleep30-21swapper/319:09:583
29442980,1sleep010-21rcuc/022:10:250
215632960,2sleep02891199cyclictest23:19:020
196072930,0sleep00-21swapper/020:00:140
39742900,2sleep10-21swapper/100:38:571
225882900,4sleep022582-21sshd21:46:570
19842890,1sleep22891399cyclictest22:43:242
97712870,1sleep00-21swapper/022:33:170
52192870,1sleep35207-21sshd22:03:233
174172860,2sleep20-21swapper/200:14:182
199422850,2sleep10-21swapper/100:18:171
15662830,2sleep20-21swapper/222:21:172
313852820,1sleep10-21swapper/121:47:581
236512820,1sleep30-21swapper/322:09:123
17732810,0sleep00-21swapper/022:35:570
12932800,3sleep30-21swapper/323:12:593
326792790,2sleep20-21swapper/223:27:412
105512790,3sleep20-21swapper/221:16:212
247592780,1sleep30-21swapper/321:54:373
232922780,2sleep30-21swapper/300:29:583
321852760,1sleep032168-21sshd21:40:400
171652760,1sleep10-21swapper/123:44:311
229342750,2sleep10-21swapper/100:14:571
192502750,1sleep119234-21sshd23:07:351
129702740,0sleep00-21swapper/022:18:580
2857927332,12sleep20-21swapper/219:08:062
203072730,2sleep10-21swapper/100:03:271
150952730,1sleep10-21swapper/121:57:081
46462720,0sleep00-21swapper/023:24:310
163642720,2sleep20-21swapper/223:36:542
49672710,4sleep22891399cyclictest23:24:332
296062710,0sleep00-21swapper/023:49:390
88982700,0sleep00-21swapper/022:07:290
250112680,0sleep00-21swapper/023:52:480
14512680,4sleep22891399cyclictest21:37:172
12312670,3sleep12891299cyclictest23:27:471
99962660,1sleep30-21swapper/323:54:513
151102660,3sleep22891399cyclictest21:31:282
199832650,1sleep019973-21sshd23:37:210
2865125732,13sleep00-21swapper/019:08:590
70322470,1sleep10-21swapper/122:44:001
10472340,0sleep21048-21bash23:50:052
217672320,2sleep121761-21sshd22:27:171
294502310,1sleep30-21swapper/323:23:373
274742300,2sleep30-21swapper/300:19:123
45292290,27sleep2138550irq/27-eth000:09:062
171132290,27sleep2138550irq/27-eth023:07:222
96232280,26sleep2138550irq/27-eth000:28:212
317562280,26sleep228750irq/26-ahci[00022:46:472
269222280,1sleep20-21swapper/221:25:262
33112250,2sleep10-21swapper/100:27:351
145322250,2sleep20-21swapper/223:47:532
2891399230,15cyclictest28667-21sshd00:38:032
264912230,0sleep00-21swapper/023:30:360
264912230,0sleep00-21swapper/023:30:360
182752230,2sleep318277-21unixbench_singl22:30:283
326252220,20sleep1138550irq/27-eth021:51:471
2891399223,14cyclictest32523-21sshd23:42:322
2891399220,1cyclictest0-21swapper/220:21:532
2891199220,21cyclictest0-21swapper/020:59:330
144862220,20sleep1138550irq/27-eth023:21:521
138882220,20sleep3138550irq/27-eth021:42:203
2891399212,14cyclictest13206-21sshd23:58:552
2891399212,12cyclictest5572-21sshd22:25:232
318142200,3sleep331812-21bash22:35:403
2891199207,12cyclictest0-21swapper/021:30:160
2891199204,11cyclictest4029-21bash22:28:590
144252200,2sleep30-21swapper/321:38:453
28912991914,4cyclictest9030-21idleruntime-cro20:50:001
2891199197,9cyclictest0-21swapper/022:02:140
2891199197,11cyclictest7205-21nscd00:05:230
2891199197,11cyclictest3-21ksoftirqd/000:05:000
2891199194,12cyclictest26437-21consoletype21:21:490
2891199190,6cyclictest23479-21sshd23:11:470
202292190,1sleep120228-21sshd22:49:131
161002190,2sleep10-21swapper/121:31:341
136182190,2sleep30-21swapper/300:32:343
2891499182,13cyclictest12460-21dump-pmu-power00:09:593
2891499180,1cyclictest0-21swapper/319:46:433
2891499180,14cyclictest0-21swapper/321:11:243
2891399183,4cyclictest0-21swapper/220:06:122
2891399183,10cyclictest7904-21sshd23:10:032
2891399182,11cyclictest28083-21bash22:02:162
28912991810,6cyclictest14869-21sshd22:15:261
2891199188,8cyclictest3-21ksoftirqd/021:38:580
2891199181,13cyclictest0-21swapper/000:15:220
46362171,14sleep2138550irq/27-eth022:51:032
2891499178,7cyclictest10791-21sshd21:30:573
2891199171,3cyclictest0-21swapper/021:55:220
2891199171,1cyclictest11412-21kworker/0:020:35:320
2891199170,7cyclictest0-21swapper/021:50:210
2891199170,1cyclictest0-21swapper/023:27:560
230012171,14sleep1138550irq/27-eth022:38:281
189092170,3sleep32891499cyclictest00:03:173
179632170,15sleep1138550irq/27-eth023:00:081
102312170,15sleep1138550irq/27-eth022:11:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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