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2022-05-26 - 19:17

x86 Intel Xeon E3-1220 @3100 MHz, Linux 4.19.8-rt6 (Profile)

Latency plot of system in rack #1, 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 rack1slot0.osadl.org (updated Thu May 26, 2022 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2243121210,2sleep22907799cyclictest09:47:292
197662830,0sleep20-21swapper/211:08:142
138712660,1sleep113870-21sshd09:49:171
326362650,0sleep3401ktimersoftd/312:32:253
41702640,1sleep01-21systemd10:21:480
246422640,0sleep30-21swapper/311:41:533
189652640,0sleep30-21swapper/310:01:293
24412630,0sleep20-21swapper/211:35:272
60512620,0sleep00-21swapper/011:52:230
148832610,0sleep20-21swapper/210:20:152
146722610,0sleep114607-21sshd09:37:261
2876026038,7sleep20-21swapper/207:07:382
266732600,1sleep21-21systemd11:58:412
261182590,1sleep2311rcuc/211:03:582
103062590,0sleep20-21swapper/210:46:072
103062590,0sleep20-21swapper/210:46:072
74022580,0sleep30-21swapper/309:58:153
4722580,0sleep00-21swapper/010:59:430
232372580,0sleep00-21swapper/011:01:190
206332580,0sleep10-21swapper/109:16:121
206332580,0sleep10-21swapper/109:16:111
95372570,0sleep20-21swapper/212:16:252
2875625735,7sleep30-21swapper/307:07:363
182212570,0sleep20-21swapper/210:53:522
300582560,0sleep30-21swapper/310:47:363
300582560,0sleep30-21swapper/310:47:363
296042560,0sleep20-21swapper/211:30:182
2856525635,6sleep00-21swapper/007:05:270
76672550,0sleep00-21swapper/011:31:040
54322550,0sleep10-21swapper/112:06:381
35052540,0sleep10-21swapper/110:48:021
35052540,0sleep10-21swapper/110:48:021
233932540,1sleep223391-21sshd12:26:592
170572540,0sleep30-21swapper/311:10:243
161592530,0sleep20-21swapper/209:18:212
161592530,0sleep20-21swapper/209:18:212
134482520,2sleep12907199cyclictest07:50:131
2872124938,7sleep10-21swapper/107:07:131
227252450,0sleep10-21swapper/110:06:321
138002320,1sleep113796-21sshd09:44:321
282082250,1sleep332329-21polkitd10:21:123
202812250,0sleep00-21swapper/011:17:460
184752200,1sleep318472-21systemd-cgroups10:53:533
109272200,1sleep110924-21bash12:35:311
290252190,1sleep129021-21sshd12:13:071
185772190,0sleep20-21swapper/209:51:582
125112190,0sleep20-21swapper/209:58:382
99112180,0sleep00-21swapper/012:11:420
318052180,0sleep10-21swapper/109:12:071
27492180,0sleep30-21swapper/311:54:353
124732180,0sleep10-21swapper/111:48:071
147222170,0sleep214687-21sshd12:35:482
315892160,1sleep021564-21gdbus09:36:180
216782160,0sleep10-21swapper/112:03:061
29077991514,0cyclictest29297-21lspci11:11:162
173612150,0sleep00-21swapper/009:51:520
316482140,0sleep031647-21grep08:35:210
268162140,0sleep00-21swapper/012:36:420
108282140,0sleep10-21swapper/109:34:511
2906099130,1cyclictest1-21systemd12:31:480
148932130,0sleep00-21swapper/010:48:530
148932130,0sleep00-21swapper/010:48:530
140792130,2sleep32908499cyclictest12:35:453
29084991210,1cyclictest16095-21sshd11:31:423
2908499120,1cyclictest22954-21bash10:13:433
2908499120,1cyclictest17329-21lspci10:06:063
2907799125,4cyclictest33-21ksoftirqd/209:32:112
29077991211,0cyclictest20215-21lspci10:58:472
2907799120,11cyclictest867-21gdbus10:25:562
2907799120,11cyclictest4259-21sshd10:36:072
2907199122,3cyclictest801-21systemd-logind11:19:131
2907199122,2cyclictest25-21ksoftirqd/111:39:551
2907199122,2cyclictest25-21ksoftirqd/111:11:131
29071991210,1cyclictest801-21systemd-logind12:34:171
2907199120,1cyclictest24808-21sshd12:24:451
2907199120,11cyclictest909-21NetworkManager09:52:301
2907199120,11cyclictest31331-21bash11:40:021
2907199120,11cyclictest26403-21bash10:30:351
2907199120,11cyclictest21564-21gdbus10:25:171
2906099120,1cyclictest20092-21sshd10:08:450
2906099120,11cyclictest14064-21sshd10:17:480
2908499119,1cyclictest6059-21nscd11:06:303
29084991110,0cyclictest0-21swapper/311:39:363
2908499110,10cyclictest26158-21lspci09:19:083
2908499110,10cyclictest26158-21lspci09:19:073
2908499110,10cyclictest0-21swapper/311:00:423
2908499110,10cyclictest0-21swapper/310:19:023
2908499110,10cyclictest0-21swapper/309:53:223
2908499110,0cyclictest0-21swapper/312:29:593
2907799111,0cyclictest131rcu_sched10:18:302
29077991110,0cyclictest22747-21lspci12:05:302
2907799110,10cyclictest0-21swapper/211:16:292
2907199119,1cyclictest1-21systemd10:12:021
2907199116,1cyclictest25-21ksoftirqd/112:15:221
2907199113,2cyclictest25-21ksoftirqd/111:34:151
2907199112,1cyclictest25-21ksoftirqd/110:52:171
2907199112,1cyclictest25-21ksoftirqd/109:21:251
2907199111,0cyclictest131rcu_sched10:35:301
2907199110,1cyclictest0-21swapper/112:28:001
2907199110,10cyclictest0-21swapper/110:55:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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