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2022-01-26 - 13:15

Intel(R) Xeon(R) CPU E31220 @ 3.10GHz, 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 50 highest latencies:
System rack1slot0.osadl.org (updated Wed Jan 26, 2022 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2610221060,0sleep026101-21grep23:30:460
312232880,0sleep20-21swapper/221:53:582
137662730,2sleep22504599cyclictest22:29:392
82702650,1sleep132710-21kworker/1:322:03:221
122252650,0sleep012223-21sshd21:26:110
2475726250,7sleep20-21swapper/219:08:212
224632610,0sleep20-21swapper/222:04:392
157112600,1sleep315712-21bash21:29:383
271352590,0sleep10-21swapper/122:48:011
266012590,1sleep3391rcuc/322:42:143
203912590,0sleep30-21swapper/321:23:583
116272590,0sleep10-21swapper/100:21:071
201722580,0sleep10-21swapper/121:50:081
296532570,0sleep00-21swapper/000:05:320
2463925734,7sleep00-21swapper/019:07:030
2458325734,7sleep30-21swapper/319:06:223
230332570,0sleep123037-21bash21:44:391
221882570,0sleep00-21swapper/023:04:460
170432570,0sleep20-21swapper/221:29:462
117932570,0sleep20-21swapper/200:06:512
313642560,0sleep10-21swapper/123:22:421
313642560,0sleep10-21swapper/123:22:421
290902560,0sleep20-21swapper/223:11:012
266732550,0sleep20-21swapper/221:36:192
266732550,0sleep20-21swapper/221:36:192
209072550,0sleep20-21swapper/221:24:012
192592550,0sleep30-21swapper/322:35:493
140632550,0sleep10-21swapper/122:52:341
252782540,0sleep00-21swapper/021:15:220
2402725139,7sleep10-21swapper/119:05:281
310962500,0sleep30-21swapper/300:22:533
63212450,1sleep1241ktimersoftd/123:37:401
154282430,0sleep00-21swapper/023:50:010
148552250,2sleep32505399cyclictest00:04:193
135242250,0sleep20-21swapper/223:01:042
161272190,13sleep395750irq/24-eno1-rx-23:15:353
47192170,0sleep00-21swapper/022:37:260
37682170,0sleep00-21swapper/023:20:170
37682170,0sleep00-21swapper/023:20:170
299802170,0sleep20-21swapper/222:13:532
187942170,1sleep318790-21lspci00:16:013
128912170,0sleep00-21swapper/021:46:340
93872160,0sleep3820-21dbus-daemon23:40:473
278292160,0sleep30-21swapper/300:25:263
255572160,0sleep2311rcuc/221:59:092
238432160,0sleep00-21swapper/023:27:460
226732160,2sleep322667-21sshd21:18:083
213182160,0sleep00-21swapper/022:53:130
44852150,0sleep10-21swapper/100:11:541
310132150,0sleep1231rcuc/122:05:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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