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2023-01-28 - 08:07

x86 Intel Xeon E5620 @2400 MHz, Linux 4.19.127-rt55 (Profile)

Latency plot of system in rack #c, 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 -Up99 -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 rackcslot0.osadl.org (updated Sat Jan 28, 2023 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1697821860,6sleep9212299cyclictest00:40:3415
12212132103,24sleep90-21swapper/919:15:5315
16012123107,12sleep00-21swapper/019:20:160
369721220,1sleep40-21swapper/423:36:3310
1409212092,23sleep110-21swapper/1119:18:193
1339212092,24sleep150-21swapper/1519:17:197
1252211892,21sleep10-21swapper/119:16:171
14372117102,11sleep30-21swapper/319:18:439
12642117102,10sleep130-21swapper/1319:16:295
1317211588,22sleep120-21swapper/1219:17:004
505210791,10sleep50-21swapper/519:15:4911
2465121060,2sleep7731ktimersoftd/721:43:1113
2465121060,2sleep7731ktimersoftd/721:43:1113
1837021050,6sleep15213199cyclictest23:38:377
673521040,1sleep121121rcuc/1200:11:444
673521040,1sleep121121rcuc/1200:11:444
3189621040,1sleep151361rcuc/1521:52:097
3189621040,1sleep151361rcuc/1521:52:097
2989821040,1sleep10-21swapper/123:57:381
2989821040,1sleep10-21swapper/123:57:381
2562921040,1sleep110-21swapper/1122:47:273
2392421040,3sleep11212499cyclictest21:22:233
124621020,1sleep30-21swapper/321:40:269
124621020,1sleep30-21swapper/321:40:269
99621010,1sleep30-21swapper/321:48:129
99621010,1sleep30-21swapper/321:48:129
330921010,2sleep90-21swapper/900:38:4215
386221000,6sleep6211799cyclictest00:11:2212
386221000,6sleep6211799cyclictest00:11:2212
185221000,2sleep10-21swapper/100:15:341
157162990,1sleep140-21swapper/1421:50:156
157162990,1sleep140-21swapper/1421:50:156
251882980,5sleep8212199cyclictest00:24:4614
122142980,1sleep140-21swapper/1421:37:096
212562950,1sleep30-21swapper/322:12:169
253492940,1sleep60-21swapper/600:29:0112
114562910,0sleep60-21swapper/622:32:5512
181282900,7sleep13212999cyclictest23:38:355
284042890,7sleep13212999cyclictest23:09:415
256762880,0sleep40-21swapper/422:51:5310
213302880,2sleep1221329-21cp22:51:134
175442880,0sleep80-21swapper/823:08:0014
125828872,4sleep70-21swapper/719:16:2313
162152860,0sleep50-21swapper/500:12:5711
162152860,0sleep50-21swapper/500:12:5711
154428672,7sleep20-21swapper/219:19:308
146328672,10sleep80-21swapper/819:19:0414
122628665,16sleep140-21swapper/1419:15:586
127628572,8sleep60-21swapper/619:16:3812
164352840,0sleep120-21swapper/1223:30:004
137028375,4sleep100-21swapper/1019:17:462
134528375,4sleep40-21swapper/419:17:2410
326952820,0sleep90-21swapper/900:20:4715
175392670,1sleep30-21swapper/300:13:119
175392670,1sleep30-21swapper/300:13:119
90252600,1sleep131211ktimersoftd/1320:05:405
51582420,1sleep10-21swapper/121:20:211
293302380,0sleep20-21swapper/222:39:338
211199374,30cyclictest0-21swapper/222:45:198
260042360,1sleep90-21swapper/900:10:2115
260042360,1sleep90-21swapper/900:10:2115
2111993611,15cyclictest91531sshd22:27:588
221982340,0sleep70-21swapper/722:55:4113
211199349,22cyclictest22527-21sshd23:26:018
211199342,22cyclictest0-21swapper/200:03:198
211199342,22cyclictest0-21swapper/200:03:198
185612340,2sleep140-21swapper/1422:42:096
143072340,1sleep70-21swapper/700:17:3213
76322330,6sleep1211099cyclictest23:41:191
211299330,26cyclictest0-21swapper/321:37:289
211199334,27cyclictest0-21swapper/221:52:268
211199334,27cyclictest0-21swapper/221:52:268
211199330,30cyclictest10311-21systemd-cgroups23:59:248
211199330,30cyclictest10311-21systemd-cgroups23:59:248
161262330,4sleep11212499cyclictest22:59:133
152452330,1sleep60-21swapper/600:08:5712
152452330,1sleep60-21swapper/600:08:5712
146752330,1sleep10-21swapper/100:04:211
146752330,1sleep10-21swapper/100:04:211
211199321,29cyclictest0-21swapper/200:49:328
178902320,28sleep140-21swapper/1423:20:576
230532310,0sleep70-21swapper/722:42:5013
221972310,2sleep233-21ksoftirqd/200:36:438
211299316,19cyclictest0-21swapper/321:23:549
211299312,22cyclictest21751-21sshd22:03:529
2111993125,3cyclictest969-21dbus-daemon22:05:328
211199311,28cyclictest0-21swapper/200:22:198
196352318,19sleep00-21swapper/021:42:330
196352318,19sleep00-21swapper/021:42:330
167632310,2sleep1098-21ksoftirqd/1022:37:482
267682300,1sleep100-21swapper/1021:43:302
267682300,1sleep100-21swapper/1021:43:302
229092300,1sleep70-21swapper/700:50:1113
212299302,25cyclictest968-21systemd-logind23:37:1315
2112993026,2cyclictest97450irq/37-eth0-TxR23:19:169
211299300,23cyclictest0-21swapper/322:29:389
211299300,22cyclictest969-21dbus-daemon22:53:119
211199307,20cyclictest0-21swapper/200:40:568
211199306,21cyclictest969-21dbus-daemon22:25:178
211199304,23cyclictest0-21swapper/223:24:038
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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