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2023-04-02 - 05:12

x86 Intel Xeon E3-1220 @3100 MHz, Linux 4.19.1-rt3 (Profile)

Latency plot of system in rack #2, 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 rack2slot0.osadl.org (updated Sun Apr 02, 2023 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270382760,0sleep2321ktimersoftd/223:01:212
139912640,1sleep10-21swapper/122:09:391
182942560,0sleep10-21swapper/119:10:191
239122550,0sleep30-21swapper/322:20:133
132052530,0sleep20-21swapper/222:50:002
29212520,0sleep00-21swapper/000:16:490
235842520,0sleep20-21swapper/222:36:062
224092520,0sleep30-21swapper/322:27:503
217432510,0sleep30-21swapper/321:30:433
234442500,0sleep30-21swapper/322:36:033
224582480,0sleep00-21swapper/000:05:270
210422470,0sleep10-21swapper/123:48:591
58352460,0sleep30-21swapper/321:59:273
63172430,0sleep30-21swapper/300:09:463
269122380,0sleep30-21swapper/319:30:193
1718023312,6sleep20-21swapper/219:08:292
1705923211,7sleep10-21swapper/119:07:001
171612308,7sleep30-21swapper/319:08:143
1718822513,7sleep00-21swapper/019:08:360
5612190,0sleep00-21swapper/000:24:330
50912190,0sleep10-21swapper/122:55:491
28022150,0sleep00-21swapper/023:44:240
203532150,0sleep10-21swapper/121:30:251
110832150,0sleep30-21swapper/300:10:403
121632140,0sleep00-21swapper/021:12:180
74592130,0sleep10-21swapper/121:35:221
38742130,0sleep20-21swapper/223:36:172
1742099130,11cyclictest10835-21sshd23:13:463
1741399130,12cyclictest0-21swapper/121:45:451
164252130,0sleep30-21swapper/321:53:593
1741499120,11cyclictest19439-21sshd22:02:432
1741399120,1cyclictest633-21polkitd00:31:461
17412991210,1cyclictest23983-21sshd22:03:580
1742099119,1cyclictest6784-21lspci22:40:173
1742099119,1cyclictest0-21swapper/323:59:273
1742099110,10cyclictest0-21swapper/323:39:363
1741499110,10cyclictest0-21swapper/222:15:132
1741499110,10cyclictest0-21swapper/221:42:042
1741499110,10cyclictest0-21swapper/220:00:232
1741499110,10cyclictest0-21swapper/219:45:232
1741499110,10cyclictest0-21swapper/200:01:232
1741499110,0cyclictest0-21swapper/221:45:532
17413991110,0cyclictest0-21swapper/123:17:161
1741399110,10cyclictest0-21swapper/123:53:061
1741399110,10cyclictest0-21swapper/123:29:161
1741399110,10cyclictest0-21swapper/122:21:561
1741399110,10cyclictest0-21swapper/121:58:561
1741399110,10cyclictest0-21swapper/100:02:571
1741399110,0cyclictest0-21swapper/123:23:171
1741299110,10cyclictest0-21swapper/021:41:270
1741299110,10cyclictest0-21swapper/000:02:190
1741299110,0cyclictest0-21swapper/023:04:180
209532100,0sleep2311rcuc/221:38:512
1742099109,0cyclictest0-21swapper/323:29:463
1742099109,0cyclictest0-21swapper/323:07:373
1742099109,0cyclictest0-21swapper/322:34:173
1742099109,0cyclictest0-21swapper/322:13:563
1742099109,0cyclictest0-21swapper/319:15:263
1742099109,0cyclictest0-21swapper/319:15:263
1742099109,0cyclictest0-21swapper/300:24:173
1742099109,0cyclictest0-21swapper/300:18:363
1742099108,1cyclictest0-21swapper/300:28:063
1742099100,9cyclictest0-21swapper/322:19:073
1742099100,9cyclictest0-21swapper/320:11:473
1742099100,0cyclictest0-21swapper/321:05:163
1742099100,0cyclictest0-21swapper/300:37:373
1741499109,0cyclictest0-21swapper/223:47:342
1741499109,0cyclictest0-21swapper/223:43:332
1741499109,0cyclictest0-21swapper/223:05:142
1741499109,0cyclictest0-21swapper/222:51:332
1741499109,0cyclictest0-21swapper/222:11:432
1741499109,0cyclictest0-21swapper/220:20:132
1741499109,0cyclictest0-21swapper/200:09:132
1741499108,1cyclictest23931-21id21:23:232
1741499108,1cyclictest0-21swapper/200:32:132
1741499100,0cyclictest0-21swapper/222:31:442
1741499100,0cyclictest0-21swapper/200:28:242
1741499100,0cyclictest0-21swapper/200:24:342
1741399109,0cyclictest0-21swapper/122:02:351
1741399109,0cyclictest0-21swapper/100:22:161
1741399108,1cyclictest0-21swapper/121:21:451
1741399100,9cyclictest0-21swapper/121:12:151
1741399100,0cyclictest0-21swapper/123:11:071
1741399100,0cyclictest0-21swapper/122:16:451
1741299109,0cyclictest0-21swapper/022:50:480
1741299109,0cyclictest0-21swapper/000:36:490
1741299100,0cyclictest0-21swapper/023:14:390
1741299100,0cyclictest0-21swapper/021:58:290
1741299100,0cyclictest0-21swapper/021:45:170
174209998,0cyclictest0-21swapper/323:53:363
174209998,0cyclictest0-21swapper/323:31:473
174209998,0cyclictest0-21swapper/322:06:573
174149998,0cyclictest0-21swapper/223:33:342
174149998,0cyclictest0-21swapper/219:51:132
174149997,1cyclictest633-21polkitd22:25:332
174149990,8cyclictest0-21swapper/220:34:132
174139998,0cyclictest0-21swapper/123:55:061
174139998,0cyclictest0-21swapper/121:51:251
174139998,0cyclictest0-21swapper/100:14:371
174139996,2cyclictest598-21avahi-daemon21:19:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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