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2022-05-27 - 17:28

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.32-rt39 (Profile)

Latency plot of system in rack #0, slot #7
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot7.osadl.org (updated Fri May 27, 2022 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7737662383377,3sleep140-21swapper/1419:06:386
7740972363357,3sleep80-21swapper/819:09:1214
7741672362356,3sleep20-21swapper/219:09:548
7740302361354,4sleep60-21swapper/619:08:3812
7738182356338,10sleep70-21swapper/719:07:0313
7735422356337,9sleep130-21swapper/1319:05:325
7737612355349,3sleep90-21swapper/919:06:3315
7738132351339,7sleep30-21swapper/319:06:599
7737782349341,4sleep50-21swapper/519:06:4411
7740682343324,11sleep100-21swapper/1019:08:582
7737492343324,11sleep10-21swapper/119:06:241
7740802342324,10sleep150-21swapper/1519:09:037
7738352342323,11sleep40-21swapper/419:07:1610
7740462341321,11sleep00-21swapper/019:08:480
7738242340320,11sleep120-21swapper/1219:07:084
7735402336317,10sleep110-21swapper/1119:05:303
774511995958,1cyclictest0-21swapper/1323:57:365
77449699580,58cyclictest0-21swapper/1021:40:342
774463995452,0cyclictest0-21swapper/119:16:021
774509994646,0cyclictest772191-1kworker/u33:022:21:085
774477994646,0cyclictest772191-1kworker/u33:020:41:5411
774481994241,1cyclictest772191-1kworker/u33:020:37:4712
77447799428,17cyclictest983399-21TaskCon~ller2
77447799428,17cyclictest983399-21TaskCon~ller2
140099400,0ntpd0-21swapper/1523:27:267
140099400,0ntpd0-21swapper/1520:27:257
774504993837,1cyclictest230632-1kworker/u33:120:04:004
774511993736,1cyclictest767132-21thunderbird21:12:146
774511993736,1cyclictest767132-21thunderbird21:12:146
774485993535,0cyclictest0-21swapper/721:48:2413
774514993433,1cyclictest764179-21InputThread23:57:2012
77449099344,22cyclictest371rcuc/322:54:489
77449099344,22cyclictest371rcuc/322:54:479
77449099333,24cyclictest371rcuc/322:56:089
77449099333,24cyclictest371rcuc/322:56:089
774485993333,0cyclictest764179-21InputThread19:10:3013
774485993333,0cyclictest764179-21InputThread19:10:2913
77447799315,15cyclictest0-21swapper/323:29:429
774463993130,1cyclictest772191-1kworker/u33:022:39:221
774463993130,1cyclictest772191-1kworker/u33:020:56:481
774475993030,0cyclictest0-21swapper/419:47:0710
774477992923,4cyclictest0-21swapper/422:55:1110
774477992923,4cyclictest0-21swapper/422:55:1110
774466992826,1cyclictest983899-21DOM19:26:184
774477992723,3cyclictest115-21ksoftirqd/1422:55:116
774477992723,3cyclictest115-21ksoftirqd/1422:55:116
774477992712,4cyclictest0-21swapper/1023:49:222
77447599270,27cyclictest0-21swapper/422:25:1810
77446199271,11cyclictest0-21swapper/1322:53:335
77446199271,11cyclictest0-21swapper/1322:53:335
774511992613,0cyclictest0-21swapper/1419:59:106
77451199260,15cyclictest0-21swapper/523:54:3111
774496992626,0cyclictest0-21swapper/1222:45:204
774496992626,0cyclictest0-21swapper/1222:45:204
77449099261,24cyclictest31-21ksoftirqd/223:54:058
774485992625,1cyclictest767255-21Renderer22:08:0413
77448599260,16cyclictest764475-21gnome-shell22:04:3013
77447799269,9cyclictest0-21swapper/1022:53:342
77447799269,9cyclictest0-21swapper/1022:53:332
140099260,0ntpd66-21ksoftirqd/723:21:2613
77451499250,15cyclictest0-21swapper/1522:24:467
77451499250,15cyclictest0-21swapper/1521:41:517
77451499250,15cyclictest0-21swapper/1520:23:387
77451499250,15cyclictest0-21swapper/1519:24:417
77451499250,15cyclictest0-21swapper/1519:12:057
77451499250,15cyclictest0-21swapper/1519:12:057
77451499250,15cyclictest0-21swapper/123:29:551
77451199250,15cyclictest813001-21ssh21:22:146
77451199250,15cyclictest0-21swapper/1422:17:286
77450999250,15cyclictest0-21swapper/1322:11:115
77450999250,15cyclictest0-21swapper/1321:43:145
77450499250,15cyclictest0-21swapper/1222:30:304
77450099250,15cyclictest0-21swapper/1122:51:523
77450099250,15cyclictest0-21swapper/1122:51:523
77450099250,15cyclictest0-21swapper/1121:29:393
77450099250,15cyclictest0-21swapper/1119:33:393
77449699250,15cyclictest0-21swapper/1021:51:122
77449699250,15cyclictest0-21swapper/1020:55:552
77449299250,15cyclictest767263-21WRWorker#722:07:0215
77449299250,15cyclictest764475-21gnome-shell23:13:4913
77449299250,15cyclictest0-21swapper/921:42:2115
77449299250,15cyclictest0-21swapper/920:12:0915
77449299250,15cyclictest0-21swapper/920:09:4215
774490992517,5cyclictest651rcuc/722:55:1213
774490992517,5cyclictest651rcuc/722:55:1213
77449099250,15cyclictest0-21swapper/823:33:4714
77449099250,15cyclictest0-21swapper/1323:18:505
77449099250,15cyclictest0-21swapper/1023:30:072
774485992525,0cyclictest764179-21InputThread20:08:5213
774485992514,10cyclictest779996-21Isolated19:26:1813
77448599250,15cyclictest988309-21Isolated19:26:1811
77448599250,15cyclictest767373-21Web19:26:1813
77448599250,15cyclictest766863-21TaskCon~ller13
77448599250,15cyclictest766844-21Isolated19:26:1813
77448599250,15cyclictest764475-21gnome-shell22:18:4913
77448599250,15cyclictest764475-21gnome-shell21:00:4813
77448599250,15cyclictest0-21swapper/721:12:2013
77448599250,15cyclictest0-21swapper/721:12:2013
77448199250,15cyclictest0-21swapper/621:03:5212
77448199250,15cyclictest0-21swapper/1023:57:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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