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2022-07-07 - 01:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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x86 Intel Core i9-10900K @3700 MHz, Linux 5.15.2-rt19 (Profile)

Latency plot of shadow in rack #0, slot #6
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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack0slot6s.osadl.org (updated Wed Jul 06, 2022 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278581899441440,1cyclictest3011348-21kworker/18:023:56:0910
278579199439432,2cyclictest2800318-21kworker/11:020:04:313
278576599431426,1cyclictest0-21swapper/320:04:3213
278581899427422,2cyclictest0-21swapper/1820:04:3210
278580499426421,2cyclictest0-21swapper/1420:04:326
278576599426426,0cyclictest64950irq/154-i91521:14:2013
2785818994251,424cyclictest2827750-21kworker/18:120:36:0710
278581899423422,1cyclictest2827750-21kworker/18:120:12:2910
278581899423422,1cyclictest2827750-21kworker/18:120:12:2910
2785785994230,423cyclictest0-21swapper/923:54:5619
278579199421421,0cyclictest2960232-21kworker/11:023:52:383
278581899418417,1cyclictest2734633-21kworker/18:019:30:4810
278579199418417,1cyclictest2960232-21kworker/11:000:04:123
278581899417416,1cyclictest2818591-21kworker/18:019:53:1710
278579199417417,0cyclictest2795708-21kworker/11:219:23:583
278578599415415,0cyclictest3057724-21turbostat00:05:0119
278581099414409,1cyclictest0-21swapper/1620:04:328
278576599412411,1cyclictest764395-21Xorg23:58:4913
278579199411411,0cyclictest0-21swapper/1119:53:163
278582399410407,3cyclictest2832360-21ffmpeg20:00:0011
278576599409408,1cyclictest0-21swapper/321:01:2513
278581899408406,2cyclictest765914-21Renderer23:46:5410
278580499408407,1cyclictest0-21swapper/1400:07:036
278578599407407,0cyclictest764900-40tracker-miner-f00:14:5519
278582399405405,0cyclictest2891835-21turbostat21:09:5511
278581099405405,0cyclictest0-21swapper/1620:51:148
278576599405405,0cyclictest0-21swapper/300:04:1113
278580499404404,0cyclictest0-21swapper/1421:08:246
278578599402399,3cyclictest2841531-21turbostat20:10:0119
278580499401401,0cyclictest0-21swapper/1400:01:206
278582399398398,0cyclictest0-21swapper/1900:15:0011
278581099395394,1cyclictest2993065-21kworker/u40:323:53:058
278578599395394,1cyclictest2836958-21turbostat20:05:0019
278582399394394,0cyclictest0-21swapper/1919:45:0011
278582399393393,0cyclictest2855218-21turbostat20:29:5611
278581099393393,0cyclictest0-21swapper/1620:28:188
278578599393391,2cyclictest3043674-21turbostat23:50:0119
278582399389389,0cyclictest3039108-21turbostat23:49:5611
278578599389388,1cyclictest2790065-21turbostat19:14:5919
278582399388387,1cyclictest0-21swapper/1920:10:0011
278575599386386,0cyclictest2868920-21turbostat20:44:550
278582399385384,1cyclictest2823198-21turbostat19:54:5611
278578599378376,2cyclictest2864356-21turbostat20:35:0119
278582399377374,3cyclictest1224594-21thunderbird23:39:5511
278582399374374,0cyclictest2864356-21turbostat20:39:5611
278582399372370,2cyclictest2846084-21turbostat20:19:5611
278582399372370,2cyclictest2846084-21turbostat20:19:5611
278582399371371,0cyclictest2772496-21kworker/u40:119:14:1811
278582399365364,1cyclictest2993065-21kworker/u40:323:56:0911
278582399365361,2cyclictest2772496-21kworker/u40:120:04:3211
278578999360359,1cyclictest0-21swapper/1020:44:562
278579999357352,1cyclictest0-21swapper/1320:04:315
278579999352352,0cyclictest0-21swapper/1321:14:195
278578599348345,3cyclictest2832352-21turbostat20:00:0119
278576099347347,0cyclictest1488-21snmpd20:51:1412
278576899346341,1cyclictest0-21swapper/420:04:3214
278582399343341,2cyclictest765914-21Renderer00:31:1511
278578599343343,0cyclictest0-21swapper/921:09:5619
278582399342342,0cyclictest0-21swapper/1923:52:4211
278582399342341,1cyclictest0-21swapper/1923:41:1811
278582399342341,1cyclictest0-21swapper/1920:10:0711
278582399342341,1cyclictest0-21swapper/1920:10:0711
278582399342341,1cyclictest0-21swapper/1900:28:0311
278581499342342,0cyclictest0-21swapper/1719:14:189
278576099340340,0cyclictest0-21swapper/220:27:3912
278576099340334,1cyclictest0-21swapper/220:04:3212
278578199338338,0cyclictest764900-40tracker-miner-f20:27:3818
278580699337333,0cyclictest0-21swapper/1520:04:327
278579999337337,0cyclictest0-21swapper/1323:58:495
278578199336336,0cyclictest0-21swapper/823:56:0818
278577999336335,1cyclictest1488-21snmpd19:14:1817
278579999335334,1cyclictest764395-21Xorg19:17:365
278579999334333,1cyclictest764395-21Xorg21:01:255
278579999334332,2cyclictest765914-21Renderer23:54:155
278579999334332,2cyclictest764395-21Xorg00:17:095
278579999332331,1cyclictest3052780-21kworker/u40:000:04:125
278578599331331,0cyclictest2818633-21turbostat19:45:0119
278578599331331,0cyclictest0-21swapper/920:29:5519
278582399327326,1cyclictest0-21swapper/1919:20:0011
278576899327326,1cyclictest765914-21Renderer00:07:0414
278576899325324,1cyclictest765914-21Renderer00:24:2914
278576899325324,1cyclictest765914-21Renderer00:04:1614
278576899325324,1cyclictest2880486-21kworker/u40:121:08:2414
278580699324324,0cyclictest0-21swapper/1500:25:187
278578599322322,0cyclictest764900-40tracker-miner-f19:54:5619
278578199322321,1cyclictest2859851-21kworker/u40:020:36:0618
278578199322317,2cyclictest0-21swapper/820:04:3118
278576099321320,1cyclictest0-21swapper/223:48:5212
278581499320315,2cyclictest0-21swapper/1720:04:329
278580699319317,2cyclictest764395-21Xorg00:18:137
278580699318318,0cyclictest0-21swapper/1523:42:297
278580699318317,1cyclictest2814124-21kworker/u40:320:12:297
278580699318317,1cyclictest2814124-21kworker/u40:320:12:287
278576099318318,0cyclictest0-21swapper/223:52:3812
278580699317316,1cyclictest0-21swapper/1523:51:247
278578199317317,0cyclictest0-21swapper/820:12:2918
278578199317317,0cyclictest0-21swapper/820:12:2818
278576099317316,1cyclictest764395-21Xorg23:42:4312
278580699315314,1cyclictest764395-21Xorg23:59:577
278580699314313,1cyclictest764395-21Xorg00:31:107
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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