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2023-01-29 - 17:38

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #2

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 5.15.49-rt47 (Profile)

Latency plot of shadow in rack #0, slot #2
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 rack0slot2s.osadl.org (updated Sun Jan 29, 2023 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21199072253216,12sleep70-21swapper/707:08:257
21200752246226,13sleep80-21swapper/807:09:468
21197032244224,13sleep90-21swapper/907:06:479
21200622240224,10sleep00-21swapper/007:09:380
21197302240222,12sleep20-21swapper/207:07:002
21200252239222,11sleep30-21swapper/307:09:223
21196892239221,12sleep10-21swapper/107:06:391
21199252237218,13sleep50-21swapper/507:08:345
21200542235215,13sleep60-21swapper/607:09:356
21200682234216,12sleep40-21swapper/407:09:434
2120373992222,0cyclictest0-21swapper/409:17:594
212039299200,20cyclictest0-21swapper/907:11:079
212039099200,20cyclictest0-21swapper/807:10:198
2120385992020,0cyclictest0-21swapper/709:18:007
2120392991919,0cyclictest0-21swapper/912:26:289
2120392991919,0cyclictest0-21swapper/909:00:229
2120392991919,0cyclictest0-21swapper/908:50:229
2120392991919,0cyclictest0-21swapper/908:10:209
212039299190,19cyclictest0-21swapper/907:35:239
212039299190,0cyclictest0-21swapper/909:17:569
212039299190,0cyclictest0-21swapper/907:30:239
2120390991919,0cyclictest0-21swapper/811:35:228
2120390991919,0cyclictest0-21swapper/808:10:218
212039099190,19cyclictest0-21swapper/811:45:208
212039099190,19cyclictest0-21swapper/807:30:228
2120373991918,1cyclictest2234093-21ntpq10:20:204
212037399190,1cyclictest2284073-21ntpq11:45:224
212037399190,1cyclictest2278178-21ntpq11:35:224
212037399190,1cyclictest2184172-21ntpq08:55:254
212036499190,1cyclictest2187139-21ntpq09:00:222
212035799190,1cyclictest2310442-21ntpq12:30:200
2120390991818,0cyclictest0-21swapper/812:30:208
2120390991818,0cyclictest0-21swapper/812:26:308
2120390991818,0cyclictest0-21swapper/808:20:208
2120390991818,0cyclictest0-21swapper/807:35:238
212039099180,18cyclictest0-21swapper/809:17:568
212038599180,18cyclictest0-21swapper/707:10:297
212038199180,0cyclictest0-21swapper/608:45:216
212038199180,0cyclictest0-21swapper/608:15:226
212038199180,0cyclictest0-21swapper/607:10:296
2120376991818,0cyclictest0-21swapper/508:05:215
212037699180,18cyclictest0-21swapper/509:00:205
212037699180,0cyclictest0-21swapper/507:10:595
212037399180,18cyclictest0-21swapper/407:10:294
212037399180,0cyclictest0-21swapper/409:00:224
2120368991817,1cyclictest2207734-21ntpq09:35:203
212036899180,18cyclictest0-21swapper/308:55:263
212036899180,18cyclictest0-21swapper/308:15:223
212036899180,18cyclictest0-21swapper/307:11:013
212036499180,18cyclictest0-21swapper/207:10:292
212035799180,18cyclictest803-21in:imjournal07:10:010
2120392991717,0cyclictest0-21swapper/911:45:199
2120392991717,0cyclictest0-21swapper/908:20:219
2120390991717,0cyclictest0-21swapper/811:15:208
2120390991717,0cyclictest0-21swapper/810:10:208
2120390991717,0cyclictest0-21swapper/809:35:208
2120390991717,0cyclictest0-21swapper/809:30:248
2120390991717,0cyclictest0-21swapper/809:00:228
2120385991717,0cyclictest2129777-21kworker/7:211:46:367
2120385991717,0cyclictest2129777-21kworker/7:209:48:337
2120385991717,0cyclictest2129777-21kworker/7:208:12:017
2120385991717,0cyclictest0-21swapper/712:26:317
2120385991717,0cyclictest0-21swapper/710:20:217
2120385991717,0cyclictest0-21swapper/709:40:207
2120385991717,0cyclictest0-21swapper/708:55:247
2120385991717,0cyclictest0-21swapper/708:20:217
2120381991717,0cyclictest0-21swapper/612:25:266
2120381991717,0cyclictest0-21swapper/608:55:256
2120376991717,0cyclictest0-21swapper/511:45:205
2120376991717,0cyclictest0-21swapper/509:30:245
2120376991717,0cyclictest0-21swapper/509:17:595
2120376991717,0cyclictest0-21swapper/507:30:235
212037699170,17cyclictest0-21swapper/508:10:215
212037699170,0cyclictest0-21swapper/508:20:185
212037699170,0cyclictest0-21swapper/507:20:185
2120373991717,0cyclictest0-21swapper/409:40:214
2120373991715,1cyclictest21136611kworker/u20:107:40:584
2120368991717,0cyclictest0-21swapper/310:55:273
2120368991717,0cyclictest0-21swapper/310:25:253
2120368991717,0cyclictest0-21swapper/310:20:213
2120364991717,0cyclictest2308312-40dnf12:26:302
2120364991717,0cyclictest0-21swapper/209:40:192
212036499170,17cyclictest0-21swapper/210:50:202
212036499170,17cyclictest0-21swapper/207:35:252
212036299170,17cyclictest0-21swapper/109:45:221
212036299170,17cyclictest0-21swapper/107:10:201
2120357991716,1cyclictest2187098-21ntpq09:00:210
2120357991716,1cyclictest2154852-21ntpq08:05:210
2120357991716,1cyclictest2137226-21ntpq07:35:230
212035799170,17cyclictest2213568-21ntpq09:45:220
212035799170,0cyclictest0-21swapper/009:17:560
2120392991616,0cyclictest0-21swapper/909:45:229
2120392991615,1cyclictest620912-21snmpd10:58:009
2120392991615,1cyclictest620912-21snmpd09:51:019
2120392991615,0cyclictest0-21swapper/909:35:209
2120390991615,1cyclictest620912-21snmpd10:17:418
2120390991615,1cyclictest620912-21snmpd09:13:008
2120390991615,1cyclictest620912-21snmpd07:56:098
2120385991616,0cyclictest0-21swapper/707:35:247
2120385991615,1cyclictest620912-21snmpd12:17:537
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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