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2022-08-11 - 17:23

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #8
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 -q done
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 rack0slot8.osadl.org (updated Thu Aug 11, 2022 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1770988996321,17cyclictest19375001kworker/u32:110:05:4213
177098699544,43cyclictest3817942-21Chrome_ChildIOT12:39:4711
1770993995226,11cyclictest3597-21chrome11:39:443
177098599511,25cyclictest0-21swapper/407:31:4610
177099399480,40cyclictest170585-21TaskCon~ller3
1770982994829,8cyclictest2303735-21ThreadPoolForeg12:39:479
177100099470,46cyclictest1779071-21meminfo07:15:227
177098299478,28cyclictest9717-21Compositor08:54:559
177098199473,15cyclictest1798847-21ThreadPoolForeg07:39:368
177098699461,5cyclictest0-21swapper/510:39:4311
1770981994412,30cyclictest291irq_work/212:04:538
177098699433,17cyclictest3597-21chrome09:39:4111
1770981994210,25cyclictest0-21swapper/210:53:488
177099699410,1cyclictest1987702-21chrome11:15:244
1770993994110,25cyclictest0-21swapper/1111:18:003
1770993994110,25cyclictest0-21swapper/1109:06:323
177099299410,16cyclictest1987702-21chrome11:45:062
1770986994113,28cyclictest2170194-21kworker/u32:012:20:2611
177098699410,5cyclictest0-21swapper/511:39:4411
177098599410,1cyclictest1987702-21chrome10:45:4910
1770982994110,25cyclictest0-21swapper/307:24:199
177098199419,28cyclictest1987702-21chrome09:10:598
177100099409,26cyclictest0-21swapper/1511:49:407
1771000994014,26cyclictest1201irq_work/1508:28:127
177099999409,26cyclictest0-21swapper/1410:30:366
1770999994014,26cyclictest1131irq_work/1409:34:166
177099899409,25cyclictest0-21swapper/1309:12:005
1770998994014,25cyclictest1061irq_work/1309:17:295
177099699409,25cyclictest0-21swapper/1210:55:254
177099699400,15cyclictest0-21swapper/1211:45:574
1770989994010,24cyclictest0-21swapper/812:39:2814
177098799409,26cyclictest0-21swapper/607:18:0812
1770987994014,26cyclictest571irq_work/607:28:2012
177098699409,31cyclictest0-21swapper/512:06:2311
177098699409,25cyclictest0-21swapper/509:24:5911
177098699403,4cyclictest3817918-21Chrome_IOThread07:39:3711
177098699403,13cyclictest3088-21chrome08:39:3711
1770986994014,26cyclictest501irq_work/509:12:2211
1770986994010,25cyclictest0-21swapper/509:33:2411
1770985994037,3cyclictest0-21swapper/408:33:0010
1770982994014,26cyclictest361irq_work/310:09:429
1770981994014,26cyclictest291irq_work/210:57:048
177100099398,26cyclictest0-21swapper/1507:46:127
1771000993913,25cyclictest1201irq_work/1510:42:127
177099999398,26cyclictest0-21swapper/1410:53:256
177099999390,14cyclictest0-21swapper/1407:29:196
1770998993938,0cyclictest0-21swapper/1309:30:275
1770998993913,26cyclictest1061irq_work/1308:28:245
177099899391,24cyclictest3092-21Chrome_ChildIOT08:39:375
177099399399,24cyclictest0-21swapper/1107:33:203
177099399398,25cyclictest0-21swapper/1110:23:453
177098899399,25cyclictest0-21swapper/708:47:2313
1770988993913,26cyclictest641irq_work/712:30:2813
1770988993913,25cyclictest641irq_work/710:52:1613
177098799398,25cyclictest0-21swapper/612:08:4412
177098799390,14cyclictest0-21swapper/609:59:5812
177098799390,14cyclictest0-21swapper/609:59:5712
1770985993914,25cyclictest18663381kworker/u32:009:46:5910
177098299398,25cyclictest0-21swapper/307:32:189
177098199393,13cyclictest3088-21chrome10:39:408
1770999993813,25cyclictest1131irq_work/1412:03:556
1770999993813,1cyclictest1131irq_work/1407:38:396
1770999993812,26cyclictest1131irq_work/1408:46:196
1770998993814,16cyclictest2303718-21ThreadPoolForeg12:39:475
1770996993812,26cyclictest991irq_work/1212:03:344
177099399388,25cyclictest0-21swapper/1111:40:143
177099399387,25cyclictest0-21swapper/1109:48:423
1770992993814,24cyclictest851irq_work/1008:15:032
1770992993814,1cyclictest851irq_work/1012:33:232
1770992993810,26cyclictest851irq_work/1007:57:542
1770989993814,24cyclictest711irq_work/811:30:5714
177098999380,14cyclictest0-21swapper/812:04:4614
1770988993812,26cyclictest641irq_work/711:43:3213
1770988993812,26cyclictest641irq_work/710:56:2213
1770988993812,26cyclictest641irq_work/709:55:0213
1770988993812,26cyclictest641irq_work/709:55:0213
1770986993812,26cyclictest501irq_work/510:19:3611
1770986993812,26cyclictest501irq_work/508:04:5911
177098599387,26cyclictest0-21swapper/409:44:0910
177098299387,25cyclictest0-21swapper/308:28:329
1770982993812,25cyclictest361irq_work/311:15:239
1771000993711,26cyclictest1866338-21kworker/u32:009:15:597
177099999376,26cyclictest0-21swapper/1410:21:136
1770999993711,26cyclictest1131irq_work/1410:15:466
1770998993713,1cyclictest1061irq_work/1311:28:005
177099399376,25cyclictest0-21swapper/1111:14:253
177099399376,25cyclictest0-21swapper/1108:53:033
1770993993712,25cyclictest921irq_work/1110:32:123
1770992993736,0cyclictest0-21swapper/1008:58:032
1770990993713,24cyclictest781irq_work/910:59:4015
1770989993713,24cyclictest785477-21kworker/u32:507:17:3214
1770989993713,24cyclictest711irq_work/810:17:1014
1770987993712,25cyclictest571irq_work/611:11:4012
1770987993712,25cyclictest571irq_work/609:13:4512
177098699376,25cyclictest0-21swapper/510:54:4311
1770986993712,25cyclictest501irq_work/507:50:0611
1770986993710,27cyclictest0-21swapper/509:59:4611
1770986993710,27cyclictest0-21swapper/509:59:4511
1770986993710,25cyclictest501irq_work/512:18:2511
1770985993712,24cyclictest431irq_work/411:35:4710
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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