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2022-06-30 - 22:33

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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack0slot8.osadl.org (updated Thu Jun 30, 2022 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175191899434433,1cyclictest1911245-21kworker/15:209:36:377
175190699427423,4cyclictest1922401-21turbostat09:35:0013
1751905994260,426cyclictest0-21swapper/612:16:1212
1751905994260,0cyclictest0-21swapper/610:03:2812
175190299426425,1cyclictest26650irq/127-xhci_hc10:58:3410
1751918994250,425cyclictest0-21swapper/1509:59:597
175191099425424,1cyclictest2140053-21kworker/u32:111:37:5115
175189699425422,2cyclictest2151511-21kworker/0:112:28:140
175191899424423,1cyclictest0-21swapper/1508:15:417
175191899424423,1cyclictest0-21swapper/1508:15:417
175190699424420,2cyclictest2054635-21turbostat10:40:0013
175190299424423,1cyclictest26650irq/127-xhci_hc09:44:3210
175191099423422,1cyclictest2079688-21kworker/u32:211:54:3115
175190899423421,2cyclictest0-21swapper/809:49:5414
175190599423422,1cyclictest2079688-21kworker/u32:212:02:4112
175190599423421,2cyclictest2036223-21kworker/u32:011:09:3612
175191099422422,0cyclictest0-21swapper/909:30:1815
175190599422422,0cyclictest0-21swapper/610:07:5012
175190599422421,1cyclictest2101962-21kworker/u32:411:16:4712
175190699421419,2cyclictest2247635-21turbostat12:14:5913
175190599421420,1cyclictest25050irq/126-ahci[0011:35:5012
175191099420420,0cyclictest0-21swapper/912:16:1315
175191099420418,1cyclictest2101962-21kworker/u32:411:33:2415
175190699420419,1cyclictest2024677-21turbostat10:29:5413
175190699420418,2cyclictest2074907-21turbostat10:50:0113
175190699420418,2cyclictest2074907-21turbostat10:50:0113
175190599420419,1cyclictest25050irq/126-ahci[0009:35:4212
175190599420419,1cyclictest25050irq/126-ahci[0008:33:0212
175190399420420,0cyclictest0-21swapper/512:04:5511
175189699420420,0cyclictest2045009-21turbostat10:39:550
175191899419419,0cyclictest0-21swapper/1509:24:017
175191899419418,1cyclictest0-21swapper/1510:05:007
175190599419419,0cyclictest0-21swapper/610:26:1412
175191899418418,0cyclictest0-21swapper/1511:30:017
175191499418417,1cyclictest0-21swapper/1210:58:344
175191899417417,0cyclictest0-21swapper/1512:23:517
175191099417416,1cyclictest2036223-21kworker/u32:011:27:3915
175191499415414,1cyclictest0-21swapper/1209:44:324
175190599414414,0cyclictest0-21swapper/609:41:3112
175191899413412,1cyclictest1911648-21awk09:30:007
175189699413412,1cyclictest1797725-21kworker/u32:008:23:330
175189699413412,1cyclictest1797725-21kworker/u32:008:23:330
175191899412411,1cyclictest2045013-21munin-run10:35:007
175191299411411,0cyclictest0-21swapper/1012:19:552
175191099409408,1cyclictest2282277-21kworker/u32:212:35:2315
175190899407407,0cyclictest0-21swapper/811:45:4814
175190599407401,5cyclictest0-21swapper/609:35:0012
175191899406400,2cyclictest0-21swapper/1511:15:007
175191799406405,1cyclictest1952843-21turbostat09:54:546
175191099405404,1cyclictest1797725-21kworker/u32:009:35:4115
175191099404404,0cyclictest0-21swapper/908:22:2915
175191099404404,0cyclictest0-21swapper/908:22:2815
175191899403401,2cyclictest0-21swapper/1509:55:007
175190699402400,2cyclictest1994446-21turbostat10:09:5913
175190699401400,1cyclictest1817864-21turbostat08:15:0113
175191899400398,2cyclictest0-21swapper/1509:34:597
175191899399395,2cyclictest0-21swapper/1510:40:007
175190699398396,2cyclictest2207359-21turbostat11:55:0013
175190099397397,0cyclictest2237581-21turbostat12:14:558
175191899396394,2cyclictest0-21swapper/1512:15:007
175191899396394,0cyclictest0-21swapper/1510:29:557
175191799396396,0cyclictest0-21swapper/1408:59:566
175190699396395,1cyclictest2227623-21turbostat12:05:0013
175191899395393,2cyclictest0-21swapper/1510:50:017
175191899395393,2cyclictest0-21swapper/1510:50:017
175190899395395,0cyclictest0-21swapper/811:33:2414
175190699395393,1cyclictest1952843-21turbostat09:50:0013
175190899393386,3cyclictest55885alsa-sink-USB13:15:4914
175189999393392,1cyclictest21250irq/9-acpi11:45:491
175189699391391,0cyclictest1974471-21turbostat10:04:550
175191099389387,2cyclictest0-21swapper/910:14:5415
175190899389389,0cyclictest0-21swapper/811:10:2814
175190899389389,0cyclictest0-21swapper/808:45:4614
175191299388387,1cyclictest1420-21snmpd08:12:142
175190899387387,0cyclictest0-21swapper/811:59:4214
175190899387387,0cyclictest0-21swapper/810:29:3914
175189699387387,0cyclictest0-21swapper/009:44:550
175191399386385,1cyclictest2074907-21turbostat10:54:563
175190899386385,1cyclictest2282277-21kworker/u32:212:39:4914
175190899386385,1cyclictest0-21swapper/810:24:5514
175190199385385,0cyclictest0-21swapper/310:54:569
175190899384383,1cyclictest1872437-21kworker/u32:109:16:3514
175190899384383,1cyclictest0-21swapper/808:29:5614
175190899383382,1cyclictest1874558-21kworker/u32:410:53:3614
175190899383382,1cyclictest1874558-21kworker/u32:409:21:5014
175190899383381,2cyclictest1874558-21kworker/u32:409:29:2914
175190899382382,0cyclictest0-21swapper/812:29:0914
175190899382382,0cyclictest0-21swapper/809:39:3114
175190899381381,0cyclictest0-21swapper/812:32:0714
175190899381381,0cyclictest0-21swapper/812:19:1314
175190899381381,0cyclictest0-21swapper/812:03:4514
175190899381381,0cyclictest0-21swapper/811:16:3914
175190899381381,0cyclictest0-21swapper/809:09:5214
175190899381381,0cyclictest0-21swapper/808:32:1014
175190899381381,0cyclictest0-21swapper/808:22:2914
175190899381381,0cyclictest0-21swapper/808:22:2814
175190899381380,1cyclictest1808714-21kworker/u32:308:54:2914
175190899380380,0cyclictest0-21swapper/812:23:5114
175190699380377,2cyclictest2105389-21turbostat11:05:0013
175191399379377,2cyclictest0-21swapper/1108:14:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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