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2023-03-21 - 06:11

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.49-rt47 (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 Tue Mar 21, 2023 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16306752201183,9sleep40-21swapper/419:06:3810
16306892197180,8sleep130-21swapper/1319:06:485
16305702190171,10sleep120-21swapper/1219:06:154
16307782189166,12sleep80-21swapper/819:07:1514
16308822178156,11sleep10-21swapper/119:08:111
15796822173154,10sleep100-21swapper/1019:05:092
16308882172152,10sleep70-21swapper/719:08:1813
15796812167149,10sleep90-21swapper/919:05:0815
16309722161142,10sleep110-21swapper/1119:09:113
16309092159140,10sleep60-21swapper/619:08:3312
16305602156137,10sleep30-21swapper/319:06:059
16305732140111,28sleep150-21swapper/1519:06:187
16304832133113,11sleep50-21swapper/519:05:5111
16306952121117,1sleep20-21swapper/219:06:528
1630572210840,58sleep140-21swapper/1419:06:176
769720890,71pipewire0-21swapper/019:07:300
132299630,0ntpd0-21swapper/1121:51:133
5870202530,0sleep110-21swapper/1100:05:483
32088962450,0sleep130-21swapper/1321:35:465
1631447994343,0cyclictest0-21swapper/722:41:5813
1631447994324,0cyclictest0-21swapper/722:04:3913
132299430,1ntpd95-21ksoftirqd/1123:11:333
1631438994242,0cyclictest0-21swapper/022:23:460
1631449994141,0cyclictest0-21swapper/922:10:3315
1631449994141,0cyclictest0-21swapper/922:10:3215
1631447994141,0cyclictest0-21swapper/721:57:4913
1631446994140,0cyclictest0-21swapper/623:11:2412
1631455994040,0cyclictest0-21swapper/1322:21:245
1631455994040,0cyclictest0-21swapper/1322:04:405
163143999402,4cyclictest769220pipewire-pulse23:10:361
132299400,2ntpd95-21ksoftirqd/1121:55:153
132299400,0ntpd39-21ksoftirqd/322:04:129
163145899390,38cyclictest2054777-21chrome21:45:257
163145899390,38cyclictest1158-21systemd-resolve20:11:377
163144999397,31cyclictest2170463-1kworker/u33:121:36:0815
1631447993939,0cyclictest0-21swapper/720:11:3613
132299390,4ntpd95-21ksoftirqd/1122:02:053
163145899386,32cyclictest3260273-21/usr/sbin/httpd22:33:597
1631455993838,0cyclictest0-21swapper/1322:41:575
1631447993812,26cyclictest56650irq/134-i91523:41:5613
1631446993838,0cyclictest0-21swapper/621:49:0012
1631442993838,0cyclictest2428411-21kworker/3:021:41:209
1631440993838,0cyclictest0-21swapper/222:01:558
1631440993820,17cyclictest0-21swapper/221:54:468
37364342370,0sleep15136-21kcompactd022:30:017
1631456993710,1cyclictest2049838-21thunderbird20:26:056
1631454993737,0cyclictest0-21swapper/1222:28:274
1631447993711,25cyclictest56650irq/134-i91522:28:0913
1631440993737,0cyclictest0-21swapper/222:26:408
1631440993712,25cyclictest3210495-21kworker/u32:021:58:588
163143999370,3cyclictest769720pipewire22:11:161
163143999370,3cyclictest769720pipewire22:11:151
132299370,0ntpd95-21ksoftirqd/1121:36:483
132299370,0ntpd0-21swapper/1122:51:133
132299370,0ntpd0-21swapper/1120:51:133
132299370,0ntpd0-21swapper/1119:51:133
1631456993634,1cyclictest617134-21TaskCon~ller6
1631454993610,26cyclictest4048176-21kworker/u32:023:03:074
1631453993611,25cyclictest1750389-21kworker/u32:319:57:523
132299360,3ntpd39-21ksoftirqd/319:50:429
132299360,1ntpd95-21ksoftirqd/1123:37:553
769720350,0pipewire0-21swapper/1222:12:464
769720350,0pipewire0-21swapper/1222:12:464
163145899352,32cyclictest2193187-21MuninnPageCache21:08:237
163145899350,35cyclictest7213-21Xorg21:51:547
163145899350,35cyclictest1302-21snmpd23:11:257
163145899350,34cyclictest367332-21x0vncserver22:24:137
163145899350,10cyclictest0-21swapper/1523:41:567
1631456993533,1cyclictest7213-21Xorg21:46:106
1631456993533,1cyclictest1974119-21WRWorkerLP#322:01:346
1631455993535,0cyclictest0-21swapper/1322:08:535
1631455993535,0cyclictest0-21swapper/1322:08:525
1631453993535,0cyclictest0-21swapper/1119:27:463
163144899351,12cyclictest769720pipewire23:12:1514
163144799358,26cyclictest0-21swapper/719:29:2713
163144699350,13cyclictest0-21swapper/622:44:2212
1631442993535,0cyclictest2428411-21kworker/3:022:36:009
163144099359,26cyclictest3210495-21kworker/u32:022:25:008
1631439993535,0cyclictest0-21swapper/123:40:251
132299350,2ntpd95-21ksoftirqd/1121:45:513
132299350,24ntpd95-21ksoftirqd/1121:42:353
163145899340,33cyclictest1974111-21Renderer19:29:267
163145699340,34cyclictest2054777-21chrome23:27:036
163145699340,34cyclictest2054777-21chrome23:27:036
163144999341,9cyclictest769220pipewire-pulse21:43:3815
163144699344,0cyclictest0-21swapper/622:01:1712
163144399349,25cyclictest2690154-21kworker/u32:221:04:3510
1631442993434,0cyclictest4124608-21kworker/3:223:20:299
1631442993433,1cyclictest2428411-21kworker/3:022:16:399
1631442993433,1cyclictest2428411-21kworker/3:022:16:399
1631440993434,0cyclictest0-21swapper/221:20:438
163143999342,2cyclictest769220pipewire-pulse22:28:261
132299340,2ntpd95-21ksoftirqd/1122:31:293
132299340,1ntpd95-21ksoftirqd/1122:10:523
132299340,1ntpd95-21ksoftirqd/1122:10:523
132299340,1ntpd39-21ksoftirqd/322:05:509
132299340,1ntpd39-21ksoftirqd/322:05:499
132299340,0ntpd0-21swapper/1122:45:433
1631458993333,0cyclictest0-21swapper/1522:01:347
1631458993331,2cyclictest7553-21gnome-shell21:41:487
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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