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2022-08-11 - 17:19

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 Thu Aug 11, 2022 00:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34307472202183,10sleep50-21swapper/519:07:1311
34309932191174,9sleep100-21swapper/1019:09:272
34158912183171,6sleep80-21swapper/819:05:0714
34307092182176,3sleep90-21swapper/919:06:4515
34307222178159,9sleep40-21swapper/419:06:5610
34307982165146,10sleep30-21swapper/319:07:439
34307962160141,9sleep20-21swapper/219:07:428
34308392149128,10sleep70-21swapper/719:08:0313
34307142148127,11sleep130-21swapper/1319:06:495
34306752143125,9sleep10-21swapper/119:06:211
34306272131102,27sleep140-21swapper/1419:05:466
34306452129110,10sleep120-21swapper/1219:06:004
3430739210846,54sleep150-21swapper/1519:07:077
343071228757,8sleep110-21swapper/1119:06:473
396020840,73pipewire0-21swapper/019:07:360
343063828467,9sleep60-21swapper/619:05:5412
3431564994718,1cyclictest0-21swapper/1019:44:532
3431564994515,30cyclictest0-21swapper/1020:40:442
3431545994314,0cyclictest0-21swapper/523:30:3911
3431545994314,0cyclictest0-21swapper/523:30:3811
3431545994012,28cyclictest0-21swapper/520:58:4211
136699370,0ntpd0-21swapper/923:55:4415
136699370,0ntpd0-21swapper/921:55:4315
136699340,0ntpd0-21swapper/919:55:4415
343157999330,13cyclictest0-21swapper/1421:25:176
136699330,0ntpd0-21swapper/920:55:4315
343155399314,17cyclictest0-21swapper/723:49:4213
3431553993130,1cyclictest0-21swapper/721:13:3113
3431553993015,6cyclictest0-21swapper/723:38:5113
343155399300,1cyclictest0-21swapper/722:45:0913
3431562992928,0cyclictest57150irq/134-i91500:05:1915
3431545992828,0cyclictest57150irq/134-i91519:25:2211
343153099287,21cyclictest0-21swapper/121:55:171
343158399270,26cyclictest1191-21systemd-resolve23:30:267
343158399270,26cyclictest1191-21systemd-resolve23:30:267
343158399270,26cyclictest1191-21systemd-resolve00:14:417
343157999270,6cyclictest0-21swapper/1421:55:176
343155399275,15cyclictest1952373-21VizCompositorTh23:24:3513
3431553992726,1cyclictest0-21swapper/720:58:1013
343158399260,25cyclictest1191-21systemd-resolve23:45:357
343158399260,25cyclictest1191-21systemd-resolve21:34:427
343158399260,25cyclictest1191-21systemd-resolve00:15:467
343155399260,25cyclictest0-21swapper/720:36:4213
3431538992614,11cyclictest1622102-21Isolated00:55:019
343153899260,15cyclictest396420pipewire-pulse21:11:289
343153899260,15cyclictest1621936-21WebExtensions22:09:319
343152699260,1cyclictest1621936-21WebExtensions22:33:190
2424022260,0sleep100-21swapper/1023:59:362
3431576992525,0cyclictest0-21swapper/1319:25:225
343156499250,15cyclictest0-21swapper/1023:32:592
343156499250,15cyclictest0-21swapper/1023:32:582
343155399253,22cyclictest0-21swapper/721:58:5013
3431553992524,1cyclictest0-21swapper/721:24:3913
343152699250,15cyclictest0-21swapper/023:25:310
343152699250,15cyclictest0-21swapper/022:24:070
343152699250,14cyclictest0-21swapper/021:14:250
343152699250,14cyclictest0-21swapper/021:04:170
343152699250,14cyclictest0-21swapper/000:25:520
343152699250,0cyclictest0-21swapper/021:24:390
343152699250,0cyclictest0-21swapper/020:07:020
343152699250,0cyclictest0-21swapper/000:19:550
3431583992413,1cyclictest3871687-21ThreadPoolForeg21:24:117
343158399240,22cyclictest1332-21snmpd23:20:327
343158399240,14cyclictest1621585-21firefox19:38:207
343155399245,9cyclictest0-21swapper/719:22:4213
3431553992423,1cyclictest0-21swapper/722:25:0113
343154599240,15cyclictest0-21swapper/521:23:4411
343153899240,14cyclictest0-21swapper/321:09:359
343153899240,14cyclictest0-21swapper/319:41:259
343153899240,14cyclictest0-21swapper/319:14:379
343153899240,14cyclictest0-21swapper/319:14:379
3431526992414,1cyclictest0-21swapper/020:19:180
3431526992414,10cyclictest13-21ksoftirqd/022:50:120
343152699240,24cyclictest0-21swapper/022:13:580
343152699240,24cyclictest0-21swapper/000:03:260
343152699240,14cyclictest0-21swapper/020:20:210
343152699240,14cyclictest0-21swapper/000:31:030
396420230,0pipewire-pulse0-21swapper/019:49:350
3431583992314,0cyclictest0-21swapper/1523:25:327
3431583992314,0cyclictest0-21swapper/1500:31:037
343157699230,13cyclictest0-21swapper/1300:01:225
3431553992320,1cyclictest0-21swapper/721:29:4113
343154999230,13cyclictest0-21swapper/619:26:5912
3431545992310,11cyclictest0-21swapper/523:37:4811
343152699230,13cyclictest0-21swapper/019:56:460
343152699230,13cyclictest0-21swapper/019:25:050
343158399220,21cyclictest1191-21systemd-resolve21:43:247
343157699220,12cyclictest0-21swapper/1321:26:495
343156899221,21cyclictest0-21swapper/1120:00:263
343156499220,12cyclictest0-21swapper/1021:25:582
343155399224,7cyclictest0-21swapper/700:25:0213
343155399224,10cyclictest0-21swapper/700:23:4813
343155399223,9cyclictest0-21swapper/721:53:2513
3431549992222,0cyclictest0-21swapper/623:32:3812
3431549992222,0cyclictest0-21swapper/623:32:3712
343154999220,22cyclictest0-21swapper/600:20:3512
343154999220,12cyclictest0-21swapper/621:30:2512
343154999220,12cyclictest0-21swapper/621:18:5912
343154999220,12cyclictest0-21swapper/621:18:5912
343154999220,0cyclictest0-21swapper/623:45:4012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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