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2025-04-23 - 16:04
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 376 highest latencies:
System rackcslot4.osadl.org (updated Wed Apr 23, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6675072303261,28sleep10-21swapper/119:06:441
6677662277209,54sleep00-21swapper/019:09:340
6923132830,1chrt691522-21/usr/sbin/munin20:10:251
66794999590,5cyclictest805743-21ssh23:19:261
66794999560,6cyclictest782579-21ssh22:45:461
66794999543,32cyclictest737473-21apt-get21:40:131
66794999542,34cyclictest778362-21apt-get22:40:181
125899530,4rtkit-daemon1257-21rtkit-daemon22:15:450
125899530,3rtkit-daemon1257-21rtkit-daemon21:36:181
66794999523,30cyclictest677459-21apt-get19:35:151
125899520,4rtkit-daemon1257-21rtkit-daemon23:46:320
66794999517,28cyclictest715451-21diskmemload22:00:411
125899510,4rtkit-daemon1257-21rtkit-daemon22:37:460
66794999502,6cyclictest764781-21apt-get22:20:131
125899500,4rtkit-daemon1257-21rtkit-daemon21:19:101
66794999492,5cyclictest705902-21apt-get20:45:151
667949994913,20cyclictest801703-21sh23:13:271
667949994912,20cyclictest840854-21cat00:10:141
66794999480,10cyclictest777237-21ssh22:38:101
7651522470,3sleep0161rcuc/022:20:190
66794999473,22cyclictest715732-21apt-get21:10:131
66794999471,8cyclictest835969-21ssh00:01:551
66794999470,8cyclictest770256-21ssh22:29:161
66794999461,6cyclictest715451-21diskmemload23:05:591
66794999461,5cyclictest847616-21apt-get00:20:151
66794999461,5cyclictest715451-21diskmemload23:36:021
66794999460,9cyclictest846270-21ssh00:17:421
66794999460,8cyclictest852941-21ssh00:28:351
66794999457,26cyclictest0-21swapper/122:55:271
66794999452,6cyclictest687647-21apt-get20:00:161
66794999451,3cyclictest770905-21/usr/sbin/munin22:30:301
66794999450,8cyclictest758636-21ssh22:10:291
66794999450,6cyclictest788048-21ssh22:54:201
66794999441,6cyclictest715451-21diskmemload21:50:111
66794999441,4cyclictest855588-21ssh00:31:051
66794999441,4cyclictest715451-21diskmemload21:49:581
66794999441,4cyclictest707851-21apt-get20:50:161
66794999433,2cyclictest704171-21diskstats20:40:201
66794999431,8cyclictest859255-21ssh00:36:061
66794999431,8cyclictest668268-21df19:10:181
66794999431,5cyclictest715451-21diskmemload23:24:321
66794999431,5cyclictest683196-21python319:50:021
66794999431,5cyclictest683196-21python319:50:021
66794999431,4cyclictest723576-21apt-get21:20:151
66794999422,4cyclictest819881-21apt-get23:40:141
66794999422,4cyclictest747390-21apt-get21:55:141
66794999421,6cyclictest715451-21diskmemload21:32:221
66794999421,5cyclictest679424-21apt-get19:40:121
66794999421,4cyclictest761045-21apt-get22:15:151
66794999421,2cyclictest794236-21ssh23:00:521
66794999421,10cyclictest672564-21apt-get19:20:131
66794999420,8cyclictest837620-21ssh00:05:041
66794999420,6cyclictest829544-21sh23:53:571
66794999411,4cyclictest711763-21apt-get21:00:131
66794999411,4cyclictest681371-21apt-get19:45:121
66794999410,8cyclictest830573-21tune2fs23:55:171
66794999410,4cyclictest697999-21memory20:25:201
66794999410,3cyclictest701087-21apt-get20:35:061
66794999403,3cyclictest0-21swapper/122:06:531
66794999401,7cyclictest729478-21munin-run21:30:011
66794999401,3cyclictest670589-21apt-get19:15:131
66794999400,5cyclictest812443-21apt-get23:30:101
66794999391,7cyclictest675480-21/usr/sbin/munin19:30:081
66794999391,5cyclictest715451-21diskmemload23:49:251
66794999390,6cyclictest811092-21ssh23:27:411
66794999390,6cyclictest700124-21ntp_states20:30:231
66794999381,3cyclictest689903-21perl20:05:171
66794999380,7cyclictest686548-21ps19:55:231
66794999380,3cyclictest709798-21apt-get20:55:131
125899380,3rtkit-daemon0-21swapper/023:33:550
125899370,3rtkit-daemon0-21swapper/021:57:370
125899370,3rtkit-daemon0-21swapper/000:21:040
125899360,4rtkit-daemon1257-21rtkit-daemon23:09:110
125899350,4rtkit-daemon1257-21rtkit-daemon22:49:240
125899350,4rtkit-daemon1257-21rtkit-daemon20:45:430
125899350,4rtkit-daemon0-21swapper/100:34:560
125899350,3rtkit-daemon0-21swapper/123:02:130
66794999340,4cyclictest713707-21apt-get21:05:141
125899340,4rtkit-daemon1257-21rtkit-daemon23:12:450
125899340,4rtkit-daemon1257-21rtkit-daemon22:43:240
125899340,4rtkit-daemon1257-21rtkit-daemon20:40:320
125899340,3rtkit-daemon1257-21rtkit-daemon21:54:360
125899340,3rtkit-daemon0-21swapper/123:17:510
125899340,3rtkit-daemon0-21swapper/121:43:020
125899340,3rtkit-daemon0-21swapper/121:30:130
66794999333,3cyclictest695922-21sshd20:20:201
66794999330,5cyclictest674639-21sort19:25:011
125899330,4rtkit-daemon1257-21rtkit-daemon23:37:220
125899330,4rtkit-daemon1257-21rtkit-daemon22:34:290
125899330,3rtkit-daemon0-21swapper/121:14:280
125899330,3rtkit-daemon0-21swapper/120:04:000
125899320,3rtkit-daemon1257-21rtkit-daemon20:50:420
125899320,3rtkit-daemon0-21swapper/121:22:590
125899320,18rtkit-daemon63750irq/132-enp2s023:28:410
667949993110,18cyclictest693835-21gltestperf20:15:201
125899310,4rtkit-daemon1257-21rtkit-daemon20:36:300
125899310,3rtkit-daemon1257-21rtkit-daemon20:59:140
125899310,3rtkit-daemon0-21swapper/119:23:030
125899300,3rtkit-daemon0-21swapper/120:09:530
125899280,3rtkit-daemon0-21swapper/119:18:500
125899280,1rtkit-daemon1257-21rtkit-daemon23:44:390
125899270,1rtkit-daemon1257-21rtkit-daemon22:06:330
66794599262,18cyclictest833964-21apt-get00:00:140
125899260,4rtkit-daemon1257-21rtkit-daemon00:39:500
125899260,22rtkit-daemon715451-21diskmemload00:17:100
125899260,1rtkit-daemon1257-21rtkit-daemon20:17:270
667945992512,7cyclictest63750irq/132-enp2s023:20:160
125899250,20rtkit-daemon667937-21cyclictest19:14:040
125899250,1rtkit-daemon1257-21rtkit-daemon22:10:010
66794599249,5cyclictest0-21swapper/000:12:340
125899240,4rtkit-daemon1257-21rtkit-daemon21:26:130
125899240,15rtkit-daemon0-21swapper/022:50:050
66794599232,15cyclictest830241-21apt-get23:55:130
66794599232,14cyclictest677459-21apt-get19:35:180
125899230,14rtkit-daemon0-21swapper/000:28:260
66794599227,5cyclictest0-21swapper/021:39:180
66794599222,14cyclictest751200-21apt-get22:00:130
66794599222,14cyclictest695458-21apt-get20:20:170
66794599222,14cyclictest675500-21apt-get19:30:100
66794599221,15cyclictest719685-21apt-get21:15:150
667945992210,7cyclictest63750irq/132-enp2s023:50:110
667945992210,7cyclictest63750irq/132-enp2s022:55:120
66794599202,14cyclictest683679-40apt-check19:50:110
66794599202,14cyclictest683679-40apt-check19:50:110
667945992011,5cyclictest715451-21diskmemload00:06:510
125899200,12rtkit-daemon0-21swapper/022:29:480
667945991915,2cyclictest674785-21apt-config19:25:020
667945991912,5cyclictest682053-21tail19:45:200
667945991911,6cyclictest715428-21seq21:09:540
667945991911,6cyclictest699183-21grep20:30:000
667945991911,6cyclictest680694-21grep19:40:240
66794599190,8cyclictest741078-21ssh21:45:100
66794599190,7cyclictest687414-21sh20:00:000
66794599180,8cyclictest700444-21cat20:30:260
66794599179,6cyclictest713275-21seq21:02:390
66794599170,6cyclictest0-21swapper/020:15:010
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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