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2025-10-26 - 06:36
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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 highest latencies:
System rackcslot4.osadl.org (updated Sun Oct 26, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22482832248207,27sleep00-21swapper/019:08:120
22484012246204,28sleep10-21swapper/119:09:271
23252402650,4sleep10-21swapper/121:46:441
23462362640,5sleep00-21swapper/022:15:210
125899600,4rtkit-daemon1257-21rtkit-daemon20:00:161
24393292570,4sleep10-21swapper/100:23:271
125899530,4rtkit-daemon1257-21rtkit-daemon23:21:331
125899530,4rtkit-daemon1257-21rtkit-daemon23:05:480
125899520,4rtkit-daemon1257-21rtkit-daemon21:29:351
125899510,3rtkit-daemon1257-21rtkit-daemon22:46:561
125899500,12rtkit-daemon1257-21rtkit-daemon21:21:481
125899490,3rtkit-daemon1257-21rtkit-daemon22:43:301
24506602460,2sleep12450662-21ssh00:39:241
24043502460,4sleep10-21swapper/123:35:081
125899460,4rtkit-daemon1257-21rtkit-daemon19:38:580
125899420,6rtkit-daemon1257-21rtkit-daemon00:25:161
125899410,6rtkit-daemon352-21systemd-udevd22:57:201
125899390,3rtkit-daemon1257-21rtkit-daemon22:00:321
125899380,4rtkit-daemon2385132-21sendmail-mta23:07:501
125899370,5rtkit-daemon1257-21rtkit-daemon22:22:000
125899370,5rtkit-daemon1257-21rtkit-daemon20:49:081
125899370,3rtkit-daemon1257-21rtkit-daemon20:15:171
125899360,5rtkit-daemon1257-21rtkit-daemon21:01:561
125899360,5rtkit-daemon1257-21rtkit-daemon00:05:410
125899360,4rtkit-daemon1257-21rtkit-daemon23:26:131
125899360,4rtkit-daemon1257-21rtkit-daemon20:54:481
125899360,3rtkit-daemon0-21swapper/123:36:570
125899360,3rtkit-daemon0-21swapper/119:14:561
125899360,3rtkit-daemon0-21swapper/119:14:561
125899360,3rtkit-daemon0-21swapper/100:19:411
125899360,3rtkit-daemon0-21swapper/021:50:021
125899360,3rtkit-daemon0-21swapper/020:58:260
125899360,3rtkit-daemon0-21swapper/020:56:541
125899360,3rtkit-daemon0-21swapper/020:41:060
125899360,3rtkit-daemon0-21swapper/000:06:571
2248587993520,2cyclictest2359282-21rm22:32:251
125899350,5rtkit-daemon2395472-21ssh23:21:470
125899350,4rtkit-daemon1257-21rtkit-daemon23:55:571
125899350,4rtkit-daemon1257-21rtkit-daemon23:13:350
125899350,4rtkit-daemon1257-21rtkit-daemon22:54:211
125899350,4rtkit-daemon1257-21rtkit-daemon21:32:061
125899350,4rtkit-daemon1257-21rtkit-daemon19:31:171
125899350,3rtkit-daemon0-21swapper/122:13:470
125899340,4rtkit-daemon1257-21rtkit-daemon21:35:160
125899340,4rtkit-daemon1257-21rtkit-daemon21:20:010
125899340,4rtkit-daemon1257-21rtkit-daemon21:14:410
125899340,3rtkit-daemon0-21swapper/123:54:301
125899340,3rtkit-daemon0-21swapper/100:22:170
125899340,3rtkit-daemon0-21swapper/020:41:181
125899340,3rtkit-daemon0-21swapper/020:35:211
125899330,4rtkit-daemon1257-21rtkit-daemon21:28:100
125899330,3rtkit-daemon0-21swapper/123:41:030
125899330,3rtkit-daemon0-21swapper/021:19:561
2248587993215,10cyclictest2253215-21apt-get19:20:141
125899320,5rtkit-daemon2444800-21ssh00:30:240
125899320,4rtkit-daemon1257-21rtkit-daemon23:49:231
125899320,3rtkit-daemon1257-21rtkit-daemon21:06:030
125899320,3rtkit-daemon0-21swapper/021:10:451
125899320,3rtkit-daemon0-21swapper/020:32:091
125899310,4rtkit-daemon1257-21rtkit-daemon00:18:100
125899310,3rtkit-daemon1257-21rtkit-daemon20:24:360
125899310,3rtkit-daemon0-21swapper/021:59:061
125899310,2rtkit-daemon1257-21rtkit-daemon21:59:250
125899300,5rtkit-daemon1263-21sendmail-mta21:50:510
125899300,4rtkit-daemon0-21swapper/120:01:220
125899300,3rtkit-daemon0-21swapper/122:35:270
125899300,3rtkit-daemon0-21swapper/120:47:260
125899300,3rtkit-daemon0-21swapper/021:08:461
125899290,4rtkit-daemon1263-21sendmail-mta22:08:110
125899290,4rtkit-daemon1257-21rtkit-daemon22:50:590
125899290,3rtkit-daemon1257-21rtkit-daemon20:39:490
125899290,3rtkit-daemon0-21swapper/123:01:430
125899290,3rtkit-daemon0-21swapper/100:25:310
125899290,3rtkit-daemon0-21swapper/023:17:431
125899290,3rtkit-daemon0-21swapper/023:10:021
125899290,3rtkit-daemon0-21swapper/020:26:241
125899290,3rtkit-daemon0-21swapper/020:23:351
125899290,1rtkit-daemon1257-21rtkit-daemon23:02:041
125899290,1rtkit-daemon1257-21rtkit-daemon22:35:141
125899280,4rtkit-daemon1257-21rtkit-daemon19:16:150
125899280,4rtkit-daemon1257-21rtkit-daemon00:02:421
125899280,3rtkit-daemon0-21swapper/120:09:060
125899280,3rtkit-daemon0-21swapper/119:48:000
125899280,24rtkit-daemon1004-21kerneloops21:00:300
2248587992719,4cyclictest2352647-21python322:25:031
224858799270,6cyclictest0-21swapper/120:09:031
224858399273,17cyclictest2266894-21apt-get19:55:150
2248583992724,2cyclictest63750irq/132-enp2s022:30:410
2248583992713,9cyclictest2248714-21apt-get19:10:140
2248583992713,9cyclictest2248714-21apt-get19:10:140
125899270,3rtkit-daemon0-21swapper/119:42:520
125899270,2rtkit-daemon0-21swapper/022:23:051
224858799260,8cyclictest2250639-21munin-node19:15:021
224858799260,6cyclictest0-21swapper/122:14:511
224858799253,15cyclictest2429590-21apt-get00:10:171
125899250,21rtkit-daemon2248576-21cyclictest21:43:461
125899250,1rtkit-daemon1257-21rtkit-daemon22:08:381
224858799242,14cyclictest2443973-21apt-get00:30:161
224858799240,6cyclictest0-21swapper/122:16:181
224858799240,6cyclictest0-21swapper/121:37:581
2248583992412,7cyclictest63750irq/132-enp2s022:40:130
224858399240,6cyclictest0-21swapper/023:47:270
224858399240,6cyclictest0-21swapper/022:57:120
224858399240,5cyclictest0-21swapper/023:17:460
125899240,1rtkit-daemon1257-21rtkit-daemon23:40:291
125899240,1rtkit-daemon1257-21rtkit-daemon20:31:390
125899240,1rtkit-daemon1257-21rtkit-daemon20:27:180
125899240,19rtkit-daemon1257-21rtkit-daemon20:50:530
125899240,19rtkit-daemon1257-21rtkit-daemon19:37:231
125899240,19rtkit-daemon1257-21rtkit-daemon19:32:000
125899240,19rtkit-daemon1257-21rtkit-daemon00:11:330
2248583992312,6cyclictest2311943-21apt-get21:30:130
224858399231,18cyclictest2323639-21apt-get21:45:190
2248583992310,8cyclictest63750irq/132-enp2s023:50:170
125899230,4rtkit-daemon1257-21rtkit-daemon19:41:351
125899230,1rtkit-daemon1257-21rtkit-daemon21:43:400
125899230,19rtkit-daemon0-21swapper/023:25:430
125899230,19rtkit-daemon0-21swapper/022:29:360
22756082220,3sleep00-21swapper/020:15:200
224858799224,11cyclictest2273180-21apt-get20:10:171
224858799224,10cyclictest2400777-21apt-get23:30:141
224858399227,5cyclictest0-21swapper/022:03:370
224858399223,11cyclictest2447622-21apt-get00:35:170
224858399222,14cyclictest2264947-21apt-get19:50:160
224858399222,14cyclictest2264947-21apt-get19:50:160
224858399222,12cyclictest2367766-21apt-get22:45:150
224858399221,17cyclictest2423069-21ssh00:00:180
125899220,18rtkit-daemon0-21swapper/019:26:070
224858799212,13cyclictest2255166-21apt-get19:25:151
224858399212,13cyclictest2419119-21apt-get23:55:140
2248583992115,4cyclictest2401941-21cat23:30:260
224858799201,17cyclictest2268643-21latency_hist20:00:001
224858799201,13cyclictest2262993-21apt-get19:45:161
224858799190,3cyclictest0-21swapper/119:50:201
224858799190,3cyclictest0-21swapper/119:50:201
2248583991914,3cyclictest2306770-21sh21:21:500
2248583991910,7cyclictest2273780-21memory20:10:220
224858399177,8cyclictest2253966-21ntpq19:20:210
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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