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2026-03-31 - 09:25
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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 rackcslot2.osadl.org (updated Tue Mar 31, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
155527252,8sleep10-21swapper/119:08:441
127627155,8sleep00-21swapper/019:05:500
159482630,0sleep10-21swapper/100:09:361
1788993634,1cyclictest0-21swapper/122:43:161
1787993010,0cyclictest0-21swapper/022:27:340
1787992910,3cyclictest0-21swapper/021:41:030
178899273,6cyclictest0-21swapper/121:22:421
1787992710,1cyclictest0-21swapper/000:07:250
1788992610,7cyclictest0-21swapper/119:24:281
178899260,4cyclictest0-21swapper/121:14:491
1787992616,8cyclictest4968-21apache223:08:290
1787992610,15cyclictest0-21swapper/020:44:370
1787992610,11cyclictest0-21swapper/022:30:440
178799260,22cyclictest14279-21ssh21:51:170
178799260,1cyclictest19434-21apache_volume21:14:290
1787992516,9cyclictest0-21swapper/019:26:180
178899244,19cyclictest0-21swapper/100:33:381
178899243,1cyclictest0-21swapper/122:44:341
1788992411,11cyclictest0-21swapper/100:24:231
1788992410,7cyclictest0-21swapper/121:34:281
178899240,22cyclictest0-21swapper/123:44:271
1787992410,4cyclictest0-21swapper/022:05:280
1787992410,2cyclictest0-21swapper/020:04:280
178899232,3cyclictest0-21swapper/123:34:371
1788992322,0cyclictest0-21swapper/123:21:011
178899231,5cyclictest0-21swapper/119:19:361
1788992310,6cyclictest0-21swapper/120:24:311
1788992310,3cyclictest0-21swapper/120:54:301
178899230,4cyclictest0-21swapper/121:56:101
178899230,15cyclictest0-21swapper/122:29:311
1787992319,1cyclictest81ktimersoftd/022:41:190
1787992318,3cyclictest4972-21apache222:52:260
1787992317,4cyclictest4968-21apache222:35:370
1787992313,5cyclictest100250irq/107-eth1-rx23:58:290
178799231,1cyclictest0-21swapper/023:41:220
1787992311,11cyclictest0-21swapper/021:28:230
1787992310,4cyclictest0-21swapper/021:34:390
1787992310,1cyclictest0-21swapper/023:15:150
178899227,10cyclictest0-21swapper/120:59:341
178899225,15cyclictest0-21swapper/123:54:401
178899222,19cyclictest0-21swapper/122:01:031
1788992217,2cyclictest231ktimersoftd/122:09:321
1788992216,4cyclictest0-21swapper/121:39:281
1788992214,2cyclictest0-21swapper/120:19:291
1788992213,3cyclictest0-21swapper/121:09:321
1788992212,5cyclictest4968-21apache222:37:431
1788992210,5cyclictest0-21swapper/123:24:291
1788992210,5cyclictest0-21swapper/122:14:351
178799222,2cyclictest0-21swapper/021:54:530
1787992218,0cyclictest0-21swapper/023:11:190
1787992216,4cyclictest4968-21apache220:49:280
1787992211,5cyclictest0-21swapper/021:29:320
1787992210,10cyclictest0-21swapper/022:03:330
178899213,17cyclictest0-21swapper/122:04:371
1788992110,4cyclictest0-21swapper/119:29:281
1788992110,10cyclictest0-21swapper/123:11:221
1788992110,0cyclictest0-21swapper/121:51:061
1787992116,5cyclictest4972-21apache200:00:030
1787992114,4cyclictest4972-21apache200:33:130
1787992111,8cyclictest0-21swapper/021:04:350
1787992110,5cyclictest0-21swapper/000:17:100
1787992110,4cyclictest0-21swapper/022:59:360
1787992110,4cyclictest0-21swapper/022:15:080
1787992110,4cyclictest0-21swapper/020:09:370
1787992110,3cyclictest0-21swapper/019:34:380
1787992110,3cyclictest0-21swapper/000:34:360
178799210,2cyclictest0-21swapper/021:11:050
178799210,20cyclictest0-21swapper/020:19:050
2385322010,0sleep00-21swapper/000:21:240
178899204,15cyclictest0-21swapper/122:22:401
178899203,9cyclictest0-21swapper/123:39:341
1788992010,4cyclictest0-21swapper/122:52:171
1788992010,4cyclictest0-21swapper/119:54:291
1788992010,4cyclictest0-21swapper/100:09:171
1788992010,3cyclictest0-21swapper/120:47:111
178799206,5cyclictest0-21swapper/019:59:290
178799204,3cyclictest0-21swapper/022:54:350
178799203,7cyclictest0-21swapper/020:34:280
1787992019,1cyclictest4972-21apache223:45:370
1787992016,2cyclictest802-21apache221:02:470
178799201,4cyclictest0-21swapper/019:09:360
1787992010,7cyclictest0-21swapper/023:36:450
1787992010,4cyclictest0-21swapper/020:24:300
178799200,20cyclictest0-21swapper/023:19:330
178799200,1cyclictest0-21swapper/022:20:560
93021910,0sleep10-21swapper/100:34:371
2794321910,0sleep00-21swapper/000:27:230
178899199,9cyclictest15420-21diskmemload21:47:001
178899194,8cyclictest0-21swapper/100:22:231
1788991919,0cyclictest0-21swapper/123:52:421
1788991910,6cyclictest0-21swapper/123:18:011
1788991910,6cyclictest0-21swapper/119:51:261
1788991910,5cyclictest0-21swapper/121:04:381
1788991910,4cyclictest0-21swapper/120:09:371
1788991910,4cyclictest0-21swapper/119:39:371
1788991910,2cyclictest9599-21kworker/1:220:34:321
178799193,8cyclictest0-21swapper/020:54:290
178799193,8cyclictest0-21swapper/019:19:330
1787991915,3cyclictest4972-21apache223:49:410
1787991913,5cyclictest0-21swapper/019:18:220
1787991910,4cyclictest26501-21/usr/sbin/munin22:09:310
1787991910,4cyclictest0-21swapper/023:29:330
1787991910,4cyclictest0-21swapper/019:49:280
1787991910,4cyclictest0-21swapper/000:09:500
178799190,18cyclictest0-21swapper/020:40:220
1162021910,1sleep00-21swapper/021:48:230
178899182,13cyclictest0-21swapper/119:14:281
1788991811,3cyclictest9548-21seq23:59:571
1788991811,3cyclictest0-21swapper/120:09:171
1788991811,2cyclictest0-21swapper/100:15:281
1788991810,7cyclictest0-21swapper/123:31:481
1788991810,5cyclictest0-21swapper/120:29:281
1788991810,4cyclictest0-21swapper/120:49:281
1788991810,3cyclictest0-21swapper/122:54:301
1788991810,3cyclictest0-21swapper/122:24:311
1788991810,3cyclictest0-21swapper/119:09:281
1788991810,2cyclictest0-21swapper/121:29:231
178899180,13cyclictest0-21swapper/121:24:301
178799183,12cyclictest0-21swapper/021:21:030
1787991810,4cyclictest0-21swapper/022:46:570
1787991810,1cyclictest0-21swapper/020:22:360
149521810,0sleep00-21swapper/020:29:550
178899175,9cyclictest0-21swapper/119:44:351
178899173,8cyclictest5844-21munin-run20:44:161
178899173,7cyclictest0-21swapper/122:59:371
178799175,11cyclictest0-21swapper/019:31:080
1788991610,3cyclictest0-21swapper/123:04:471
1788991610,2cyclictest0-21swapper/120:18:011
1787991610,3cyclictest0-21swapper/019:44:310
178799160,1cyclictest0-21swapper/023:26:030
1788991510,1cyclictest0-21swapper/119:34:291
178799153,7cyclictest0-21swapper/019:54:280
1787991510,2cyclictest0-21swapper/019:39:300
1788991310,1cyclictest0-21swapper/120:02:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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