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2025-12-05 - 08:10
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Fri Dec 05, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3246327254,8sleep00-21swapper/019:01:420
3247026854,9sleep10-21swapper/119:01:471
174232640,0sleep00-21swapper/021:52:030
295302630,1sleep00-21swapper/022:53:450
89352590,0sleep10-21swapper/123:10:511
135402560,2sleep1201899cyclictest21:46:571
2018993710,0cyclictest0-21swapper/123:27:351
2018993310,21cyclictest0-21swapper/122:26:291
2018992929,0cyclictest0-21swapper/123:05:541
2018992910,15cyclictest0-21swapper/121:54:531
2018992710,8cyclictest0-21swapper/121:42:041
2018992710,7cyclictest0-21swapper/119:36:541
2018992710,2cyclictest0-21swapper/119:52:371
201899270,2cyclictest0-21swapper/122:51:221
2017992726,1cyclictest0-21swapper/020:44:290
201799271,25cyclictest0-21swapper/021:15:490
2017992710,8cyclictest0-21swapper/022:36:570
201799270,4cyclictest0-21swapper/000:25:420
201799270,21cyclictest15614-21diskmemload22:59:020
201899260,1cyclictest0-21swapper/100:17:401
2018992523,1cyclictest0-21swapper/120:02:031
2018992520,2cyclictest231ktimersoftd/122:58:201
201899251,0cyclictest0-21swapper/122:03:541
2018992510,10cyclictest0-21swapper/121:39:391
2018992510,10cyclictest0-21swapper/121:39:391
201899250,2cyclictest0-21swapper/122:17:231
2017992510,10cyclictest0-21swapper/023:36:580
201799250,4cyclictest0-21swapper/022:49:250
374322410,3sleep10-21swapper/121:33:081
2018992424,0cyclictest0-21swapper/123:22:011
201899241,3cyclictest0-21swapper/123:43:511
2018992411,11cyclictest15614-21diskmemload21:07:271
2018992410,3cyclictest0-21swapper/100:27:281
2017992410,0cyclictest0-21swapper/022:24:590
201799240,7cyclictest0-21swapper/022:05:150
2018992310,8cyclictest0-21swapper/120:19:081
2018992310,0cyclictest0-21swapper/122:27:171
201899230,7cyclictest0-21swapper/122:09:101
2017992321,1cyclictest81ktimersoftd/021:28:550
2017992310,6cyclictest0-21swapper/023:46:540
2017992310,1cyclictest0-21swapper/023:52:530
201799230,3cyclictest0-21swapper/021:50:140
201799230,22cyclictest0-21swapper/000:30:450
2018992220,1cyclictest11840-21df_inode19:31:531
201899221,3cyclictest0-21swapper/121:29:121
2018992211,5cyclictest0-21swapper/123:14:381
2018992210,7cyclictest2911-21http_loadtime23:46:541
2018992210,1cyclictest0-21swapper/100:08:011
201899220,2cyclictest0-21swapper/122:51:481
201899220,21cyclictest0-21swapper/100:34:511
201899220,1cyclictest0-21swapper/123:19:461
201799223,6cyclictest0-21swapper/021:58:520
2017992215,4cyclictest817-21apache219:52:450
2017992210,6cyclictest0-21swapper/000:01:290
201799220,21cyclictest0-21swapper/000:33:390
201799220,1cyclictest15614-21diskmemload23:05:020
201799220,16cyclictest15614-21diskmemload21:31:560
2453722110,0sleep00-21swapper/020:02:250
201899214,11cyclictest0-21swapper/100:12:011
2018992119,1cyclictest24-21ksoftirqd/120:41:401
2018992110,8cyclictest0-21swapper/122:00:351
2018992110,5cyclictest0-21swapper/123:56:531
2018992110,5cyclictest0-21swapper/119:47:181
2018992110,5cyclictest0-21swapper/119:11:521
201899210,7cyclictest21236-21apache_accesses19:56:541
201899210,3cyclictest0-21swapper/121:16:541
201899210,2cyclictest0-21swapper/122:42:111
201899210,0cyclictest0-21swapper/100:23:431
201799215,8cyclictest0-21swapper/020:06:550
201799211,4cyclictest2014-21kworker/u4:221:22:170
2017992110,7cyclictest0-21swapper/023:45:480
2017992110,6cyclictest0-21swapper/020:55:340
2017992110,5cyclictest0-21swapper/022:16:360
339522010,0sleep10-21swapper/119:07:421
201899201,3cyclictest15614-21diskmemload23:51:471
2018992010,5cyclictest0-21swapper/120:11:531
2018992010,2cyclictest0-21swapper/121:11:581
201799208,7cyclictest636-21nscd00:20:390
201799203,10cyclictest0-21swapper/019:41:530
2017992015,3cyclictest20683-21smartctl23:26:560
2017992013,6cyclictest636-21nscd23:23:280
2017992013,4cyclictest81ktimersoftd/023:16:520
2017992010,3cyclictest0-21swapper/022:44:100
744721910,0sleep00-21swapper/021:38:100
744721910,0sleep00-21swapper/021:38:100
201899196,2cyclictest168-21systemd-journal21:06:071
201899193,2cyclictest15614-21diskmemload22:33:491
201899191,2cyclictest0-21swapper/121:26:221
2018991910,3cyclictest0-21swapper/100:01:521
2018991910,0cyclictest0-21swapper/120:55:581
201899190,9cyclictest13615-21seq21:01:031
201899190,5cyclictest0-21swapper/123:32:541
201799198,7cyclictest3407-21ls20:32:020
201799194,8cyclictest0-21swapper/019:46:520
201799192,10cyclictest0-21swapper/021:02:000
201799191,7cyclictest2911-21grep22:16:580
2017991917,1cyclictest17868-21grep00:07:020
2017991912,3cyclictest0-21swapper/019:25:520
2017991911,4cyclictest0-21swapper/020:30:430
2017991911,4cyclictest0-21swapper/020:11:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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