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2025-07-15 - 13:05
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack3slot6.osadl.org (updated Tue Jul 15, 2025 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24769210328,28sleep00-21swapper/019:05:030
272982820,16sleep027301-21grep23:45:020
26608998148,17cyclictest14-21ksoftirqd/019:28:380
26608998148,17cyclictest14-21ksoftirqd/019:28:380
26608997847,16cyclictest14-21ksoftirqd/023:06:310
2660899746,13cyclictest0-21swapper/021:25:190
26608997345,15cyclictest14-21ksoftirqd/022:28:050
26608997345,15cyclictest14-21ksoftirqd/022:28:050
26608997241,16cyclictest14-21ksoftirqd/000:36:240
26610997142,10cyclictest514-21snmpd22:56:111
26610997138,10cyclictest26602-21cyclictest22:07:401
26608997139,20cyclictest14-21ksoftirqd/019:55:170
26608997139,15cyclictest14-21ksoftirqd/021:30:190
26608997136,29cyclictest14-21ksoftirqd/022:10:210
2616227134,26sleep10-21swapper/119:07:121
2660899686,55cyclictest16808-21apt-get23:15:160
2660899686,55cyclictest16808-21apt-get23:15:160
2661099677,35cyclictest0-21swapper/122:10:151
26610996746,9cyclictest26-21ksoftirqd/122:19:371
26608996736,25cyclictest14-21ksoftirqd/019:15:160
26610996628,25cyclictest26-21ksoftirqd/123:23:591
26608996635,25cyclictest14-21ksoftirqd/022:15:390
26608996635,25cyclictest14-21ksoftirqd/019:45:340
26608996630,29cyclictest14-21ksoftirqd/000:05:140
26608996535,25cyclictest29668-21telnet22:20:170
276862640,5chrt27689-21unixbench-2d20:40:381
2660899648,50cyclictest0-21swapper/019:40:150
26608996436,22cyclictest14-21ksoftirqd/021:50:230
26608996435,23cyclictest14-21ksoftirqd/021:45:250
26608996435,23cyclictest14-21ksoftirqd/020:05:290
26608996433,8cyclictest14-21ksoftirqd/022:40:210
26608996433,25cyclictest14-21ksoftirqd/023:50:220
26608996433,25cyclictest14-21ksoftirqd/021:55:140
26608996433,11cyclictest14-21ksoftirqd/023:55:260
26608996433,11cyclictest14-21ksoftirqd/000:00:370
26608996431,27cyclictest14-21ksoftirqd/020:45:320
26608996417,25cyclictest14-21ksoftirqd/019:10:340
26610996341,9cyclictest26-21ksoftirqd/100:02:471
26608996333,8cyclictest14-21ksoftirqd/000:35:010
26608996333,24cyclictest14-21ksoftirqd/021:10:000
26608996333,12cyclictest14-21ksoftirqd/023:50:000
26608996331,11cyclictest14-21ksoftirqd/023:25:020
26608996331,11cyclictest14-21ksoftirqd/020:20:250
26608996330,15cyclictest11331-21cron23:00:000
26608996325,15cyclictest14-21ksoftirqd/022:40:000
26608996237,8cyclictest14-21ksoftirqd/019:30:280
26608996235,21cyclictest14-21ksoftirqd/020:10:310
26608996234,23cyclictest14-21ksoftirqd/020:15:200
26608996234,23cyclictest14-21ksoftirqd/020:15:200
26608996234,22cyclictest14-21ksoftirqd/021:20:220
26608996233,23cyclictest14-21ksoftirqd/022:50:470
26608996233,23cyclictest14-21ksoftirqd/021:40:270
26608996224,14cyclictest14-21ksoftirqd/020:40:000
26610996143,12cyclictest27026-21df19:10:191
26610996128,17cyclictest26-21ksoftirqd/100:05:121
26608996138,17cyclictest14-21ksoftirqd/020:55:330
26608996137,18cyclictest14-21ksoftirqd/020:00:290
26608996137,18cyclictest14-21ksoftirqd/000:15:320
26608996133,22cyclictest14-21ksoftirqd/021:35:320
26608996132,8cyclictest14-21ksoftirqd/022:00:210
26608996131,24cyclictest14-21ksoftirqd/021:00:230
26610996043,10cyclictest26-21ksoftirqd/120:45:141
26610996038,9cyclictest26-21ksoftirqd/120:36:281
26608996037,17cyclictest14-21ksoftirqd/023:25:220
26608996037,17cyclictest14-21ksoftirqd/021:10:210
26608996037,17cyclictest14-21ksoftirqd/020:50:330
26608996037,17cyclictest14-21ksoftirqd/020:30:210
26608996036,18cyclictest14-21ksoftirqd/019:20:200
26608996035,19cyclictest14-21ksoftirqd/000:20:210
26608996035,18cyclictest14-21ksoftirqd/023:00:110
26608996035,18cyclictest14-21ksoftirqd/023:00:110
26608996030,24cyclictest14-21ksoftirqd/020:40:150
26608996029,13cyclictest10663-21sh19:54:590
26610995929,18cyclictest0-21swapper/122:30:131
26608995945,9cyclictest14-21ksoftirqd/000:10:120
26608995937,16cyclictest14-21ksoftirqd/023:35:350
26608995937,16cyclictest14-21ksoftirqd/021:15:360
26608995936,17cyclictest14-21ksoftirqd/023:13:140
26608995936,17cyclictest14-21ksoftirqd/022:45:330
26608995936,17cyclictest14-21ksoftirqd/019:35:290
26608995935,18cyclictest14-21ksoftirqd/020:25:200
26608995935,17cyclictest14-21ksoftirqd/022:30:250
26608995935,17cyclictest14-21ksoftirqd/022:05:190
26610995831,19cyclictest420-21dbus-daemon19:39:001
26608995835,17cyclictest14-21ksoftirqd/000:25:300
26608995828,24cyclictest14-21ksoftirqd/023:30:110
2661099576,46cyclictest0-21swapper/123:28:141
26610995734,19cyclictest420-21dbus-daemon00:35:001
2661099573,18cyclictest16276-21ntpq21:40:271
26610995728,19cyclictest26-21ksoftirqd/121:00:151
26610995715,15cyclictest0-21swapper/122:20:131
2661099569,42cyclictest0-21swapper/122:35:251
26610995640,11cyclictest12729-21/usr/sbin/munin00:35:281
26610995612,39cyclictest0-21swapper/121:05:201
2661099553,47cyclictest8748-21runrttasks19:48:141
2661099553,18cyclictest5060-21unixbench_multi00:10:361
26610995529,16cyclictest0-21swapper/119:55:131
287072540,9sleep1251rcuc/119:15:071
2661099548,19cyclictest5052-21apt-get21:10:151
26610995439,9cyclictest26-21ksoftirqd/122:50:131
2661099543,16cyclictest9267-21taskset00:25:191
26610995431,12cyclictest0-21swapper/122:40:121
26610995430,14cyclictest0-21swapper/120:50:181
26610995426,17cyclictest0-21swapper/120:05:121
26610995424,21cyclictest514-21snmpd19:40:271
314892530,6chrt251rcuc/123:55:271
2661099534,45cyclictest0-21swapper/121:53:391
26610995339,9cyclictest514-21snmpd20:10:331
26610995336,12cyclictest514-21snmpd20:00:031
2661099533,16cyclictest11206-21find21:25:401
2661099532,45cyclictest5752-21/usr/sbin/munin00:15:371
2661099532,45cyclictest14955-21seq21:35:591
2661099526,42cyclictest0-21swapper/123:50:371
2661099526,41cyclictest0-21swapper/120:30:341
2661099526,41cyclictest0-21swapper/119:20:201
2661099525,11cyclictest0-21swapper/121:55:381
2661099524,42cyclictest32078-21ntp_states22:25:341
2661099524,42cyclictest32078-21ntp_states22:25:341
26610995238,9cyclictest26-21ksoftirqd/100:21:271
26610995238,9cyclictest16623-21cron23:15:001
26610995237,9cyclictest26-21ksoftirqd/123:06:051
26610995225,22cyclictest420-21dbus-daemon23:45:001
26610995223,21cyclictest26-21ksoftirqd/119:25:141
26610995223,21cyclictest26-21ksoftirqd/119:25:141
26610995223,16cyclictest0-21swapper/119:30:171
26610995218,28cyclictest0-21swapper/122:45:121
26610995217,22cyclictest0-21swapper/123:15:161
26610995217,22cyclictest0-21swapper/123:15:161
26610995210,23cyclictest17327-21apt-get21:45:161
2661099516,40cyclictest0-21swapper/123:30:251
2661099513,42cyclictest99222sleep121:22:591
26610995134,13cyclictest28189-21kworker/u8:223:46:151
26610995128,14cyclictest420-21dbus-daemon19:55:001
26610995126,20cyclictest420-21dbus-daemon23:39:011
26610995123,23cyclictest420-21dbus-daemon21:20:011
26610995118,21cyclictest26-21ksoftirqd/122:00:141
26610995117,19cyclictest0-21swapper/120:20:141
2661099504,11cyclictest12221-21/usr/sbin/munin23:00:271
2661099504,11cyclictest12221-21/usr/sbin/munin23:00:271
26610995035,9cyclictest26-21ksoftirqd/121:30:391
26610994922,20cyclictest22622-21sshd20:26:431
2661099486,10cyclictest0-21swapper/120:15:221
2661099486,10cyclictest0-21swapper/120:15:221
26610994733,9cyclictest26-21ksoftirqd/120:55:371
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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