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2026-05-21 - 07:03
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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 Thu May 21, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10513172318276,28sleep00-21swapper/019:08:410
10511302273232,27sleep10-21swapper/119:06:401
118935721670,2sleep10-21swapper/123:09:131
12335472740,1chrt1233544-21sh00:08:400
12335472740,1chrt1233544-21sh00:08:400
11748912710,3sleep1251rcuc/122:49:481
179699670,4rtkit-daemon1795-21rtkit-daemon00:11:231
11546802600,3sleep1251rcuc/122:20:291
105158999579,6cyclictest0-21swapper/121:42:231
105158999579,6cyclictest0-21swapper/121:42:221
105158999573,6cyclictest1178933-21apt-get22:55:131
105158999572,7cyclictest1108279-21apt-get21:20:141
105158999572,5cyclictest1076559-21apt-get20:10:121
105158999568,6cyclictest1189943-21apt-get23:10:131
105158999563,10cyclictest1078507-21apt-get20:15:131
105158999560,5cyclictest1218797-21ssh23:48:331
105158999552,6cyclictest1134703-21apt-get21:55:111
105158999552,12cyclictest1083197-21ntp_states20:25:201
105158999551,6cyclictest1228316-21ntp_states00:00:211
179699540,3rtkit-daemon0-21swapper/019:36:501
105158999547,8cyclictest0-21swapper/100:19:511
105158999542,7cyclictest1058154-21apt-get19:25:131
105158999542,6cyclictest1220007-21diskstats23:50:151
105158999522,7cyclictest1149420-21apt-get22:15:101
1051589995211,4cyclictest1099825-21diskmemload22:36:241
11453832510,2sleep00-21swapper/022:09:420
10920222510,4sleep10-21swapper/120:50:011
105158999502,5cyclictest1223555-21apt-get23:55:141
105158999491,8cyclictest1099825-21diskmemload21:46:511
105158999471,6cyclictest1099825-21diskmemload00:30:361
10959412460,3sleep00-21swapper/021:00:000
105158799452,6cyclictest13-21ksoftirqd/000:00:000
179699440,3rtkit-daemon1795-21rtkit-daemon23:19:580
105158999444,9cyclictest1182557-21apt-get23:00:131
105158999442,6cyclictest1051701-21apt-get19:10:081
105158999438,7cyclictest1141526-21sshd22:04:091
105158999430,9cyclictest1206985-21ssh23:32:511
105158799436,9cyclictest13-21ksoftirqd/020:20:010
179699420,29rtkit-daemon1051579-21cyclictest22:58:390
105158999420,7cyclictest1200909-21ssh23:25:041
105158799421,8cyclictest13-21ksoftirqd/021:20:010
11699272410,2sleep10-21swapper/122:41:571
105158999412,6cyclictest1103983-21apt-get21:15:131
105158999412,5cyclictest0-21swapper/122:07:441
105158999412,37cyclictest1072031-21munin-run20:00:001
1051589994115,4cyclictest1215438-21mktemp23:45:011
105158799416,8cyclictest13-21ksoftirqd/019:35:120
105158999401,7cyclictest1099825-21diskmemload21:31:521
105158999400,4cyclictest1233255-21ssh00:07:431
105158999400,4cyclictest1233255-21ssh00:07:431
105158999400,2cyclictest1097991-21cat21:05:001
105158999399,7cyclictest1102153-21seq21:11:491
105158999393,7cyclictest1208283-21apt-get23:35:121
105158999392,7cyclictest1066382-21apt-get19:45:101
105158999392,6cyclictest1080486-21apt-get20:20:131
105158999391,7cyclictest1099825-21diskmemload23:20:021
105158999391,7cyclictest1099825-21diskmemload23:19:531
105158999391,7cyclictest1099825-21diskmemload22:11:181
105158999389,7cyclictest1160314-21ls22:30:011
105158999382,7cyclictest1251123-21apt-get00:35:141
1051589993812,4cyclictest1074117-21seq20:02:011
179699370,3rtkit-daemon0-21swapper/119:52:131
179699370,3rtkit-daemon0-21swapper/100:29:571
105158999379,6cyclictest1133660-21seq21:53:111
105158799374,7cyclictest13-21ksoftirqd/000:30:010
105158799373,6cyclictest13-21ksoftirqd/022:55:000
179699360,4rtkit-daemon0-21swapper/119:59:500
179699360,3rtkit-daemon0-21swapper/120:31:331
179699360,3rtkit-daemon0-21swapper/100:23:361
105158999367,6cyclictest1161256-21uname22:30:191
105158999362,6cyclictest1087099-21ntp_states20:35:211
105158999361,6cyclictest1099825-21diskmemload21:36:001
105158799363,7cyclictest13-21ksoftirqd/022:35:000
105158799360,8cyclictest13-21ksoftirqd/021:05:010
179699350,3rtkit-daemon0-21swapper/122:50:271
179699350,3rtkit-daemon0-21swapper/120:14:290
105158999355,7cyclictest1060106-21apt-get19:30:121
105158799355,7cyclictest13-21ksoftirqd/000:20:000
105158799355,7cyclictest1111773-21apt-get21:25:110
1051587993511,9cyclictest13-21ksoftirqd/000:10:220
179699340,3rtkit-daemon0-21swapper/119:43:301
105158799341,7cyclictest13-21ksoftirqd/020:50:010
105158799340,16cyclictest1082413-21/usr/sbin/munin20:25:150
179699330,4rtkit-daemon1795-21rtkit-daemon23:43:560
179699330,3rtkit-daemon0-21swapper/121:44:290
179699330,3rtkit-daemon0-21swapper/121:44:280
179699330,2rtkit-daemon0-21swapper/120:42:111
105158999332,8cyclictest1092196-21apt-get20:50:081
105158999331,4cyclictest141rcu_preempt21:09:591
105158799337,8cyclictest1141763-21sh22:04:360
105158799333,9cyclictest1221602-21ssh23:51:210
105158799333,7cyclictest13-21ksoftirqd/023:45:200
105158799332,7cyclictest13-21ksoftirqd/019:25:000
105158799332,7cyclictest13-21ksoftirqd/000:20:120
105158799331,7cyclictest1149420-21apt-get22:15:120
179699320,4rtkit-daemon0-21swapper/019:15:241
179699320,3rtkit-daemon1795-21rtkit-daemon21:52:410
179699320,3rtkit-daemon1795-21rtkit-daemon21:23:340
105158999321,7cyclictest1099825-21diskmemload21:26:131
105158999320,11cyclictest1056962-21/usr/sbin/munin19:20:211
105158799323,6cyclictest13-21ksoftirqd/023:35:210
105158799322,7cyclictest13-21ksoftirqd/022:10:240
105158799321,7cyclictest13-21ksoftirqd/000:00:240
1051587993210,7cyclictest13-21ksoftirqd/023:05:220
105158799320,9cyclictest13-21ksoftirqd/020:30:230
179699310,4rtkit-daemon1795-21rtkit-daemon19:10:590
179699310,3rtkit-daemon1795-21rtkit-daemon19:27:260
105158799318,8cyclictest13-21ksoftirqd/022:50:010
105158799313,5cyclictest13-21ksoftirqd/023:20:120
105158799312,7cyclictest13-21ksoftirqd/021:30:270
1051587993115,9cyclictest1072666-21apt-get20:00:140
1051587993115,5cyclictest896-21sshd22:25:500
105158799310,9cyclictest1064438-21apt-get19:40:140
105158799310,6cyclictest13-21ksoftirqd/019:50:000
179699300,3rtkit-daemon1795-21rtkit-daemon19:17:510
105158799307,7cyclictest13-21ksoftirqd/023:02:580
105158799305,9cyclictest13-21ksoftirqd/020:05:220
105158799303,7cyclictest161rcuc/021:59:110
105158799303,7cyclictest13-21ksoftirqd/020:40:210
105158799303,6cyclictest13-21ksoftirqd/021:10:140
105158799300,9cyclictest13-21ksoftirqd/019:50:140
105158799300,6cyclictest13-21ksoftirqd/023:35:010
105158799300,6cyclictest1119510-21apt-get21:35:110
179699290,3rtkit-daemon0-21swapper/122:41:570
105158799296,7cyclictest13-21ksoftirqd/021:47:320
105158799294,7cyclictest13-21ksoftirqd/022:35:110
105158799290,7cyclictest1200969-21apt-get23:25:120
179699280,3rtkit-daemon0-21swapper/120:20:310
105158799284,7cyclictest161rcuc/020:54:390
105158799283,7cyclictest13-21ksoftirqd/021:05:130
105158799283,6cyclictest13-21ksoftirqd/022:20:130
105158799281,8cyclictest13-21ksoftirqd/020:35:190
105158799280,9cyclictest13-21ksoftirqd/019:30:090
105158799280,12cyclictest1249140-21seq00:30:490
105158799271,7cyclictest1192994-21seq23:14:280
105158799270,7cyclictest13-21ksoftirqd/000:40:010
179699220,1rtkit-daemon1795-21rtkit-daemon20:59:271
1051589991813,3cyclictest1074719-21grep20:05:171
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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