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2026-09-11 - 10:12
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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 Fri Sep 11, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12024872267205,47sleep00-21swapper/019:05:210
12039862265197,53sleep10-21swapper/119:07:331
12227402600,3sleep1251rcuc/119:50:251
136599590,5rtkit-daemon1364-21rtkit-daemon21:25:421
1204586995716,14cyclictest1311825-21grep22:30:220
1204586995619,12cyclictest1264545-21apt-get21:25:120
1204586995615,20cyclictest1209697-21basename19:20:170
12753852550,5sleep01275387-21cut21:40:180
1204586995522,14cyclictest1337590-21ssh23:08:510
1204586995522,14cyclictest1310288-21ssh22:29:190
1204586995522,13cyclictest1331444-21ssh23:00:030
1204586995521,13cyclictest1326071-21ssh22:50:380
136599540,3rtkit-daemon1364-21rtkit-daemon21:34:521
136599520,4rtkit-daemon1364-21rtkit-daemon22:44:131
136599520,4rtkit-daemon1364-21rtkit-daemon19:58:550
136599520,4rtkit-daemon1364-21rtkit-daemon00:15:060
136599510,4rtkit-daemon1364-21rtkit-daemon19:15:521
136599510,3rtkit-daemon1364-21rtkit-daemon19:39:121
136599510,3rtkit-daemon0-21swapper/020:57:090
1204586995117,11cyclictest1296920-21apt-get22:10:120
136599500,3rtkit-daemon1364-21rtkit-daemon22:36:160
136599500,3rtkit-daemon1364-21rtkit-daemon20:33:501
1204586995022,10cyclictest1375353-21ssh00:01:340
1204586995021,10cyclictest813-21snmpd21:20:230
1204586995021,10cyclictest1372285-21ssh23:57:310
1204586995019,11cyclictest1321661-21hwlatdetect22:45:190
1204586995015,13cyclictest1355887-21apt-get23:35:130
1204586995015,10cyclictest1393842-21apt-get00:30:060
1204586995014,13cyclictest2157684-21tfileserver21:18:440
1204586995014,13cyclictest13070392sleep022:24:590
1204586995014,12cyclictest1249816-21apt-get21:00:120
136599490,4rtkit-daemon1364-21rtkit-daemon23:33:220
136599490,4rtkit-daemon1364-21rtkit-daemon22:47:391
136599490,4rtkit-daemon1364-21rtkit-daemon00:08:170
1204586994916,17cyclictest1365602-21rm23:48:110
136599480,4rtkit-daemon1364-21rtkit-daemon20:45:171
136599480,4rtkit-daemon1364-21rtkit-daemon19:47:371
1204586994816,16cyclictest1360874-21taskset23:40:470
1204586994814,12cyclictest1340651-21sh23:11:550
136599470,4rtkit-daemon1364-21rtkit-daemon21:59:400
1204586994721,9cyclictest1350381-21ssh23:25:300
1204586994613,12cyclictest0-21swapper/000:29:560
136599450,4rtkit-daemon0-21swapper/121:43:131
136599450,3rtkit-daemon1364-21rtkit-daemon22:43:590
136599450,3rtkit-daemon0-21swapper/019:52:230
1204586994514,11cyclictest1245873-21awk20:50:120
1204586994514,10cyclictest1302056-21seq22:16:110
1204586994513,13cyclictest0-21swapper/023:18:520
1204586994513,11cyclictest0-21swapper/020:15:180
1204586994413,12cyclictest0-21swapper/021:37:270
1204586994413,11cyclictest1327974-21runrttasks22:55:120
136599430,4rtkit-daemon1364-21rtkit-daemon23:10:251
136599430,4rtkit-daemon1364-21rtkit-daemon20:08:440
136599430,3rtkit-daemon0-21swapper/023:39:121
1204586994313,10cyclictest1226349-21seq20:00:190
136599420,6rtkit-daemon1401055-21ssh00:39:501
136599420,1rtkit-daemon1364-21rtkit-daemon22:00:580
13172952420,6sleep1251rcuc/122:39:461
136599410,3rtkit-daemon0-21swapper/123:46:361
136599410,3rtkit-daemon0-21swapper/000:30:391
136599410,1rtkit-daemon1364-21rtkit-daemon22:06:280
136599410,1rtkit-daemon1364-21rtkit-daemon21:14:090
136599400,3rtkit-daemon0-21swapper/123:20:521
136599400,3rtkit-daemon0-21swapper/000:26:041
120458699408,13cyclictest0-21swapper/021:31:180
136599390,4rtkit-daemon1364-21rtkit-daemon21:45:371
136599390,4rtkit-daemon1364-21rtkit-daemon20:20:471
136599390,4rtkit-daemon1364-21rtkit-daemon19:23:151
136599390,3rtkit-daemon0-21swapper/123:44:431
120458699394,18cyclictest1279268-21seq21:45:210
1204586993912,8cyclictest782-21runrttasks23:53:570
120458699390,12cyclictest1216879-21apt-get19:40:070
136599380,3rtkit-daemon0-21swapper/119:42:351
136599380,3rtkit-daemon0-21swapper/023:33:521
136599380,3rtkit-daemon0-21swapper/022:13:301
136599380,3rtkit-daemon0-21swapper/021:00:101
136599380,1rtkit-daemon1364-21rtkit-daemon19:30:400
120458699388,12cyclictest0-21swapper/019:26:320
120458699387,13cyclictest1245138-21awk20:45:230
1204586993823,9cyclictest1251780-21apt-get21:05:150
1204586993823,9cyclictest1241953-21apt-get20:40:120
1204586993822,6cyclictest1347653-21ssh23:22:060
136599370,4rtkit-daemon1364-21rtkit-daemon20:40:341
136599370,4rtkit-daemon0-21swapper/021:10:271
136599370,3rtkit-daemon1364-21rtkit-daemon00:10:010
136599370,3rtkit-daemon0-21swapper/120:29:541
136599370,3rtkit-daemon0-21swapper/119:27:251
136599370,12rtkit-daemon0-21swapper/119:36:020
120459199376,8cyclictest1293306-21apt-get22:05:141
1204586993723,8cyclictest1238007-21apt-get20:30:120
120458699372,14cyclictest0-21swapper/020:35:410
136599360,3rtkit-daemon0-21swapper/019:59:511
1204591993611,9cyclictest1382159-21sh00:11:491
120459199360,22cyclictest1373528-21apt-get00:00:121
120458699367,16cyclictest0-21swapper/000:37:320
1204586993622,8cyclictest1234081-21apt-get20:20:120
136599350,4rtkit-daemon1364-21rtkit-daemon20:51:151
136599350,3rtkit-daemon1364-21rtkit-daemon21:15:241
136599350,3rtkit-daemon0-21swapper/020:58:361
120459199355,7cyclictest1324665-21apt-get22:50:161
120459199352,21cyclictest1345270-21ssh23:19:441
120458699357,15cyclictest0-21swapper/021:50:190
120458699356,15cyclictest0-21swapper/020:10:180
1204586993521,8cyclictest1387160-21apt-get00:20:120
1204586993521,8cyclictest1236043-21apt-get20:25:120
136599340,4rtkit-daemon1364-21rtkit-daemon22:20:051
136599340,3rtkit-daemon0-21swapper/000:19:501
120459199344,8cyclictest1370075-21apt-get23:55:151
1204586993422,10cyclictest1205788-21/usr/sbin/munin19:10:260
1204586993419,9cyclictest1219482-21apt-get19:45:120
1204586993419,13cyclictest1207171-21munin-node19:15:030
120459199334,7cyclictest1307374-21grep22:25:151
136599320,3rtkit-daemon0-21swapper/020:01:451
136599320,3rtkit-daemon0-21swapper/000:21:071
120459199324,7cyclictest1282799-21ntp_states21:50:211
120459199324,6cyclictest1274826-21apt21:40:011
120459199324,16cyclictest1333164-21ssh23:01:101
136599310,3rtkit-daemon0-21swapper/120:05:471
120459199315,6cyclictest1327977-21apt-get22:55:131
120459199311,19cyclictest1366484-21ssh23:50:071
120459199311,14cyclictest1292576-21sh22:04:541
120459199304,7cyclictest1348986-21apt-get23:25:111
120459199302,4cyclictest26-21ksoftirqd/122:15:231
1204591993014,9cyclictest1323883-1kworker/u9:200:05:131
120459199301,13cyclictest1312826-21ssh22:32:091
120459199290,7cyclictest1285588-21apt-get21:55:111
120459199280,7cyclictest1334931-21apt-get23:05:131
120459199275,8cyclictest26-21ksoftirqd/119:30:141
120459199274,6cyclictest1263368-21ssh21:22:311
120459199265,8cyclictest26-21ksoftirqd/120:10:181
120459199263,6cyclictest1204695-21/usr/sbin/munin19:10:161
120459199252,7cyclictest1240226-21fschecks_count20:35:171
120459199251,8cyclictest1252646-21ps21:05:231
120459199251,6cyclictest1231478-21apt-get20:15:021
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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