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2026-01-08 - 10:11
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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 rackcslot4.osadl.org (updated Thu Jan 08, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13664712281217,48sleep00-21swapper/019:09:390
13662492276195,27sleep10-21swapper/119:07:151
136661299572,7cyclictest1503822-21apt-get23:05:141
136661299572,7cyclictest1473323-21apt-get22:25:141
136661299563,9cyclictest1414754-21apt-get21:10:121
1366612995513,24cyclictest1467204-21sh22:15:581
13915302540,4sleep01391528-21fschecks_time20:10:160
136661299543,9cyclictest1442438-21apt-get21:45:121
136661299543,6cyclictest1573517-21apt-get00:35:131
136661299542,9cyclictest1511512-21apt-get23:15:111
136661299542,5cyclictest1450284-21apt-get21:55:131
179699530,4rtkit-daemon1795-21rtkit-daemon20:40:420
136661299538,3cyclictest1555567-21ssh00:10:351
136661299532,5cyclictest1426916-21apt-get21:25:121
179699510,3rtkit-daemon1795-21rtkit-daemon22:39:530
136661299512,6cyclictest1488496-21apt-get22:45:131
136661299512,5cyclictest1500080-21apt-get23:00:131
136661299511,8cyclictest1441342-21ssh21:43:221
136661299510,8cyclictest1521158-21ssh23:26:081
136661299510,5cyclictest1395141-21apt-get20:20:111
179699500,4rtkit-daemon1795-21rtkit-daemon20:09:530
136661299508,4cyclictest1410457-21seq20:59:021
136661299501,9cyclictest1484136-21ssh22:39:301
136661299501,9cyclictest1421111-21ssh21:17:091
136661299501,4cyclictest1469470-21apt-get22:20:151
136661299500,9cyclictest1532950-21ssh23:42:061
179699490,3rtkit-daemon1795-21rtkit-daemon19:47:190
136661299492,7cyclictest26-21ksoftirqd/122:30:121
136661299491,5cyclictest1538931-21cnf-update-db23:50:091
136661299490,9cyclictest1528841-21ssh23:36:031
136661299490,9cyclictest1432676-21ssh21:31:161
179699480,4rtkit-daemon1795-21rtkit-daemon19:26:500
179699480,4rtkit-daemon1795-21rtkit-daemon19:26:490
179699480,3rtkit-daemon1795-21rtkit-daemon23:32:191
136661299479,3cyclictest0-21swapper/122:05:331
136661299471,9cyclictest1553905-21munin-run00:10:001
136661299471,7cyclictest1389268-21apt-get20:05:121
136661299471,5cyclictest1434781-21apt-get21:35:121
179699460,3rtkit-daemon1795-21rtkit-daemon20:19:040
15141002460,4chrt0-21swapper/023:17:510
136661299465,5cyclictest1414480-21diskmemload21:50:291
136661299465,5cyclictest1414480-21diskmemload21:50:281
136661299461,9cyclictest1377877-21perl19:35:171
136661299461,8cyclictest1414480-21diskmemload23:45:141
136661299461,6cyclictest1371683-21apt-get19:20:121
136661299460,10cyclictest1424112-21grep21:20:221
136661299450,9cyclictest1401591-21memory20:35:161
136661299442,8cyclictest1565606-21apt-get00:25:131
136661299441,8cyclictest1414480-21diskmemload22:53:261
136661299440,10cyclictest850-21runrttasks19:55:141
136661299432,14cyclictest1461856-21apt-get22:10:121
136661299421,6cyclictest1542817-21apt-get23:55:121
136661299421,5cyclictest1414480-21diskmemload23:10:181
136661299421,5cyclictest1414480-21diskmemload22:03:481
136661299413,8cyclictest1375585-21apt-get19:30:131
136661299413,30cyclictest1569411-21apt-get00:30:131
179699400,4rtkit-daemon1414480-21diskmemload21:41:010
179699390,3rtkit-daemon0-21swapper/020:50:170
136661299393,6cyclictest1369476-21apt-check19:15:031
1366612993913,2cyclictest1518833-21python323:25:021
136661299381,7cyclictest1497747-21apt-get22:55:581
1366612993814,22cyclictest1405788-21processes20:45:211
179699370,5rtkit-daemon0-21swapper/123:34:590
136661299379,5cyclictest1391509-21cut20:10:161
179699360,6rtkit-daemon1543055-21df_inode23:55:140
179699360,3rtkit-daemon0-21swapper/120:00:381
179699360,3rtkit-daemon0-21swapper/022:28:210
179699360,3rtkit-daemon0-21swapper/022:06:180
179699360,3rtkit-daemon0-21swapper/020:49:150
179699360,3rtkit-daemon0-21swapper/000:06:020
136661299369,6cyclictest1375464-21cut19:30:001
136661299369,6cyclictest1375464-21cut19:30:001
136661299368,3cyclictest0-21swapper/119:47:331
136661299366,8cyclictest1564590-21rm00:23:321
179699350,5rtkit-daemon1795-21rtkit-daemon21:33:000
179699350,3rtkit-daemon0-21swapper/019:18:290
136661299357,6cyclictest1412588-21date21:05:001
136661299357,6cyclictest1-21systemd22:45:001
1366612993513,20cyclictest1558179-21df_inode00:15:151
136661299351,10cyclictest1397305-21diskstats20:25:161
179699340,4rtkit-daemon1795-21rtkit-daemon22:48:440
179699340,3rtkit-daemon0-21swapper/123:51:130
179699340,3rtkit-daemon0-21swapper/119:59:340
136661299349,3cyclictest850-21runrttasks21:09:171
136661299341,9cyclictest1366963-21df19:10:141
136661299341,8cyclictest1394171-21/usr/sbin/munin20:15:221
136661299341,11cyclictest1385157-21munin-run19:55:011
179699330,4rtkit-daemon1795-21rtkit-daemon22:58:020
179699330,4rtkit-daemon1795-21rtkit-daemon19:12:010
179699330,3rtkit-daemon0-21swapper/020:37:220
179699330,3rtkit-daemon0-21swapper/019:52:290
136661299331,9cyclictest1407468-21memory20:50:191
1366612993311,3cyclictest1546513-21sh00:00:061
136661299330,12cyclictest1380550-21switchtime19:40:211
179699320,3rtkit-daemon1795-21rtkit-daemon21:55:450
179699320,3rtkit-daemon1795-21rtkit-daemon21:47:400
179699320,3rtkit-daemon0-21swapper/123:29:020
179699320,3rtkit-daemon0-21swapper/121:06:210
179699320,3rtkit-daemon0-21swapper/121:01:440
179699320,2rtkit-daemon0-21swapper/121:22:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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