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2025-10-18 - 13:14
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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 Sat Oct 18, 2025 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
140550623510,16sleep11405503-21if_enp2s019:05:351
14057332274216,43sleep00-21swapper/019:05:380
15193712670,2sleep00-21swapper/022:35:260
15988622600,5sleep01598821-21gltestperf00:25:180
15739072560,3sleep00-21swapper/023:50:160
14508102540,4sleep01450806-21cron21:00:000
125899540,5rtkit-daemon1257-21rtkit-daemon19:53:500
125899530,4rtkit-daemon1257-21rtkit-daemon21:44:070
125899530,4rtkit-daemon1257-21rtkit-daemon00:31:160
15777542520,4sleep1251rcuc/123:55:021
140687399522,6cyclictest1473713-21apt-get21:35:140
15915232510,2sleep10-21swapper/100:14:571
140687399502,13cyclictest1496164-21apt-get22:05:120
140687399501,8cyclictest1491672-21ssh21:58:290
125899500,4rtkit-daemon1257-21rtkit-daemon22:23:460
125899500,3rtkit-daemon1257-21rtkit-daemon23:14:210
140687399492,6cyclictest1525387-21apt-get22:45:160
140687399491,8cyclictest1512563-21ssh22:26:130
15593852480,4sleep01559380-21hwlatdetect23:30:220
140687399482,4cyclictest1481506-40apt-check21:45:220
140687399481,9cyclictest1572319-21ssh23:46:570
125899480,4rtkit-daemon1257-21rtkit-daemon19:28:541
16078672470,4sleep10-21swapper/100:37:311
140687399471,8cyclictest1465467-21ssh21:23:370
140687399470,8cyclictest1597749-21ssh00:23:540
125899470,4rtkit-daemon1257-21rtkit-daemon22:57:421
15978452460,4chrt0-21swapper/100:24:081
140687399462,4cyclictest1469924-21apt-get21:30:130
140687399462,4cyclictest1439291-21apt-get20:30:140
140687399461,7cyclictest1485270-21apt-get21:50:140
140687399461,5cyclictest1425585-21apt-get19:55:140
140687399461,5cyclictest1422451-21ntp_states19:45:220
140687399461,5cyclictest1416169-21ntp_states19:30:230
140687399452,12cyclictest1533179-21apt-get22:55:190
140687399451,9cyclictest1551250-21munin-run23:20:000
140687399451,8cyclictest1593733-21ssh00:17:240
140687399451,8cyclictest1458605-21munin-run21:15:000
140687399451,6cyclictest1580171-21ssh23:57:240
140687399450,9cyclictest1445674-21irqstats20:45:190
14552832440,4sleep10-21swapper/121:10:191
140687399441,9cyclictest1565947-21munin-run23:40:010
140687399440,9cyclictest1558670-21munin-run23:30:000
140687399432,5cyclictest1466329-21apt-get21:25:180
140687399431,9cyclictest1452800-21munin-run21:05:000
140687399431,9cyclictest1429318-21munin-run20:05:000
140687399431,6cyclictest1454741-21diskmemload22:54:300
140687399431,5cyclictest1418116-21ntp_states19:35:220
140687399430,9cyclictest1588484-21munin-run00:10:000
125899430,7rtkit-daemon1507173-21apt-get22:20:141
140687399422,4cyclictest1492859-21diskstats22:00:210
140687399421,8cyclictest1541332-21ntp_states23:05:230
140687399421,6cyclictest1454741-21diskmemload21:16:330
140687399411,8cyclictest1432227-21ntp_states20:10:220
140687399411,7cyclictest1433616-21df_inode20:15:150
140687399411,6cyclictest1454741-21diskmemload22:30:080
140687399410,8cyclictest1552108-21irqstats23:20:210
140687399401,8cyclictest1454741-21diskmemload23:41:110
140687399401,6cyclictest1454741-21diskmemload22:15:550
125899390,6rtkit-daemon1257-21rtkit-daemon21:38:201
125899390,4rtkit-daemon1257-21rtkit-daemon23:40:151
125899390,3rtkit-daemon0-21swapper/121:03:191
140687399381,5cyclictest1454741-21diskmemload00:36:170
140687399371,5cyclictest1454741-21diskmemload22:44:150
125899370,5rtkit-daemon1257-21rtkit-daemon23:35:421
125899370,4rtkit-daemon1257-21rtkit-daemon00:05:171
125899370,3rtkit-daemon0-21swapper/023:04:100
125899370,3rtkit-daemon0-21swapper/022:33:451
125899360,5rtkit-daemon1454741-21diskmemload22:44:521
125899360,4rtkit-daemon1257-21rtkit-daemon23:46:491
125899360,3rtkit-daemon1257-21rtkit-daemon19:35:171
125899360,3rtkit-daemon0-21swapper/123:50:591
1406876993511,4cyclictest26-21ksoftirqd/121:15:251
125899350,4rtkit-daemon1257-21rtkit-daemon21:24:181
125899350,4rtkit-daemon1257-21rtkit-daemon20:58:001
125899350,3rtkit-daemon0-21swapper/023:13:171
125899340,4rtkit-daemon1257-21rtkit-daemon22:52:401
125899340,4rtkit-daemon1257-21rtkit-daemon21:28:391
125899340,4rtkit-daemon1257-21rtkit-daemon20:45:291
125899340,3rtkit-daemon0-21swapper/019:25:030
140687399332,12cyclictest1406992-21apt-get19:10:120
125899330,4rtkit-daemon1257-21rtkit-daemon20:29:150
125899330,4rtkit-daemon1257-21rtkit-daemon00:02:451
125899330,3rtkit-daemon0-21swapper/020:08:591
14095062320,3sleep11409507-21sort19:15:111
1406876993212,18cyclictest26-21ksoftirqd/120:40:001
140687399327,6cyclictest1435543-21ls20:20:160
140687399322,6cyclictest1447120-21apt-get20:50:170
140687399322,6cyclictest1441243-21apt-get20:35:140
125899320,3rtkit-daemon0-21swapper/023:05:461
125899320,3rtkit-daemon0-21swapper/020:30:451
125899320,3rtkit-daemon0-21swapper/000:31:381
140687399318,3cyclictest0-21swapper/019:19:450
140687399312,5cyclictest1429508-21apt-get20:05:130
140687399311,8cyclictest1590183-21ssh00:10:530
1406873993112,17cyclictest1503058-21sh22:14:160
125899310,4rtkit-daemon1257-21rtkit-daemon00:25:331
125899310,3rtkit-daemon0-21swapper/100:03:180
125899310,3rtkit-daemon0-21swapper/021:50:221
140687699308,14cyclictest1510852-21apt-get22:25:171
140687699307,3cyclictest14934062ntp_kernel_pll_22:00:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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