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2026-04-25 - 14:59
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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 rack1slot3.osadl.org (updated Sat Apr 25, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1399338991711,4cyclictest0-21swapper/311:35:123
139933899140,11cyclictest0-21swapper/309:20:123
139933899130,11cyclictest0-21swapper/309:50:153
139933899124,7cyclictest26450irq/132-ahci[0000:00:17.0]12:05:013
1399338991212,0cyclictest0-21swapper/312:27:253
1399338991211,0cyclictest0-21swapper/311:50:183
1399338991211,0cyclictest0-21swapper/311:20:013
1399338991211,0cyclictest0-21swapper/310:30:133
139933899120,11cyclictest0-21swapper/310:50:133
139933899120,11cyclictest0-21swapper/307:35:013
139933899120,0cyclictest0-21swapper/307:20:133
1399338991111,0cyclictest0-21swapper/308:15:123
139933899110,11cyclictest0-21swapper/307:15:003
139933899110,10cyclictest0-21swapper/312:05:133
139933899110,10cyclictest0-21swapper/311:25:163
139933899110,10cyclictest0-21swapper/308:55:193
139933899110,0cyclictest0-21swapper/312:10:133
139933899110,0cyclictest0-21swapper/310:15:183
139933899110,0cyclictest0-21swapper/307:40:113
139933899109,0cyclictest0-21swapper/311:05:133
139933899109,0cyclictest0-21swapper/310:45:013
139933899109,0cyclictest0-21swapper/309:15:133
139933899109,0cyclictest0-21swapper/308:45:013
139933899109,0cyclictest0-21swapper/308:35:133
139933899108,1cyclictest0-21swapper/309:40:013
1399338991010,0cyclictest0-21swapper/310:45:113
1399338991010,0cyclictest0-21swapper/309:30:013
1399338991010,0cyclictest0-21swapper/307:47:053
1399338991010,0cyclictest0-21swapper/307:15:013
139933899100,9cyclictest0-21swapper/312:30:113
139933899100,9cyclictest0-21swapper/308:25:133
139933899100,9cyclictest0-21swapper/307:55:143
139933899100,0cyclictest0-21swapper/312:20:013
139933899100,0cyclictest0-21swapper/311:59:563
139933899100,0cyclictest0-21swapper/310:55:173
139933899100,0cyclictest0-21swapper/309:45:183
139933899100,0cyclictest0-21swapper/308:10:003
13993389999,0cyclictest0-21swapper/309:30:203
13993389999,0cyclictest0-21swapper/308:10:193
13993389998,0cyclictest0-21swapper/312:35:143
13993389998,0cyclictest0-21swapper/307:35:193
13993389990,0cyclictest0-21swapper/311:20:173
13993389988,0cyclictest0-21swapper/311:40:183
13993389988,0cyclictest0-21swapper/308:45:193
13993389977,0cyclictest0-21swapper/311:46:583
13993389977,0cyclictest0-21swapper/311:00:123
13993389977,0cyclictest0-21swapper/309:00:113
13993389977,0cyclictest0-21swapper/308:50:123
13993389977,0cyclictest0-21swapper/308:00:193
13993389977,0cyclictest0-21swapper/307:25:163
1402530260,1sleep01402659-21ntpq07:15:170
13993389966,0cyclictest0-21swapper/311:33:593
13993389966,0cyclictest0-21swapper/310:20:153
13993389966,0cyclictest0-21swapper/310:00:093
13993389966,0cyclictest0-21swapper/309:55:143
13993389965,1cyclictest0-21swapper/312:20:123
13993389965,0cyclictest0-21swapper/308:30:133
13993389960,2cyclictest0-21swapper/311:10:133
1397532261,3sleep30-21swapper/307:05:043
13993389955,0cyclictest0-21swapper/310:05:123
13993389954,0cyclictest0-21swapper/310:35:173
13993389954,0cyclictest0-21swapper/310:25:133
13993389954,0cyclictest0-21swapper/309:10:163
13993389953,1cyclictest0-21swapper/310:10:083
13993389953,1cyclictest0-21swapper/307:50:123
13993389950,0cyclictest0-21swapper/309:40:123
13993389944,0cyclictest0-21swapper/309:05:163
13993389943,0cyclictest0-21swapper/308:20:133
1399180241,0sleep00-21swapper/007:09:420
1398908242,1sleep20-21swapper/207:06:112
1397542242,1sleep10-21swapper/107:05:101
1533527230,0sleep00-21swapper/012:35:210
1529846230,0sleep00-21swapper/012:27:250
1521170230,0sleep00-21swapper/012:06:470
1470399230,0sleep10-21swapper/110:05:201
1445914230,1sleep00-21swapper/009:07:130
1416381231,1sleep01416646-21sed07:50:200
1413499230,1sleep21413527-21apt-get07:45:142
1406460230,2sleep01406559-21head07:25:180
1532133220,0sleep10-21swapper/112:34:141
1515965220,1sleep21516061-21cut11:55:162
1515581220,1sleep01515760-21sort11:55:140
1510024220,1sleep01510131-21/usr/sbin/munin11:40:170
1506502220,0sleep00-21swapper/011:31:170
1501469220,1sleep01501642-21/usr/sbin/munin11:20:210
1496507220,1sleep21496612-21aten_r1power_po11:10:132
1490986220,1sleep21491143-21mailstats10:55:172
1489811220,0sleep00-21swapper/010:53:420
1485129220,1sleep00-21swapper/010:41:230
1484686220,1sleep21484976-21sed10:40:212
1483898220,1sleep11483713-21/usr/sbin/munin10:40:161
1482950220,1sleep00-21swapper/010:35:410
1465007220,1sleep01465225-21tr09:55:150
1464661220,1sleep21464676-21apt09:55:012
1458764220,1sleep01458981-21expr09:40:140
1452614220,1sleep11452890-21expr09:25:141
1449260220,1sleep20-21swapper/209:15:182
1448946220,1sleep01449158-21ntpq09:15:160
1446135220,0sleep10-21swapper/109:10:011
1444207220,0sleep20-21swapper/209:04:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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