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2025-12-11 - 00:00
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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 Wed Dec 10, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16016882261189,26sleep00-21swapper/007:09:270
16015762245202,28sleep10-21swapper/107:08:171
175208021110,4sleep00-21swapper/011:23:530
125899740,4rtkit-daemon1257-21rtkit-daemon10:17:400
125899730,4rtkit-daemon1257-21rtkit-daemon10:24:500
125899730,3rtkit-daemon1257-21rtkit-daemon09:15:220
125899720,3rtkit-daemon1257-21rtkit-daemon09:32:140
125899710,4rtkit-daemon1257-21rtkit-daemon09:13:160
160187999633,40cyclictest1673990-21apt-get09:40:151
125899610,4rtkit-daemon1257-21rtkit-daemon09:06:111
160187999580,8cyclictest1732667-21ssh10:56:491
160187999572,40cyclictest1630700-40apt-check08:20:101
160187999572,36cyclictest1670065-21apt-get09:35:141
160187999570,9cyclictest1608197-21seq07:24:381
125899570,4rtkit-daemon1257-21rtkit-daemon11:38:060
160187999558,27cyclictest0-21swapper/107:30:211
160187999550,8cyclictest1764635-21if_enp2s011:40:171
160187999543,6cyclictest1624572-21apt-get08:05:141
160187999542,6cyclictest1614801-21apt-get07:40:151
160187999539,5cyclictest1644386-21seq08:51:101
160187999533,5cyclictest1632824-21apt-get08:25:121
125899530,4rtkit-daemon1257-21rtkit-daemon11:32:030
1601879995211,25cyclictest1782237-21sh12:04:391
160187999512,7cyclictest1793908-21apt-get12:20:141
160187999512,5cyclictest1734361-21apt-get11:00:131
160187999512,13cyclictest1641068-21apt-get08:45:151
160187999511,7cyclictest1769222-21ssh11:45:411
125899510,4rtkit-daemon1257-21rtkit-daemon11:04:240
160187999507,4cyclictest0-21swapper/110:44:571
160187999505,6cyclictest1751849-21ssh11:23:211
1601879995010,29cyclictest1650643-21diskmemload11:16:401
160187999500,10cyclictest1685264-21apt-get09:55:161
160187999492,7cyclictest1622622-21apt-get08:00:131
160187999491,6cyclictest1803354-21ssh12:31:531
160187999490,9cyclictest1650643-21diskmemload09:28:321
160187999490,5cyclictest63750irq/132-enp2s011:30:131
125899490,4rtkit-daemon1257-21rtkit-daemon07:34:040
160187999480,9cyclictest1763897-21munin-run11:40:001
160187999480,9cyclictest1618134-21seq07:46:191
160187999480,8cyclictest1808223-21sh12:39:361
125899480,4rtkit-daemon1257-21rtkit-daemon07:24:310
16916722470,2sleep10-21swapper/110:03:311
16320782470,3sleep00-21swapper/008:20:260
160187999477,3cyclictest828-21runrttasks08:16:271
160187999476,5cyclictest1684567-21seq09:54:121
160187999476,3cyclictest0-21swapper/112:26:421
160187999471,8cyclictest1653032-21ssh09:11:571
160187999470,9cyclictest1715262-40apt-check10:35:081
160187999470,8cyclictest849-21snmpd10:13:101
160187999470,8cyclictest1754586-21seq11:26:101
160187999470,10cyclictest1618699-21apt07:50:121
160187999468,4cyclictest1650643-21diskmemload12:11:041
160187999461,9cyclictest1712125-21ssh10:30:241
160187999461,9cyclictest1709994-21ssh10:28:081
160187999461,5cyclictest1650643-21diskmemload12:18:481
160187999460,9cyclictest1703518-21munin-run10:20:001
160187999460,9cyclictest1639324-21df_inode08:40:181
160187999460,8cyclictest1782913-21df_inode12:05:161
160187999460,8cyclictest1660526-21sh09:21:141
160187999451,7cyclictest1666477-21diskstats09:30:151
160187999451,7cyclictest1637740-21memory08:35:201
160187999451,7cyclictest1602601-21memory07:10:211
160187999441,9cyclictest1650643-21diskmemload10:45:321
160187999441,8cyclictest1694435-21ssh10:06:341
160187999441,7cyclictest1648699-21munin-run09:05:001
160187999441,7cyclictest1613368-21memory07:35:211
160187999433,7cyclictest1775271-21apt-get11:55:141
160187999430,8cyclictest1705465-21ssh10:21:091
160187999421,5cyclictest1620650-21apt-get07:55:141
160187999420,9cyclictest1636476-21users08:30:251
160187999413,28cyclictest1608452-21apt-get07:25:151
160187999411,5cyclictest1650643-21diskmemload11:07:291
160187999411,4cyclictest1650643-21diskmemload10:54:071
125899400,5rtkit-daemon1747273-21ssh11:16:170
125899400,3rtkit-daemon0-21swapper/012:28:120
125899400,3rtkit-daemon0-21swapper/011:26:120
125899400,3rtkit-daemon0-21swapper/010:43:260
125899400,3rtkit-daemon0-21swapper/010:29:530
160187999391,5cyclictest1657406-21ssh09:17:521
125899390,3rtkit-daemon0-21swapper/008:41:520
160187999382,12cyclictest1626525-21apt-get08:10:141
125899380,4rtkit-daemon1257-21rtkit-daemon09:46:370
125899380,3rtkit-daemon0-21swapper/112:39:020
125899380,3rtkit-daemon0-21swapper/011:53:330
125899370,4rtkit-daemon0-21swapper/112:10:520
125899370,4rtkit-daemon0-21swapper/108:57:570
125899370,3rtkit-daemon0-21swapper/112:24:210
125899370,3rtkit-daemon0-21swapper/110:10:440
125899370,3rtkit-daemon0-21swapper/109:00:330
160187999360,8cyclictest1679666-21ssh09:47:001
125899360,4rtkit-daemon1257-21rtkit-daemon07:15:260
125899360,3rtkit-daemon0-21swapper/111:43:150
125899360,3rtkit-daemon0-21swapper/110:08:010
125899360,3rtkit-daemon0-21swapper/011:06:540
160187999350,14cyclictest1745115-21ssh11:14:371
125899350,4rtkit-daemon1257-21rtkit-daemon12:31:580
125899350,4rtkit-daemon1257-21rtkit-daemon09:28:200
125899350,3rtkit-daemon0-21swapper/107:42:410
125899350,3rtkit-daemon0-21swapper/008:28:580
160187999346,4cyclictest1650643-21diskmemload11:50:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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