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2025-10-19 - 08:08
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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 Sun Oct 19, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4678522265188,27sleep10-21swapper/119:05:561
4682312258186,58sleep00-21swapper/019:09:580
46846899671,46cyclictest540352-21apt-get21:40:141
46846899662,43cyclictest517454-21apt-get21:10:161
46846899652,40cyclictest573195-21apt-get22:25:141
125899650,4rtkit-daemon1257-21rtkit-daemon22:40:260
46846899643,42cyclictest587829-21apt-get22:45:151
6545612610,3sleep10-21swapper/100:15:291
125899600,5rtkit-daemon609150-21ssh23:12:270
125899600,5rtkit-daemon609150-21ssh23:12:270
6051992590,2sleep10-21swapper/123:07:461
125899590,4rtkit-daemon1257-21rtkit-daemon21:49:150
125899580,4rtkit-daemon1257-21rtkit-daemon22:33:151
5840852570,3sleep126-21ksoftirqd/122:40:071
46846899572,38cyclictest667286-21apt-get00:35:151
125899570,6rtkit-daemon1257-21rtkit-daemon00:05:580
125899570,4rtkit-daemon1257-21rtkit-daemon22:55:170
125899570,4rtkit-daemon1257-21rtkit-daemon21:11:350
125899570,3rtkit-daemon0-21swapper/022:07:410
125899560,5rtkit-daemon1257-21rtkit-daemon00:24:180
125899560,3rtkit-daemon1257-21rtkit-daemon20:31:310
125899560,3rtkit-daemon0-21swapper/021:37:170
125899550,4rtkit-daemon1257-21rtkit-daemon20:58:261
125899550,3rtkit-daemon0-21swapper/023:31:150
46846899549,29cyclictest626376-21unixbench_singl23:35:291
468468995412,24cyclictest63750irq/132-enp2s023:10:161
468468995412,24cyclictest63750irq/132-enp2s023:10:151
125899540,4rtkit-daemon1257-21rtkit-daemon20:40:420
125899540,4rtkit-daemon1257-21rtkit-daemon19:27:300
125899540,4rtkit-daemon1257-21rtkit-daemon00:16:370
125899540,4rtkit-daemon0-21swapper/000:36:480
125899540,3rtkit-daemon0-21swapper/023:36:030
46846899530,41cyclictest656523-21apt-get00:20:141
125899530,5rtkit-daemon526894-21taskset21:21:281
125899530,4rtkit-daemon1257-21rtkit-daemon20:59:360
125899530,4rtkit-daemon1257-21rtkit-daemon00:03:450
125899530,3rtkit-daemon0-21swapper/022:11:000
46846899528,27cyclictest636534-21cat23:50:181
46846899527,27cyclictest507118-21taskset20:42:171
468468995212,29cyclictest546111-21sh21:47:261
125899520,4rtkit-daemon1257-21rtkit-daemon19:54:540
46846899519,26cyclictest593608-21sh22:51:151
46846899518,30cyclictest0-21swapper/123:19:161
46846899511,38cyclictest557822-21ssh22:04:131
125899510,3rtkit-daemon0-21swapper/000:33:080
125899510,23rtkit-daemon734-21wpa_supplicant20:01:230
6473892500,4sleep1647388-21df00:05:131
46846899508,26cyclictest550080-21taskset21:52:591
46846899507,27cyclictest647015-21cat00:05:001
46846899507,24cyclictest569990-21expr22:20:191
46846899500,3cyclictest530917-21lsb_release21:27:271
125899500,4rtkit-daemon1257-21rtkit-daemon20:45:440
125899500,3rtkit-daemon1257-21rtkit-daemon22:48:590
125899500,3rtkit-daemon1257-21rtkit-daemon22:25:090
46846899491,4cyclictest502944-21apt-get20:35:241
46846899491,36cyclictest601566-21ssh23:02:591
125899490,19rtkit-daemon0-21swapper/123:24:050
125899490,18rtkit-daemon0-21swapper/123:17:110
46846899486,2cyclictest540051-21latency_hist21:40:011
46846899482,37cyclictest468908-21apt-get19:10:141
46846899482,33cyclictest517165-21diskmemload23:58:111
46846899481,3cyclictest580564-21apt-get22:35:171
46846899481,12cyclictest632503-21apt-get23:45:181
125899480,18rtkit-daemon0-21swapper/123:06:310
46846899471,7cyclictest630485-21ssh23:41:181
46846899471,6cyclictest566143-21ls22:15:161
46846899471,33cyclictest517165-21diskmemload21:16:251
46846899470,7cyclictest619618-21seq23:26:131
46846899470,6cyclictest623466-21ssh23:31:531
46846899470,4cyclictest595487-21apt-get22:55:151
46846899461,3cyclictest660115-21apt-get00:25:151
46846899460,6cyclictest650439-21ssh00:10:201
46846899460,6cyclictest563428-21expr22:10:251
46846899460,5cyclictest472494-21sed19:15:271
46846899455,3cyclictest0-21swapper/122:09:111
46846899452,31cyclictest517165-21diskmemload00:30:581
46846899451,3cyclictest498068-21ntp_states20:20:241
46846899450,8cyclictest554590-21seq21:59:551
46846899450,6cyclictest614064-21taskset23:20:011
46846899450,6cyclictest508229-21sed20:45:201
125899450,15rtkit-daemon631993-21ssh23:44:340
46846899441,9cyclictest517165-21diskmemload21:34:561
46846899440,8cyclictest476421-21sed19:25:271
125899440,17rtkit-daemon1257-21rtkit-daemon22:00:460
125899440,14rtkit-daemon0-21swapper/121:51:270
125899440,13rtkit-daemon0-21swapper/120:10:220
46846899435,2cyclictest500362-21cat20:25:251
46846899432,33cyclictest501201-21apt-get20:30:161
46846899431,7cyclictest482504-21sed19:40:281
46846899430,8cyclictest491987-21cat20:05:191
46846899430,6cyclictest488135-21cat19:55:181
46846899430,5cyclictest473854-21cat19:20:201
5833052420,4sleep00-21swapper/022:38:450
46846899421,8cyclictest485908-21ntpq19:50:221
46846899421,3cyclictest515761-21perl21:05:201
46846899420,4cyclictest479016-21seq19:34:411
125899420,3rtkit-daemon1257-21rtkit-daemon22:31:350
125899420,13rtkit-daemon0-21swapper/122:51:000
125899410,3rtkit-daemon0-21swapper/021:58:260
125899410,13rtkit-daemon0-21swapper/119:43:120
46846899400,7cyclictest849-21snmpd21:00:251
46846899391,5cyclictest495303-21/usr/sbin/munin20:15:281
46846899390,4cyclictest489982-21irqstats20:00:191
46846899390,3cyclictest479869-21memory19:35:221
125899380,3rtkit-daemon0-21swapper/023:04:520
125899370,5rtkit-daemon620631-21ssh23:28:280
125899370,4rtkit-daemon1257-21rtkit-daemon19:20:260
46846899359,24cyclictest510417-21which20:50:271
46846899339,21cyclictest493725-21gltestperf20:10:191
46846899338,23cyclictest0-21swapper/119:46:021
125899280,4rtkit-daemon1257-21rtkit-daemon21:17:370
125899260,22rtkit-daemon854-21thermald19:45:340
125899260,22rtkit-daemon854-21thermald19:30:330
46846499252,15cyclictest503654-21apt-get20:35:210
125899250,20rtkit-daemon1257-21rtkit-daemon19:17:410
46846499246,12cyclictest479265-21apt-get19:35:160
46846499242,15cyclictest499247-21apt-get20:25:140
468464992412,8cyclictest569767-21df22:20:160
125899240,1rtkit-daemon1257-21rtkit-daemon22:15:060
46846499232,15cyclictest513472-21apt-get21:00:170
46846499232,14cyclictest491418-21apt-get20:05:140
125899230,17rtkit-daemon1257-21rtkit-daemon19:10:070
46846499228,3cyclictest141rcu_preempt21:35:010
46846499223,11cyclictest649974-21apt-get00:10:150
46846499222,15cyclictest497298-21apt-get20:20:160
46846499222,14cyclictest495322-21apt-get20:15:170
46846499213,5cyclictest13-21ksoftirqd/021:21:170
46846499213,11cyclictest530879-21apt-get21:27:260
46846499213,11cyclictest509549-21apt-get20:50:170
46846499212,13cyclictest515422-21apt-get21:05:170
468464992116,3cyclictest632490-21acpi23:45:170
125899210,3rtkit-daemon1257-21rtkit-daemon00:26:530
46846499202,13cyclictest639651-21/usr/sbin/munin23:55:290
468464992011,7cyclictest13-21ksoftirqd/019:55:020
468464992011,5cyclictest517165-21diskmemload23:53:240
468464991911,4cyclictest517165-21diskmemload21:43:460
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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