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2026-03-25 - 13:46
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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 Wed Mar 25, 2026 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
281629623580,10sleep10-21swapper/119:05:311
28166662319279,26sleep00-21swapper/019:06:450
281711699652,44cyclictest2990066-21appstreamcli00:05:050
281711699642,37cyclictest2869447-21apt-get21:15:290
179699640,4rtkit-daemon1795-21rtkit-daemon00:16:280
281711699612,39cyclictest2887479-21apt-get21:40:130
281711699592,39cyclictest2930290-21apt-get22:40:130
281711699592,39cyclictest2930290-21apt-get22:40:130
281711699570,3cyclictest2854110-21strings20:40:200
281711699570,2cyclictest2832581-21grep19:45:200
179699570,5rtkit-daemon1795-21rtkit-daemon21:25:110
281711699558,35cyclictest2965693-21cat23:30:190
281711699550,7cyclictest3002214-21sh00:24:190
281711699540,3cyclictest0-21swapper/021:49:150
281711699538,28cyclictest2873783-21sed21:20:190
281711699531,28cyclictest2936907-21/usr/sbin/munin22:50:000
281711699530,6cyclictest2901305-21ssh21:59:590
281711699530,3cyclictest2834902-21grep19:50:230
281711699529,27cyclictest2823493-21seq19:20:550
281711699528,26cyclictest2944914-21sed23:00:190
281711699528,26cyclictest0-21swapper/023:35:470
281711699526,27cyclictest2846061-21cat20:20:180
281711699526,27cyclictest2846061-21cat20:20:170
281711699519,30cyclictest0-21swapper/019:45:000
281711699511,3cyclictest2939888-21ssh22:53:400
281711699511,3cyclictest2864939-21diskmemload23:07:370
281711699510,3cyclictest2828869-21processes19:35:230
281711699510,3cyclictest0-21swapper/023:10:230
281711699510,3cyclictest0-21swapper/021:01:240
179699510,3rtkit-daemon1795-21rtkit-daemon00:35:200
281711699500,8cyclictest2928139-21seq22:35:310
281711699500,38cyclictest2917676-21ssh22:20:590
281711699500,2cyclictest2844082-21if_enp2s020:15:160
281711699497,30cyclictest2864939-21diskmemload22:00:350
281711699491,7cyclictest3007736-21ssh00:30:500
179699490,4rtkit-daemon1795-21rtkit-daemon20:41:181
28285582480,1chrt2828557-21/usr/sbin/munin19:35:201
281711699481,9cyclictest2957767-21ssh23:19:270
281711699481,8cyclictest2994634-21seq00:10:330
281711699481,30cyclictest2839707-21/usr/sbin/munin20:05:150
281711699480,8cyclictest2964127-21seq23:28:000
281711699477,21cyclictest2911263-21taskset22:12:120
281711699476,29cyclictest0-21swapper/023:55:480
281711699476,25cyclictest2855376-21cpu20:45:140
281711699475,25cyclictest0-21swapper/022:27:410
281711699473,35cyclictest2824088-21apt-get19:25:130
281711699472,32cyclictest2864939-21diskmemload22:56:580
281711699471,7cyclictest2836560-21seq19:55:200
281711699470,6cyclictest2923179-21/usr/sbin/munin22:30:200
281711699470,5cyclictest2976883-21sed23:45:240
281711699470,4cyclictest2986591-21perl00:00:150
179699470,3rtkit-daemon1795-21rtkit-daemon20:02:400
281711699461,8cyclictest2857897-21sed20:50:180
281711699461,7cyclictest2913151-21cat22:15:180
281711699461,6cyclictest2864939-21diskmemload22:08:030
281711699461,5cyclictest2982511-21latency_hist23:55:000
281711699461,2cyclictest2864939-21diskmemload21:30:440
281711699461,10cyclictest2820421-21fschecks_count19:15:170
281711699460,9cyclictest2826627-21sed19:30:190
281711699460,8cyclictest2864690-21taskset21:07:320
281711699460,3cyclictest2816978-21apt-get19:10:090
281711699460,2cyclictest3004895-21ssh00:27:170
281711699452,33cyclictest2847543-21apt-get20:25:140
281711699451,4cyclictest2864939-21diskmemload21:37:150
281711699450,6cyclictest2852176-21seq20:35:200
281711699450,4cyclictest2972762-21sed23:40:200
281711699450,3cyclictest2895285-21sed21:50:200
281711699450,3cyclictest2865442-21df_inode21:10:150
281711699443,32cyclictest2859261-21apt-get20:55:100
281711699441,4cyclictest2864939-21diskmemload23:23:270
281711699440,8cyclictest2842174-21cat20:10:200
281711699430,2cyclictest2850117-21sed20:30:220
179699390,3rtkit-daemon0-21swapper/020:13:221
28718782380,1sleep10-21swapper/121:17:411
29638052370,4sleep10-21swapper/123:27:111
179699360,5rtkit-daemon2926311-21ssh22:34:381
179699360,3rtkit-daemon0-21swapper/120:23:471
179699360,3rtkit-daemon0-21swapper/120:23:461
179699360,3rtkit-daemon0-21swapper/022:05:211
179699340,3rtkit-daemon0-21swapper/120:58:391
2817117993330,2cyclictest0-21swapper/119:40:171
179699330,3rtkit-daemon0-21swapper/022:59:051
179699320,5rtkit-daemon2953650-21ssh23:12:531
179699320,4rtkit-daemon1795-21rtkit-daemon22:19:301
179699320,3rtkit-daemon1795-21rtkit-daemon22:21:361
281711799310,21cyclictest2905434-21munin-run22:05:001
179699310,3rtkit-daemon0-21swapper/023:22:011
179699310,3rtkit-daemon0-21swapper/021:08:581
179699310,3rtkit-daemon0-21swapper/021:02:401
179699310,3rtkit-daemon0-21swapper/020:25:501
179699310,3rtkit-daemon0-21swapper/020:19:091
179699310,3rtkit-daemon0-21swapper/019:10:191
179699310,3rtkit-daemon0-21swapper/000:38:101
179699310,3rtkit-daemon0-21swapper/000:02:451
2817117993028,1cyclictest0-21swapper/121:25:181
179699300,4rtkit-daemon1795-21rtkit-daemon20:39:101
179699300,3rtkit-daemon0-21swapper/023:31:031
179699300,3rtkit-daemon0-21swapper/023:15:161
179699300,3rtkit-daemon0-21swapper/023:02:531
179699300,3rtkit-daemon0-21swapper/022:54:561
179699300,3rtkit-daemon0-21swapper/022:12:251
179699300,3rtkit-daemon0-21swapper/021:54:121
179699300,3rtkit-daemon0-21swapper/020:31:231
179699300,3rtkit-daemon0-21swapper/020:03:011
179699300,3rtkit-daemon0-21swapper/019:18:471
179699300,3rtkit-daemon0-21swapper/000:10:561
281711799298,5cyclictest141rcu_preempt00:05:181
179699290,3rtkit-daemon1795-21rtkit-daemon22:43:531
179699290,3rtkit-daemon1795-21rtkit-daemon22:43:531
179699290,3rtkit-daemon0-21swapper/021:39:511
179699290,3rtkit-daemon0-21swapper/019:53:341
179699290,3rtkit-daemon0-21swapper/019:27:261
179699280,3rtkit-daemon1795-21rtkit-daemon21:33:331
179699280,3rtkit-daemon0-21swapper/021:47:151
179699280,3rtkit-daemon0-21swapper/021:41:141
179699280,3rtkit-daemon0-21swapper/000:32:221
2817117992714,11cyclictest26-21ksoftirqd/100:19:591
2817117992710,10cyclictest2926742-21apt-get22:35:141
179699270,4rtkit-daemon2970951-21ssh23:37:451
179699270,3rtkit-daemon0-21swapper/023:09:351
179699270,22rtkit-daemon2817110-21cyclictest23:48:261
179699260,22rtkit-daemon854-21ntpd19:59:291
281711799252,16cyclictest2898156-21apt-get21:55:141
281711799242,16cyclictest2822138-21apt-get19:20:141
2817117992411,7cyclictest66950irq/132-enp2s000:25:151
281711799240,6cyclictest0-21swapper/122:46:041
281711799240,6cyclictest0-21swapper/119:48:591
179699240,4rtkit-daemon2845464-1kworker/1:3H20:45:551
281711799232,14cyclictest2865212-21apt-get21:10:151
281711799231,19cyclictest2864939-21diskmemload00:21:391
281711799230,7cyclictest0-21swapper/119:30:101
281711799230,6cyclictest0-21swapper/121:23:311
281711799230,6cyclictest0-21swapper/120:06:411
281711799225,16cyclictest2986161-21latency_hist00:00:011
281711799223,11cyclictest2919764-21apt-get22:25:151
2817117992214,6cyclictest2979546-21fschecks_time23:50:161
281711799220,5cyclictest2972382-21seq23:40:171
2817117992114,5cyclictest2859086-21systemd-run20:54:591
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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