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2025-12-03 - 05:36
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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 03, 2025 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25406442262183,29sleep00-21swapper/019:06:130
25406442262183,29sleep00-21swapper/019:06:130
25407042247179,52sleep10-21swapper/119:06:501
25407042247179,52sleep10-21swapper/119:06:491
125899690,4rtkit-daemon1257-21rtkit-daemon20:08:300
254112699622,5cyclictest2697590-40apt-check23:40:151
254112199590,9cyclictest2733962-21ssh00:30:380
125899590,4rtkit-daemon1257-21rtkit-daemon20:27:260
2541126995711,27cyclictest2703894-21sh23:48:281
254112199573,35cyclictest2712151-21apt-get00:00:140
125899570,4rtkit-daemon1257-21rtkit-daemon23:57:340
254112699562,6cyclictest2643596-21apt-get22:25:131
125899560,4rtkit-daemon1257-21rtkit-daemon00:38:030
125899560,4rtkit-daemon1257-21rtkit-daemon00:15:420
254112699551,5cyclictest2604292-21apt-get21:30:141
125899550,4rtkit-daemon1257-21rtkit-daemon23:16:020
254112699542,5cyclictest2665590-21apt-get22:55:131
254112699542,4cyclictest2735955-21apt-get00:35:141
254112199540,1cyclictest2589145-21diskmemload00:21:220
125899540,4rtkit-daemon1257-21rtkit-daemon19:52:100
125899540,3rtkit-daemon1257-21rtkit-daemon23:51:260
254112699532,6cyclictest2622315-21apt-get21:55:141
254112699532,6cyclictest2622315-21apt-get21:55:141
254112699531,5cyclictest2686666-21apt-get23:25:121
2541121995311,21cyclictest828-21runrttasks23:36:390
254112199530,1cyclictest2589145-21diskmemload21:26:490
254112699522,6cyclictest2625965-21apt-get22:00:131
254112699522,5cyclictest2725402-21apt-get00:20:141
254112699522,5cyclictest2629348-21apt-get22:05:131
254112699521,5cyclictest2615068-21apt-get21:45:151
254112699521,5cyclictest2593152-21apt-get21:15:141
254112199522,26cyclictest2683176-21apt-get23:20:120
254112199521,34cyclictest2672559-21apt-get23:05:140
254112199521,33cyclictest2581515-21apt-get20:50:160
254112199521,33cyclictest2545555-21apt-get19:20:300
254112199520,4cyclictest828-21runrttasks21:50:010
254112199520,2cyclictest2587050-21taskset21:03:410
26875262510,7sleep00-21swapper/023:25:210
254112699511,9cyclictest2729228-21diskstats00:25:181
254112199511,34cyclictest2647121-21apt-get22:30:130
254112199511,33cyclictest2640132-21apt-get22:20:140
254112199511,33cyclictest2567798-21apt-get20:15:160
254112199510,3cyclictest2615885-21ntp_states21:45:210
125899510,3rtkit-daemon0-21swapper/000:26:160
254112699504,4cyclictest2541117-21cyclictest21:10:141
254112699501,9cyclictest2585264-21munin-run21:00:001
254112699501,9cyclictest2550013-21munin-run19:29:591
254112699501,6cyclictest2597202-40apt-check21:20:151
254112199508,25cyclictest2608454-21cat21:35:190
254112199502,22cyclictest2589145-21diskmemload22:38:230
254112199501,32cyclictest2662002-21apt-get22:50:140
254112199501,32cyclictest2559968-21apt-get19:55:150
2541121995011,18cyclictest2667828-21sh22:57:350
254112699491,9cyclictest2680536-21ntp_states23:15:211
254112699491,5cyclictest2690265-21apt-get23:30:161
254112699491,11cyclictest2619722-21awk21:50:251
254112199498,23cyclictest2594735-21seq21:15:530
254112199491,31cyclictest2543787-21apt-get19:15:140
254112199491,29cyclictest2625622-21systemd-udevd21:59:560
254112199491,29cyclictest2625622-21systemd-udevd21:59:560
2541121994911,26cyclictest2699181-21sh23:40:450
125899490,4rtkit-daemon1257-21rtkit-daemon21:10:010
254112699480,9cyclictest2732747-21df00:30:151
254112199481,33cyclictest2720286-21ssh00:10:380
254112199481,31cyclictest2597337-40apt-check21:20:160
254112199481,31cyclictest2556065-21apt-get19:45:130
254112199481,30cyclictest2552142-21apt-get19:35:160
2541121994810,26cyclictest0-21swapper/022:26:450
254112199480,3cyclictest2692433-21ssh23:32:210
254112199480,2cyclictest2715664-21apt-get00:05:140
25802162470,3sleep12580220-21needreboot20:45:231
25802162470,3sleep12580220-21needreboot20:45:221
254112699472,5cyclictest2589145-21diskmemload23:54:341
254112699471,7cyclictest2589145-21diskmemload23:10:191
254112199471,8cyclictest2613575-21ssh21:41:550
254112199471,32cyclictest2589145-21diskmemload21:31:050
125899470,3rtkit-daemon0-21swapper/022:06:390
254112699461,9cyclictest2669271-21df23:00:161
254112699461,9cyclictest2632878-21apt-get22:10:111
254112699461,8cyclictest2589145-21diskmemload21:39:331
254112699461,7cyclictest2589145-21diskmemload22:41:181
254112699461,6cyclictest2672797-21ssh23:05:171
254112699461,6cyclictest2589145-21diskmemload22:20:081
254112199462,30cyclictest2589145-21diskmemload22:17:450
254112199461,3cyclictest2658465-21apt-get22:45:140
254112699451,7cyclictest2589145-21diskmemload00:03:411
254112699451,6cyclictest2589145-21diskmemload22:49:541
254112699451,5cyclictest2589145-21diskmemload22:50:411
254112199451,7cyclictest2634030-21cat22:10:240
254112199451,30cyclictest2589145-21diskmemload21:10:020
254112199451,24cyclictest2589145-21diskmemload22:01:390
254112199450,32cyclictest2703226-21ssh23:46:520
254112699441,8cyclictest2686436-21munin-run23:25:001
254112699441,6cyclictest2589145-21diskmemload00:13:071
254112199441,30cyclictest2676107-21apt-get23:10:130
254112199440,3cyclictest2631059-1kworker/u9:222:40:090
254112699431,6cyclictest2589145-21diskmemload22:15:251
254112699431,4cyclictest2589145-21diskmemload23:35:121
254112699422,5cyclictest2585440-21apt-get21:00:141
254112699421,6cyclictest2589145-21diskmemload22:31:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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