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2025-09-17 - 10:23
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack1slot8.osadl.org (updated Wed Sep 17, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
758799854735,59cyclictest221rcuc/021:45:270
758899832799,18cyclictest13-21rcu_preempt21:45:271
758899391342,40cyclictest0-21swapper/119:11:311
72192224201,16sleep00-21swapper/019:06:390
75879912210,105cyclictest0-21swapper/021:16:590
75879912210,105cyclictest0-21swapper/021:16:590
7587991079,81cyclictest0-21swapper/019:37:590
75879910385,12cyclictest0-21swapper/022:00:000
75889910213,24cyclictest0-21swapper/122:59:591
216899990,4rtkit-daemon2167-21rtkit-daemon00:36:331
216899980,4rtkit-daemon2167-21rtkit-daemon23:52:071
216899980,4rtkit-daemon2167-21rtkit-daemon21:08:241
216899960,4rtkit-daemon2167-21rtkit-daemon19:28:281
216899930,4rtkit-daemon2167-21rtkit-daemon23:23:421
216899930,4rtkit-daemon2167-21rtkit-daemon22:51:161
216899930,4rtkit-daemon2167-21rtkit-daemon20:05:521
216899930,4rtkit-daemon2167-21rtkit-daemon19:46:281
216899930,4rtkit-daemon2167-21rtkit-daemon19:41:531
216899930,4rtkit-daemon2167-21rtkit-daemon19:38:231
216899930,4rtkit-daemon2167-21rtkit-daemon19:17:081
216899920,4rtkit-daemon2167-21rtkit-daemon22:47:211
216899920,4rtkit-daemon2167-21rtkit-daemon20:44:591
216899920,4rtkit-daemon2167-21rtkit-daemon20:02:481
216899920,3rtkit-daemon2167-21rtkit-daemon21:28:051
216899910,4rtkit-daemon2167-21rtkit-daemon22:35:511
216899910,4rtkit-daemon2167-21rtkit-daemon22:05:401
216899910,4rtkit-daemon2167-21rtkit-daemon21:37:451
216899910,4rtkit-daemon2167-21rtkit-daemon21:14:141
216899910,4rtkit-daemon2167-21rtkit-daemon20:54:291
216899910,4rtkit-daemon2167-21rtkit-daemon20:26:491
216899910,4rtkit-daemon2167-21rtkit-daemon19:58:021
216899910,3rtkit-daemon2167-21rtkit-daemon23:34:221
216899900,4rtkit-daemon2167-21rtkit-daemon21:56:501
216899900,4rtkit-daemon2167-21rtkit-daemon20:21:441
216899890,4rtkit-daemon2167-21rtkit-daemon00:34:081
7587998875,8cyclictest0-21swapper/019:57:000
216899850,4rtkit-daemon2167-21rtkit-daemon21:42:201
7587998311,53cyclictest0-21swapper/000:00:000
7587998211,57cyclictest0-21swapper/021:25:000
758799818,54cyclictest0-21swapper/023:19:070
216899790,4rtkit-daemon2167-21rtkit-daemon23:42:271
216899790,4rtkit-daemon2167-21rtkit-daemon22:06:250
216899790,3rtkit-daemon2167-21rtkit-daemon22:30:250
216899770,4rtkit-daemon2167-21rtkit-daemon23:56:221
216899770,4rtkit-daemon2167-21rtkit-daemon23:45:021
216899770,4rtkit-daemon2167-21rtkit-daemon23:12:561
722327635,29sleep10-21swapper/119:06:421
7587997522,38cyclictest0-21swapper/020:56:000
216899750,32rtkit-daemon2167-21rtkit-daemon23:39:521
758799742,61cyclictest18597-21diskmemload23:25:130
758799742,6cyclictest18597-21diskmemload21:12:360
758799742,43cyclictest31388-21munin-node00:20:270
216899740,4rtkit-daemon2167-21rtkit-daemon20:42:040
216899740,4rtkit-daemon2167-21rtkit-daemon00:08:331
216899740,35rtkit-daemon2167-21rtkit-daemon00:27:181
758799735,62cyclictest0-21swapper/000:35:180
7587997349,18cyclictest0-21swapper/000:19:000
758799734,60cyclictest25064-21munin-node00:10:170
758799732,55cyclictest15699-21latency_hist23:55:010
216899730,4rtkit-daemon2167-21rtkit-daemon22:27:011
216899730,4rtkit-daemon2167-21rtkit-daemon22:20:250
216899730,4rtkit-daemon2167-21rtkit-daemon21:21:441
216899730,4rtkit-daemon2167-21rtkit-daemon21:15:341
216899730,4rtkit-daemon2167-21rtkit-daemon21:15:341
216899730,4rtkit-daemon2167-21rtkit-daemon19:10:370
216899730,35rtkit-daemon2167-21rtkit-daemon20:34:341
758799723,61cyclictest19560-21head23:05:100
7587997214,31cyclictest5441-21df_abs22:40:140
216899720,4rtkit-daemon2167-21rtkit-daemon23:02:511
216899720,4rtkit-daemon2167-21rtkit-daemon00:01:021
216899720,34rtkit-daemon2167-21rtkit-daemon20:17:521
216899720,33rtkit-daemon2167-21rtkit-daemon20:12:581
758799715,54cyclictest0-21swapper/020:35:010
758799713,37cyclictest1657-21ssh00:25:220
7587997124,31cyclictest8250irq/14-pata_sch20:30:010
758799712,6cyclictest24429-21latency_hist00:10:010
7587997114,39cyclictest78950irq/46-eth0-tx-23:36:200
216899710,4rtkit-daemon2167-21rtkit-daemon23:02:050
758799705,58cyclictest78950irq/46-eth0-tx-21:54:390
758799702,61cyclictest20790-21ssh22:10:140
758799702,6cyclictest7272-21kworker/0:022:04:050
758799702,53cyclictest29358-21latency_hist20:10:020
216899700,4rtkit-daemon2167-21rtkit-daemon19:32:231
216899700,4rtkit-daemon2167-21rtkit-daemon19:30:180
758799696,57cyclictest0-21swapper/022:25:250
758799693,59cyclictest23135-21munin-node22:15:190
758799693,58cyclictest22965-21munin-node23:10:200
758799693,46cyclictest29201-21ssh21:26:310
758799692,7cyclictest18596-21idleruntime-cro21:10:010
758799692,7cyclictest11365-21crond20:50:010
758799692,59cyclictest4527-21ssh22:38:400
216899690,4rtkit-daemon2167-21rtkit-daemon00:20:481
216899690,32rtkit-daemon2167-21rtkit-daemon20:47:231
758799682,58cyclictest18597-21diskmemload00:03:520
758799682,37cyclictest3146-21ssh21:37:170
758799682,37cyclictest11182-21crond19:20:010
7587996812,49cyclictest29335-21ssh23:20:280
216899680,29rtkit-daemon2167-21rtkit-daemon23:15:021
758899677,53cyclictest22299-21ssh22:12:591
758799677,43cyclictest0-21swapper/023:45:130
758799675,56cyclictest0-21swapper/000:33:050
758799675,55cyclictest0-21swapper/023:32:560
758799675,55cyclictest0-21swapper/019:45:020
758799673,57cyclictest25761-21munin-node20:00:230
758799672,6cyclictest16478-21latency_hist23:00:010
758799672,6cyclictest10295-21ssh22:48:380
758799672,58cyclictest7277-21munin-node23:40:280
7587996715,35cyclictest0-21swapper/019:52:590
758799662,6cyclictest32304-21ssh21:31:480
758799662,58cyclictest31190-21munin-node20:15:270
758799662,49cyclictest12100-21ssh22:50:260
216899660,4rtkit-daemon2167-21rtkit-daemon20:57:341
216899660,4rtkit-daemon2167-21rtkit-daemon20:37:231
758799652,35cyclictest21235-21mailstats19:45:240
216899650,4rtkit-daemon2167-21rtkit-daemon23:05:061
216899650,4rtkit-daemon2167-21rtkit-daemon22:44:411
216899650,4rtkit-daemon2167-21rtkit-daemon22:20:051
216899650,4rtkit-daemon2167-21rtkit-daemon22:17:301
216899650,4rtkit-daemon2167-21rtkit-daemon22:02:401
216899650,4rtkit-daemon2167-21rtkit-daemon21:31:151
216899650,4rtkit-daemon2167-21rtkit-daemon19:50:281
216899650,4rtkit-daemon2167-21rtkit-daemon19:21:331
216899650,4rtkit-daemon2167-21rtkit-daemon00:19:221
216899650,4rtkit-daemon2167-21rtkit-daemon00:12:081
758799644,54cyclictest0-21swapper/020:50:180
216899640,4rtkit-daemon2167-21rtkit-daemon23:28:221
216899640,4rtkit-daemon2167-21rtkit-daemon21:50:451
216899640,4rtkit-daemon2167-21rtkit-daemon21:01:391
216899640,3rtkit-daemon2167-21rtkit-daemon22:33:311
758799632,55cyclictest14220-21grep19:25:240
758799632,54cyclictest18597-21diskmemload21:40:310
758799623,52cyclictest15368-21munin-node21:00:170
758799622,6cyclictest11857-21iostat19:20:170
758799612,53cyclictest6339-21sort20:35:130
7587996115,31cyclictest31032-21latency_hist20:15:010
758799602,6cyclictest523-21chrt20:20:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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