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2025-09-17 - 18:49
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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 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4772649627,15sleep00-21swapper/007:05:250
138599503397,75cyclictest0-21swapper/007:10:210
138599497424,67cyclictest0-21swapper/011:12:190
138699426313,84cyclictest2233-21strings07:10:211
138699422365,28cyclictest0-21swapper/111:12:191
11062205186,13sleep10-21swapper/107:07:511
1386999314,66cyclictest0-21swapper/109:06:001
204372910,4sleep0221rcuc/012:08:230
1386998812,60cyclictest0-21swapper/108:56:001
216899820,4rtkit-daemon2167-21rtkit-daemon07:15:141
1385997960,15cyclictest0-21swapper/011:51:590
208972770,4sleep015-21rcuop/110:17:490
216899760,3rtkit-daemon2167-21rtkit-daemon11:42:341
138699768,48cyclictest0-21swapper/110:53:591
1385997530,38cyclictest78950irq/46-eth0-tx-12:21:530
138599752,57cyclictest5772-21ssh11:42:570
138599742,47cyclictest27062-21ssh10:28:560
1385997415,52cyclictest78950irq/46-eth0-tx-11:36:190
1385997415,52cyclictest78950irq/46-eth0-tx-11:36:190
1385997316,51cyclictest78950irq/46-eth0-tx-10:49:040
1385997313,55cyclictest0-21swapper/009:59:590
1385997243,23cyclictest0-21swapper/011:08:070
1385997214,51cyclictest78950irq/46-eth0-tx-10:35:100
1386997115,35cyclictest0-21swapper/112:34:591
1385997143,22cyclictest0-21swapper/010:40:270
138599713,53cyclictest16201-21netstat09:15:210
1385997113,51cyclictest23201-21ssh10:20:550
1386997013,39cyclictest0-21swapper/109:42:001
1386997013,39cyclictest0-21swapper/109:42:001
138599702,62cyclictest7496-21interrupts07:25:190
138599702,61cyclictest3326-21basename12:35:130
138599702,60cyclictest10620-21gltestperf10:00:170
138599702,46cyclictest17800-21munin-node07:55:130
227802690,4sleep022783-21unixbench_singl09:25:270
138599693,59cyclictest9325-21ssh10:53:550
138599693,58cyclictest7272-21munin-node11:45:190
138599693,58cyclictest3288-21ssh09:47:100
138599693,41cyclictest9188-21grep07:30:180
1385996921,41cyclictest78950irq/46-eth0-tx-09:44:200
1385996921,41cyclictest78950irq/46-eth0-tx-09:44:200
138599692,60cyclictest14991-21ssh09:14:170
138599692,59cyclictest31135-21ssh12:25:410
138599692,59cyclictest25580-21ssh09:30:250
138599692,54cyclictest6909-21ssh09:54:280
216899680,8rtkit-daemon0-21swapper/012:12:490
138599685,56cyclictest0-21swapper/008:15:010
138599683,58cyclictest29544-21ssh11:28:220
138599682,57cyclictest10634-21latency_hist09:05:010
1385996818,37cyclictest78950irq/46-eth0-tx-12:16:400
1385996816,37cyclictest78950irq/46-eth0-tx-11:33:160
169822670,4sleep00-21swapper/010:10:250
169822670,4sleep00-21swapper/010:10:250
1386996711,38cyclictest0-21swapper/107:41:591
138599677,40cyclictest0-21swapper/011:20:200
138599673,41cyclictest29596-21ssh10:32:470
138599672,59cyclictest28592-21latency_hist08:25:010
138599672,55cyclictest4185-21missed_timers08:45:190
138599672,53cyclictest20633-21ssh09:22:540
138599672,49cyclictest2405-21ssh12:32:510
1385996717,36cyclictest78950irq/46-eth0-tx-12:03:310
1385996714,38cyclictest78950irq/46-eth0-tx-11:03:060
1386996612,37cyclictest0-21swapper/108:43:591
138599666,53cyclictest0-21swapper/010:56:160
138599663,56cyclictest11695-21munin-node07:35:250
138599663,38cyclictest12675-21ssh11:55:140
138599662,41cyclictest28510-21munin-node09:35:210
1386996519,30cyclictest0-21swapper/110:01:591
1386996517,32cyclictest0-21swapper/110:11:001
1386996517,32cyclictest0-21swapper/110:11:001
1386996514,36cyclictest0-21swapper/110:29:591
1386996514,33cyclictest0-21swapper/108:14:591
1385996532,25cyclictest0-21swapper/007:45:190
1385996526,32cyclictest0-21swapper/007:24:000
1385996526,31cyclictest78950irq/46-eth0-tx-08:10:170
138599652,56cyclictest1786-21aten_r1power_fr08:40:170
138599652,47cyclictest15833-21sadc10:10:010
1385996519,39cyclictest78950irq/46-eth0-tx-11:19:010
216899640,4rtkit-daemon2167-21rtkit-daemon09:07:310
216899640,4rtkit-daemon2167-21rtkit-daemon08:52:450
216899640,4rtkit-daemon2167-21rtkit-daemon07:43:590
1386996439,17cyclictest0-21swapper/112:08:001
138599643,54cyclictest3376-21munin-node07:15:230
138599643,34cyclictest21262-21crond08:05:000
1385996416,42cyclictest21419-21munin-node08:05:280
1386996315,32cyclictest0-21swapper/107:38:001
138599632,54cyclictest30390-21latency_hist08:30:010
216899620,11rtkit-daemon0-21swapper/008:34:050
1386996214,34cyclictest0-21swapper/107:29:001
1386996214,32cyclictest0-21swapper/108:17:591
1386996214,30cyclictest0-21swapper/108:26:001
1386996212,33cyclictest0-21swapper/111:29:001
216899610,9rtkit-daemon0-21swapper/008:55:150
216899610,8rtkit-daemon0-21swapper/007:50:350
216899610,10rtkit-daemon0-21swapper/008:35:500
1386996115,29cyclictest0-21swapper/108:37:591
1386996115,28cyclictest0-21swapper/109:20:591
1386996114,33cyclictest0-21swapper/108:49:001
1386996114,32cyclictest0-21swapper/109:59:591
1386996112,36cyclictest0-21swapper/109:14:591
1386996015,32cyclictest0-21swapper/107:46:591
1386996013,33cyclictest0-21swapper/107:54:001
1386995914,32cyclictest0-21swapper/108:20:591
1386995914,29cyclictest0-21swapper/110:37:591
1386995913,31cyclictest0-21swapper/111:05:001
1386995913,30cyclictest0-21swapper/111:21:591
1386995910,35cyclictest0-21swapper/108:51:591
1386995825,21cyclictest0-21swapper/112:23:591
1386995816,30cyclictest0-21swapper/109:28:001
1386995814,29cyclictest0-21swapper/108:05:591
1386995812,33cyclictest0-21swapper/111:07:001
299532574,12sleep10-21swapper/109:38:191
237932574,12sleep10-21swapper/110:22:481
1386995716,28cyclictest0-21swapper/110:08:591
1386995715,30cyclictest0-21swapper/108:33:001
1386995715,29cyclictest0-21swapper/107:57:001
1386995616,30cyclictest0-21swapper/110:58:001
1386995614,29cyclictest0-21swapper/112:13:591
1386995612,31cyclictest0-21swapper/109:48:001
1386995611,30cyclictest0-21swapper/109:01:591
106732560,3sleep110671-21grep11:50:291
48022554,12sleep10-21swapper/112:36:181
316312556,15sleep10-21swapper/112:27:171
266812554,13sleep10-21swapper/112:19:521
169202554,11sleep10-21swapper/112:01:301
138699558,32cyclictest0-21swapper/107:24:001
1386995515,27cyclictest0-21swapper/110:18:591
1386995513,32cyclictest0-21swapper/109:19:001
1386995513,31cyclictest0-21swapper/108:02:591
1386995512,31cyclictest0-21swapper/110:47:591
35372545,15sleep10-21swapper/110:44:051
1386995414,30cyclictest0-21swapper/111:56:591
1386995411,32cyclictest0-21swapper/111:16:591
216899530,4rtkit-daemon2167-21rtkit-daemon09:52:461
1386995312,29cyclictest0-21swapper/107:34:591
216899520,3rtkit-daemon2167-21rtkit-daemon11:39:541
216899520,3rtkit-daemon2167-21rtkit-daemon11:39:541
1386995213,31cyclictest0-21swapper/111:47:001
1386995213,28cyclictest0-21swapper/109:31:001
138699516,38cyclictest0-21swapper/110:30:151
216899500,4rtkit-daemon2167-21rtkit-daemon11:31:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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