You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-03-23 - 00:17

x86 Intel Atom Z530 @1600 MHz, Linux 3.12.61-rt81 (Profile)

Latency plot of system in rack #1, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 100, highest latencies:
System rack1slot8.osadl.org (updated Wed Mar 22, 2023 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1223699848786,54cyclictest0-21swapper/008:45:190
1223799733697,22cyclictest12078-21strings08:45:181
119512605584,15sleep10-21swapper/107:07:311
117542573550,16sleep00-21swapper/007:05:330
1223799466394,62cyclictest0-21swapper/107:10:111
1877421060,5sleep118776-21ntp_kernel_pll_09:05:211
211999830,4rtkit-daemon2118-21rtkit-daemon07:38:371
211999820,5rtkit-daemon2118-21rtkit-daemon08:20:281
211999810,4rtkit-daemon2118-21rtkit-daemon11:20:461
211999800,4rtkit-daemon2118-21rtkit-daemon09:17:231
211999790,9rtkit-daemon0-21swapper/012:24:120
211999790,4rtkit-daemon2118-21rtkit-daemon11:46:511
1223699795,57cyclictest0-21swapper/012:15:010
211999780,4rtkit-daemon2118-21rtkit-daemon11:55:211
211999780,4rtkit-daemon2118-21rtkit-daemon11:28:151
211999780,4rtkit-daemon2118-21rtkit-daemon10:08:381
211999770,4rtkit-daemon2118-21rtkit-daemon12:25:421
211999770,4rtkit-daemon2118-21rtkit-daemon09:53:141
1223699762,67cyclictest8253-21munin-node08:35:290
12236997520,35cyclictest79450irq/46-eth0-tx-11:45:270
211999740,5rtkit-daemon2118-21rtkit-daemon11:06:061
12236997438,29cyclictest0-21swapper/010:48:270
12236997426,31cyclictest8250irq/14-pata_sch07:50:010
12236997322,45cyclictest79450irq/46-eth0-tx-10:00:130
1223699732,63cyclictest26290-21hwlatdetect09:20:240
1223699732,63cyclictest23001-21kernelversion11:00:210
211999720,5rtkit-daemon2118-21rtkit-daemon09:22:521
1223699723,62cyclictest19708-21diskmemload11:34:510
1223699723,53cyclictest7038-21ssh09:40:320
1223699722,63cyclictest19708-21diskmemload10:44:490
1223699722,34cyclictest1011-21ssh10:25:020
211999710,4rtkit-daemon2118-21rtkit-daemon12:14:271
12236997112,40cyclictest0-21swapper/010:10:000
12236997047,16cyclictest0-21swapper/011:55:240
1223699702,62cyclictest16610-21sshd09:56:260
211999690,4rtkit-daemon2118-21rtkit-daemon10:57:511
211999690,4rtkit-daemon2118-21rtkit-daemon09:46:580
1223699696,56cyclictest0-21swapper/008:25:240
12236996949,13cyclictest0-21swapper/007:35:070
1223699692,60cyclictest1289-21sh09:31:410
1223699692,60cyclictest1289-21sh09:31:400
1223699686,55cyclictest0-21swapper/007:55:000
12236996846,16cyclictest0-21swapper/011:55:010
12236996831,30cyclictest0-21swapper/011:10:210
12236996831,30cyclictest0-21swapper/011:10:210
1223699683,57cyclictest2946-21sh11:20:240
1223699683,49cyclictest2154-17auditd11:00:000
1223699683,31cyclictest25749-21idleruntime-cro09:20:010
1223699682,59cyclictest29575-21ssh10:18:160
1223699682,36cyclictest316-21latency_hist12:10:010
12236996817,45cyclictest79450irq/46-eth0-tx-11:19:150
1223699677,53cyclictest0-21swapper/011:43:480
12236996745,16cyclictest0-21swapper/012:01:100
12236996745,15cyclictest0-21swapper/012:25:190
1223699673,49cyclictest17842-21ssh10:51:210
1223699672,58cyclictest15249-21runrttasks07:17:170
12236996719,33cyclictest0-21swapper/012:17:210
62112666,16sleep10-21swapper/112:19:081
1223699665,50cyclictest0-21swapper/008:20:230
1223699663,55cyclictest12358-21ssh11:35:300
1223699663,31cyclictest27022-21ksmtuned11:06:080
1223699662,58cyclictest19708-21diskmemload09:52:030
1223699662,47cyclictest19715-21idleruntime-cro09:09:590
12236996610,41cyclictest14726-21latency_hist08:55:010
211999650,4rtkit-daemon2118-21rtkit-daemon10:36:290
211999650,4rtkit-daemon2118-21rtkit-daemon07:28:320
211999650,4rtkit-daemon2118-21rtkit-daemon07:13:470
1223699653,41cyclictest6598-21munin-node08:30:220
1223699653,34cyclictest15698-21idleruntime-cro12:35:010
12236996520,39cyclictest79450irq/46-eth0-tx-09:37:110
1223699652,49cyclictest30464-21ssh09:26:240
1223699652,42cyclictest19862-21ssh09:10:050
1223699652,41cyclictest1442-21runrttasks07:21:250
211999640,4rtkit-daemon2118-21rtkit-daemon11:25:460
211999640,4rtkit-daemon2118-21rtkit-daemon10:28:140
211999640,4rtkit-daemon2118-21rtkit-daemon10:10:290
211999640,4rtkit-daemon2118-21rtkit-daemon09:00:430
211999640,4rtkit-daemon2118-21rtkit-daemon09:00:420
211999640,4rtkit-daemon2118-21rtkit-daemon08:59:580
211999640,4rtkit-daemon2118-21rtkit-daemon08:41:370
211999640,4rtkit-daemon2118-21rtkit-daemon08:07:270
211999640,4rtkit-daemon2118-21rtkit-daemon08:02:210
211999640,4rtkit-daemon2118-21rtkit-daemon07:56:320
211999640,4rtkit-daemon2118-21rtkit-daemon07:43:120
211999640,4rtkit-daemon2118-21rtkit-daemon07:30:510
1223699642,55cyclictest629-21switchtime08:10:240
211999630,4rtkit-daemon2118-21rtkit-daemon08:17:020
12236996341,16cyclictest0-21swapper/010:30:170
1223699633,54cyclictest18853-21kworker/0:212:35:250
316022615,16sleep10-21swapper/112:06:531
146202574,12sleep10-21swapper/108:54:011
286412564,12sleep10-21swapper/107:58:181
254012564,11sleep10-21swapper/107:48:541
29512554,12sleep10-21swapper/108:18:151
257692555,15sleep10-21swapper/110:11:181
24752554,12sleep10-21swapper/110:25:581
234322554,12sleep10-21swapper/107:40:451
96002544,12sleep10-21swapper/108:38:341
51592544,11sleep10-21swapper/109:38:391
313272545,15sleep10-21swapper/109:28:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional