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2022-08-19 - 14:13

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 Fri Aug 19, 2022 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
125992777743,27sleep00-21swapper/007:05:060
140382571552,12sleep10-21swapper/107:09:151
14142995314,11cyclictest0-21swapper/107:11:051
1414199516436,71cyclictest0-21swapper/007:11:050
1414299398320,47cyclictest0-21swapper/108:06:191
1414199367287,52cyclictest0-21swapper/008:06:190
211999940,10rtkit-daemon0-21swapper/107:23:571
1414299918,15cyclictest27308-21yumBackend.py07:49:221
145052890,4sleep014508-21ls10:45:320
1414299866,21cyclictest0-21swapper/108:44:521
14142997917,8cyclictest26521-21munin-node12:00:201
14142997915,16cyclictest0-21swapper/110:35:451
177462780,3sleep017747-21sh10:50:340
1414299786,29cyclictest0-21swapper/107:15:211
14142997817,17cyclictest0-21swapper/109:36:491
1414299777,18cyclictest0-21swapper/112:24:471
1414299777,18cyclictest0-21swapper/112:24:471
1414299768,18cyclictest0-21swapper/108:50:011
1414299767,19cyclictest0-21swapper/112:30:201
1414299767,19cyclictest0-21swapper/109:11:501
1414299763,22cyclictest27939-21ps07:50:171
14142997615,13cyclictest0-21swapper/109:43:561
14142997611,18cyclictest0-21swapper/109:57:121
1414299756,28cyclictest0-21swapper/107:25:151
1414299756,27cyclictest0-21swapper/112:07:201
1414299756,26cyclictest0-21swapper/110:20:261
1414299756,19cyclictest0-21swapper/111:50:271
1414299756,19cyclictest0-21swapper/110:15:011
1414299756,18cyclictest0-21swapper/111:56:281
1414299756,18cyclictest0-21swapper/108:25:151
1414299755,27cyclictest0-21swapper/110:40:181
1414299755,19cyclictest0-21swapper/111:40:211
14142997517,13cyclictest0-21swapper/111:28:421
14142997515,14cyclictest0-21swapper/109:15:281
14142997513,17cyclictest0-21swapper/111:14:531
14142997512,18cyclictest0-21swapper/110:55:161
1414299748,19cyclictest0-21swapper/108:00:171
1414299748,18cyclictest0-21swapper/111:34:441
1414299748,18cyclictest0-21swapper/110:18:401
1414299747,20cyclictest0-21swapper/111:00:181
1414299747,19cyclictest0-21swapper/110:47:011
1414299747,18cyclictest0-21swapper/111:05:151
1414299747,18cyclictest0-21swapper/109:45:221
1414299746,28cyclictest0-21swapper/112:19:111
1414299746,26cyclictest0-21swapper/111:45:251
1414299746,17cyclictest0-21swapper/109:05:161
14142997414,12cyclictest0-21swapper/112:28:471
14142997413,16cyclictest0-21swapper/110:05:131
14142997412,9cyclictest8250irq/14-pata_sch09:35:011
14142997411,20cyclictest0-21swapper/110:25:291
1414299739,18cyclictest0-21swapper/109:20:241
1414299738,19cyclictest0-21swapper/111:35:241
1414299738,18cyclictest0-21swapper/109:25:211
1414299737,16cyclictest0-21swapper/107:44:431
1414299736,33cyclictest0-21swapper/107:35:201
1414299736,27cyclictest0-21swapper/112:37:291
1414299736,26cyclictest0-21swapper/111:18:591
1414299736,26cyclictest0-21swapper/111:18:591
1414299736,19cyclictest0-21swapper/110:30:151
1414299736,19cyclictest0-21swapper/109:50:311
1414299736,19cyclictest0-21swapper/108:10:221
1414299736,16cyclictest0-21swapper/108:55:211
1414299735,27cyclictest0-21swapper/110:01:271
1414299735,25cyclictest0-21swapper/110:50:321
14142997310,17cyclictest0-21swapper/111:20:181
1414199732,65cyclictest5307-21df_abs11:25:150
1414299728,21cyclictest0-21swapper/107:34:221
1414299728,18cyclictest0-21swapper/108:30:021
1414299727,19cyclictest0-21swapper/108:50:201
1414299727,19cyclictest0-21swapper/108:36:231
1414299727,18cyclictest0-21swapper/107:55:211
1414299727,17cyclictest0-21swapper/108:20:161
1414299725,26cyclictest0-21swapper/112:10:141
1414199722,62cyclictest31915-21hwlatdetect11:15:290
1414199722,62cyclictest31915-21hwlatdetect11:15:290
211999710,4rtkit-daemon2118-21rtkit-daemon12:20:340
211999710,4rtkit-daemon2118-21rtkit-daemon12:20:330
211999710,4rtkit-daemon2118-21rtkit-daemon12:07:480
1414299716,28cyclictest0-21swapper/109:00:121
1414299715,20cyclictest0-21swapper/108:20:011
14141997043,21cyclictest0-21swapper/012:28:200
14141997039,25cyclictest0-21swapper/010:30:150
1414199703,33cyclictest746-21lldpad12:15:150
1414199692,43cyclictest13257-21yumBackend.py08:44:270
1414199682,60cyclictest27423-21sh07:50:010
1414199682,60cyclictest16851-21latency_hist11:45:010
1414199682,60cyclictest1527-21latency_hist10:25:010
1414199682,50cyclictest17445-21munin-run07:20:010
14141996739,21cyclictest0-21swapper/010:03:250
14141996738,23cyclictest0-21swapper/009:25:240
1414199673,33cyclictest28383-21ssh11:10:010
14141996636,24cyclictest0-21swapper/011:50:180
14141996635,25cyclictest0-21swapper/010:16:170
1414199663,57cyclictest2461-21tail11:20:170
1414199663,38cyclictest17470-21ssh11:45:190
14141996544,15cyclictest0-21swapper/007:55:270
14141996543,16cyclictest0-21swapper/010:05:130
14141996542,16cyclictest0-21swapper/008:50:380
1414199653,56cyclictest1573-21wc09:30:150
1414199653,33cyclictest17215-21munin-run12:40:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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