You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-20 - 00:16

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #0, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 100 highest latencies:
System rack0slot4s.osadl.org (updated Wed Nov 19, 2025 00:46:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14988452407386,14sleep40-21swapper/419:06:5210
14990362370326,15sleep150-21swapper/1519:09:297
14990352361353,5sleep140-21swapper/1419:09:286
14989202358315,14sleep00-21swapper/019:07:520
14987852355316,14sleep50-21swapper/519:06:0511
14990502353309,15sleep120-21swapper/1219:09:414
14988652353330,15sleep70-21swapper/719:07:1213
14990192350328,14sleep60-21swapper/619:09:2012
14990042349328,14sleep80-21swapper/819:09:0614
14990512348325,15sleep130-21swapper/1319:09:425
14989052348327,14sleep20-21swapper/219:07:398
14956232348307,34sleep10-21swapper/119:05:131
14989312347325,15sleep110-21swapper/1119:08:053
14990062346324,15sleep100-21swapper/1019:09:082
14990052346325,14sleep90-21swapper/919:09:0615
14989062344324,13sleep30-21swapper/319:07:409
149953199447,24cyclictest0-21swapper/519:46:1311
149953199446,25cyclictest0-21swapper/523:36:5211
149953199446,25cyclictest0-21swapper/522:52:5511
149953199446,25cyclictest0-21swapper/521:14:0511
149953199446,25cyclictest0-21swapper/521:14:0511
149953199446,25cyclictest0-21swapper/520:41:0811
149953199446,25cyclictest0-21swapper/519:13:1511
149953199413,25cyclictest0-21swapper/523:03:5511
1499553993333,0cyclictest0-21swapper/1122:57:533
1499553993333,0cyclictest0-21swapper/1122:48:173
149955399320,29cyclictest124-21ksoftirqd/1100:00:163
149953199327,25cyclictest0-21swapper/500:20:4811
149956699310,30cyclictest0-21swapper/1522:25:577
149956199310,30cyclictest0-21swapper/1319:57:565
1499557993130,1cyclictest2395797-21snmpd21:53:414
1499557993129,1cyclictest1586000-21ethtool20:50:184
149955799310,30cyclictest0-21swapper/1223:16:214
149955799310,30cyclictest0-21swapper/1222:43:194
149955799310,30cyclictest0-21swapper/1219:44:044
149955799310,30cyclictest0-21swapper/1219:33:424
1499553993131,0cyclictest0-21swapper/1122:33:393
149955399310,31cyclictest1255703-21kworker/11:2+mm_percpu_wq20:25:483
149954399310,30cyclictest0-21swapper/920:15:2015
149954399310,30cyclictest0-21swapper/900:34:5115
149954399310,30cyclictest0-21swapper/900:00:1115
1499536993130,1cyclictest2395797-21snmpd22:51:1312
149953699310,30cyclictest0-21swapper/620:58:3012
149953199317,13cyclictest0-21swapper/523:14:5411
149953199316,25cyclictest0-21swapper/523:58:5011
149953199316,25cyclictest0-21swapper/522:30:5811
149953199316,25cyclictest0-21swapper/522:19:5911
149953199316,25cyclictest0-21swapper/521:47:0211
149953199316,25cyclictest0-21swapper/520:52:0711
149953199316,25cyclictest0-21swapper/520:30:0911
149953199316,25cyclictest0-21swapper/519:35:1411
149953199316,25cyclictest0-21swapper/500:09:4811
149953199316,25cyclictest0-21swapper/500:09:4811
1499531993130,1cyclictest1604485-21kworker/u32:2+flush-259:021:20:1911
149953199310,30cyclictest0-21swapper/520:14:5611
1499528993130,1cyclictest1504502-21kworker/4:0+events20:00:2510
149952899310,30cyclictest0-21swapper/421:05:1010
149952699310,30cyclictest0-21swapper/319:56:379
149952199310,30cyclictest0-21swapper/200:11:158
149952199310,30cyclictest0-21swapper/200:11:158
149951999310,30cyclictest0-21swapper/119:20:191
149951699310,30cyclictest0-21swapper/021:52:380
149956699300,1cyclictest0-21swapper/1521:33:387
1499561993029,1cyclictest2395797-21snmpd23:58:445
1499561993029,1cyclictest2395797-21snmpd23:20:165
1499561993029,1cyclictest2395797-21snmpd22:03:275
1499561993029,1cyclictest2395797-21snmpd20:55:555
1499561993029,1cyclictest2395797-21snmpd20:19:385
149956199300,1cyclictest0-21swapper/1323:30:165
149955799300,29cyclictest0-21swapper/1223:28:224
1499553993030,0cyclictest0-21swapper/1119:38:233
1499553993029,1cyclictest2395797-21snmpd20:47:393
1499553993029,1cyclictest2395797-21snmpd20:16:433
149955399300,1cyclictest0-21swapper/1120:04:583
1499548993029,1cyclictest2395797-21snmpd21:49:432
1499548993029,1cyclictest2395797-21snmpd20:41:472
149954899300,1cyclictest0-21swapper/1022:19:392
149954399300,30cyclictest0-21swapper/921:27:1715
149954399300,30cyclictest0-21swapper/919:48:2915
149954399300,1cyclictest0-21swapper/921:35:5015
1499541993029,1cyclictest2395797-21snmpd22:55:3414
149954199300,29cyclictest0-21swapper/819:23:1214
149954199300,29cyclictest0-21swapper/800:28:1514
1499538993029,1cyclictest2395797-21snmpd00:38:4213
1499536993029,1cyclictest2395797-21snmpd20:31:2012
1499536993029,1cyclictest2395797-21snmpd19:35:1912
149953199305,25cyclictest0-21swapper/519:24:1511
1499531993029,1cyclictest2395797-21snmpd23:44:5311
149953199300,30cyclictest0-21swapper/523:26:3811
149953199300,29cyclictest0-21swapper/520:55:1011
149953199300,1cyclictest0-21swapper/519:31:3111
1499528993029,1cyclictest2395797-21snmpd22:26:1510
1499528993029,1cyclictest1504502-21kworker/4:0+events20:10:2110
1499528993029,1cyclictest1501573-21ethtool19:10:1410
149952899300,30cyclictest0-21swapper/422:50:3310
149952899300,30cyclictest0-21swapper/420:58:5210
1499526993029,1cyclictest1527566-21mii-tool19:40:159
1499526993029,1cyclictest0-21swapper/323:50:599
1499521993029,1cyclictest2395797-21snmpd23:41:298
1499521993029,1cyclictest2395797-21snmpd22:06:248
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional