You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2022-06-30 - 18:56

x86 Intel Core i5-750 @2667 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #8, slot #3
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
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack8slot3.osadl.org (updated Thu Jun 30, 2022 12:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175002183164,15sleep10-21swapper/107:09:071
171942182108,69sleep30-21swapper/307:05:403
173772176157,15sleep20-21swapper/207:07:482
157472167105,58sleep00-21swapper/007:05:050
62762930,6sleep31782999cyclictest08:00:113
256842900,1sleep00-21swapper/010:50:000
62372880,3sleep20-21swapper/211:40:162
42982880,7sleep30-21swapper/310:25:123
148622870,6sleep30-21swapper/308:20:143
1782899397,31cyclictest0-21swapper/209:50:192
1782899397,31cyclictest0-21swapper/207:15:192
1782899386,31cyclictest0-21swapper/210:55:182
1782899383,34cyclictest0-21swapper/208:30:182
1782899377,29cyclictest0-21swapper/212:10:222
1782799355,29cyclictest0-21swapper/112:10:231
17827993524,11cyclictest0-21swapper/109:58:101
1782899345,28cyclictest0-21swapper/212:25:202
1782799343,30cyclictest0-21swapper/110:31:041
1782799343,30cyclictest0-21swapper/109:28:331
1782899337,25cyclictest0-21swapper/208:15:182
1782799334,28cyclictest0-21swapper/109:50:191
1782799334,28cyclictest0-21swapper/108:30:181
1782799334,28cyclictest0-21swapper/107:15:181
1782799333,29cyclictest0-21swapper/110:29:181
1782799333,29cyclictest0-21swapper/110:00:181
1782899326,25cyclictest0-21swapper/212:05:212
1782899325,26cyclictest0-21swapper/211:50:192
1782899325,26cyclictest0-21swapper/211:35:192
1782899325,26cyclictest0-21swapper/211:25:192
1782899325,26cyclictest0-21swapper/211:00:192
1782799325,26cyclictest0-21swapper/109:22:591
1782799323,28cyclictest0-21swapper/110:55:181
1782799322,29cyclictest0-21swapper/110:44:201
1782899314,26cyclictest0-21swapper/209:40:202
1782899314,26cyclictest0-21swapper/209:20:212
1782899314,26cyclictest0-21swapper/209:10:222
1782799316,24cyclictest0-21swapper/112:00:191
1782799315,25cyclictest0-21swapper/110:20:191
1782899304,25cyclictest0-21swapper/210:20:202
1782799307,22cyclictest0-21swapper/111:59:501
1782799305,24cyclictest0-21swapper/112:07:581
1782799305,24cyclictest0-21swapper/110:38:381
1782799304,25cyclictest0-21swapper/111:50:191
1782799304,25cyclictest0-21swapper/111:35:191
1782799304,25cyclictest0-21swapper/111:25:191
1782799304,25cyclictest0-21swapper/110:50:191
1782799303,26cyclictest0-21swapper/108:25:191
1782799302,27cyclictest0-21swapper/111:30:181
17827993021,8cyclictest0-21swapper/109:19:261
1782899296,22cyclictest0-21swapper/210:00:192
17828992910,18cyclictest0-21swapper/210:16:222
1782799298,21cyclictest0-21swapper/111:48:361
1782799297,21cyclictest0-21swapper/112:29:061
1782799296,22cyclictest0-21swapper/111:15:071
1782799296,22cyclictest0-21swapper/111:12:221
1782799295,23cyclictest0-21swapper/112:30:231
1782799295,23cyclictest0-21swapper/112:18:321
1782799295,23cyclictest0-21swapper/109:31:491
1782799294,24cyclictest0-21swapper/109:36:291
1782799293,25cyclictest0-21swapper/111:40:191
1782799293,25cyclictest0-21swapper/110:15:481
1782799293,25cyclictest0-21swapper/109:40:201
1782799293,25cyclictest0-21swapper/109:10:221
1782899285,22cyclictest0-21swapper/210:11:152
17828992816,11cyclictest0-21swapper/212:37:282
1782799289,18cyclictest0-21swapper/110:10:451
1782799288,20cyclictest0-21swapper/110:49:501
1782799287,20cyclictest0-21swapper/112:38:041
1782799286,21cyclictest0-21swapper/111:24:531
1782799286,21cyclictest0-21swapper/111:05:011
1782799285,22cyclictest0-21swapper/111:01:401
1782799285,22cyclictest0-21swapper/110:05:181
17829992715,11cyclictest217482sleep311:20:443
17829992715,11cyclictest194632sleep307:12:463
17829992715,11cyclictest135272sleep309:59:103
17829992715,11cyclictest113282sleep312:23:403
1782899276,20cyclictest0-21swapper/211:59:122
1782899275,21cyclictest0-21swapper/210:09:522
1782899275,20cyclictest0-21swapper/211:23:522
17827992715,11cyclictest0-21swapper/112:20:141
17827992715,11cyclictest0-21swapper/109:45:461
17827992715,11cyclictest0-21swapper/109:09:031
17827992715,11cyclictest0-21swapper/109:04:141
17827992715,11cyclictest0-21swapper/108:55:231
17827992715,11cyclictest0-21swapper/108:50:191
17827992715,11cyclictest0-21swapper/108:40:111
17827992715,11cyclictest0-21swapper/108:20:191
17827992715,11cyclictest0-21swapper/108:10:121
17827992715,11cyclictest0-21swapper/108:05:091
17827992715,11cyclictest0-21swapper/107:35:131
17827992715,11cyclictest0-21swapper/107:30:091
17829992615,10cyclictest55852sleep307:56:353
17829992615,10cyclictest37032sleep309:47:323
17829992615,10cyclictest301672sleep308:55:343
17829992615,10cyclictest284722sleep311:29:533
17829992615,10cyclictest261072sleep308:46:013
17829992615,10cyclictest239422sleep312:37:453
17829992615,10cyclictest18592sleep309:05:513
17829992615,10cyclictest175362sleep309:25:423
17829992615,10cyclictest169772sleep311:53:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional