You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-03-18 - 14:40

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 #c, slot #8

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 rackcslot8s.osadl.org (updated Tue Mar 18, 2025 00:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32952700,1sleep31228-21runrttasks21:50:463
32952700,1sleep31228-21runrttasks21:50:453
132091660,25ptp4l0-21swapper/119:05:181
132091650,6ptp4l0-21swapper/619:09:346
132091630,5ptp4l0-21swapper/219:07:542
1583926250,7sleep30-21swapper/319:08:273
132091610,30ptp4l0-21swapper/019:07:190
132091600,5ptp4l0-21swapper/419:06:004
116652600,1sleep6641ktimersoftd/621:18:286
82662550,0sleep40-21swapper/421:57:524
1596525444,6sleep70-21swapper/719:10:007
1583224737,6sleep50-21swapper/519:08:205
295882350,0sleep10-21swapper/121:41:151
132091330,0ptp4l0-21swapper/519:40:175
132091320,1ptp4l22771-21nfs4_client23:50:175
132091320,0ptp4l0-21swapper/123:56:051
132091320,0ptp4l0-21swapper/022:12:460
132091310,1ptp4l7541-21ssh21:13:311
132091310,0ptp4l0-21swapper/500:05:575
132091310,0ptp4l0-21swapper/022:22:060
132091300,1ptp4l31626-21diskstats20:55:151
132091300,0ptp4l0-21swapper/622:16:036
132091300,0ptp4l0-21swapper/423:43:534
132091300,0ptp4l0-21swapper/400:15:204
132091300,0ptp4l0-21swapper/400:15:194
132091300,0ptp4l0-21swapper/023:42:510
132091300,0ptp4l0-21swapper/023:19:420
132091300,0ptp4l0-21swapper/021:45:550
132091290,4ptp4l0-21swapper/123:06:031
132091290,0ptp4l0-21swapper/523:21:325
132091290,0ptp4l0-21swapper/522:04:145
132091290,0ptp4l0-21swapper/400:02:144
132091290,0ptp4l0-21swapper/123:11:001
132091290,0ptp4l0-21swapper/121:35:551
132091290,0ptp4l0-21swapper/100:20:491
132091290,0ptp4l0-21swapper/100:20:481
132091290,0ptp4l0-21swapper/100:01:311
132091290,0ptp4l0-21swapper/020:00:140
132091280,5ptp4l0-21swapper/023:01:310
132091280,3ptp4l0-21swapper/121:58:311
132091280,3ptp4l0-21swapper/121:27:561
132091280,0ptp4l0-21swapper/600:23:446
132091280,0ptp4l0-21swapper/600:23:446
132091280,0ptp4l0-21swapper/522:24:115
132091280,0ptp4l0-21swapper/500:37:555
132091280,0ptp4l0-21swapper/400:20:074
132091280,0ptp4l0-21swapper/400:20:074
132091280,0ptp4l0-21swapper/300:32:563
132091280,0ptp4l0-21swapper/200:31:572
132091280,0ptp4l0-21swapper/100:26:551
132091280,0ptp4l0-21swapper/021:51:520
132091280,0ptp4l0-21swapper/021:51:510
132091270,0ptp4l0-21swapper/522:47:145
132091270,0ptp4l0-21swapper/500:02:595
132091270,0ptp4l0-21swapper/421:16:584
132091270,0ptp4l0-21swapper/420:40:154
132091270,0ptp4l0-21swapper/122:01:341
132091270,0ptp4l0-21swapper/022:35:040
132091270,0ptp4l0-21swapper/000:26:410
132091270,0ptp4l0-21swapper/000:07:140
132091260,1ptp4l0-21swapper/400:08:284
132091260,1ptp4l0-21swapper/121:24:071
132091260,0ptp4l0-21swapper/523:55:145
132091260,0ptp4l0-21swapper/522:36:305
132091260,0ptp4l0-21swapper/522:15:175
132091260,0ptp4l0-21swapper/521:33:395
132091260,0ptp4l0-21swapper/521:14:165
132091260,0ptp4l0-21swapper/500:18:595
132091260,0ptp4l0-21swapper/500:18:595
132091260,0ptp4l0-21swapper/421:52:164
132091260,0ptp4l0-21swapper/421:52:164
132091260,0ptp4l0-21swapper/321:55:183
132091260,0ptp4l0-21swapper/200:11:362
132091260,0ptp4l0-21swapper/122:42:271
132091260,0ptp4l0-21swapper/122:16:381
132091260,0ptp4l0-21swapper/122:10:081
132091250,2ptp4l241ktimersoftd/100:36:291
132091250,1ptp4l721ktimersoftd/700:32:147
132091250,1ptp4l18531-21df00:30:061
132091250,1ptp4l11498-21memory20:10:206
132091250,0ptp4l0-21swapper/723:30:087
132091250,0ptp4l0-21swapper/721:49:307
132091250,0ptp4l0-21swapper/523:37:275
132091250,0ptp4l0-21swapper/523:05:055
132091250,0ptp4l0-21swapper/522:56:265
132091250,0ptp4l0-21swapper/521:54:575
132091250,0ptp4l0-21swapper/521:54:565
132091250,0ptp4l0-21swapper/521:40:035
132091250,0ptp4l0-21swapper/521:21:435
132091250,0ptp4l0-21swapper/521:15:125
132091250,0ptp4l0-21swapper/422:36:344
132091250,0ptp4l0-21swapper/421:47:144
132091250,0ptp4l0-21swapper/421:10:534
132091250,0ptp4l0-21swapper/420:00:154
132091250,0ptp4l0-21swapper/123:19:341
132091250,0ptp4l0-21swapper/122:49:251
132091250,0ptp4l0-21swapper/122:40:011
132091250,0ptp4l0-21swapper/121:34:351
132091250,0ptp4l0-21swapper/100:08:121
132091250,0ptp4l0-21swapper/023:48:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional