You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-02 - 16:16

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 #c, slot #3

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 rackcslot3s.osadl.org (updated Tue Dec 02, 2025 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5342329321,5sleep20-21swapper/207:07:532
310962316309,4sleep30-21swapper/307:05:013
4132315308,4sleep00-21swapper/007:06:230
4012314306,5sleep10-21swapper/107:06:161
1016993010,300cyclictest31073-21kworker/u16:0+efi_rts_wq10:55:142
1017993000,299cyclictest20198-21kworker/u16:0+efi_rts_wq11:55:143
1017992990,298cyclictest23232-21kworker/u16:2+efi_rts_wq08:18:183
1017992980,297cyclictest31073-21kworker/u16:0+efi_rts_wq07:20:133
1017992980,297cyclictest23232-21kworker/u16:2+efi_rts_wq08:25:133
1014992970,295cyclictest20198-21kworker/u16:0+efi_rts_wq11:50:140
1017992960,295cyclictest31073-21kworker/u16:0+efi_rts_wq10:08:353
1017992950,294cyclictest23232-21kworker/u16:2+efi_rts_wq11:00:153
1014992950,294cyclictest31073-21kworker/u16:0+efi_rts_wq07:15:120
1014992940,293cyclictest23232-21kworker/u16:2+efi_rts_wq10:00:120
1014992940,293cyclictest20198-21kworker/u16:0+efi_rts_wq12:20:150
1017992930,292cyclictest13267-21kworker/u16:2+efi_rts_wq11:30:133
1017992930,291cyclictest23232-21kworker/u16:2+efi_rts_wq10:50:133
1015992930,292cyclictest31073-21kworker/u16:0+efi_rts_wq08:38:221
1017992920,291cyclictest23232-21kworker/u16:2+efi_rts_wq08:35:133
1017992920,291cyclictest23232-21kworker/u16:2+efi_rts_wq07:55:193
1014992920,291cyclictest31073-21kworker/u16:0+efi_rts_wq09:08:270
1014992910,290cyclictest23232-21kworker/u16:2+efi_rts_wq08:58:250
1016992900,289cyclictest23232-21kworker/u16:2+efi_rts_wq09:05:132
1015992900,289cyclictest23232-21kworker/u16:2+efi_rts_wq07:38:091
1015992890,288cyclictest20198-21kworker/u16:0+efi_rts_wq11:55:141
1016992880,287cyclictest23232-21kworker/u16:2+efi_rts_wq10:05:152
1016992880,287cyclictest23232-21kworker/u16:2+efi_rts_wq07:45:132
1016992870,286cyclictest31073-21kworker/u16:0+efi_rts_wq08:55:162
1014992870,286cyclictest31073-21kworker/u16:0+efi_rts_wq09:50:130
1014992870,286cyclictest23232-21kworker/u16:2+efi_rts_wq09:38:310
1015992860,285cyclictest23232-21kworker/u16:2+efi_rts_wq09:45:131
1016992840,282cyclictest5444-21kworker/u16:3+efi_rts_wq11:15:142
1014992840,281cyclictest31073-21kworker/u16:0+efi_rts_wq10:35:150
1016992830,282cyclictest31073-21kworker/u16:0+efi_rts_wq10:43:452
1015992820,281cyclictest23232-21kworker/u16:2+efi_rts_wq08:00:121
1017992810,280cyclictest31073-21kworker/u16:0+efi_rts_wq10:30:123
1014992810,280cyclictest31073-21kworker/u16:0+efi_rts_wq10:40:130
1016992800,279cyclictest31773-21kworker/u16:4+efi_rts_wq12:35:152
1017992790,278cyclictest23232-21kworker/u16:2+efi_rts_wq07:50:103
1016992780,277cyclictest23232-21kworker/u16:2+efi_rts_wq08:33:212
1017992760,275cyclictest31073-21kworker/u16:0+efi_rts_wq09:15:133
1017992760,275cyclictest20198-21kworker/u16:0+efi_rts_wq11:43:573
1015992760,275cyclictest31073-21kworker/u16:0+efi_rts_wq09:23:291
1015992760,275cyclictest23232-21kworker/u16:2+efi_rts_wq10:18:371
1014992760,275cyclictest31073-21kworker/u16:0+efi_rts_wq08:50:130
1015992750,274cyclictest5444-21kworker/u16:3+efi_rts_wq11:05:151
1014992740,273cyclictest5444-21kworker/u16:3+efi_rts_wq11:08:500
1017992720,271cyclictest31073-21kworker/u16:0+efi_rts_wq08:10:143
1016992720,271cyclictest23232-21kworker/u16:2+efi_rts_wq10:20:132
1016992720,271cyclictest23232-21kworker/u16:2+efi_rts_wq08:00:122
1016992710,270cyclictest31073-21kworker/u16:0+efi_rts_wq09:35:142
1016992710,270cyclictest31073-21kworker/u16:0+efi_rts_wq07:20:132
1014992710,270cyclictest23232-21kworker/u16:2+efi_rts_wq07:45:130
1014992700,269cyclictest31073-21kworker/u16:0+efi_rts_wq09:30:130
1017992690,268cyclictest23232-21kworker/u16:2+efi_rts_wq10:15:143
1017992680,267cyclictest31073-21kworker/u16:0+efi_rts_wq08:45:153
1016992680,267cyclictest23232-21kworker/u16:2+efi_rts_wq09:00:142
1016992670,266cyclictest7984-21kworker/u16:1+efi_rts_wq11:20:132
1015992670,266cyclictest15567-21kworker/u16:3+efi_rts_wq11:35:141
1016992660,265cyclictest31073-21kworker/u16:0+efi_rts_wq08:15:122
1015992650,264cyclictest31073-21kworker/u16:0+efi_rts_wq09:58:331
1014992650,264cyclictest31073-21kworker/u16:0+efi_rts_wq10:30:120
1016992610,260cyclictest23232-21kworker/u16:2+efi_rts_wq07:30:162
1014992610,260cyclictest23232-21kworker/u16:2+efi_rts_wq07:58:140
1017992600,259cyclictest23232-21kworker/u16:2+efi_rts_wq10:45:133
1016992600,259cyclictest31073-21kworker/u16:0+efi_rts_wq08:40:142
1015992590,258cyclictest15567-21kworker/u16:3+efi_rts_wq11:23:531
1014992590,258cyclictest31073-21kworker/u16:0+efi_rts_wq07:23:070
1015992580,257cyclictest31073-21kworker/u16:0+efi_rts_wq09:25:141
1014992580,257cyclictest31073-21kworker/u16:0+efi_rts_wq10:25:150
1014992570,256cyclictest31773-21kworker/u16:4+efi_rts_wq12:10:150
1017992560,255cyclictest7984-21kworker/u16:1+efi_rts_wq11:10:153
1016992560,255cyclictest23232-21kworker/u16:2+efi_rts_wq10:45:132
1016992560,255cyclictest20198-21kworker/u16:0+efi_rts_wq11:50:142
1017992540,252cyclictest23232-21kworker/u16:2+efi_rts_wq10:10:143
1017992520,251cyclictest23232-21kworker/u16:2+efi_rts_wq09:33:303
1016992520,251cyclictest15567-21kworker/u16:3+efi_rts_wq11:25:122
1015992520,251cyclictest23232-21kworker/u16:2+efi_rts_wq09:40:131
1015992510,250cyclictest20198-21kworker/u16:0+efi_rts_wq11:40:161
1014992500,249cyclictest23232-21kworker/u16:2+efi_rts_wq08:25:120
1014992480,247cyclictest20198-21kworker/u16:0+efi_rts_wq11:59:000
1015992440,243cyclictest23232-21kworker/u16:2+efi_rts_wq07:30:151
1015992390,238cyclictest31773-21kworker/u16:4+efi_rts_wq12:15:131
1015992390,238cyclictest23232-21kworker/u16:2+efi_rts_wq09:05:131
1016992360,235cyclictest31073-21kworker/u16:0+efi_rts_wq10:38:452
1015992350,234cyclictest31073-21kworker/u16:0+efi_rts_wq08:43:231
1015992350,234cyclictest23232-21kworker/u16:2+efi_rts_wq07:25:131
1016992340,233cyclictest7984-21kworker/u16:1+efi_rts_wq11:10:162
1015992330,232cyclictest31073-21kworker/u16:0+efi_rts_wq07:18:061
1016992310,230cyclictest20198-21kworker/u16:0+efi_rts_wq12:09:022
1015992300,229cyclictest15567-21kworker/u16:3+efi_rts_wq11:33:551
1015992280,227cyclictest20198-21kworker/u16:0+efi_rts_wq12:05:151
1016992260,225cyclictest13267-21kworker/u16:2+efi_rts_wq11:45:132
1016992240,223cyclictest31773-21kworker/u16:4+efi_rts_wq12:30:122
1015992200,219cyclictest20198-21kworker/u16:0+efi_rts_wq12:29:061
1015992190,218cyclictest23232-21kworker/u16:2+efi_rts_wq10:10:141
1014992170,216cyclictest31073-21kworker/u16:0+efi_rts_wq08:45:150
1015992160,215cyclictest31773-21kworker/u16:4+efi_rts_wq12:24:051
1015992160,215cyclictest31073-21kworker/u16:0+efi_rts_wq08:20:121
1015992150,214cyclictest31073-21kworker/u16:0+efi_rts_wq08:05:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional