Question / Help Hi first time poster. Just wanted to ask 2 questions.

[Megasan]

So my first question is, are there any performance issues with using the 32bit OBS over the 64bit OBS on a 64bit system?
If so, how big is/are the issue(s)?
I wouldn't think that they are big but just in case as I need all the CPU/GPU I can get.
Second, I am using an older laptop. Log file as follows:

Open Broadcaster Software v0.465a - 64bit (　^ω^)
-------------------------------
CPU Name: Intel(R) Core(TM) i7 CPU       Q 720  @ 1.60GHz
CPU Speed: 1596MHz
Physical Memory:  4086MB Total, 2268MB Free
stepping id: 5, model 14, family 6, type 0, extmodel 0, extfamily 0, HTT 1, logical cores 8, total cores 4
Windows Version: 6.1 Build 7601 S
Aero is Disabled
------------------------------------------
Adapter 1
  Video Adapter: NVIDIA GeForce GT 230M  
  Video Adapter Dedicated Video Memory: 1026031616
  Video Adapter Shared System Memory: 1874262016
=====Stream Start=====================================================================
  Multithreaded optimizations: On
  Base resolution: 1366x768
  Output resolution: 908x512
------------------------------------------
Loading up D3D10...
------------------------------------------
Using auxilary audio input: Microphone (3- C-Media USB Headphone Set  )
------------------------------------------
Audio Encoding: AAC
    bitrate: 320
------------------------------------------
Video Encoding: x264
    fps: 20
    width: 908, height: 512
    preset: ultrafast
    CBR: no
    max bitrate: 1700
    buffer size: 1700
    quality: 10
------------------------------------------
++++++++++++++++++++++++++++++++++++++++++++++++++++++
  New Scene
Using Monitor Capture
++++++++++++++++++++++++++++++++++++++++++++++++++++++
  New Scene
++++++++++++++++++++++++++++++++++++++++++++++++++++++
  New Scene
Using Monitor Capture
Total frames rendered: 14018, number of frames that lagged: 2 (0.01%) (it's okay for some frames to lag)
=====Stream End=======================================================================

Profiler results:

==============================================================
frame - [100%] [avg time: 10.674 ms] [avg calls per frame: 1] [children: 59.2%] [unaccounted: 40.8%]
| scene->Preprocess - [29.8%] [avg time: 3.18 ms] [avg calls per frame: 1]
| video encoding and uploading - [29.4%] [avg time: 3.143 ms] [avg calls per frame: 1] [children: 7.67%] [unaccounted: 21.8%]
| | CopyResource - [0.244%] [avg time: 0.026 ms] [avg calls per frame: 0]
| | conversion to 4:2:0 - [0.375%] [avg time: 0.04 ms] [avg calls per frame: 0]
| | call to encoder - [7.03%] [avg time: 0.75 ms] [avg calls per frame: 0]
| | sending stuff out - [0.0281%] [avg time: 0.003 ms] [avg calls per frame: 0]
==============================================================

So what settings would you recommend to use the least CPU/GPU?
Bandwidth and upload speed are not an issue in this case.

Thx in advance.

 

[micechal]

As a reply to your first question, R1CH did some testing and the performance was about 5% better with 64-bit OBS.

 

[R1CH]

x264 was 5% better, I didn't test OBS directly since it has no easy way to benchmark. I expect the difference to be even less.

 

[Kilowar]

Everything always seem to run faster on 64bit for me :)

Open Broadcaster Software v0.465a - 32bit (´・ω・｀)
------------------------------------------
Total frames rendered: 2582, number of frames that lagged: 701 (27.15%) (it's okay for some frames to lag)
=====Stream End=======================================================================

Profiler results:

==============================================================
frame - [100%] [avg time: 21.184 ms] [avg calls per frame: 1] [children: 64.9%] [unaccounted: 35.1%]
| scene->Preprocess - [0.0142%] [avg time: 0.003 ms] [avg calls per frame: 1]
| video encoding and uploading - [64.9%] [avg time: 13.742 ms] [avg calls per frame: 1] [children: 64.8%] [unaccounted: 0.109%]
| | CopyResource - [49.5%] [avg time: 10.49 ms] [avg calls per frame: 0]
| | conversion to 4:2:0 - [0.0378%] [avg time: 0.008 ms] [avg calls per frame: 0]
| | call to encoder - [15.1%] [avg time: 3.193 ms] [avg calls per frame: 0]
| | sending stuff out - [0.132%] [avg time: 0.028 ms] [avg calls per frame: 0]
==============================================================

Open Broadcaster Software v0.465a - 64bit (　^ω^)
------------------------------------------
Total frames rendered: 2611, number of frames that lagged: 660 (25.28%) (it's okay for some frames to lag)
=====Stream End=======================================================================

Profiler results:

==============================================================
frame - [100%] [avg time: 20.404 ms] [avg calls per frame: 1] [children: 64.7%] [unaccounted: 35.3%]
| scene->Preprocess - [0.0147%] [avg time: 0.003 ms] [avg calls per frame: 1]
| video encoding and uploading - [64.7%] [avg time: 13.198 ms] [avg calls per frame: 1] [children: 64.6%] [unaccounted: 0.113%]
| | CopyResource - [48.6%] [avg time: 9.91 ms] [avg calls per frame: 0]
| | conversion to 4:2:0 - [0.0343%] [avg time: 0.007 ms] [avg calls per frame: 0]
| | call to encoder - [15.1%] [avg time: 3.088 ms] [avg calls per frame: 0]
| | sending stuff out - [0.833%] [avg time: 0.17 ms] [avg calls per frame: 0]
==============================================================