• Notes on PPC application performance
  • 0. About this readme




    Download 45.81 Kb.
    bet5/5
    Sana21.03.2017
    Hajmi45.81 Kb.
    #924
    1   2   3   4   5
    *NEW* Mute Tool

  • *NEW* Source Linux compatibility

  • some minor changes.

    -- Now there are 4 projects for Windows:


    -- SBaGenr.exe -- plain command line utility;

    -- SBaGenw.exe -- WIN32 GUI ASCII/ANSI appl;

    -- SBaGenwu.exe -- same, but using only UNICODE system calls;

    -- SBaGene.exe -- PPC versions for many different CPU


    NOTE: SBaGenw and SBaGenwu were never planned to be separate programs; I wrote them as approaches for the PPC SBaGene, but, probably, they may be found useful for somebody.
    NOTE: all the projects compile from the same code tree.
    NOTE: if somebody will attempt to add for PPC SBaGene "shell extensions" (i.e. association SBaGene.exe with *.SBG-files), this probably will work incorrectly – as I don't plan this feature, I don't precisely know how to make it working under CE.
    Notes on PPC application performance
    As PPC resources are limited, I must forewarn on some problems. If we took a CPU like ARMV4(i) 200 MHz as a basis:
    1) no problems will arise for the most complicated sessions (up to 16 channels), with background sound in WAV/RAW format.
    2) when using a background MP3 or flat (non-looped) OGG file, in most cases everything will work properly assuming the SBaGen is a single application that consumes CPU resources, and the user have no attempts to interactively work with the machine. Unfortunately, the tests showed that a 200MHz CPU operation depends on the file encoding method (especially for MP3), i.e. workability is not guaranteed. Apparently, more powerful CPUs will avoid problems with MP3/non-looped OGG files.
    3) playing back of looped OGG files at 200MHz CPU is impossible. This problem surely dissipates for 533MHz-up CPUs.
    4) for the looped OGG files note, that SBaGen loads all the file in the memory at once, so avoid using lengthy looped OGG files.
    Download 45.81 Kb.
  • 1   2   3   4   5




    Download 45.81 Kb.