Benchmark PhotoShop Actions in Extended Javascript

benchmark.jsx

var folder = 'C:\\LocalStorage'; // resource folder
var benchmarkFile = 'C:\\LocalStorage\\benchmark.csv'; // test results

/**
 * The functions you combine in this method will be benchmark tested
 * @param fileName - Target file
 */
function psAction(fileName){ 
    psOpenFile(fileName);
    psDefaultUnits();
    psFit(1000, 1500, 300);
    psSaveTiff();
    psCloseFile();
}

function psOpenFile(fileName){
    // Only want to open non-hidden files (and no folders)
    if ((fileName instanceof File) && (fileName.hidden == false)) {
        // Open in Photoshop
        open(fileName);
    }
}

function psCloseFile(){
    var doc = activeDocument;
    doc.close(SaveOptions.SAVECHANGES);
}

function psDefaultUnits(){
    app.preferences.rulerUnits = Units.PIXELS
    app.preferences.typeUnits = TypeUnits.PIXELS
    app.preferences.askBeforeSavingLayeredTIFF = false
    app.preferences.maximizeCompatibility = true
    app.foregroundColor.rgb.hexValue = "000000"
    app.backgroundColor.rgb.hexValue = "ffffff"
}

function psAddLayers(nLayers){ // run on tif files
    var doc = activeDocument;

    for(var i = 0; i < nLayers; i++){
        doc.backgroundLayer.duplicate();
    }
}

function psSaveTiff(){
    var doc = activeDocument;
    var tiffSaveOptions = new TiffSaveOptions();

    tiffSaveOptions.byteOrder = ByteOrder.MACOS;            
    tiffSaveOptions.embedColorProfile = true;		
    tiffSaveOptions.layers = true;
    tiffSaveOptions.imageCompression = TIFFEncoding.TIFFLZW;
    tiffSaveOptions.layerCompression = LayerCompression.RLE; 	

    doc.saveAs(doc.path, tiffSaveOptions, false, Extension.LOWERCASE);
}

function psResize(percentage){
    var doc = activeDocument;
    doc.resizeImage(UnitValue(percentage,"%"), UnitValue(percentage,"%"), // width, height
                    null, ResampleMethod.AUTOMATIC); // dpi
}

function psFlatten(){
    var doc = activeDocument;
    doc.flatten();
}

/**
 * @param profile - The new color profile, such as: sRGB IEC61966-2.1 
 */
function psRecolor(profile){
    var doc = activeDocument;
    doc.convertProfile(profile, Intent.RELATIVECOLORIMETRIC, true, true );
}

/* Fit image to desired canvas dimensions in pixels.
 * Will not resize images smaller than the shortest starting document side
 */
function psFit(endWidth, endHeight, endRes){
    var doc = activeDocument;
    
    var startWidth = doc.width;
    var startHeight = doc.height;
    var startRes = doc.resolution;
    
    app.displayDialogs = DialogModes.NO;
    
    var startRatio = startWidth / startHeight;
    var endRatio = endWidth / endHeight;
    
    doc.backgroundLayer.duplicate();
    
    if(startRes != endRes){
        doc.resizeImage(startWidth, startHeight, endRes, ResampleMethod.AUTOMATIC);
    }

    if (endRatio < startRatio){
        if (endHeight > endWidth){
            doc.resizeCanvas(null, (1 / endRatio) * startHeight, AnchorPosition.MIDDLECENTER);
        } 
    } else {
            doc.resizeCanvas(endRatio * startWidth, null, AnchorPosition.MIDDLECENTER);
    }
}

function psExit(){
    app.purge(PurgeTarget.ALLCACHES);
    executeAction(app.charIDToTypeID('quit'), undefined, DialogModes.NO);
}

function writeToFile(fileName, text){
    var txtFile = new File(fileName);
    txtFile.open("a");
    txtFile.writeln(text);
    txtFile.close();
}

function initFile(fileName){
    var txtFile = new File(fileName);
    txtFile.open("w");
    txtFile.writeln("File,Size(Bytes),Time(ms)");
    txtFile.close();
}

var inputFolder = new Folder(folder);
var fileList = inputFolder.getFiles(/\.(jpg|tif|psd|bmp|gif|png|jpeg|tiff)$/i);
var startTime, endTime, actionTime;

initFile(benchmarkFile);

for (var i = 0; i < fileList.length; i++) {
    startTime = new Date().getTime();
    
    // Perform PhotoShop action on File
    psAction(fileList[i]); 
    
    endTime = new Date().getTime();
    actionTime = endTime - startTime; // in milliseconds
    writeToFile(benchmarkFile,  fileList[i].name + "," + 
                                fileList[i].length + "," + 
                                actionTime);
}
psExit();

runChild.jsx

var SCRIPTS_FOLDER =  'c:\\Path\\To\\Script\\Folder\\';
var script = new File(SCRIPTS_FOLDER + 'child.jsx'); // the child script
$.evalFile (script);