Parallel Chunks

Parallel Chunk Uploads

Upload multiple chunks of a file simultaneously to maximize bandwidth utilization. The ParallelChunks setting controls how many chunk requests are sent in parallel.

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<au:AjaxFileUpload ID="Uploader1" runat="server"
    EnableChunkedUpload="true"
    ChunkSize="2097152"
    ParallelChunks="3"
    AllowMultiple="true"
    ShowProgress="true" />

// JavaScript API approach
var uploader = AjaxUploader.create('#uploader', {
    uploadUrl: '/ajaxupload.axd/chunk',
    chunked: true,
    chunkSize: 2 * 1024 * 1024,
    concurrency: 3, // parallel chunk uploads
    onTaskProgress: function(task) {
        stats.textContent = task.fileName + ': ' +
            Math.round(task.percent) + '% - ' +
            AjaxUploader.formatSize(task.speed) + '/s';
    }
});