Comment #1 on issue 955 by nigel.tao.gnome: blob.getBytes and blob.slice performance issues in Chrome
http://code.google.com/p/gears/issues/detail?id=955

Yeah, I'm not surprised that performance sucks, since Gears methods like concat and getBytes have to cross a process boundary, with Chrome's multi-process architecture.

Given that you can pass Blobs between workers, and IIRC a Chrome/Gears worker computes in the Gears process, then try passing the Blob that you get from desktop.openFiles to a worker, do the concat/getBytes in the worker, and pass the result back to the main
thread.

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