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Editorial Team
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Asked: 2026-05-18T20:09:23+00:00

int bufferSize = 8192; Byte[] buffer = new Byte[bufferSize]; I need to read from

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int bufferSize = 8192;
Byte[] buffer = new Byte[bufferSize];

I need to read from a NetworkStream which would have a continuous flow of incoming data at a high rate. I wanted to know

  • What should be the basis for setting the bufferSize value?
  • Is there a standard “safe” value that
    can be chosen irrespective of the
    enviornment?
  • Should it also vary with the Stream
    I’m trying to read from
    (FileStream/NetworkStream/..)?

Please consider performance as the focus point for the estimation.

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1 Answer

  1. Editorial Team

    There is only one sure way to optimize performance: measure, measure, measure.

    I’ve seen 1024, 4096 or 8192 used as buffer sizes for downloading files from the internet, and I haven’t noticed any significant difference using either one.

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