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Home/ Questions/Q 1078261
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Editorial Team
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Editorial Team
Asked: May 16, 20262026-05-16T21:41:46+00:00 2026-05-16T21:41:46+00:00

If I add the [Serializable] attribute to a class, does this introduce any overhead?

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If I add the [Serializable] attribute to a class, does this introduce any overhead? How about if the class is never used in any serialization operations?

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  1. Editorial Team
    Editorial Team
    2026-05-16T21:41:47+00:00Added an answer on May 16, 2026 at 9:41 pm

    This doesn’t add any overhead to the normal runtime use of the object.

    Marking a class as Serializable doesn’t even result in a size difference in metadata. It just sets a bit in the typedef flag. (Thanks to thecoop for pointing that out)

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