sockets - Is there an 'optimal' buffer size when using send()? -

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let's you're transferring file of arbitrary length in chunks on tcp/ip:

looping...     read(buffer, length)     send(mysocket, buffer, length, flags)

my question is, optimal value of length? or not matter @ all? i've seen 256 bytes 8192 bytes being used.

depends mean optimal. optimal usage of bandwidth, want maximize packet size send @ least network packet size (which on ethernet 1500 bytes). if reading disk 4096 or 8192 bytes value.


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