What are Internal transfer buffer size & Socket buffer S
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What are Internal transfer buffer size & Socket buffer S
I can’t seem to find any documentation regarding the "Internal transfer buffer size" and "Socket buffer size" settings in FileZilla FTP Server. Can anyone tell me what they do, or refer me to somewhere on the web where they are documented?
The "Socket buffer size" option controls the value of the SO_SNDBUF and SO_RCVBUF socket options set using setsockopt
The "Internal transfer buffer size" is the size of the buffer FZS uses internally. It's basically the maximum amount of bytes FZS tries to handle in a single IO operation.
In both cases, if the values are too small, FZS will be more busy to process the event loop than to do the actual IO, leading to poor throughput.
If the values are too big, lots of CPU resources will be wasted in moving stuff around in the buffers (memcpy and such).
The "Internal transfer buffer size" is the size of the buffer FZS uses internally. It's basically the maximum amount of bytes FZS tries to handle in a single IO operation.
In both cases, if the values are too small, FZS will be more busy to process the event loop than to do the actual IO, leading to poor throughput.
If the values are too big, lots of CPU resources will be wasted in moving stuff around in the buffers (memcpy and such).
