On May 8, 2014, at 2:09 PM, Anders Broman <a.broman@xxxxxxxxxxxx> wrote:
> I'm not sure but from the picture there seems to be a bit of overhead per write so if we reduce
> the fwrites() to 3, hdr-pkdata-footer with hdr and footer being a local buffer[x] it might make some difference.
Presumably you're talking about the writes in pcapng_write_enhanced_packet_block() and putting the padding, options, and trailer into the footer, right?
But how much of the overhead is due to multiple calls to write_to_file() and thus to fwrite()?