I noticed that multiple packets are being sent to the network when one would do
on a couple of Linux 2.6.x boxes. one is SuSE SLES 9, the other is RHEL 4. the
first packet is all the HTTP headers, the second is the body/file. strace
http://people.apache.org/~gregames/rhel4.cork.strace reveals that httpd is
issuing the correct setsockopt()s to enable/disable TCP_CORK. no such problem
seen on 2.4 kernels.
here is a packet trace in pcap/tcpdump binary format
http://people.apache.org/~gregames/rhel4.cork.tcpdump
Nivedita, are you aware of any bugs like this?
if you want to try this with Apache 2.x, use a file that's bigger than 256 bytes
so that core_output_filter will use sendfile, but small enough so that the HTTP
headers + file will fit into one ethernet packet.
Greg
