In some email I received from Brandon Stafford, sie wrote:
[ Charset windows-1252 unsupported, converting... ]
> Hello,
>
> I'm writing a server that captures UDP packets and, after some
> manipulation, sends the data out the serial port. Right now, I'm using
> recvfrom(), but it takes 20 ms t
Ryan Mooney wrote:
Brandon,
For curiousity sake (I have a simular app and am seriously interested
in performance).
- What platform (OS/processor) are you on,
OpenBSD 3.4 on a HP Kayak XA, Pentium II, 233 MHz (ugh!)
- How did you measure the time to call recvfrom(), or perhaps
even a more relevant
Guy Harris wrote:
If a received packet has a bad IP header or UDP checksum, it should get
discarded at the IP or UDP layer, so that your application would *never*
see it, not just see it after 20ms.
I should have been more clear-- the UDP packets have
checksums of 0x00, not bad checksums. I bel
Brandon,
For curiousity sake (I have a simular app and am seriously interested
in performance).
- What platform (OS/processor) are you on,
- How did you measure the time to call recvfrom(), or perhaps
even a more relevant question is how do you use recvfrom()
(whats the surrounding code lik
On May 23, 2004, at 6:37 PM, Brandon Stafford wrote:
I'm writing a server that captures UDP packets and, after some
manipulation, sends the data out the serial port. Right now, I'm using
recvfrom(), but it takes 20 ms to execute for each packet captured. I
know that tcpdump can capture packe
Hello,
I'm writing a server that captures UDP packets and, after some manipulation, sends
the data out the serial port. Right now, I'm using recvfrom(), but it takes 20 ms to
execute for each packet captured. I know that tcpdump can capture packets much faster
than 20 ms/packet on the same
