We have written an Intermediate driver, modifing Passthru sample in DDK
documentation: we have tested
our work and we have noticed that we have a delay of performance of 1-4%
respected vs Windows 2000 without ou filter over LAN of 10Mbit.
This delay, for our work, is very good; but we have noticed another
problem: over LAN of 100Mbit (only two host, connected directly) delay is
about 10-10.5%. Our question is: can our module work only 10Mbit? In other
words, packets which Passthru filters can goes only within 10Mbit (max of
speed)?
Another question: how can retrieve subnet address of our host in kernel
mode?
We thank you in advance and we remain yours truly.
Cristiano Notargiacomo xxxxx@libero.it
Giuseppe Aurilia xxxxx@gsmbox.it
I have done the same thing and don’t notice that much of an impact.
However, just saying “10%” is pretty meaningless, in that there are a
bunch of other factors involved
CPU speed
other system resources
whatever you’re doing to the packets when you get them
the NIC driver itself
the nature of your benchmarks (small packets vs big packets, and other
factors)
Could you describe your setup more fully?
As for the subnet question, which subnet? What if the system has
multiple adapters? Also, do you mean the subnet address or the *subnet
mask*? (192.168.0.0 vs 255.255.255.0).
-sd
On Wed, 2002-07-24 at 02:57, aurox wrote:
Hi all,
We have written an Intermediate driver, modifing Passthru sample in DDK
documentation: we have tested
our work and we have noticed that we have a delay of performance of 1-4%
respected vs Windows 2000 without ou filter over LAN of 10Mbit.
This delay, for our work, is very good; but we have noticed another
problem: over LAN of 100Mbit (only two host, connected directly) delay is
about 10-10.5%. Our question is: can our module work only 10Mbit? In other
words, packets which Passthru filters can goes only within 10Mbit (max of
speed)?
Another question: how can retrieve subnet address of our host in kernel
mode?
We thank you in advance and we remain yours truly.
Cristiano Notargiacomo xxxxx@libero.it
Giuseppe Aurilia xxxxx@gsmbox.it
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First, we want to thank you for your interesting about our questions!
In these day, we test our work to be safe about performance: we think,
also us, that the problem which we have seen is meaningless but, now,
in our initial test we have noticed that if we connect our machina
about 10 Mbit delay is very little, but it increases if we connect our
computer about 100 Mbit. We repeat that we are not sure yet and we are
testing our module. Our computer has 1599 Mhz and has a Pentium IV. Our
network card is Intel(R) PRO/100 VE Network Connection.
We want to know only if it is possibile that Passthru sample behaviour
is different for network speed. Can you suggest us some good benchmarks?
We want also to know what is our subnet mask: which function we must
call a kernel mode to have it.
We thank you in advance and we remain yours truly.
Cristiano Notargiacomo xxxxx@libero.it
Giuseppe Aurilia xxxxx@gsmbox.it