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<font face="serif">Hello all. <br>
<br>
I would like to know what kinds of performance changes I might
expect to see if I switched from the generic NIC driver to a
device specific driver (e1000e in my case). With the generic NIC
driver I am currently seeing ecrt_master_receive calls averaging
about 10us and ecrt_master_send times that are a few micro seconds
longer. </font><font face="serif"><font face="serif">I don't
need exact numbers just a rough idea. Would using the custom
e1000e driver reduce times by an order of magnitude, 50%, 5%? <br>
<br>
</font>I would also like to know how sensitive the times are to
PDO size? I've tried registering fewer PDOs (i.e.
ecrt_domain_reg_pdo_entry_list) and the difference in
transmit/receive times seems to be nearly unaffected. In addition
I tried reducing the number of devices attached to my EK-1100
coupler and that also had little to no change in run times. Are
those results as expected? <br>
<br>
</font><font face="serif">Thanks<br>
<br>
</font>
<pre class="moz-signature" cols="72">--
-john
To be or not to be, that is the question
2b || !2b
(0b10)*(0b1100010) || !(0b10)*(0b1100010)
0b11000100 || !0b11000100
0b11000100 || 0b00111011
0b11111111
255, that is the answer.
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