| title: | Tx Zerocopy and Scatter Gather on a 256 MB sy |
|
Hello !
I have a system with 256 MB RAM and am running
Linux-2.4.19 on it. I am running netperf with sendfile
on two Gbe cards: Broadcom 5701 using the tg3 driver
and Intel 82544/82546. When running on the Intel card,
no transmit takes place at all. However, when running
with the Broadcom NIC, zerocopy takes place fine along
with scatter gather. When running netperf without
sendfile, things are ok with both the cards.
The Intel NIC has not shown this problem when running
with higher amounts of memory. I have tried with 1 GB
and it works fine. So, I am assuming that this problem
is related to low memory. The file that I am trying to
send with sendfile() varies from 32KB - 128KB in size.
Any ideas what could be wrong?
Thanks
manish
=====
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