On 06/17/2012 12:22 AM, Or Gerlitz wrote:
On 6/14/2012 7:09 PM, Sridhar Samudrala wrote:
Enabling NETIF_F_SG improves the throughput further by avoiding a
additional kernel memcpy caused by skb_linearize() in dev_queue_xmit().
Hi Sridhar,
If you **only** enable NETIF_F_SG for CM, does this yields any gain?
did you had to patch the code for that end?
Hi Or, We did not try only NETIF_F_SG for IPoIB CM. We tried it along
with NETIF_F_IP_CSUM. We did run
into issues with netperf i.e. netperf errors out along with
NETIF_F_SG. However, iperf worked fine. Did not investigate that further.
Thanks
Pradeep
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