Hi all, I have used the sendpage call rather than the sendmesg call for my application. I have completely eliminated the intensive __copy_from_user_11 process(as seen in my readprofile results) , and I expected to see a gain in my CPU utilization and throughput. Somehow , nothing seems to be happening. I have used 4K blocks on the wire. I am on the 2.6.10 kernel . Does anyone have any experience , or have seen lots of improvements with sendpage for any bulk data transfer?? Thanks, Sai __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html