From: Chase Douglas <[EMAIL PROTECTED]> Date: Mon, 30 Jan 2006 13:55:21 -0500
> I have a question about the implementation of sendfile. In my current > configuration of a server, when requests are made for a file, a new > thread is spawned and sendfile is called to complete the request (We > realize that spawning a thread for every request is a bad way to do > this, but that's just our current situation). If I am serving many > requests concurrently, and I try to send about 3 MB of each request at a > time through sendfile, and assuming that the speed of each connection is > sufficient, would each sendfile send all 3 MB at once, or would each > call try to send maybe 512 KB, then another 512 KB, then another 512 KB > and so on? If it is the latter, then would it be that each thread might > be switched after only 512 KB of data is sent from a file? We'll queue enough to fill the socket send buffer, then block the thread. As ACK's come back to make space again, the thread wakes up and queues up more sendfile() pages until the socket send buffer limit is reached again. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
