Stephen Hemminger <[EMAIL PROTECTED]> wrote on 07/20/2007 12:48:48 PM:
> You may see worse performance with batching in the real world when > running over WAN's. Like TSO, batching will generate back to back packet > trains that are subject to multi-packet synchronized loss. The problem is that > intermediate router queues are often close to full, and when a long string > of packets arrives back to back only the first ones will get in, the rest > get dropped. Normal sends have at least minimal pacing so they are less > likely do get synchronized drop. Hi Stephen, OK. The difference that I could see is that in existing code, the "minimal pacing" also could lead to (possibly slighly lesser) loss since sends are quick iterations at the IP layer, while in batching sends are iterative at the driver layer. Is it an issue ? Any suggestions ? Thanks, - KK - 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
