Re: [lvs-users] LVS throughput limit (450k pps)?

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [lvs-users] LVS throughput limit (450k pps)?
From: Patrick Schreurs <pats@xxxxxxxxx>
Date: Mon, 14 Jan 2008 18:27:58 +0100 (CET)
> Handling loadbalancing in softirq corner is, IMHO, not the best place
> for performance. Softirq handling design become a performance bottlneck
> catalysed by the democratization of SMP (multi-core) box. There is
> alternative design but need to find time to work fulltime on this (I
> have this on my TODO).

The speed of a single core is just too slow. Balancing the interrupts
over multiple CPU cores gives a performance penalty.

What about MSI-X with multiqueue (like intel chipset 82575). Will that
help. I haven't found a nic with that chipset yet, but that's a different


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