[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] GPLPV network performance
Hi James, Fajar A. Nugraha wrote: > James Harper wrote: > >>> Is it safe to assume that, for now, Standard PC HAL will >>> give better network performance compared to ACPI HAL when used with >>> GPLPV? >>> >>> >>> >> That is a good question, but I don't know the answer. I get great >> performance (>2Gbits/second) on my system without much effort at all, >> By "without much effort" you mean not having to change any network offload settings, right? >> even with SMP. My system is AMD though... maybe there is some difference >> there? >> >> >> > > I'm using Intel on RHEL 5.2, bundled Xen. Maybe that's what causing it. > > >> With 1 cpu and ACPI, what was your performance like? (eg was it SMP >> slowing you down or ACPI?) >> >> I tested again using: - Xeon X5450 @3GHz (same machine as earlier test), W2k3, single CPU, ACPI -> iperf = 1.4 Gbps - Opteron 2220 SE @2.8 GHz, W2k3, single CPU, ACPI -> iperf = 1 Gbps So it seems that AMD or Intel doesn't matter much, and neither does ACPI vs standard PC. The only thing that makes HUGE difference is SMP. Is this a known issue? Regards, Fajar Attachment:
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