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List: freebsd-amd64
Subject: Re: Why is MySQL nearly twice as fast on
From: "Steven Hartland" <killing () multiplay ! co ! uk>
Date: 2004-05-21 16:07:51
Message-ID: 014301c43f4d$ea2ce920$7b07000a () int ! mediasurface ! com
[Download RAW message or body]
Thanks muchly for that Andrew will try that.
Looking at the results from the netperf test posted here:
http://people.freebsd.org/~pjd/netperf/
so I'd say yes to your question. The machine moved home today
( my bedroom -> datacenter ), thank goodness its was a noisy beast.
So will have to wait till it gets installed, some time tonight, before
I can test.
Steve
----- Original Message -----
From: "Andrew Gallatin"
>
> Nice work. Does this translate pretty much directly into netperf
> request/response results? (netperf -tTCP_RR -Hremote)
>
> Assuming it does, have you tried "tuning" the bge interrupt coalescing
> params? Without adding an interface, I'd just suggest doing something
> like changing sc->bge_rx_max_coal_bds from 64 to 1 around like 2350 of
> dev/bge/if_bge.c, rebuilding the driver, and seeing what changes. I'm
> betting that will turn off recv interrupt coalescing and reduce your
> latency some.
>
> Drew
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