[Tsung] Enabling kernel poll support

[Jason Tucker]

Thanks everyone -

I did some testing last night with recompiled Erlang to support kernel poll,
and indeed I did see it reduce my client process CPU utilization by about
50%.

While we're on the subject of performance tuning, what's the official
opinioin (or unofficial opinion) on tsung or tsunami with an SMP-enabled R11
erlang? Have there been any specific modifications to the tsung code since
R11 came out to support this, or should it "just work"?

__Jason



On 5/16/07, Mickaël Rémond <mickael.remond at process-one.net> wrote:
>
> Hello Jason,
> Basically Kernel Polling reduce CPU overhead of TCP connections.
> Initially Kernel Polling was not available under Linux and Tsung bypass
> that by starting several Erlang VM.
> However if you really want to generate a lot of user it can reduce CPU
> consumption a bit.
>
> Note that however you are very likely to reach operating system limits
> before Tsung ones. For large scale benchmark, you will have to aggressively
> tune your Operating System.
>
>
> --
> Mickaël Rémond
>  http://www.process-one.net/
>
>
>
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