[Haskell-beginners] IPerf in Haskell doesn't perform

[Alexander Morozov]

If it's still relevant... The problem is that the program sends data
in 8 byte chunks. Every write results in a syscall, context switch and
pushing the chunk through TCP stack, so overhead is great.

BTW, using Bytestring works well enough, my similar program [1] pushes
around 15Gbits through lo interface and saturates 1Gbit ethernet
connection.

[1] https://github.com/alexandermorozov/netperf

Regards,
Alexander

On Sat, Nov 9, 2013 at 5:08 PM, Thomas Bach
<thbach at students.uni-mainz.de> wrote:
> On Thu, 2013-11-07 at 14:55 -0800, Bob Ippolito wrote:
>> I took your code and made a few style cleanups so that hlint wouldn't
>> complain and so that it would be easier to read.
>
> Being able to see those changes you made one by one on github.com was
> very instructive. Thanks!
>
>>
>> The space leak is a strictness issue that is common for Haskell
>> beginners to do. […]
>
> Interesting. I wouldn't have thought of that.
>
> So, the space leak is avoided. Now, how do I get this thing to perform?
> Profiling the program is probably the way to go. Hopefully I find the
> time for this this week end.
>
>
> Regards,
>
>         Thomas.
>>
>
>
>
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