FreeBSD for serious performance?

[Daniel O'Connor]

On 27/12/2012, at 13:44, Peter Jeremy <peter at rulingia.com> wrote:
>> I've only caught it hanging forever once. It only takes a few
>> milliseconds to cause incoming data to be lost,
> 
> I'm not sure what you mean by this.  FreeBSD is not a real-time
> operating system and so offers no guarantees on how long it will
> take before incoming data will be processed.  If you have an
> application that relies on incoming data being processed within
> milliseconds, you may need to do some redesign.

In practise FreeBSD can actually do this (at least for moderate IO loads).

At $work we use a USB interface to acquire ~10MB/sec from a data acquisition system which has a 96k FIFO (which is ~10 msec of buffering).

We use 3ware RAID cards to write to disk on Supermicro boards though, you get what you pay for..

--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
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