[collectd] [PATCH] Random write timeout for rrdtool plugin

[Mariusz Gronczewski]

2009/8/18 Florian Forster <octo at verplant.org>:
> Hi Mariusz,
>
> On Tue, Aug 18, 2009 at 12:50:42PM +0200, Mariusz Gronczewski wrote:
>> Yeah good point, but that would be probably noticable on very slow
>> (like PIII 800 slow) machines with tons of rrd, and then machine would
>> run out of disk bandwidth first.
>
> yeah, it's probably not a real problem, but with random numbers you
> ought to be careful. In the worst case you'd eat up precious entropy
> from the operating system.
Yes it is precious (too bad almost noone makes chipsets with HWRNG ;/)
but rand() is pseudorandom generator so it wont eat anything from
system entropy pool :). Actually collectd generates a bit of entropy
coz of disk I/O ;]

Regards
Mariusz