Re: [squid-users] Hard Drive Latency

* Henrik Nordstrom (hno@squid-cache.org):

> On Mon, 30 Aug 2004, Thomas-Martin Seck wrote:
>
> >I'd like to compare 4.10+diskd against 5.3+diskd/aufs on the same
> >hardware with web polygraph. Is there a specific workload I can (or
> >should) use for this (I did not work with polygraph yet and am just
> >studying the manual)?
>
> polymix4 is the best so far.
>
> but problem is that it is not trivial to make the compare you are looking
> for with polymix.. all the polymix tests assumes you have already
> determined the performance this box should have and all the test says is
> if the box can keep up with the specified load, not what the maximum load
> the system is capable of handling is..
>
> I have a modified polymix4 workload which I call "polyboil4" which is
> quite useful in determining this. This workload dynamically increases the
> load until there is errors and is quite helpful in determining the limit
> of the system.

[detailed instructions elided]

Thanks a lot! I'll see how far I get and whether I get any meaningful
results.

I hope the polygraph licence allows me to publish at least basic
performance comparisons (e.g. x's performance is 95% of y's).
Received on Mon Aug 30 2004 - 10:20:30 MDT