[volunteergrid2-l] Long cycle times

[Marco Tedaldi]

On 23.09.2011 02:02, Shawn Willden wrote:
> On Thu, Sep 22, 2011 at 1:19 PM, Marco Tedaldi <marco.tedaldi at gmail.com>wrote:
> 
>> I see that with about 300GB of
>> data my server would only be checking that stuff the whole day long.
>>
> 
> Yep.  But the reason it's slow is that Tahoe does the checks at a very low
> rate, in order to avoid interfering with any other processing.  The checks
> require very little I/O or CPU, but it was found that running them at full
> speed caused short but painful slowdowns.  So instead the checks are
> throttled to a very low rate.
> 
Wow... it is just impressive how much thought has been pured into that
sort of things.
thanx a load for the answer. The longer I use this stuff the more I like it!


> 
>> Is it normal, that the checks take that long? Can I speed this up? Will
>> there be problems, if the check takes longer than the time between two
>> checks?
> 
> 
> Nope.  GC will just run less often -- which is fine, frankly.  It could
> really run once a week or even less unless your server is close to full.
>  And if it's close to fully you likely have bigger problems.
> 
yep... that's for sure. I'm just glad that there is still enough space
around.

best

Marco