Re: Minimizing the impact of compaction on latency and throughput

2010-07-08 Thread Peter Schuller
> It might be worth experimenting with posix_fadvise.  I don't think > implementing our own i/o scheduler or rate-limiter would be as good a > use of time (it sounds like you're on that page too). Ok. And yes I mostly agree, although I can imagine circumstances where a pretty simple rate limiter m

Re: performance with a "large" number of supercolumns/columns

2010-07-08 Thread Jonathan Ellis
On Thu, Jul 8, 2010 at 12:18 AM, Terje Marthinussen wrote: > 1.  There is just too much code and too many "layers" involved when hasNext > is called. I suspect this requires a re-design and the > google/common-collections may have to be thrown out. This would seem to be a > pretty critical area of