Re: what is the expected result of changing this in storage.conf

2010-08-04 Thread Peter Schuller
> Thanks for the link but that doesn't answer my question. I happen to know > quite allot about tuning Linux/Solaris/*NIX. I'm trying to figure out the > limits in cassandra, when it breaks, and why. > > So, anyone know of or published benchmarks on messing with these values? In order for such a b

Re: what is the expected result of changing this in storage.conf

2010-08-03 Thread Dathan Pattishall
Thanks for the link but that doesn't answer my question. I happen to know quite allot about tuning Linux/Solaris/*NIX. I'm trying to figure out the limits in cassandra, when it breaks, and why. So, anyone know of or published benchmarks on messing with these values? On Tue, Aug 3, 2010 at 7:08 PM

Re: what is the expected result of changing this in storage.conf

2010-08-03 Thread Jonathan Ellis
You need to find out where your bottleneck is, before you start trying to mitigate it. Some good first steps are at http://spyced.blogspot.com/2010/01/linux-performance-basics.html On Tue, Aug 3, 2010 at 9:03 PM, Dathan Pattishall wrote: > Do reads at high concurrency get a boost if I where to r

what is the expected result of changing this in storage.conf

2010-08-03 Thread Dathan Pattishall
Do reads at high concurrency get a boost if I where to raise this value? 8 32 Any benchmarks/reports showing a good sweet spot per CPU core?