Re: real leveldb vs cassandra leveldb

2013-02-22 Thread Jonathan Ellis
If you legitimately want to move the ball forward, here's how to do it: - Create one jira ticket per idea - Attach a patch - Post your benchmark results It's important to consider changes one at a time so we have the clearest picture possible about what we are gaining. On Fri, Feb 22, 2013 at 4:

Re: real leveldb vs cassandra leveldb

2013-02-22 Thread Michael Kjellman
I can promise you it is not a matter of not being interested in performance enhancements, but there is a trade off between stability, backwards comparability, etc. Some of the changes you are proposing have merit but they fundamentally change some decisions that have been made and Jonathan needs

Re: real leveldb vs cassandra leveldb

2013-02-22 Thread Radim Kolar
Dne 13.2.2013 16:32, Jonathan Ellis napsal(a): The only point here that would make a difference in practice is leveldb using a worse hash function. how do you know that it would not make difference in practice. i have implemented some optimalization from leveldb to cassandra - different L0 leve