That's why we move things off-heap.
On Thu, Dec 19, 2013 at 1:57 PM, Roman Vasilyev <rvasil...@netflix.com>wrote: > One of the core problems what I can see is garbage collection, it blocks > whole server just to clean memory, same stuff with periods of it. On high > load you constantly have to control does the heap close to the limit > specified on start. > > > ------ Original Message ------ > From: "Oscar Bonilla" <6f6...@gmail.com> > To: "Roman Vasilyev" <rvasil...@netflix.com> > Cc: dev@cassandra.apache.org > Sent: 12/19/2013 11:50:10 AM > Subject: Re: C* engine > > Roman, >> >> I would start with figuring out exactly how much performance you’re >> losing because of the language and whether there is lower hanging fruit. >> For the record, I *hate* java, but my experience in performance work has >> taught me that with some exceptions, it’s rarely the language where the >> performance sink is. >> >> Do you have any data that points to Java as being a performance problem? >> >> Cheers, >> >> -Oscar >> >> On Dec 19, 2013, at 11:46 AM, Roman Vasilyev <rvasil...@netflix.com> >> wrote: >> >> Never will say that Erlang will be faster and memory consumption will >>> be lower than native code. Rest of it totally agree with Brandon, in a few >>> words I'm talking about serious parallel project on improving Cassandra >>> basics. >>> >>> ------ Original Message ------ >>> From: "Andy Cobley" <acob...@computing.dundee.ac.uk> >>> To: "<dev@cassandra.apache.org>" <dev@cassandra.apache.org>; "Roman >>> Vasilyev" <rvasil...@netflix.com> >>> Sent: 12/19/2013 11:40:55 AM >>> Subject: Re: C* engine >>> >>> The question just as easily be asked, why not rewrite it in Erlang ? >>>> Probably lots of advantages to be gained there, the ability to upgrade on >>>> the fly, native message passing, functional programming paradigm ? >>>> >>>> But as Brandon says, you would be throwing away so much work, would it >>>> be worth it ? >>>> >>>> Andy >>>> >>>> >>>> On 19 Dec 2013, at 19:22, Roman Vasilyev <rvasil...@netflix.com> >>>> wrote: >>>> >>>> Hello, >>>>> >>>>> Don't want to rise "holy war". Just let me share my crazy thoughts. >>>>> I believe it could improve Cassandra speed and robustness. >>>>> >>>>> What people will say if I propose to have Cassandra engine written in >>>>> C/C++, and this engine will give you ability to run extensions in Java, >>>>> Groovy and bunch other languages like Perl/Python/Ruby? >>>>> >>>>> I just want to understand for myself does this solution will be >>>>> useful or I'm looking in wrong direction? >>>>> >>>>> Thank you for reading. >>>>> >>>> >>>> >>>> The University of Dundee is a Scottish Registered Charity, No. >>>> SC015096. >>>> >>>> >>>> >>> >> >
