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From aaron morton <aa...@thelastpickle.com>
Subject Re: Are Writes disk-bound rather than CPU-bound?
Date Tue, 23 Jul 2013 09:04:18 GMT
> “/Insert-heavy workloads will actually be CPU-bound in Cassandra before being
> memory-bound/”
What is the source for that ? 

> This is because everything is
> *first *written to the commit log *on disk*. Any thoughts??
Pretty much. 

Cheers

-----------------
Aaron Morton
Cassandra Consultant
New Zealand

@aaronmorton
http://www.thelastpickle.com

On 22/07/2013, at 8:58 AM, hajjat <hajjat@purdue.edu> wrote:

> “/Insert-heavy workloads will actually be CPU-bound in Cassandra before being
> memory-bound/”
> 
> However, from reading the documentation
> (http://www.datastax.com/docs/1.2/dml/about_writes) it seems the disk is the
> real bottleneck in Writes rather than the CPU. This is because everything is
> *first *written to the commit log *on disk*. Any thoughts??
> 
> 
> 
> --
> View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Are-Writes-disk-bound-rather-than-CPU-bound-tp7589191.html
> Sent from the cassandra-user@incubator.apache.org mailing list archive at Nabble.com.


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