On Sun, Aug 19, 2012 at 11:09 AM, Peter Morris mrpmor...@gmail.com wrote:
Is the Windows community edition crippled for network use perhaps, or could
the problem be something else?
It's not crippled but it underperforms Cassandra on Linux. Cassandra
contains various Linux specific optimizations
@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Monday, August 20, 2012 10:03 AM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Why so slow?
Are you
Thanks, I shall get onto the developer of the library :)
On Sun, Aug 19, 2012 at 10:13 PM, Peter Schuller
peter.schul...@infidyne.com wrote:
You're almost certainly using a client that doesn't set TCP_NODELAY on
the thrift TCP socket. The nagle algorithm is enabled, leading to 200
ms
I've set NoDelay = true on the socket, and although it is much better it is
still only giving me 500 record inserts per second over a 1Gbps crossover
cable - (I now also get 200 record inserts per second over wireless.)
I would expect the cross over to have much better performance than this.
Any
-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Monday, August 20, 2012 4:49 AM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Why so slow
@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Monday, August 20, 2012 4:49 AM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Why so slow
@cassandra.apache.org
Date: Monday, August 20, 2012 9:29 AM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Why so slow?
I'm assessing how quickly on average I can deal with a single request. I
cannot believe
My misunderstanding, thanks for correcting me!
On Mon, Aug 20, 2012 at 4:32 PM, Hiller, Dean dean.hil...@nrel.gov wrote:
There is latency and throughput. These are two totally different things
even for MySQL. If you are single threaded, each request (even with MySql)
has to be delayed by
Are you inserting in bulk? Try to increase the amount of mutations you send
in a single batch, otherwise you are just measuring the TCP roundtrip time.
On 20 August 2012 17:36, Peter Morris mrpmor...@gmail.com wrote:
My misunderstanding, thanks for correcting me!
On Mon, Aug 20, 2012 at 4:32
@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Why so slow?
Are you inserting in bulk? Try to increase the amount of mutations you send in
a single batch, otherwise you are just measuring the TCP roundtrip time.
On 20 August 2012 17:36, Peter Morris
mrpmor...@gmail.commailto:mrpmor...@gmail.com wrote
Hi all
I have a Windows 7 machine (64 bit) with DataStax community server
installed. Running a benchmark app on the server gives me 7000 inserts per
second. Running the same app on a networked client gives me only 5 inserts
per second. The two computers are connected directly via a cross over
Are you using multiple client threads?
You might want to try the stress tool in the distribution.
On 08/19/2012 02:09 PM, Peter Morris wrote:
Hi all
I have a Windows 7 machine (64 bit) with DataStax community server
installed. Running a benchmark app on the server gives me 7000
inserts
No I am using a single thread. My aim at this point is to see how quickly I
can connect, post, then complete. I just find it bizarre that it goes from
7000 per second down to 5!
On Sun, Aug 19, 2012 at 8:22 PM, Dave Brosius dbros...@mebigfatguy.comwrote:
Are you using multiple client
You're almost certainly using a client that doesn't set TCP_NODELAY on
the thrift TCP socket. The nagle algorithm is enabled, leading to 200
ms latency for each, and thus 5 requests/second.
http://en.wikipedia.org/wiki/Nagle's_algorithm
--
/ Peter Schuller (@scode,
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