I will send you the 2 slow queries with profile.

Best regards,
Ryan John Velasco

----- Original Message -----
From: "Michael Hunger" <[email protected]>
To: [email protected]
Sent: Tuesday, March 17, 2015 9:20:12 PM
Subject: Re: [Neo4j] How does query profiler work?

There is some more logging of queries in more recent versions. 


in neo4j.properties 



dbms.querylog.enabled=true 
# in ms 
dbms.querylog.threshold=500 
dbms.querylog.path=data/log/queries.log 


in neo4j 2.2 you can prepend EXPLAIN to a query which will show you the query 
plan visually (in the browser) or textually (in Neo4j shell) it doesn't run the 
query. 


If you use PROFILE it will run the query and show also the db-hits. 


As you haven't shared your queries or data model, there is not more I can help 
you with. 


Cheers; Michael 







Am 17.03.2015 um 05:14 schrieb Ryan Velasco < [email protected] >: 


Thanks for the reply. 
How do you do query profiling? I have observed that if sql server is eating the 
memory the neo4j query goes slow. Maybe in production it will be different. 
Because we plan to dedicate a machine with only neo4j installed on it. Do you 
have a good specs for a computer? We plan to use a machine with Core i7 and 8GB 
of memory. Is there a feature that I can view history of queries made and the 
time it took to retrieve the data? 


Thanks, 
Ryan 

On Monday, March 16, 2015 at 7:33:08 PM UTC+8, Michael Hunger wrote: 


Please always include the information about the actual queries you run and the 
actual dataset information. 
Otherwise no one can help you 


and you should also include the profiling info of your two queries. 


Also try to measure query performance from the Neo4j-shell to see the least 
impact from drivers or additional requests in the neo4j-browser. 
You can also use: http://localhost:7474/webadmin/#/console/ for that query time 
testing. 


Michael 





Am 16.03.2015 um 10:43 schrieb Ryan Velasco < [email protected] >: 


Hello, 


If I run a query 2 it goes faster but if I run it with other queries the 2nd 
time, it is still slow. 


Best Regards, 
Ryan <Run with many queries.png> <Run the queries many times alone.png> 



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