neo4j-perf | Performance Tests of Neo4j and Neo4j.rb | Graph Database library
kandi X-RAY | neo4j-perf Summary
kandi X-RAY | neo4j-perf Summary
Performance Tests of Neo4j and Neo4j.rb
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- Generates a file .
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QUESTION
I did read a following article:
http://surbhistechmusings.blogspot.com/2016/05/neo4j-performance-tuning.html
I come across
We loaded the files into OS cache
It is about loading file (on local disk) into OS cache.
Could you explain me how to do such loading?
And tell me please if such cache is in-memory?
What is cause that it can help?
ANSWER
Answered 2018-May-07 at 15:55Actually this is done simply by reading files most of the time.
Actually modern OSes fill the unused parts of your RAM with filesystem caches. And this is done when apps open files : the first time data is read from disk but then it is (transparently) read from memory. This is why an app you've just closed seems to start much faster the next time you launch it provided you did not shut down your computer between the two launches.
Many software rely on this mechanism like Kafka, PostgresSQL and so on.
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Install neo4j-perf
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
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