We are using PostgreSQL version 9.4 database on Amazon EC2. All of our queries ran very slow on the first attempt, until after it was cached they were very fast, but it was not Mediation because it
Tag: performance
Performance Test Tool Gnu Gprof
1 Introduction
Improving the performance of an application is a very time-consuming and labor-intensive work, but it is usually not very obvious which functions in the program consume most of the
Performance – Accelerate compilation time using USB key?
Since the compilation is mainly to read small files, I would like to know whether buying a fast USB key can speed up the compilation time, compared with standard SATA drives, and the price is lower
How to accelerate .NET assembly loading performance
We have a product that contains about 50 assemblies (DLL files), most of which are required and loaded when the main executable file starts. The result is even on a medium-speed machine , The load
Performance – Oracle: Executive Plan: Is it reliable?
Please see the execution plan below.
It says that Oracle will start from the index range scan…
But it’s impossible because it doesn’t have any values to look up, Because it reads these values
Performance – Why is Cassandra secondary index on 350K lines so slow?
I have a column family with a secondary index. The secondary index is basically a binary field, but I am using a string. The field named is_exported can be “true “Or “false”. After the request, all
Jenkins performance plugin for Jmeter-editing performance report table
I am using Jenkins Performance Plugin for Jmeter (version 3.1) to integrate and report Jmeter results. In the performance report (specific version), I get the Performance Breakdown table (and respo
Performance – Monitor all API response time Serverice quality, which one is better close to median, span 5-95 or higher?
I want to monitor the response time of the API. I can use the average, median and other methods to monitor. But I face the following problems:
Average Question
If one of the requests ta
Performance – What is the fastest way to apply functions on each line of matrix?
I have searched so far and I know there are several methods (1, 2, 3, 4) I have used the following code so far:
Fv_calc(:,2) = arrayfun(@(n) MaxPositiveRoot2DegreePolynomial(QuadraticCoeffici
Locust Performance Module Talking
I came into contact with the Locust performance module today, let’s introduce the installation and simple applications
1. Installation method: pip install Locust
Locust supports Python