Entityfreamework core 2 slow in first query

Question

1.00/5 (1 vote)

See more:

I'm working on an desktop app using (wpf , EF Core) and i note that response little bit slow in first query when application run first time , then every thing ok
what is the cause of this problem? and how can i handel it ?

What I have tried:

i can't solve it , the problem still

Posted 16-Feb-19 17:52pm

Ahmed Dabas

Updated 16-Feb-19 19:43pm

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Dave Kreskowiak · Answer 1 · 2019-02-16T18:15:00

Solution 1

That is the "warm up time" for EF. It's doing a first connection to the database and verifying that the structure matches what it expects in order to work with your context.

There is nothing you can do to "fix" that.

Posted 16-Feb-19 18:15pm

Dave Kreskowiak

Comments

Maciej Los 17-Feb-19 16:38pm

5ed!

Gerry Schmitz · Answer 2 · 2019-02-16T19:44:00

Solution 2

You run a scheduler that every morning fires off the "first query of the day" while everyone else is sleeping.

Posted 16-Feb-19 19:44pm

Gerry Schmitz

Comments

Maciej Los 17-Feb-19 16:40pm

:laugh:
I like answers like that.