Using Redis as Laravel Cache is not improving performance

[jonaspauleta]

Hello,

I have setted up Laravel to use Redis as cache driver.

But when I try to Cache something through Cache Facade I see no response time improvement, speaking on getting 2000 database records, from the table Posts where it has an ID, Title, Description and Timestamps, thus, taking about 500ms to retrive the data. However, when using the Redis Facade, the request times got down to about an half, to arround 250ms.

See the code examples below:

So, this way, I am getting the response in 250ms

if ($posts = Redis::get('posts.all')) {
return json_decode($posts);
}

$posts = Post::all();
Redis::set('posts.all', json_encode($posts));
return $posts;

But this way it takes 500ms

return Cache::remember('posts', 33600, function () {
return Post::all();
});

It takes also 500ms when I do this way

return Post::all();

I have just checked if Laravel was still using file as cache driver by taking a look at the folder storage/framework/cache/ and it has nothing on the posts I am Cache, then I checked Redis and when I used the Cache Facade it goes to Redis DB 1, and when I use the Redis Facade it goes to Redis DB 0

Any thoughts why using Redis as Cache have no performance gains?

[Sophist-UK]

Is Redis on the same server as PHP? Are you using localhost for the IP address?