Grails Service Calls From TagLib Overhead

Question

I have a really simple taglib and service:

class TestTagLib {
    FooService fooService

    static namespace = "bar"

    def test = {
        out << "text"
    }
}

class FooService {
    //This is an empty method that does absolutely nothing
    void foo() { }
}

If I repeat this taglib 20 times on a page, it executes instantly. But now if call that service:

...

fooService.foo()
out << "test"

...

Suddenly those 20 taglibs cause the page to take 2 seconds to load. This doesn't seem right that the overhead of a service call would be so high...or is it? How would I even go about debugging this?

Answer 1

Service methods are by default transactional. So, for every call of fooService.foo() you are getting the overhead of a complete database transaction creation and commit.