Handling long-running or heavy tasks inside a a requests is something you should avoid.

• It blocks the available processes for other requests.
• browser request timeout
• ...

Instead of using one of the job queue implementations available for perl

• Resque
• ActiveMQ
• ZeroMQ
• Gearman
• TheSchwartz
• ...

i decided to reuse/abuse my database.

Add a 'job' table

CREATE TABLE "job" (
  "id" serial NOT NULL,
  "test_id" integer NOT NULL,
…