System for testing performance of a computer infrastructure, this computer infrastructure comprising a first application deployed in a first network zone of the computer infrastructure and a second application deployed in a second network zone of the computer infrastructure, this second network zone being distinct from the first network zone, this system comprising - a scheduler included in a third network zone communicating with the first network zone and the second network zone; - a first injector included in the first network zone and intended to inject, according to a first predefined performance test scenario, requests destined for the first application; and - a second injector included in the second network zone and intended to inject, according to a second predefined performance test scenario, requests destined for the second application; and the scheduler being configured to - install the first injector in the first network zone of the computer infrastructure and the second injector in the second network zone of the computer infrastructure as a function of a configuration file provided as input to the scheduler, the configuration file specifying the first network zone and the second network zone; - communicate to the first injector a first predefined performance test scenario, this first predefined performance test scenario being specific to the first injector and to the first network zone, the first predefined performance test scenario being specified in the configuration file provided as input to the scheduler; and - communicate to the second injector a second predefined performance test scenario, this second predefined performance test scenario being specific to the second injector and to the second network zone, the second predefined performance test scenario being specified in the configuration file provided as input to the scheduler. - a scheduler included in a third network zone communicating with the first network zone and the second network zone; - a first injector included in the first network zone and intended to inject, according to a first predefined performance test scenario, requests destined for the first application; and - a second injector included in the second network zone and intended to inject, according to a second predefined performance test scenario, requests destined for the second application; and - install the first injector in the first network zone of the computer infrastructure and the second injector in the second network zone of the computer infrastructure as a function of a configuration file provided as input to the scheduler, the configuration file specifying the first network zone and the second network zone; - communicate to the first injector a first predefined performance test scenario, this first predefined performance test scenario being specific to the first injector and to the first network zone, the first predefined performance test scenario being specified in the configuration file provided as input to the scheduler; and - communicate to the second injector a second predefined performance test scenario, this second predefined performance test scenario being specific to the second injector and to the second network zone, the second predefined performance test scenario being specified in the configuration file provided as input to the scheduler.