1. A method comprising: identifying, by a first application executed by a processing device of a computing system, an event type of event to be measured with respect to performance of a second application being monitored; issuing, by the first application, a first virtual file system call comprising the identified event type as a parameter, wherein the first virtual file system call further comprises a task parameter identifying a task of the second application and a processor parameter, wherein the identified event type corresponds to a cumulative counter, and wherein the cumulative counter is a data field to aggregate a value of a first hardware counter for a first processor, and a value of a second hardware counter for a second processor; receiving, by the first application, a file descriptor for the cumulative counter of the identified event type in response to the first virtual file system call and before the second application being monitored begins execution; subsequent to receiving the file descriptor of the cumulative counter of the identified event type, causing, by the first application, the second application to begin the execution, wherein the first hardware counter is to perform measurements for the first processor with respect to the identified task during the execution of the second application based on performance characteristics of the second application for the identified event type, and the second hardware counter is to perform measurements for the second processor with respect to the identified task during the execution of the second application based on the performance characteristics of the second application for the identified event type; determining, by the first application, the second application being monitored has completed execution; after the execution of the second application is completed, issuing, by the first application, a second virtual file system call including the file descriptor for the cumulative counter of the identified event type as a parameter, wherein a value of the cumulative counter is an aggregation of the value of the first hardware counter and the value of the second hardware counter; and receiving, by the first application, the value of the cumulative counter of the identified event type from an operating system in response to the second virtual file system call, wherein the second virtual file system call to obtain the value of the cumulative counter of the identified event type is performed without interrupting the execution of the second application.