Systems and methods for sampling management across multiple cores for HTML injection

A system for controlling, by a multi-core intermediary, injection of content into a response from a server to a request of a client, comprising:

• a multi-core intermediary device comprising a plurality of packet evaluation components stored in memory and executing on a corresponding plurality of cores comprising a hardware processor, the multi-core intermediary device receiving an identification of a frequency at which the multi-core intermediary injects data into a response transmitted from a server to a client;
• a frequency calculation component establishing, for each of the plurality of packet evaluation components, an offset and a frequency based on a number of packet evaluation components in the plurality of packet evaluation components, the frequency for each packet evaluation component comprising the frequency of the multi-core intermediary device multiplied by a number assigned to a core executing the packet evaluation component, the offset for each packet evaluation component comprising a predetermined offset multiplied by the number assigned to the core executing the packet evaluation component, a combination of the established frequencies substantially similar to the frequency established for the multi-core intermediary device;
• an injection component executed by the packet evaluation component executing on the one of the plurality of cores, injecting data into a response from the server to the client at a time specified by the frequency and the offset for the packet evaluation component executing on the one of the plurality of cores
• a transmitter executed by the one of the plurality of cores, transmitting the response to the client.