Reducing execution times in an on-demand network code execution system using saved machine states

A computer-implemented method comprising:

• generating a first software container provisioned with (i) code submitted by a user for execution on an on-demand code execution system and (ii) a runtime on which execution of the code depends;
• initializing the runtime on the first software container into a ready state for execution of the code;
• generating a checkpoint of the first software container at a time that the runtime on the first software container is initialized into the ready state for execution of the code;
• storing the checkpoint as an execution-ready checkpoint for the code;
• obtaining a request to execute the code, the request corresponding to the user of the on-demand code execution system;
• and
• in response to the request to execute the code, generating, from the execution-ready checkpoint for the code that reflects the checkpoint of the first software container at a time that the runtime on the first software container is initialized into the ready state for execution of the code, a second software container in the ready state for execution of the code, including the initialized runtime, and executing the code within the second software container.

One or more non-transitory computer-readable media comprising instructions that, when executed by a computing system, cause the computing system to:

• generate a first software container provisioned with (i) code submitted by a user for execution on an on-demand code execution system and (ii) a runtime on which execution of the code depends;
• initialize the runtime on the first software container into a ready state for execution of the code;
• generate a checkpoint of the first software container at a time that the runtime on the first software container is initialized into the ready state for execution of the code;
• store the check as an execution-ready checkpoint for the code;
• obtain a request to execute the code;
• and
• in response to the request to execute the code, generate, from the execution-ready checkpoint, a second software container in the ready state for execution of the code, including the initialized runtime, and execute the code within the second software container.

A system comprising:

• a data store including an execution-ready checkpoint for code submitted by a user for execution on an on-demand code execution system, wherein execution of the code depends on a runtime, and wherein the execution-ready checkpoint for the code records a state of a first software container provisioned with the code at a time that the runtime on the first software container is initialized into a ready state for executing the code;
• and
• one or more computing devices configured with specific executable instructions to:
• obtain a request to execute the code, the request corresponding to the user of the on-demand code execution system;
• and
• in response to the request to execute the code, generate, from the execution-ready checkpoint, a second software container including the initialized runtime and execute the code within the second virtual machine instance.