Abstract: Methods and systems for performance measurements of a program are provided. An execution trace of the program may be captured and stored. The stored execution trace may be replayed in an offline mode. Performance measurements for the program may be determined based on the replaying of the execution trace in the offline mode.

Abstract: Methods and systems for performance measurements of a program are provided. An execution trace of the program may be captured and stored. The stored execution trace may be replayed in an offline mode. Performance measurements for the program may be determined based on the replaying of the execution trace in the offline mode.

Abstract: Systems and methods are described for passing a data item to and obtaining the data item from a scripting environment hosted by a host environment, wherein each environment uses a different representation of the data item. The host environment passes the data item to the scripting environment by passing a host environment representation of the data item that is hidden from developers of scripts to be executed by the scripting environment. This enables the original host environment representation of the data item to be preserved even after the data item has been passed to and from the scripting environment in the case where the scripting environment does not modify the data item, and also facilitates lazy conversion of the data item or avoidance of conversion entirely in the case where the scripting environment does not modify the data item.

Abstract: Techniques exist for imaging clients over a network, such as the preboot execution environment (PXE) protocol. However, such techniques may not scale well (e.g., using broadcast messages and having few facilities for distributing the imaging service over several servers) and limited capacity to choose a particular image for a particular client. Instead, a set of servers may be configured such that each server is assigned a set of clients, and when a client sends an imaging query, only the server to which the client is assigned sends a reply. For example, a PXE server also comprising a DHCP server may reply to queries only for clients having a DHCP reservation on the server. The servers may also be configured to refer to a network map (e.g., a manageability data store) in order to identify the role of the client and the appropriate image to direct the client to apply.

Abstract: Systems and methods are described for passing a data item to and obtaining the data item from a scripting environment hosted by a host environment, wherein each environment uses a different representation of the data item. The host environment passes the data item to the scripting environment by passing a host environment representation of the data item that is hidden from developers of scripts to be executed by the scripting environment. This enables the original host environment representation of the data item to be preserved even after the data item has been passed to and from the scripting environment in the case where the scripting environment does not modify the data item, and also facilitates lazy conversion of the data item or avoidance of conversion entirely in the case where the scripting environment does not modify the data item.

Abstract: Techniques exist for imaging clients over a network, such as the preboot execution environment (PXE) protocol. However, such techniques may not scale well (e.g., using broadcast messages and having few facilities for distributing the imaging service over several servers) and limited capacity to choose a particular image for a particular client. Instead, a set of servers may be configured such that each server is assigned a set of clients, and when a client sends an imaging query, only the server to which the client is assigned sends a reply. For example, a PXE server also comprising a DHCP server may reply to queries only for clients having a DHCP reservation on the server. The servers may also be configured to refer to a network map (e.g., a manageability data store) in order to identify the role of the client and the appropriate image to direct the client to apply.