Google Inc.

Daniel Kenneth Clifford

William Alexander Drewry

Sumit Gwalani

Glenn Wilson

Mattias Stefan Nissler

Christopher Masone

Hannes Payer

Yang Guo

Toon Wim Jan Verwaest

Ben Titzer

Michael Starzinger

Michael Vincent Stanton

Benedikt Meurer

Jakob Martin Rüdiger Kummerow

Jakob Martin Rudiger Kummerow

A computer-implemented method can include receiving a set of software instructions for execution by a computing device and compiling the set of software instructions to generate a set of executable instructions. The compiling can include identifying a first memory object allocation instruction. The method can also include executing the set of executable instructions, where the executing includes allocating, in a young garbage collection generation, a plurality of memory objects with the first memory object allocation instruction. The method can further include determining a survival rate of the plurality of memory objects allocated by the first memory object allocation instruction. Responsive to the survival rate being larger than a survival rate threshold, the method can include replacing, in the set of executable instructions, the first memory object allocation instruction with a second memory object allocation instruction that is configured to directly allocate memory objects in an old garbage collection generation.

Memory object pretenuring

A computer-implemented method for compilation of applications can include receiving a set of software instructions and traversing the set of software instructions based on a control-flow order of the set of software instructions. The traversing can include identifying a first allocation instruction in the set of software instructions, the first allocation instruction being configured to allocate a first amount of memory for a first object and identifying a second allocation instruction in the set of software instructions, the second allocation instruction being configured to allocate a second amount of memory for a second object. The method can include determining that the first allocation instruction dominates the second allocation instruction and, in response to the determining, combining the first allocation instruction and the second allocation instruction into a folded allocation instruction that allocates the first amount of memory and the second amount of memory in a single memory allocation operation.

Memory allocation folding based on object dominance

A system and method is disclosed for sharing type information between object maps. When an object data structure is modified in a dynamic programming environment to change an initial number of object properties a child object map for the modified object data structure is generated based on a parent object map for the unmodified object data structure, and a descriptor array associated with the base object map is shared with the child object map. The descriptor array is dynamically altered according to the modified object data structure, and access to the descriptor array is limited from the parent object map in accordance with the initial number of object properties of the unmodified object data structure.

Sharing property descriptor information between object maps

Systems and methods for configuring browser policy settings on client computing devices are provided. In some aspects, a method includes receiving login credentials from a client computing device. The client computing device includes a browser. The method also includes transmitting browser policy data associated with the login credentials to the client computing device. The browser policy data identifies browser policy settings to be installed on the browser. The browser policy settings identified by the browser policy data include four or more of: compliance settings, behavioral settings, browser/software applications, permission to access one or more websites, restrictions on accessing one or more websites, read permission in a remote document storage unit accessible via the browser, or write permission in a remote document storage unit accessible via the browser.

Configuring browser policy settings on client computing devices

Representation of an array in dynamically-typed program code at runtime is provided. Program code is accessed at runtime. An instruction for adding, updating or deleting one or more elements for an array is detected within the code. The array is associated with a first kind of element comprising a first representation and packing format. A second kind of element is determined based on at least one of the instruction or the one or more elements, the second kind of element comprising at least one of a second representation or packing format. A determination is made that the first and second kind of elements are not consistent, based on an inconsistency between the first and second representation formats or packing formats. The array is converted so that the first and second kind of elements are consistent. One or more array elements are added, updated or deleted based on the instruction.

Representation and conversion of dynamically-typed arrays

Growing community of inventors

Baldham, Germany

Daniel Kenneth Clifford