Abstract: A computer system supports virtual memory and a paging mechanism. When a new process is created, this occupies one or more memory region. In one embodiment, at least a first memory region occupied by the process at a first virtual address has predefined, fixed, page characteristics (for example page size). It turns out that these are not optimum for the performance of the process. In order to address this, a routine in a shared library is invoked to copy the component from the first memory region into a second memory region. The second memory region either has different page characteristics from the first memory region (for example, a different page size), or is modifiable to have such different page characteristics. The second memory region is reallocated in virtual memory so that it replaces the first memory region at the first virtual address.

Abstract: A computer system supports virtual memory and a paging mechanism. When a new process is created, this occupies one or more memory region. In one embodiment, at least a first memory region occupied by the process at a first virtual address has predefined, fixed, page characteristics (for example page size). It turns out that these are not optimum for the performance of the process. In order to address this, a routine in a shared library is invoked to copy the component from the first memory region into a second memory region. The second memory region either has different page characteristics from the first memory region (for example, a different page size), or is modifiable to have such different page characteristics. The second memory region is reallocated in virtual memory so that it replaces the first memory region at the first virtual address.

Abstract: An angle measuring device for use in a gyratory compactor. The device is a self-contained unit which is placed in the bottom of the mold and the asphalt or other material being compacted is placed on top of it. Inside the device is a carrier which has two vertically aligned probes which project out from it and touch the walls of the mold. One probe is fixed to the carrier; the other can move independently of the carrier. The difference in extension between the two probes is related to the angle of compaction.