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ProcDump is a command-line application used for monitoring an application for CPU spikes and creating crash dumps during a spike. [2] [3] The crash dumps can then be used by an administrator or software developer to determine the cause of the spike. ProcDump supports monitoring of hung windows and unhandled exceptions. It can also create dumps ...
A system thrashing is often a result of a sudden spike in page demand from a small number of running programs. Swap-token [3] is a lightweight and dynamic thrashing protection mechanism. The basic idea is to set a token in the system, which is randomly given to a process that has page faults when thrashing happens.
Updates the software that the CPU runs on which requires patches to be released for each affected CPU and integrated into every BIOS or operating system OS/VMM Partial: Partial to full: Small to large Applied at the operating system or virtual machine level and (depending on workload) Software recompilation Poor: Partial to full: Medium to large
To understand Meltdown, consider the data that is mapped in virtual memory (much of which the process is not supposed to be able to access) and how the CPU responds when a process attempts to access unauthorized memory. The process is running on a vulnerable version of Windows, Linux, or macOS, on a 64-bit processor of a vulnerable type. [45]
In computer security, virtual machine (VM) escape is the process of a program breaking out of the virtual machine on which it is running and interacting with the host operating system. [1] In theory, a virtual machine is a "completely isolated guest operating system installation within a normal host operating system", [ 2 ] but this isn't ...
A memory leak may also happen when an object is stored in memory but cannot be accessed by the running code (i.e. unreachable memory). [2] A memory leak has symptoms similar to a number of other problems and generally can only be diagnosed by a programmer with access to the program's source code.
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This approach is described as full virtualization of the hardware, and can be implemented using a type 1 or type 2 hypervisor: a type 1 hypervisor runs directly on the hardware, and a type 2 hypervisor runs on another operating system, such as Linux or Windows. Each virtual machine can run any operating system supported by the underlying hardware.