18548318. MEMORY ADDRESS COMPRESSION WITHIN AN EXECUTION TRACE simplified abstract (MICROSOFT TECHNOLOGY LICENSING, LLC)

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MEMORY ADDRESS COMPRESSION WITHIN AN EXECUTION TRACE

Organization Name

MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor(s)

Jordi Mola of Bellevue WA (US)

MEMORY ADDRESS COMPRESSION WITHIN AN EXECUTION TRACE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18548318 titled 'MEMORY ADDRESS COMPRESSION WITHIN AN EXECUTION TRACE

Simplified Explanation

The abstract describes a method for compressing memory addresses within an execution trace by referencing a Translation Lookaside Buffer (TLB) entry. The microprocessor logs TLB entries and cache entries to optimize memory address storage and retrieval.

  • The microprocessor identifies a TLB entry within a TLB slot, mapping a virtual memory page to a physical memory page.
  • The microprocessor logs the TLB entry by recording the virtual address, a unique identifier for the TLB entry, and subsequently logs a cache entry by matching the physical memory page identification with the TLB entry and recording the identifier and an offset.

Potential Applications

This technology could be applied in various fields such as computer architecture, operating systems, and memory management systems.

Problems Solved

1. Efficient memory address storage and retrieval. 2. Optimization of memory usage within a microprocessor.

Benefits

1. Improved performance by reducing memory access times. 2. Enhanced memory management capabilities. 3. Increased efficiency in handling memory addresses.

Potential Commercial Applications

Optimizing memory usage in microprocessors for faster and more efficient computing.

Possible Prior Art

One possible prior art could be the use of TLBs and cache memory in computer systems to improve memory access times and overall system performance.

Unanswered Questions

How does this technology impact power consumption in microprocessors?

This article does not address the potential impact of this technology on power consumption in microprocessors. Implementing additional logging and matching processes may have an effect on power usage.

Are there any limitations to the number of TLB entries that can be logged using this method?

The article does not specify any limitations on the number of TLB entries that can be logged. It would be important to understand if there are any constraints on the scalability of this method.


Original Abstract Submitted

Compressing memory addresses within an execution trace via reference to a translation lookaside buffer (TLB) entry. A microprocessor identifies a TLB entry within a TLB slot, the TLB entry mapping a virtual memory page to a physical memory page. The microprocessor initiates logging of the TLB entry by initiating logging of at least a virtual address of the virtual memory page, and an identifier that uniquely identifies the TLB entry from among a plurality of live TLB entries. Subsequently, the microprocessor identifies a cache entry within a memory cache slot, the cache entry comprising a physical memory address corresponding to a cache line. The microprocessor initiates logging of the cache entry by matching a physical memory page identification portion of the physical memory address with the TLB entry, and then initiates logging of at least the identifier for the TLB entry and an offset portion.