This study explores methods to improve TLB prefetching efficiency by leveraging page table locality, presenting two novel approaches - Sampling-based Free TLB Prefetching (SBFP) and Agile TLB Prefetcher (ATP). These techniques focus on optimizing TLB prefetching mechanisms without disrupting the vir

1 views • 10 slides

Explore the concepts of address translation, Translation Lookaside Buffer (TLB), TLB usage in modern processors, TLB invalidate mechanisms, and hardware design principles related to memory hierarchy using examples from the Intel i7 processor. Understanding the trade-offs and costs associated with TL

0 views • 30 slides

This presentation delves into the innovative reimagining of GPU memory hierarchy to accommodate multiple applications concurrently. It explores the challenges of GPU sharing with address translation, high-latency page walks, and inefficient caching, offering insights into a translation-aware memory

1 views • 15 slides

Exploring various aspects of virtual memory management, such as TLB misses, page table optimizations, and the role of hashed page tables, shedding light on the evolution and complexities of memory addressing in computing systems.

0 views • 51 slides

Mosaic introduces a GPU memory manager supporting multiple page sizes for improved performance. By coalescing small pages into large ones without data movement, it achieves a 55% average performance boost over existing mechanisms. This innovative framework transparently enables the benefits of both

0 views • 52 slides

TLB simulator for RISC-V systems introduced to evaluate TLB designs with realistic workloads, focusing on performance rather than cycle accuracy. The design sacrifices some accuracy for improved performance, making it suitable for meaningful software validation and profiling tasks.

0 views • 29 slides

Explore topics such as snooping-based coherence, synchronization, consistency, virtual memory overview, address translation, memory hierarchy properties, TLB functionality, TLB and cache access considerations, and cache indexing strategies in multiprocessor systems.

0 views • 22 slides

Today's lecture covers various paging mechanisms in operating systems, including optimizations for managing page tables efficiently, utilizing Translation Lookaside Buffers (TLBs) for faster translations, implementing demand-paged virtual memory, and advanced functionality like memory sharing, copy-

0 views • 35 slides

TLB misses in virtual machines can lead to high overheads with hardware-virtualized MMU. This paper proposes segmentation techniques to bypass paging and optimize memory virtualization, achieving near-native performance or better. Overheads of virtualizing memory are analyzed, highlighting the impac

0 views • 48 slides

Creating huge pages through dynamic page coalescing is effective for reducing TLB misses and memory accesses per miss, although it can lead to memory fragmentation and paging overhead. While highly beneficial on native systems, the cost-effectiveness on virtualized platforms is challenged by the inc

0 views • 22 slides

Presents a general mechanism for efficient OS management of VM pages of different sizes using superpages without requiring user intervention. Addresses limitations of existing Translation Lookaside Buffers (TLB) in managing page table entries. Discusses TLB organization and realizations in processor

0 views • 47 slides

CoPTA introduces a novel TLB architecture with contiguous pattern speculating capabilities to optimize address translation, especially for big-data workloads. By modifying TLB and LSQ to support TLB speculation, performance improvements in memory contiguity and prediction accuracy were achieved. The

0 views • 6 slides

Virtuoso is an open-source, modular simulation framework designed for virtual memory research. The framework aims to address performance overheads caused by virtual memory by proposing solutions like improving the TLB subsystem, employing large pages, leveraging contiguity, rethinking page tables, r

0 views • 29 slides