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Status Delivered
Workspace Storage Scale (formerly known as GPFS)
Created by Guest
Created on Apr 15, 2019

RELATED IDEAS

Improve memory-mapped file performance

Memory-mapped files (mmaps) provide a flexible way to handle larger-than memory data.

However, reading and writing speed of mmaps on a GPFS file system is worse than using single disk or network-mounted filesystems. It would be great if this could be improved.

Idea priority High
  • Guest
    Reply
    |     Sep 30, 2020

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - IBM Spectrum Scale
    Product - Spectrum Scale (formerly known as GPFS) - Public RFEs
    Component - Product functionality

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - IBM Spectrum Scale
    Product - Spectrum Scale (formerly known as GPFS) - Public RFEs
    Component - Technical Foundation

  • Guest
    Reply
    |     Jun 28, 2019

    Work is currently under way to improve the use of mmap

  • Guest
    Reply
    |     Apr 15, 2019

    Attachment (Use case): A simple python script for testing speed of writing into a memory-mapped file.

    test_mmap.py
    test_mmap.py
     test_mmap.py
    Open full size
    test_mmap.py

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