2005, Operating System and Traffic - Technology Performance Pulse

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2005

Operating System

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The Surprising Effectiveness of Non-Overlapping, Sensitivity-Based Performance Models

John McCalpin

APRIL 2, 2020

The presentation discusses a family of simple performance models that I developed over the last 20 years — originally in support of processor and system design at SGI (1996-1999), IBM (1999-2005), and AMD (2006-2008), but more recently in support of system procurements at The Texas Advanced Computing Center (TACC) (2009-present).

Benchmarking

Benchmarking Performance Latency Architecture

SQL Server On Linux: Forced Unit Access (Fua) Internals

SQL Server According to Bob

DECEMBER 18, 2018

kernel additions to the Linux XFS file system can send the Fua bit along with the write request so “forced flush” behavior is not needed and the performance of writes is significantly improved. Testing shows that by using the Fua bit with the data, write request can reduce the I/O traffic by ~50% for a SQL Server, write-intensive workload.

Servers

Servers Media Cache Storage

The Surprising Effectiveness of Non-Overlapping, Sensitivity-Based Performance Models

SQL Server On Linux: Forced Unit Access (Fua) Internals

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