2005, Benchmarking, Hardware and Software - Technology Performance Pulse

Faster remainders when the divisor is a constant: beating compilers and libdivide

Daniel Lemire

FEBRUARY 8, 2019

The division by a power of two ( / (2 N )) can be implemented as a right shift if we are working with unsigned integers, which compiles to single instruction: that is possible because the underlying hardware uses a base 2. We also published our benchmarks for research purposes. I make my benchmarking code available.

C++

C++ Benchmarking Hardware Testing

The Return of the Frame Pointers

Brendan Gregg

MARCH 16, 2024

To explain this example in more detail: The profiler periodically interrupts software execution, and for those disconnected stacks it happens to be the execution of the kernel software ("vfs*", "ext*", etc.). These partial stacks get grouped together on the left. Click here for a longer explanation. Just to name a couple of languages.

Java

Java Cache Google Hardware

SQL Server I/O Basics Chapter #2

SQL Server According to Bob

JANUARY 11, 2020

As the administrator of a SQL Server 2005 installation, you will find that visibility into the SQL Server I/O subsystem has been significantly increased.

Servers

Servers Cache Database Media

Faster remainders when the divisor is a constant: beating compilers and libdivide

The Return of the Frame Pointers

SQL Server I/O Basics Chapter #2

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