HammerDB

APRIL 27, 2021

This will show the benchmark options dialog. Benchmark Options. and benchmark set with the bm argument. In the example below we have modified the SQL Server, number of warehouses to build and the virtual users to build them. A key aspect is being able to visualise the multithreaded nature of the Virtual Users.

Virtualization 73

Virtualization Benchmarking Database Operating System 73

HammerDB

MARCH 25, 2023

Note that by default the build script will query the number of CPUs on the system that HammerDB is running and configure 5X this number for the number of warehouses to build. If HammerDB is running on a separate system from the database under test then you should modify this value accordingly. scripts/tcl/maria/tprocc/maria_tprocc.sh

C++ 83

C++ Virtualization Benchmarking Database 83

The Morning Paper

MAY 27, 2019

And this all has to work for whole-system executions, not just the C-language portion of user processes. The work includes changes to the CHERI ISA, the C compiler, the C language runtime, the virtual memory APIs, and the CheriBSD kernel. The MIPS rows show the test suite results on a standard mips64 system.

C++ 61

C++ Hardware Virtualization Benchmarking 61

Percona

APRIL 12, 2023

Instead of relational (SQL) databases defined primarily through a hierarchy of related sets via tables and columns, their non-relational structure used a system of collections and documents. Though still not “profitable” by many benchmarks, it’s a lot closer to being so, perhaps in a big way.)

Open Source 83

Open Source Programming Database Servers 83

Brendan Gregg

MARCH 16, 2024

The problem is that this system has a default libc that has been compiled without frame pointers, so any stack walking stops at the libc layer, producing a partial stack that's missing the application frames. This is pretty common and usually goes unnoticed as the flame graph looks ok at first glance.

Java 145

Java Cache Google Hardware 145

Adrian Cockcroft

JUNE 21, 2022

Photo by Adrian I spent six years at Cambridge Consultants, building some interesting systems, managing our Sun workstations and learning a lot, but by then Sun had opened a sales office across the street, and I wanted to find out what they were going to release next, before everyone else.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). Microbenchmark os::javaTimeMillis() on both systems.

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). Microbenchmark os::javaTimeMillis() on both systems.

Speed 40

Speed Java AWS Virtualization 40

HammerDB

NOVEMBER 30, 2018

Programming Languages. When you download the source code for HammerDB you can see that the programming language it is written in is called TCL. The agent directory contains the agent code to be run on the system under test to gather the CPU utilisation information. Virtual Users.

Architecture 40

Architecture Virtualization Open Source C++ 40

Alex Russell

APRIL 29, 2021

As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. With each team, benchmarks lost are understood as bugs. Provides support for "unread counts", e.g. for email and chat programs.

Media 145

Media Games Education Engineering 145

Percona

SEPTEMBER 1, 2023

It is essentially a set of instructions or a program that is executed automatically in response to specific events or actions occurring within the database. This can affect the overall performance of your database system, potentially leading to slower response times. What is a Trigger in MySQL? KiB in the table cache, 611.12

Cache 62

Cache Database Games Healthcare 62

Enprowess

SEPTEMBER 20, 2021

Like React, Vue features two-way binding, uses components and a virtual DOM. They use lazy loading to extend performance rates and reduce loading times and code refreshes via virtual DOMs. It provides scaffolding which can be used with build systems such as Browserify or Webpack (or no build system at all). What is React?

Open Source 52

Open Source Mobile Scalability Google 52

SQL Server According to Bob

JANUARY 11, 2020

​​ Without limiting the rights under copyright, no part of this document may be reproduced, stored in or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of Microsoft Corporation.

Servers 40

Servers Cache Database Media 40

SQL Server According to Bob

JANUARY 11, 2020

This will help you increase system performance and avoid I/O environment errors. Important When planning, deploying, and maintaining a Microsoft SQL Server installation, ensure that the I/O system supports all the factors outlined in this article. The modifications persist even in the event of a system failure.

Servers 40

Servers Cache Media Hardware 40