HammerDB

MAY 10, 2021

HammerDB Variable or Step Workloads are an advanced testing feature that enables you to automatically vary the load on the database over a period of time. When taking this approach you would not focus on the test result but instead monitor the databases ability to cope with the variation in demand and transaction response times.

Virtualization 52

Virtualization C++ Database Monitoring 52

HammerDB

MAY 5, 2019

Fortunately the HammerDB TPC-C/OLTP workload intentionally has a great deal of contention between threads and is therefore ideal for testing spin-locks. So to test I took a system with Skylake CPUs and all storage on a P4800X SSD. In the recent MySQL 8.0.16 model name : Intel(R) Xeon(R) Platinum 8180 CPU @ 2.50GHz. 23-generic x86_64).

Testing 49

Testing Tuning Latency Storage 49

HammerDB

NOVEMBER 30, 2022

Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. print(z," VU TEST") . print("TEST SEQUENCE COMPLETE"). Vuser 1:Timing test period of 1 in minutes Vuser 2:RUNNING Vuser 2:Initializing xtprof time profiler Vuser 2:Processing 10000000 transactions with output suppressed. >hammerdbcli py.

Virtualization 45

Virtualization C++ Lambda Monitoring 45

HammerDB

NOVEMBER 23, 2021

Copyright (C) 2003-2021 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration Initialized new SQLite on-disk database /tmp/hammer.DB Copyright (C) 2003-2021 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration Initialized new SQLite on-disk database /tmp/hammer.DB

Virtualization 71

Virtualization Benchmarking C++ Database 71

HammerDB

JULY 16, 2021

The way we measure this is through a ‘performance profile’ This simply means that we run a series of tests incrementally increasing the system load until we find the peak performance. Plotting these data points enables us to understand the scalability of the database software being tested on that system. and MySQL 8.0.25

Virtualization 58

Virtualization Performance C++ Database 58

HammerDB

JULY 5, 2022

To do this, we are going to rewrite HammerDB in Python and run a series of tests on a 2 socket Intel(R) Xeon(R) Platinum 8280L server to see how and why Tcl is 700% faster than Python for database benchmarking*. Building the Test Schema and Timing Script. Background and Concepts. Use a different Browser. Use a different Browser.

Benchmarking 98

Benchmarking Database C++ Virtualization 98

HammerDB

OCTOBER 12, 2018

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. InnoDB is the storage engine that will deliver the best OLTP throughput and should be chosen for this test. . HammerDB difference from Sysbench.

Best Practices 40

Best Practices Scalability Performance C++ 40

The Symphonia

JANUARY 21, 2019

Back in the Dim And Distant Past of 2003 I even co-led an open source project that brought some at-the-time interesting innovations to this area. You tell it where to get some source code from, give it a bunch of scripts to run in a shell environment (build, package, test, etc.), Build + Test ? It’s cheap, simple, does the job.

AWS 40

AWS Open Source Lambda Serverless 40

HammerDB

JULY 8, 2019

HammerDB already has 2 interfaces with which to interface with the commands to build and test databases using the GUI interface or CLI. The following test script shows how this interaction can be done also including deliberate errors to demonstrate error handling. From HammerDB version 3.2 hammerdbws HammerDB Web Service v3.2

Virtualization 40

Virtualization Benchmarking C++ Database 40

HammerDB

NOVEMBER 30, 2018

Copyright (C) 2003-2018 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration hammerdb>librarycheck Checking database library for Oracle Success. The agent directory contains the agent code to be run on the system under test to gather the CPU utilisation information. HammerDB CLI v3.1

Architecture 40

Architecture Virtualization Open Source C++ 40

HammerDB

OCTOBER 8, 2018

This post gives a HOWTO guide on system configuration for achieving top levels of performance with the HammerDB PostgreSQL TPC-C test. As the name indicates the turbostat tool can be used to monitor the CPU turbo frequencies. . It is your test so you can set the options as you see fit. Use –W to test the password.

Best Practices 40

Best Practices Scalability Performance Hardware 40

The Agile Manager

OCTOBER 28, 2007

That is, a team can work in such a way that it is less likely to cause problems for itself, by e.g., writing unit tests, having continuous integration, developing to finely grained statements of business functionality, embedding QA in the development team, and so forth. Doing these isn’t the same as increasing the probability of success.

Government 40

Government Retail Energy Code 40

Adrian Cockcroft

JUNE 21, 2022

The SE toolkit was fast, had no memory leaks (monitoring scripts could run for years) and let me implement lots of cool performance monitoring ideas. Allan also introduced me to Richard McDougall, who had worked with Allan for Sun Australia, and Richard visited for a rotation to build some monitoring tools.

Tuning 52

Tuning Benchmarking Engineering C++ 52

SQL Server According to Bob

JANUARY 11, 2020

Pull-the-plug ​​ power ​​ outage testing ​​ Power outage testing ​​ is ​​ a fundamental and critical part of the administrator’s data safety and integrity requirements. ​​ Incorrect configurations lead to data loss.

Servers 40

Servers Cache Database Media 40