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

JUNE 22, 2023

Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized new Jobs on-disk database /opt/HammerDB-4.8/DATA/hammer.db Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized new Jobs on-disk database /opt/HammerDB-4.8/TMP/hammer.DB So for example to change this to hammer.db DATA/hammer.db

Benchmarking 58

Benchmarking C++ Virtualization Database 58

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

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

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

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

MARCH 27, 2023

Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized SQLite on-disk database /home/hammerdb/HammerDB-4.7/TMP/hammer.DB Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized SQLite on-disk database /home/hammerdb/HammerDB-4.7/TMP/hammer.DB Copy Code Copied Use a different Browser.

Benchmarking 52

Benchmarking Testing Database C++ 52

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. Virtual Users.

Architecture 40

Architecture Virtualization Open Source C++ 40

All Things Distributed

DECEMBER 20, 2017

That was the provocative thesis of a much-talked-about article from 2003 in the Harvard Business Review by the US publicist Nicolas Carr. The company meanwhile has 15 autonomous interdisciplinary teams working constantly to test and explore new services. How companies can use ideas from mass production to create business with data.

Artificial Intelligence 72

Artificial Intelligence Social Media Logistics AWS 72

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

O'Reilly Software

MARCH 7, 2018

This is mixing concerns and leads to code that becomes strongly coupled, monolithic, hard to write, hard to read, hard to evolve, hard to test, and hard to reuse. In 2003, Gregor Hohpe and Bobby Woolf released their book Enterprise Integration Patterns. file , jms , test ; }. The rise of enterprise integration patterns.

Transportation 72

Transportation Java Programming Architecture 72

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

Adrian Cockcroft

JUNE 21, 2022

We ran what our datacenter designer Rob Snevely (who wrote a Blueprint book that contains a chapter by Elizabeth Purcell) named the Can of Worms Project, where we would install and run performance tests on large server configurations that were more customer-like and complex than the usual test or benchmarking environments that engineering teams ran.

Tuning 52

Tuning Benchmarking Engineering C++ 52