HammerDB

OCTOBER 23, 2023

HammerDB uses stored procedures to achieve maximum throughput when benchmarking your database. HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. On MySQL, we saw a 1.5X

Benchmarking 63

Benchmarking Database Network C++ 63

Percona

APRIL 7, 2023

To illustrate this, I ran the Sysbench-TPCC synthetic benchmark against two different GCP instances running a freshly installed Percona Server for MySQL version 8.0.31 This explains, in part , how PostgreSQL performed better out of the box for this test workload. The throughput didn’t double but increased by 57%.

Tuning 145

Tuning Cache Servers Benchmarking 145

SQL Performance

NOVEMBER 18, 2019

Migrating an on-premises SQL Server instance to an Azure Virtual Machine (VM) is a common method to migrate to Azure. Microsoft has helped simplify things by creating multiple types of virtual machines. High performance compute – Fastest and most powerful CPU virtual machines. Benchmark Test. VM Types and Sizes.

Azure 76

Azure Benchmarking Storage Virtualization 76

HammerDB

FEBRUARY 25, 2021

HammerDB is a load testing and benchmarking application for relational databases. All the databases that HammerDB tests implement a form of MVCC (multi-version concurrency control). This post explains why HammerDB made the language decisions it made to make it the best performing and most usable database benchmarking software.

Programming 68

Programming Benchmarking Virtualization C++ 68

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). There's also a test and println() in the loop to, hopefully, convince the compiler not to optimize-out an otherwise empty loop. This will slow this test a little.)

Speed 103

Speed Java AWS Virtualization 103

HammerDB

APRIL 27, 2021

In this example we are using SQL Server so the message shows that everything is in order and we can proceed with running tests. This will show the benchmark options dialog. Benchmark Options. and benchmark set with the bm argument. A key aspect is being able to visualise the multithreaded nature of the Virtual Users.

Virtualization 74

Virtualization Benchmarking Database Operating System 74

Percona

MARCH 17, 2023

We have tested PMM version 2.33.0 Please note that the focus of these tests was around standard metrics gathering and display, we’ll use a future blog post to benchmark some of the more intensive query analytics (QAN) performance numbers. Virtual Memory utilization was averaging 48 GB of RAM.

Monitoring 117

Monitoring Scalability Database Cache 117

HammerDB

NOVEMBER 23, 2021

this web interface has been enhanced to add command line functionality to the service as well as extending the ability to query the database of configuration, results and timing data to be returned in JSON format, enabling a long-term repository of HammerDB benchmark data for integrating HammerDB into service based cloud environments.

Virtualization 71

Virtualization Benchmarking C++ Database 71

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. The Transaction Processing Performance Council (TPC) was founded to bring standards to database benchmarking, and the history of the TPC can be found here.

Benchmarking 63

Benchmarking Open Source C++ Cache 63

HammerDB

MARCH 25, 2023

scripts/tcl/maria/tprocc/maria_tprocc_buildschema.tcl echo "+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-" echo "RUN HAMMERDB TEST" echo "+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-"./hammerdbcli If HammerDB is running on a separate system from the database under test then you should modify this value accordingly.

C++ 84

C++ Virtualization Benchmarking Database 84

HammerDB

JANUARY 5, 2019

Some opinions claim that “Benchmarks are meaningless”, “benchmarks are irrelevant” or “benchmarks are nothing like your real applications” However for others “Benchmarks matter,” as they “account for the processing architecture and speed, memory, storage subsystems and the database engine.”

Benchmarking 40

Benchmarking Database Social Media Scalability 40

HammerDB

JULY 8, 2024

A frequently asked question with HammerDB is when a user is using the TPROC-C workload to test database failure and failover scenarios, by deliberately killing connections or shutting down the database during a workload and then restarting it. We can also configure multiple databases in the same instance to test at the same time as well.

Database 52

Database Benchmarking Virtualization C++ 52

Percona

JUNE 22, 2023

High availability works through a combination of the following: No single point of failure (SPOF) : You must eliminate any single point of failure in the database environment, including physical or virtual hardware the database system relies on that would cause it to fail. there cannot be high availability.

Availability 132

Availability Database Open Source Hardware 132

The Morning Paper

MAY 27, 2019

The work includes changes to the CHERI ISA, the C compiler, the C language runtime, the virtual memory APIs, and the CheriBSD kernel. On a context switch the kernel saves and restores user-thread register capability state, and updates virtual-physical mappings. The MIPS rows show the test suite results on a standard mips64 system.

C++ 61

C++ Hardware Virtualization Benchmarking 61

HammerDB

APRIL 19, 2023

Regardless of whether the computing platform to be evaluated is on-prem, containerized, virtualized, or in the cloud, it is crucial to consider several essential factors. Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. Operating System: Ubuntu 22.04

Performance 55

Performance Benchmarking Cache Storage 55

HammerDB

MARCH 27, 2023

introduces more lightweight database specific Docker Images, so if you only want to run benchmarks against a specific database you can go from having no benchmarking environment to reviewing your results in as little as 3 commands. How to deploy HammerDB CLI fast with Docker HammerDB v4.7 scripts/tcl/postgres/tprocc/pg_tprocc.sh

Benchmarking 52

Benchmarking Testing Database C++ 52

HammerDB

JUNE 22, 2023

Job CLI Interface Jobs can also continue to be queried directly from the CLI with additional functionality at this interface such as querying the timings of individual Virtual Users. setOption(option_a3a1672ce6814324bd80d8b84cff1557); </script> </body> </html> Summary In this post we have introduced new HammerDB v4.8

Benchmarking 58

Benchmarking C++ Virtualization Database 58

HammerDB

OCTOBER 24, 2023

BCP based load Now when we select the “Use BCP Option” We can see that we are now using an insert bulk command (although the item table being fixed at 100K rows and loaded by the monitor virtual user continues to use regular inserts). We thank @krithikasatish and @JoshInnis for this excellent contribution to HammerDB.

Servers 63

Servers C++ Benchmarking Virtualization 63

Brendan Gregg

MARCH 16, 2024

2015-2020: Overhead As part of production rollout I did many performance overhead tests, which I've described publicly before: The overhead of adding frame pointers to everything (libc and Java) was usually less than 1%, with one exception of 10%. The actual overhead depends on your workload.

Java 137

Java Cache Google Hardware 137

The Morning Paper

SEPTEMBER 24, 2020

This means for example that it can be applied to analyse source code repositories and pull requests, be used as an additional test in CI pipelines, and even give assistance in your IDE if it’s fast enough. Being static , it has the advantage that analysis results can be produced solely from source code without the need to execute the program.

Java 80

Java Cache Benchmarking Programming 80

HammerDB

DECEMBER 14, 2022

The TPC publishes an official Docker image on Docker Hub to enable the rapid deployment and testing of databases with HammerDB. This image includes example scripts to build schemas and test your databases with a single command. Our Linux test system is running a MariaDB 10.10 Our Linux test system is running a MariaDB 10.10

C++ 63

C++ Virtualization Database Benchmarking 63

HammerDB

NOVEMBER 5, 2018

If you are new to running Oracle, SQL Server, MySQL and PostgreSQL TPC-C workloads with HammerDB and have needed to investigate I/O performance the chances are that you have experienced waits on writing to the Redo, Transaction Log or WAL depending on the database you are testing. SQL> alter system flush buffer_cache; System altered.

Benchmarking 40

Benchmarking Database C++ Virtualization 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. All modern browsers are fast, Chromium and Safari/WebKit included. Lower is better.

Media 145

Media Games Education Engineering 145

Apica

MAY 10, 2019

Whatever size of company you are, performance monitoring and testing is a critical part of the success you will have. It is also worth noting that brand popularity doesn’t translate into more success if you are not testing load to confirm your streaming services will performs. Apica’s scale is enterprise-grade.

Testing 40

Testing Performance Social Media Wireless 40

HammerDB

JULY 6, 2023

database built with 1000 warehouses returned just over 700,000 NOPM illustrating the upper limit of the system and database combination we are testing. database built with 1000 warehouses returned just over 700,000 NOPM illustrating the upper limit of the system and database combination we are testing.

Virtualization 58

Virtualization C++ Database Code 58

Smashing Magazine

JUNE 3, 2022

How would we test to see if there is any difference between a good sans serif and a serif typeface with users? And today, we still have type in a digital context, but it travels through cables, wirelessly on smartphones, and in virtual reality glasses in 3D. So scientific tests for typeface legibility are often full of flaws.

Performance 123

Performance Design Best Practices Testing 123

Testsigma

JANUARY 12, 2021

Enters Cross Browser Testing, a comprehensive way of finding and fixing compatibility bottlenecks. Along with the browser, the “ Viewport ” is also a key aspect of cross browser compatibility testing as it plays a critical role in how the application will display. What Is Covered Under Cross Browser Compatibility Testing?

Website 65

Website Operating System Testing Tools Benchmarking 65

HammerDB

JUNE 27, 2024

Arguably, the most common beginning errors with database benchmarking is for a user to select a single point of utilisation (usually overconfigured) and then extrapolate conclusions about system performance from this single point. Copy Code Copied Use a different Browser #!/bin/tclsh

C++ 52

C++ Performance Benchmarking Virtualization 52

Brendan Gregg

FEBRUARY 9, 2018

Much of my testing was on Linux 4.14.11 I then analyzed performance during the benchmark ([active benchmarking]), and used other benchmarks to confirm findings. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. and 4.14.12 a month ago, before we deployed in production.

Performance 72

Performance Benchmarking Cache Tuning 72

HammerDB

JULY 6, 2024

Copy Code Copied Use a different Browser hammerdb>metstart Starting Local Metrics Agent on ubuntu after#1 hammerdb>Connecting to Agent to Display CPU Metrics Metric receive port open @ 27702 on ubuntu Connecting to HammerDB Agent @ localhost:10000 Testing Agent Connectivity.OK To run the workload on sysbench-tpcc is the following.

C++ 52

C++ Hardware Benchmarking Virtualization 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 more restchk.tcl #!/bin/sh

Virtualization 40

Virtualization Benchmarking C++ Database 40

Rigor

FEBRUARY 19, 2020

One of the key benefits of synthetic monitoring is that you can define the specific actions of a test, allowing you to walk through key flows of your application like a checkout flow or a sign-up flow, to verify its functionality and performance. Can you manually edit recorded tests or do you need to completely re-record?

Monitoring 59

Monitoring Benchmarking Mobile Testing 59

HammerDB

DECEMBER 1, 2022

In particular, after a running a test it would be ideal to have a repository where we could verify the configuration of the workload that was run, the results and any timing or transaction count data generated to bring all the log output into a central location. This happens for both a schema build and running a test. TMP/hammer.DB

Virtualization 58

Virtualization C++ Storage Database 58

HammerDB

DECEMBER 5, 2020

The HammerDB TPROC-C workload by design intended as CPU and memory intensive workload derived from TPC-C – so that we get to benchmark at maximum CPU performance at a much smaller database footprint. more transactions than system B in the fully audited benchmark then the HammerDB result was also 1.5X I.e. if system A generated 1.5X

C++ 40

C++ Benchmarking Virtualization Open Source 40

HammerDB

NOVEMBER 30, 2022

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. Vuser 1:Test complete, Taking end Transaction Count. Use a different Browser. dbset('db','mssqls').

Virtualization 45

Virtualization C++ Lambda Monitoring 45

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). There's also a test and println() in the loop to, hopefully, convince the compiler not to optimize-out an otherwise empty loop.

Speed 52

Speed Java AWS Virtualization 52

Percona

DECEMBER 20, 2018

We’ll note how some of the Linux parameter settings used OS tuning may vary according to different system types: physical, virtual or cloud. Not being entirely sure of what I was seeing during a customer visit, I set out to create some simple tests to measure the impact of triggers on database performance.

Database 51

Database Tuning Performance AWS 51