HammerDB

OCTOBER 18, 2019

HammerDB doesn’t publish competitive database benchmarks, instead we always encourage people to be better informed by running their own. So over at Phoronix some database benchmarks were published showing PostgreSQL 12 Performance With AMD EPYC 7742 vs. Intel Xeon Platinum 8280 Benchmarks .

Benchmarking 63

Benchmarking Performance Hardware C++ 63

Percona

DECEMBER 20, 2023

Unfortunately, the performance in benchmarks is almost the same as for 4KB pages. Please check out the Why Linux HugePages are Super Important for Database Servers: A Case with PostgreSQL blog post for more information. Setup I recommend starting with 2MB huge pages because it’s trivial to set up.

C++ 95

C++ Virtualization Benchmarking Database 95

HammerDB

DECEMBER 5, 2020

compared to previous releases is that the workload names have changed from TPC-C and TPC-H to TPROC-C and TPROC-H respectively and therefore a key question is how are the v4.0 The simple answer is nothing, the workloads are exactly the same workloads derived from the TPC-C and TPC-H specifications and HammerDB v4.0

C++ 40

C++ Benchmarking Virtualization Open Source 40

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 62

Benchmarking Open Source C++ Cache 62

The Morning Paper

MAY 27, 2019

CheriABI: enforcing valid pointer provenance and minimizing pointer privilege in the POSIX C run-time environment Davis et al., The process model, user-kernel interactions, dynamic linking, and memory management concerns are all in scope, and the protection spans the OS/DBMS boundary. ASPLOS’19. CHERI implementation.

C++ 61

C++ Hardware Virtualization Benchmarking 61

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

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., A typical architecture diagram for one of these services looks like this: Suitably armed with a set of benchmark microservices applications, the investigation can begin! ASPLOS’19.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Percona

JANUARY 2, 2024

We decided to run a few benchmarks to understand how the thread pool affects long-running transactions. The thread pool dispatcher seems to be the bottleneck and is highly affected by the execution time of queries being processed, even if forcing a reconnection. For this reason, I’ve set up a server with the following specs: r6a.2xlarge

Benchmarking 82

Benchmarking Servers Tuning C++ 82

Percona

OCTOBER 12, 2023

The kubectl-flame container has the hostPID option enabled, and this provides visibility of the underlying Kubernetes node process ID namespace to collect system events from running processes on the host. MySQL is not written in NodeJS, but we specify –lang node to launch the perf profiler, which is compatible with C/C++.

Code 106

Code Tuning C++ Benchmarking 106

Percona

JULY 19, 2023

Well, “easy” if you know just a tiny bit of C++. How would you integrate some new fancy processing library into MySQL without having to recreate the complexities in pure SQL? Our function will implement a ULID generator using a C++ library from ChrisBove/ulid. mkdir ~/percona-server-8.0.32-24/plugin/ulid/

C++ 78

C++ Servers Benchmarking Best Practices 78

HammerDB

FEBRUARY 25, 2021

HammerDB is a load testing and benchmarking application for relational databases. However, it is crucial that the benchmarking application does not have inherent bottlenecks that artificially limits the scalability of the database. Basic Benchmarking Concepts. To benchmark a database we introduce the concept of a Virtual User.

Programming 67

Programming Benchmarking Virtualization C++ 67

HammerDB

MARCH 25, 2023

Docker build, example CLI scripts were added to build and run the TPROC-C workload in the Tcl language. these were enhanced to also add Python based scripts, and to include scripts for both TPROC-C and TPROC-H and a driver script for Linux environments. With the HammerDB v4.5 In HammerDB v4.6 With HammerDB v4.7

C++ 83

C++ Virtualization Benchmarking Database 83

HammerDB

APRIL 19, 2023

GHz 4th Generation Intel Xeon Scalable processors (code-named Sapphire Rapids) Up to 20% higher compute performance than z1d instances Up to 50 Gbps of networking speed Up to 40 Gbps of bandwidth to the Amazon Elastic Block Store (EBS) We can also verify these capabilities by running some simple benchmarks on the different subsystems.

Performance 54

Performance Benchmarking Cache Storage 54

Speed Curve

MARCH 5, 2023

Site A Site B Site C Site D Observations 1. The poverty line emerges surprisingly quickly in some cases For example, Site C's performance poverty line starts at 400 milliseconds. For some sites (such as Site C), the difference was as little as 300 milliseconds. That's early! You need to look at your own real user data. (If

Performance 119

Performance C++ Metrics Ecommerce 119

n0derunner

JANUARY 12, 2021

pgbench paramaters for concurrency control pgbench offers two parameters for controlling the concurrency in the benchmark. j, --jobs=NUM number of threads (default: 1) -c for ‘clients’ The number of “postgres” processes to run. -c, Namely: -j for ‘jobs’ The number of pgbench threads to run. -j,

Benchmarking 52

Benchmarking C++ Database Processing 52

HammerDB

DECEMBER 14, 2022

Copyright (C) 2003-2022 Steve Shaw Type "help" for a list of commands Initialized new SQLite on-disk database /tmp/hammer.DB MariaDB) starting as process 4483. Copyright (C) 2003-2022 Steve Shaw. Benchmark set to TPC-C for MariaDB. Ready to create a 20 Warehouse MariaDB TPROC-C schema. hammerdbcli.

C++ 62

C++ Virtualization Database Benchmarking 62

Scalegrid

JULY 13, 2020

of PostgreSQL users are currently in the process of migrating to the RDBMS, according to the 2019 PostgreSQL Trends Report , an astounding percentage considering this is the 4th most popular database in the world. Objective C. In fact, PostgreSQL is so popular, 11.5% SolarisUnix. Supported Languages. JavaScript. Visual Basic.Net.

Open Source 244

Open Source Tuning C++ Database 244

Dynatrace

NOVEMBER 8, 2021

These solutions provide performance metrics for applications, with specific insights into the statistics, such as the number of transactions processed by the application or the response time to process such transactions. ” — Christopher C, Platform Manager at an enterprise. Application performance insights.

Artificial Intelligence 236

Artificial Intelligence Monitoring Infrastructure Cloud 236

Percona

DECEMBER 23, 2022

The use case is the TPC-C benchmark but executed not on a high-end server but on a lower-spec virtual machine that is I/O limited like for example, with AWS EBS volumes. The TPC-C dataset I used was with a scale of 200. TPC-C on MyRocks. MyRocks handles indexes in a similar fashion. Long term stability.

Storage 55

Storage Cache C++ Virtualization 55

HammerDB

DECEMBER 9, 2020

is the refactoring of the stored procedures for some of the TPROC-C workloads. The TPROC-C workload is derived from the TPC-C workload , the primary metric for TPC-C is called tpmC, the number of new order transactions processed per minute. the stored procedures have been updated to use bulk processing features.

C++ 52

C++ Benchmarking Metrics Database 52

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. A good example of how tuning is an iterative process.

Benchmarking 40

Benchmarking Database C++ Virtualization 40

Percona

MAY 1, 2023

PostgreSQL performance optimization is an ongoing process involving monitoring, benchmarking, and adjustments to maintain high-performing PostgreSQL databases. Throughput: The throughput of an application is directly influenced by the speed at which the database can process and serve queries.

Tuning 52

Tuning Efficiency Database Performance 52

HammerDB

NOVEMBER 30, 2022

Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. 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 HammerDB CLI v4.6. Type "help()" for a list of commands. HammerDB CLI v4.6.

Virtualization 44

Virtualization C++ Lambda Monitoring 44

HammerDB

JULY 6, 2023

In this example, we will use the CLI to run TPROC-C on a MariaDB database to illustrate the concepts. In the TPC-C specification, each warehouse has 10 connections and therefore with HammerDB derived workload this enables us to use 1.28 tpmC per warehouse. NOPM per virtual user as a guide to our fixed throughput.

Virtualization 57

Virtualization C++ Database Code 57

The Morning Paper

MAY 23, 2019

Looking across a set of eight Java benchmarks, we find that only two of them are array dominated, the rest having between 40% to 75% of the heap footprint allocated to objects, the vast majority of which are small. Consider a B-Tree node from the B-tree Java benchmark: Uncompressed, it’s memory layout looks like (a) below. Evaluation.

Cache 61

Cache Benchmarking Hardware Java 61

SQL Performance

DECEMBER 8, 2021

L0 AS ( SELECT 1 AS c. It will be used as a benchmark. It then processes the entries in a loop as long as the last fetch was successful. Of course, you can customize the inputs as you wish to test the performance of your solutions. Cursor-Based Solution. Peter provided the cursor-based solution.

C++ 133

C++ Code Benchmarking Performance 133

Brendan Gregg

SEPTEMBER 25, 2021

What about short-lived processes, like a service restarting in a loop? As (C) looked like a kernel rebuild, I started with (D) and (E). ## 5. I also rewrote this in C and called gettimeofday(2) directly: $ cat gettimeofdaybench.c. top(1) showed that only the Cassandra database was consuming CPU. These can be invisible to top(8).

Speed 126

Speed Java AWS Virtualization 126

Speed Curve

MARCH 5, 2023

Site A Site B Site C Site D Observations 1. The plateau emerges surprisingly quickly in some cases For example, Site C's performance plateau starts at 400 milliseconds. For some sites (such as Site C), the difference was as little as 300 milliseconds. That's early! You need to look at your own real user data. (If

Performance 52

Performance C++ Metrics Ecommerce 52

Adrian Cockcroft

JUNE 21, 2022

Another big jump, but now it was my job to run benchmarks in the lab, and write white papers that explained the new products to the world, as they were launched. I was mostly coding in C, tuning FORTRAN, and when I needed to do a lot of data analysis of benchmark results used the S-PLUS statistics language, that is the predecessor to R.

Tuning 52

Tuning Benchmarking Engineering C++ 52

HammerDB

JULY 8, 2019

Additional json, rest and huddle packges have been added with which to format and process input and output. This interface can be started using the hammerdbws command at which hammerdb will proceed to listen on a predefined port. see the documentation for setting the port). . $./hammerdbws hammerdbws HammerDB Web Service v3.2

Benchmarking 40

Benchmarking Virtualization C++ Database 40

The Morning Paper

NOVEMBER 26, 2019

The synthesis process is quite straightforward as the expressive merge specification already describes what the result of a relational merge should be. ” The authors also implemented four large application benchmarks (TPC-C, TPC-E, RUBiS, and Twissandra) as a collection of MRDTs.

C++ 98

C++ Storage Benchmarking Efficiency 98

Percona

AUGUST 31, 2018

In production environments, it is observed that a large value for shared_buffer gives really good performance, though you should always benchmark to find the right balance. The checkpoint process flushes the data into the data files. This whole process involves expensive disk read/write operations. wal_buffers. Related posts.

Tuning 54

Tuning Database Performance Benchmarking 54

HammerDB

MAY 10, 2021

dbset db ora dbset bm TPC-C diset connection system_user system diset connection system_password oracle diset connection instance RAZPDB1 diset tpcc tpcc_user tpcc diset tpcc tpcc_pass tpcc diset tpcc total_iterations 10000000 diset tpcc ora_driver timed diset tpcc rampup 2 diset tpcc duration 10 vuset logtotemp 1 vuset vu 2 steprun.

Virtualization 52

Virtualization C++ Database Monitoring 52

The Morning Paper

SEPTEMBER 3, 2019

Strict serializability reduces application code complexity and bugs, since it behaves like a system that is running on a single machine processing transactions sequentially. When data for single home transactions is processed within a region, SLOG works similarly to Calvin with data partitioned across servers.

Latency 70

Latency Processing Benchmarking Systems 70

The Morning Paper

AUGUST 29, 2019

use the TPC-H benchmark to assess Redshift, Redshift Spectrum, Athena, Presto, Hive, and Vertica to find out what works best and the trade-offs involved. My key takeaways as a TL;DR: Store your data in S3 Use portable data format that gives you future flexibility to process it with multiple different systems (e.g.

Architecture 76

Architecture Cloud Storage Serverless 76

HammerDB

APRIL 27, 2021

This will show the benchmark options dialog. Benchmark Options. and benchmark set with the bm argument. The schema build is the same process whether built from the GUI or the CLI. dbset db command. You may need a number of minutes for the build to complete. Build in progress. Build Complete. TEST RESULT.

Virtualization 73

Virtualization Benchmarking Database Operating System 73

Brendan Gregg

SEPTEMBER 25, 2021

What about short-lived processes, like a service restarting in a loop? As (C) looked like a kernel rebuild, I started with (D) and (E). I also rewrote this in C and called gettimeofday(2) directly: $ cat gettimeofdaybench.c Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS?

Speed 52

Speed Java AWS Virtualization 52