ACM Sigarch

OCTOBER 12, 2020

These, let’s call them metal languages , include FORTRAN (introduced in 1957), C (1972), and C++ (1985). Programmers continue to write applications in them, and they continue to evolve: the just approved C++20 standard is the latest example. Despite their age, these languages are far from dead! As Leiserson et al.

C++ 108

C++ Benchmarking Hardware Architecture 108

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., code is not given access to excessive capabilities. And this all has to work for whole-system executions, not just the C-language portion of user processes. ASPLOS’19. CHERI implementation.

C++ 61

C++ Hardware Virtualization Benchmarking 61

Percona

JULY 19, 2023

Well, “easy” if you know just a tiny bit of C++. Our function will implement a ULID generator using a C++ library from ChrisBove/ulid. Creating the build environment The first step is downloading the source code to MySQL / Percona Server for MySQL 8.0.32 , then extracting the tarball. $ cd ~/percona-server-8.0.32-24/plugin/ulid/

C++ 78

C++ Servers Benchmarking Best Practices 78

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. Copy Code Copied Use a different Browser ~/HammerDB-4.7$ In HammerDB v4.6

C++ 83

C++ Virtualization Benchmarking Database 83

Particular Software

SEPTEMBER 27, 2022

Before the introduction of the Heap Allocation Viewer for Jetbrains Rider or Clr Heap Allocation Analyzer for Visual Studio you’d have to either decompile the code or attach a memory profiler and watch out for various *__DisplayClass* , Action* or Func* allocations. <Main>b__1)); In the generated code, we can spot two allocations.

Lambda 98

Lambda C++ Benchmarking Code 98

Daniel Lemire

FEBRUARY 19, 2019

I expect that the compiler will turn this code into a sequence of instructions over 32-bit registers: uint32_t compilermod32 ( uint32_t a ) {. As a benchmark, I am going to compute a linear congruential generator (basically a recursive linear function with a remainder thrown in), using these three approaches, plus the naive one.

Benchmarking 138

Benchmarking C++ Games Code 138

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

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

HammerDB

NOVEMBER 22, 2021

This enables the user to compare and contrast performance across different benchmark scenarios. usr/bin/install -c -m 644./pg_stat_statements--1.4.sql./pg_stat_statements--1.8--1.9.sql./pg_stat_statements--1.7--1.8.sql./pg_stat_statements--1.6--1.7.sql./pg_stat_statements--1.5--1.6.sql./pg_stat_statements--1.4--1.5.sql. src/port -L././src/common

Metrics 62

Metrics Benchmarking C++ Database 62

HammerDB

MAY 26, 2022

If you are not already familiar with the programming languages that HammerDB uses, then this earlier post serves as an ideal introduction to what makes up the highest performing GIL free database benchmarking application. set MARIADB_CONFIG=C:Program FilesMariaDBMariaDB Connector C 64-bit set MYSQL_CONFIG=C:Program FilesMySQLMySQL Server 8.0

C++ 113

C++ Database Open Source Servers 113

SQL Performance

DECEMBER 8, 2021

The challenge involves querying a table called Auctions, which you create using the following code: DROP TABLE IF EXISTS dbo. ( ID INT NOT NULL IDENTITY ( 1 , 1 ) CONSTRAINT pk_Auctions PRIMARY KEY CLUSTERED , Code CHAR ( 1 ) NOT NULL. Demand entries are marked with the code D and supply entries with S.

C++ 133

C++ Code Benchmarking Performance 133

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 Under the HammerDB home directory is a scripts directory containing example scripts to test all supported databases except for Db2 in both tcl and python format for both TPROC-C and TPROC-H workloads.

C++ 62

C++ Virtualization Database Benchmarking 62

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

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. Copy Code Copied Use a different Browser /home/hammerdb/HammerDB-4.7#./scripts/tcl/postgres/tprocc/pg_tprocc.sh

Benchmarking 51

Benchmarking Testing Database C++ 51

Scalegrid

JULY 13, 2020

Oracle requires more complex ongoing administration, as all database configurations must evolve in conjunction with the data schemas and custom code. Objective C. SolarisUnix. Supported Languages. JavaScript. Visual Basic.Net. JavaScript (Node.js).

Open Source 244

Open Source Tuning C++ Database 244

Dynatrace

NOVEMBER 8, 2021

Your APM tool should help you establish performance benchmarks, so you can understand what good performance looks like. The right APM tool will also help you keep a close eye on application transactions along with their business context and code-level detail. ” — Christopher C, Platform Manager at an enterprise.

Artificial Intelligence 236

Artificial Intelligence Monitoring Infrastructure Cloud 236

Brendan Gregg

SEPTEMBER 25, 2021

The broken Java stacks turned out to be beneficial: They helped group together the os::javaTimeMillis() calls which otherwise might have have been scattered on top of different Java code paths, appearing as thin stacks everywhere. Without NMI, some kernel code paths (interrupts disabled) can't be profiled. But I'm not completely sure.

Speed 126

Speed Java AWS Virtualization 126

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. If you wonder what is the difference between MyRocks and RocksDB, consider MyRocks as the piece of code, or the glue, that allows MySQL to store data in RocksDB.

Storage 55

Storage Cache C++ Virtualization 55

HammerDB

DECEMBER 1, 2022

Copyright (C) 2003-2022 Steve Shaw Type "help" for a list of commands Initialized new SQLite on-disk database C:/Users/Hdb/AppData/Local/Temp/hammer.DB Copyright (C) 2003-2022 Steve Shaw Type "help" for a list of commands Initialized new SQLite on-disk database C:/Users/Hdb/AppData/Local/Temp/hammer.DB HammerDB CLI v4.6

Virtualization 57

Virtualization C++ Storage Database 57

HammerDB

JULY 6, 2023

In this example, we will use the CLI to run TPROC-C on a MariaDB database to illustrate the concepts. Copy Code Copied Use a different Browser diset tpcc maria_keyandthink true When we run the test, we can see that our virtual user ran transactions at 1 NOPM (new order per minute) with most of the time now spent in keying and thinking time.

Virtualization 57

Virtualization C++ Database Code 57

HammerDB

NOVEMBER 30, 2022

Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. HammerDB will show the prompt “hammerdb>>>” to indicate that it is running a Python interpreter. Use a different Browser. $./hammerdbcli hammerdbcli py HammerDB CLI v4.6. Type "help()" for a list of commands. Use a different Browser.

Virtualization 44

Virtualization C++ Lambda Monitoring 44

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

Brendan Gregg

SEPTEMBER 25, 2021

The broken Java stacks turned out to be beneficial: They helped group together the os::javaTimeMillis() calls which otherwise might have have been scattered on top of different Java code paths, appearing as thin stacks everywhere. Without NMI, some kernel code paths (interrupts disabled) can't be profiled.

Speed 52

Speed Java AWS Virtualization 52

HammerDB

NOVEMBER 30, 2018

HammerDB is open source and all of the source code is available at the sourceforge Git development site here [link] or the github mirror here [link]. In fact all of this source code is also included in readable form with each and every release. Otherwise the code is the same on all platforms. Programming Languages.

Architecture 40

Architecture Virtualization Open Source C++ 40

Brendan Gregg

SEPTEMBER 25, 2021

The broken Java stacks turned out to be beneficial: They helped group together the os::javaTimeMillis() calls which otherwise might have have been scattered on top of different Java code paths, appearing as thin stacks everywhere. Without NMI, some kernel code paths (interrupts disabled) can't be profiled. But I'm not completely sure.

Speed 40

Speed Java AWS Virtualization 40

Rigor

JANUARY 13, 2020

Steve Souders, plus Dion Almaer, Doug Crockford, Ben Galbraith, Tony Gentilcore, Dylan Schiemann, Stoyan Stefanov, Nicole Sullivan, Nicholas C. The in-depth explorations are meticulously illustrated and code examples culminate as bulletproof code snippets, applicable to your work right away. High Performance Mobile Web.

Performance 75

Performance Social Media Website Website Performance 75

The Morning Paper

SEPTEMBER 15, 2019

In the true calculation the value of D depends on all of A, B, and C. Inspecting the public code of all smart contracts to make sure developers aren’t cheating doesn’t seem very satisfactory. Alternatively, DASL support can be automatically inferred from the contract’s source code. Or on nothing at all.

Blockchain 55

Blockchain Efficiency Systems Storage 55

Brendan Gregg

FEBRUARY 9, 2018

I then analyzed performance during the benchmark ([active benchmarking]), and used other benchmarks to confirm findings. I collected CPU profile as a [CPU flame graph] for both systems, but, for a change, they was boring: extra cycles were just in the syscall code, as one would expect reading the [KPTI changes].

Performance 75

Performance Benchmarking Cache Tuning 75

Smashing Magazine

JUNE 1, 2022

In many cases, they can be super convenient to add or remove without having to push code changes to the site. For example, users can install browser plugins to suggest coupon codes when they are shopping, to scan web pages for malware, to play games or message friends, or do any number of other things. More after jump!

Website 131

Website Design Network Best Practices 131

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. SLOG is another research system motivated by the needs of the application developer (aka, user!).

Latency 70

Latency Processing Benchmarking Systems 70

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. SELECT DISTINCT c from sbtest where id between ? order by c. SELECT c from sbtest where id=? HammerDB difference from Sysbench. Configure MySQL.

Best Practices 40

Best Practices Scalability Performance C++ 40

Randon ASCII

APRIL 17, 2018

When you own all of the code then this may involve some back of the envelope estimates, competitive benchmarking, or intuition tuned by experience. VsChromium is a Visual Studio extension that keeps all of the source code in a monitored directory loaded into RAM. We know that this code is running too slow.

Monitoring 43

Monitoring C++ Code Processing 43

High Scalability

SEPTEMBER 28, 2018

MrTonyD : I was writing production code over 30 years ago (C, OS, database). There is a reason why I'm not a practicing programmer anymore - even though I love to code. JavaScript benchmark. billion increase in pure-play foundry market; Quotable Quotes: WhatsApp cofounder : I am a sellout. I acknowledge that. There more.

Internet 35

Internet Internet Scalability Blockchain 35

Brendan Gregg

FEBRUARY 8, 2018

I then analyzed performance during the benchmark ([active benchmarking]), and used other benchmarks to confirm findings. I collected CPU profile as a [CPU flame graph] for both systems, but, for a change, they was boring: extra cycles were just in the syscall code, as one would expect reading the [KPTI changes].

Performance 40

Performance Benchmarking Cache Tuning 40

Smashing Magazine

JUNE 2, 2021

Today, the website is much faster and ranks highly in various showcases and benchmarks. We audited the JavaScript that we had, and the majority is from libraries for different tasks, with very little custom code. Row C : The product carousel of similar products. Large preview ). Explicit Dimensions Against CLS.

Performance 115

Performance Cache Website Mobile 115

Particular Software

NOVEMBER 6, 2017

It gets even worse when you don't even know exactly what the code is supposed to do until runtime. What's worse, a few extra pieces (a generic BehaviorInvoker and a non-generic BehaviorInstance ) are required to deal with the realities of generic types in C#, further deepening the stack trace. Do you want speed or reliability?

Lambda 40

Lambda Speed Efficiency Infrastructure 40