John McCalpin

APRIL 2, 2020

All of the SPECfp_rate2000 results were downloaded from www.spec.org, the results were sorted by processor type, and “peak floating-point operations per cycle” was manually added for each processor type. Building separate models for each of the benchmarks was required to get the correct asymptotic properties.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Percona

JANUARY 24, 2023

This will be clearly visible in PostgreSQL performance benchmarks as a “ Sawtooth wave ” pattern observed by Vadim in his tests: As we can see, the throughput suddenly drops after every checkpoint due to heavy WAL writing and gradually picks up until the next checkpoint. Download Percona Distribution for PostgreSQL Today!

Database 114

Database Benchmarking Open Source Latency 114

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 Download Percona Monitoring and Management Today MySQL (B) 2517529 2610323 389048 5516900 194140 11523.48 PostgreSQL (A) 2194763 2275999 344528 4815290 169235 14302.94

Tuning 133

Tuning Cache Servers Benchmarking 133

The Morning Paper

NOVEMBER 8, 2020

Before we dive into this paper, if you click on the link above and then download and open up the paper pdf you might notice the familiar red/orange splash of USENIX, and appreciate the fully open access. For Facebook’s Delos, reconfiguration latencies of 10s of ms are ok. Virtual consensus in Delos , Balakrishnan et al.

Virtualization 126

Virtualization Latency Storage Systems 126

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. Offscreen Canvas.

Media 145

Media Games Education Engineering 145

Percona

JULY 1, 2023

Download our eBook, “ Enterprise Guide to Cloud Databases ” to help you make more informed decisions and avoid costly mistakes as you develop and execute your cloud strategy. Download Now What is Amazon Aurora? Doing extensive benchmarks will be the subject of a future blog post. Learn more here!

AWS 52

AWS Database Serverless Storage 52

Alex Russell

JANUARY 30, 2024

It's cheeky, but a weighted average of the P75 of download speeds (3/4ths of all connections are faster) should get us in the ballpark. If you or your company are able to generate a credible worldwide latency estimate in the higher percentiles for next year's update, please get in touch.

Performance 90

Performance Network Mobile Speed 90

Alex Russell

MARCH 6, 2021

Using a global ASP as a benchmark can further mislead thanks to the distorting effect of ultra-high-end prices rising while shipment volumes stagnate. Sadly, data on latency is harder to get, even from Google's perch, so progress there is somewhat more difficult to judge. Today, either method returns a similar answer. Is that a lot?

Performance 124

Performance Network Cache Metrics 124

Alex Russell

OCTOBER 22, 2017

Budgets are scaled to a benchmark network & device. Script execution delays interactivity in a few ways: If the script executes for more than 50ms, time-to-interactive is delayed by the entire amount of time it takes to download, compile, and execute the JS. Deciding what benchmark to use for a performance budget is crucial.

Performance 68

Performance Benchmarking Network Mobile 68

Percona

NOVEMBER 3, 2023

Leveraging pgbench , which is a benchmarking utility that comes bundled with PostgreSQL, I will put the cluster through its paces by executing a series of DML operations. And now, execute the benchmark: -- execute the following on the coordinator node pgbench -c 20 -j 3 -T 60 -P 3 pgbench The results are not pretty.

Database 102

Database Benchmarking Latency C++ 102

HammerDB

OCTOBER 12, 2018

For anyone benchmarking MySQL with HammerDB it is important to understand the differences from sysbench workloads as HammerDB is targeted at a testing a different usage model from sysbench. maximum transition latency: Cannot determine or is not supported. . HammerDB difference from Sysbench. hardware limits: 1000 MHz - 3.80

Best Practices 40

Best Practices Scalability Performance C++ 40

SQL Server According to Bob

JANUARY 11, 2020

Then follow the instructions to either download the BOL or browse online. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. Dirty Page Latency ​​ – A page is considered dirty when data modifications have taken place. See the following article.

Servers 40

Servers Cache Media Hardware 40

SQL Server According to Bob

JANUARY 11, 2020

The caching of data pages and grouping of log records helps remove much, if not all, of the command latency associated with a write operation. Action Description Manual Checkpoint – Target Specified I/O latency target set to ​​ the default ​​ of ​​ 20ms.

Servers 40

Servers Cache Database Media 40

Smashing Magazine

JANUARY 11, 2021

Download The Checklist (PDF, Apple Pages, MS Word). You can also just download the checklist PDF (166 KB) or download editable Apple Pages file (275 KB) or the.docx file (151 KB). You can download the spreadsheet as Google Sheets, Excel, OpenOffice document or CSV. Quick Wins. Happy optimizing, everyone!).

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Download The Checklist (PDF, Apple Pages, MS Word). You can also just download the checklist PDF (166 KB) or download editable Apple Pages file (275 KB) or the.docx file (151 KB). Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Assets Optimizations. Quick Wins.

Performance 145

Performance Cache Network Metrics 145