Scalegrid

JANUARY 25, 2024

Key metrics like throughput, request latency, and memory utilization are essential for assessing Redis health, with tools like the MONITOR command and Redis-benchmark for latency and throughput analysis and MEMORY USAGE/STATS commands for evaluating memory. Cache Hit Ratio The cache hit ratio represents the efficiency of cache usage.

Metrics 130

Metrics Monitoring Latency Cache 130

John McCalpin

APRIL 25, 2023

For most high-end processors these values have remained in the range of 75% to 85% of the peak DRAM bandwidth of the system over the past 15-20 years — an amazing accomplishment given the increase in core count (with its associated cache coherence issues), number of DRAM channels, and ever-increasing pipelining of the DRAMs themselves.

Benchmarking 97

Benchmarking Cache Latency Tuning 97

Percona

MARCH 27, 2023

Disclaimer : This blog post is meant to show a less-known problem but is not meant to be a serious benchmark. having to open each table.frm (and in which my test runs, I have purposely read a very high number of tables compared to “Table-open-cache” variable). Results for Percona Server for MySQL 8.0 While you are on 5.7,

Cache 124

Cache Hardware Servers Benchmarking 124

Percona

JUNE 22, 2023

Database uptime and availability Monitoring database uptime and availability is crucial as it directly impacts the availability of critical data and the performance of applications or websites that rely on the MySQL database. This KPI is also directly related to Query Performance and helps improve it.

Performance 136

Performance Monitoring Traffic Database 136

Adrian Cockcroft

SEPTEMBER 23, 2024

Most publications have simply reported the benchmark improvement claims, but if you stop to think about them, the numbers dont make sense based on a simplistic view of the technology changes. So first thing to understand is that the benchmark skips a generation and compares product that differs over about a two year interval.

Benchmarking 52

Benchmarking Energy Architecture Latency 52

Percona

MARCH 23, 2023

By caching hot datasets, indexes, and ongoing changes, InnoDB can provide faster response times and utilize disk IO in a much more optimal way. Benchmark before you decide. Typically a good value is 70%-80% of available memory. CPU From a CPU standpoint, faster processors with many cores provide better throughput.

Performance 144

Performance Hardware Tuning Storage 144

ACM Sigarch

OCTOBER 12, 2020

Par t of the appeal of Python is that there is a vast array of libraries available for it; when these are written in C, they can go a long way to alleviating Python’s performance problems. I suggest it’s long past time to move beyond C and SPEC benchmarks and our exclusive focus on “metal” languages.

C++ 108

C++ Benchmarking Hardware Architecture 108

Brendan Gregg

MARCH 16, 2024

This technique saves two instructions in the prologue and epilogue and makes one additional general-purpose register (%rbp) available." Only in extreme circumstances does the cost (in processor time and I-cache footprint) translate to a tangible benefit - circumstances which usually resort to hand-coded assembly anyway.

Java 137

Java Cache Google Hardware 137

Percona

MARCH 17, 2023

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. VictoriaMetrics maintains an in-memory cache for mapping active time series into internal series IDs.

Monitoring 117

Monitoring Scalability Database Cache 117

Percona

JULY 25, 2023

After the “data dictionary” (DD) engine and DD cache are initialized on a server, the Storage Engines can ask for a table definition. Initializing a DD engine and the cache adds complexity and other server dependencies. Essentially LRU cache is disabled by loading the tables as non-evictable. CREATE TABLE test.t1(a

Cache 98

Cache Servers Benchmarking Design 98

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., It’s a pretty impressive effort to pull together and make available in open source (not yet available as I write this) such a suite, and I’m sure explains much of the long list of 24 authors on this paper.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Alex Russell

APRIL 29, 2021

This post mines publicly available data on the pace of compatibility fixes and feature additions to assess the claim. 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. Higher is better.

Media 145

Media Games Education Engineering 145

ScaleOut Software

MAY 15, 2014

Given all this, we thought it would be a good opportunity to see how we are doing relative to the competition, and in particular, relative to Microsoft’s AppFabric caching for Windows on-premise servers. One or more specified cache servers are unavailable, which could be caused by busy network or servers. …). Please retry later.

Cache 40

Cache Servers Network Design 40

Dotcom-Montior

AUGUST 5, 2020

There are tools available such as Dotcom-Monitor’s free speed test that you can utilize to gauge performance. If you are running on a CMS platform like WordPress, there are a number of minification plugins available. Browser Caching: Although it may seem commonplace, caching is sometimes overlooked.

Website 92

Website Speed Cache Traffic 92

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

Percona

AUGUST 31, 2018

This parameter sets how much dedicated memory will be used by PostgreSQL for cache. If your working set of data can easily fit into your RAM, then you might want to increase the shared_buffer value to contain your entire database, so that the whole working set of data can reside in cache. wal_buffers. effective_cache_size.

Tuning 79

Tuning Database Performance Benchmarking 79

SQL Performance

NOVEMBER 18, 2019

Memory optimized – High memory-to-CPU ratio, relational database servers, medium to large caches, and in-memory analytics. and the overall size will determine the amount of temporary storage available. Once you select your filter options, if any, you will see a list of available servers. Benchmark Test. VM Image Options.

Azure 76

Azure Benchmarking Storage Virtualization 76

Speed Curve

FEBRUARY 5, 2024

Looking at the industry benchmarks for US retailers , four well-known sites have backend times that are approaching – or well beyond – that threshold. Pagespeed Benchmarks - US Retail - LCP When you examine a waterfall, it's pretty obvious that TTFB is the long pole in the tent, pushing out render times for the page.

Servers 64

Servers Cache Retail Benchmarking 64

CSS - Tricks

APRIL 1, 2021

Google’s industry benchmarks from 2018 also provide a striking breakdown of how each second of loading affects bounce rates. The code for the site is available on GitHub for reference. Compressing, minifying and caching assets. The final thing we can check is caching. billion if the site slowed down by just one second.

Cache 94

Cache Social Media Media Website 94

John McCalpin

SEPTEMBER 11, 2014

The High Performance LINPACK (HPL) benchmark is well known for delivering a high fraction of peak floating-point performance. The (historically) excellent scaling of performance as the number of processors is increased and as the frequency is increased suggests that memory bandwidth has not been a performance limiter.

Benchmarking 40

Benchmarking Cache Performance Systems 40

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. We focused on OLAP-oriented parallel data warehouse products available for AWS and restricted our attention to commercially available systems. System initialisation time.

Architecture 76

Architecture Cloud Storage Serverless 76

Percona

MARCH 20, 2023

When deciding what to pick, there are many things to consider, like where the proxy needs to be, if it “just” needs to redirect the connections, or if more features need to be in, like caching and filtering, or if it needs to be integrated with some MySQL embedded automation. Given that, there never was a single straight answer.

Games 141

Games Latency Traffic Cache 141

John McCalpin

APRIL 2, 2020

To show that I can criticize my own work as well, here I show that sustained memory bandwidth (using an approximation to the STREAM Benchmark ) is also inadequate as a single figure of metric. (It Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Percona

SEPTEMBER 1, 2023

Testing and Benchmarking : Thoroughly test triggers in a staging environment to evaluate their impact on performance. Benchmark different trigger implementations to identify the most efficient option. These table cache instances could be accessed concurrently, allowing DML to use cached table descriptors without locking each other.

Cache 75

Cache Database Games Healthcare 75

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. Modern network performance and availability. 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.

Performance 127

Performance Network Mobile Metrics 127

Brendan Gregg

FEBRUARY 9, 2018

This overhead can be reduced by A) pcid, fully available in Linux 4.14, and B) Huge pages. - **Cache access pattern**: the overheads are exacerbated by certain access patterns that switch from caching well to caching a little less well. This can turn a 1% overhead (syscall cycles alone) into a 7% overhead.

Performance 72

Performance Benchmarking Cache Tuning 72

CSS - Tricks

JUNE 5, 2020

The service categorized all the optimizations in three groups consisting of several “Content,” “Delivery,” and “Cache” optimizations. In my benchmarks, Brotli:11 takes several hundred milliseconds to compress a single minified jQuery file. We only cache hot files in memory at edge servers. and Ruby are not yet available.

Cache 83

Cache Website Servers Open Source 83

SQL Performance

DECEMBER 17, 2019

Microsoft's Mine Tokus has a good article where she ran a series of scaled down TPC-E benchmarks against an E64s_v3 VM that was using the older Broadwell processor. Most of the regular Esv3-series sizes are also available as constrained VMs, which gives you a lot of flexibility for sizing. GHz, 128MB of L3 cache, 128 PCIe 4.0

Azure 72

Azure Virtualization Servers Storage 72

Speed Curve

DECEMBER 13, 2023

We track LEGO.com, along with a handful of other leading ecommerce sites, in our public-facing Retail Benchmarks dashboard , which I encourage you to check out. Are you compressing and caching the right things? Optimizing the critical rendering path could make this page a star on the Retail Benchmarks leaderboard.

Performance 78

Performance Retail Benchmarking Ecommerce 78

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. I wanted most of the memory to be available for the file cache, where the compressed SST files will be cached.

Storage 56

Storage Cache C++ Virtualization 56

Alex Russell

OCTOBER 22, 2017

Budgets are scaled to a benchmark network & device. If our example document wasn’t reliant on JavaScript to construct the <my-app> custom element, the contents of the document would likely be interactive as soon as enough CSS and content was available to render meaningfully. Global Ground-Truth. 400Kbps transfer.

Performance 74

Performance Network Benchmarking Mobile 74

Smashing Magazine

JUNE 1, 2022

The most popular, by far, is the Google Lighthouse report (available in Chrome Developer Tools) and Google’s Page Speed Insights. You can adjust what browser is used, the kind of network connection to employ, the locations to test from, whether or not the browser’s cache is empty or full, how frequently to take the measurements, and more.

Website 138

Website Design Network Testing 138

John McCalpin

APRIL 25, 2023

For most high-end processors these values have remained in the range of 75% to 85% of the peak DRAM bandwidth of the system over the past 15-20 years — an amazing accomplishment given the increase in core count (with its associated cache coherence issues), number of DRAM channels, and ever-increasing pipelining of the DRAMs themselves.

Benchmarking 40

Benchmarking Cache Latency Tuning 40

Percona

MAY 1, 2023

Connection pooling: Minimizing connection overhead and improving response times for frequently accessed data by implementing mechanisms for connection pooling and caching strategies. PostgreSQL performance optimization is an ongoing process involving monitoring, benchmarking, and adjustments to maintain high-performing PostgreSQL databases.

Tuning 52

Tuning Database Efficiency Performance 52

Smashing Magazine

JUNE 26, 2019

Let the web developer handle all of the necessary speed optimizations like caching and file minification while you take on the following design tips and strategies: 1. You can see in his example that he suggests a number of optimizations, like limiting which styles and character sets are available for use on the website. Minification.

Website 111

Website Speed Mobile Design 111

John McCalpin

APRIL 2, 2020

To show that I can criticize my own work as well, here I show that sustained memory bandwidth (using an approximation to the STREAM Benchmark ) is also inadequate as a single figure of metric. (It Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time.

Benchmarking 40

Benchmarking Performance Latency Architecture 40

Adrian Cockcroft

JANUARY 20, 2023

Here’s some predictions I’m making: Jack Dongarra’s efforts to highlight the low efficiency of the HPCG benchmark as an issue will influence the next generation of supercomputer architectures to optimize for sparse matrix computations. In early January a related paper was published by Satoshi Matsuoka et. petaflops, which is 0.8%

Architecture 52

Architecture Latency Benchmarking AWS 52