DZone

DECEMBER 28, 2020

Most organizations work with large amounts of data that need to be processed every second. Virtual Tables. If you're using MySQL or any other SQL-based database, using virtual tables is the best thing that you can do. If you're using MySQL or any other SQL-based database, using virtual tables is the best thing that you can do.

Performance 189

Performance Virtualization Database Processing 189

Randon ASCII

OCTOBER 15, 2018

Windows has long had a reputation for slow file operations and slow process creation. This weeks’ blog post covers a technique you can use to make process creation on Windows grow slower over time (with no limit), in a way that will be untraceable for most users! A long-standing correctness bug in the Windows file cache: Compiler bug?

Processing 57

Processing Cache Programming Virtualization 57

HammerDB

JUNE 27, 2022

The Transaction Processing Performance Council (TPC) was founded to bring standards to database benchmarking, and the history of the TPC can be found here. An additional specification called TPC-CH for hybrid transactional/analytical processing (HTAP) is under research and development for inclusion in a future release as TPROC-CH.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

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 decided to use a virtual machine with two CPU cores, four GB of memory, and storage limited to a maximum of 1000 IOPs of 16KB. InnoDB and MyRocks dataset sizes.

Storage 56

Storage Cache C++ Virtualization 56

The Morning Paper

MARCH 8, 2020

If all data was read from S3 every time, performance would suffer, so of course Snowflake has a caching layer – a distributed ephemeral storage service shared by all the nodes in a warehouse. The caching use case may be the most familiar, but in fact it’s not the primary purpose of the ephemeral storage service.

Storage 112

Storage Engineering Cache Serverless 112

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] Apr 2018 - [Cutress 19] Dr. DDR6: Here's What to Expect in RAM Modules,” [link] Nov 2020 - [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] Jul 2020 - [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 110

Performance Latency Cache Virtualization 110

Scalegrid

JULY 29, 2020

It uses only one process which makes it very lightweight. If we require N parallel connections, this forks N child processes. By default, there are 32 child processes that are forked. Pgpool-II defines one process per child process. We cannot control which child process a client connects to. Not supported.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Percona

SEPTEMBER 1, 2023

Completion of Trigger : Once the trigger’s code is executed for one row, it proceeds to the next affected row (if any) and repeats the process. Scope of Data : Row-level triggers work with individual row data, making them suitable for tasks that require row-level processing. Don’t let hidden database costs haunt you.

Cache 61

Cache Database Games Healthcare 61

Scalegrid

FEBRUARY 8, 2024

This process effectively duplicates essential parts of information to safeguard against potential loss. It utilizes methodologies like DStore, which takes advantage of underused hard drive space by using it for storing vast amounts of collected datasets while enabling efficient recovery processes.

Storage 130

Storage Systems Big Data Azure 130

HammerDB

FEBRUARY 26, 2024

This is particularly important when running automated workloads back-back to generate a performance profile for a progressively increasing number of virtual users. The history list length that can be queried is the number of undo log pages that contain changes.

C++ 62

C++ Cache Database Virtualization 62

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. In the context of MySQL performance evaluation, it simulates a typical online transaction processing (OLTP) workload on your MySQL database.

Performance 54

Performance Benchmarking Cache Storage 54

Dynatrace

NOVEMBER 5, 2019

Microsoft offers a wide variety of tools to monitor applications deployed within Microsoft Azure, and the Azure Monitor suite includes several integration points into the enterprise applications, including: VM agent – Collects logs and metrics from the guest OS of virtual machines. Available as an agent installer).

Azure 137

Azure Artificial Intelligence Metrics Innovation 137

IO River

NOVEMBER 2, 2023

Make sure to never starve a CDN vendor - always keep all vendors with a portion of the traffic to keep the cache warm.Many organizations use a DNS switching service, which routes traffic between the different CDNs. In case of an error, a Virtual Edge solution also enables reverting to the previous configuration easily and quickly.5.

Best Practices 52

Best Practices Strategy Traffic Virtualization 52

Randon ASCII

JULY 11, 2022

Downloads go through the cache, the cache is saved to disk, and saves to disk are slowed by (some) anti-virus software. I’d been testing on a virtual machine in a data center that I had access to, purely because this machine has an internet connection that runs at over 2 Gbps. It looks like this can happen. Case closed.

Cache 105

Cache Energy Google Processing 105

Percona

SEPTEMBER 28, 2023

Whenever you install your favorite MySQL server on a freshly created Ubuntu instance, you start by updating the configuration for MySQL, such as configuring buffer pool, changing the default datadir director, and disabling one of the most outstanding features – query cache. It’s a nice thing to do, but first things first.

Servers 114

Servers Best Practices Database Open Source 114

Dynatrace

DECEMBER 15, 2020

Resolved issue with deep monitoring of Go process because of incompatible ABI (added support for monitoring Go applications containing C code that uses TLS). Resolved IIS crash on RUM activity interactions (user caching is now disabled if UEM is enabled). ONE-42283). ONE-49694). ONE-45777). ONE-50756). APM-259068). All modules.

Operating System 108

Operating System Java Mobile Cache 108

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] , Apr 2018 [Cutress 19] Dr. DDR6: Here's What to Expect in RAM Modules,” [link] , Nov 2020 [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] , Jul 2020 [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 52

Performance Latency Cache Virtualization 52

IO River

NOVEMBER 2, 2023

Make sure to never starve a CDN vendor - always keep all vendors with a portion of the traffic to keep the cache warm.Many organizations use a DNS switching service, which routes traffic between the different CDNs. In case of an error, a Virtual Edge solution also enables reverting to the previous configuration easily and quickly.5.

Best Practices 40

Best Practices Strategy Traffic Virtualization 40

HammerDB

JULY 5, 2022

puts "Processing $total_iterations transactions without output suppressed." 0 PostgreSQL tpm Vuser 1:Timing test period of 2 in minutes Vuser 2:RUNNING Vuser 2:Processing 1 transactions with output suppressed. Running a single process pre-test. user CPU utilisation and all of the top postgres processes show as idle.

Benchmarking 98

Benchmarking Database C++ Virtualization 98

Percona

APRIL 17, 2023

Operating System (OS) settings Swappiness Swappiness is a Linux kernel setting that influences the behavior of the Virtual Memory manager when it needs to allocate a swap, ranging from 0-100. Make sure the drives are mounted with noatime and also if the drives are behind a RAID controller with appropriate battery-backed cache.

Best Practices 52

Best Practices Design Tuning Database 52

The Morning Paper

DECEMBER 10, 2019

This is a companion paper to the " persistent problem " piece that we looked at earlier this week, going a little deeper into the object pointer representation choices and the mapping of a virtual object space into physical address spaces. " Epheremal virtual addresses don’t cut it as the basis for persistent pointers.

Hardware 52

Hardware Virtualization Operating System Programming 52

IO River

NOVEMBER 2, 2023

Given its unchanging nature, static content is ideal for caching. With the option to use multiple CDNs, you can select the areas you want to focus on, all while saving a pretty penny in the process. By the time the player needs it, the content is already cached and ready to go. But what if we could streamline this?With

Architecture 52

Architecture Performance Internet Internet 52

All Things Distributed

DECEMBER 18, 2012

May 28 - Virtual Time and Global States of Distributed Systems , Friedemann Mattern, Parallel and Distributed Algorithms, North-Holland (1989) , p. Jul 4 - Leases: An efficient fault-tolerant mechanism for distributed file cache consistency , Gray, Cary, and David Cheriton, Vol. Bar-Yam, Journal of Systems Science and Complexity.

Operating System 144

Operating System Cache AWS Scalability 144

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. In fact, choosing the right metric is a process without obvious winners.

Performance 145

Performance Cache Media Metrics 145

SQL Server According to Bob

DECEMBER 18, 2018

Device level flushing may have an impact on your I/O caching, read ahead or other behaviors of the storage system. FILE_FLAG_NO_BUFFERING is the Win32, CreateFile API flags and attributes setting to bypass file system cache. FILE_FLAG_NO_BUFFERING is the Win32, CreateFile API flags and attributes setting to bypass file system cache.

Servers 90

Servers Media Cache Storage 90

Enprowess

MAY 24, 2022

The primary purpose of React is to simplify the process of web development that is fast, scalable, and simple. More incredible Speed with Virtual DOM. Reactjs can help your business in web and mobile application development by bringing fast speed using the virtual DOM. Virtual DOM is an additional feature offered by React.

Mobile 52

Mobile Open Source Virtualization Speed 52

Smashing Magazine

JULY 16, 2020

Its performance will depend on how you use React when building it, and on your understanding of how React operates and the process through which components live through the various phases of their lifecycle. During the initial rendering process, React builds a DOM tree of components. You might be asking, “Where do we start?”.

Performance 121

Performance Code Virtualization Processing 121

Smashing Magazine

SEPTEMBER 20, 2021

They all generally are instrumented as JavaScript processes that are loaded onto your site’s web pages through a tag or snippet of loader code. Search Engine And Web Archive Cached Results. Another common category of imposter domains are domains used by search engines for delivering cached results or archived versions of page views.

Website 90

Website Analytics Cache Google 90

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. Each node has its own cache buffer.)

Availability 109

Availability Database Open Source Hardware 109

Enprowess

SEPTEMBER 7, 2021

React is an open-source front-end library based on JavaScript, created and maintained by Facebook, and is well known for its virtual DOM feature. The performance of React improves because of the Virtual DOM algorithm. Performance: React uses Virtual DOM (document object model), which improves the performance of applications.

Open Source 52

Open Source Virtualization Programming Servers 52

Brendan Gregg

AUGUST 18, 2019

bpftrace uses BPF (Berkeley Packet Filter), an in-kernel execution engine that processes a virtual instruction set. pid process ID. comm Process or command name. Syscall counts by process bpftrace -e 'tracepoint:raw_syscalls:sys_enter { @[comm] = count() }'. BCC is great for canned complex tools and agents.

Latency 68

Latency C++ Cache Programming 68

IO River

NOVEMBER 2, 2023

A disruption of just a few seconds can break the immersion, making you more aware of the streaming process than the story itself.This is why, while milliseconds might be inconsequential, seconds is the boundary one should not cross, or it goes from smooth streaming transitions into a disjointed experience.Â

Architecture 52

Architecture Performance Internet Internet 52

The Morning Paper

APRIL 14, 2019

Microarchitectural state of interest includes data and instruction caches, TLBs, branch predictors, instruction- and data-prefetcher state machines, and DRAM row buffers. cache) can be partitioned across domains; for those that are instead time-multiplexed, we have to flush them during domain switches.

Hardware 44

Hardware Cache Latency Speed 44

Brendan Gregg

JANUARY 17, 2018

OSes usually show you virtual memory and resident memory, shown as the "VIRT" and "RES" columns in top. Short durations can be useful for understanding how well a WSS will fit into the CPU caches (L1/L2/L3, TLB L1/L2, etc). That's the working set size. It is used for capacity planning and scalability analysis. Consider these overheads.

Cache 71

Cache Latency C++ Programming 71

Percona

MAY 15, 2023

In both cases, when using virtually-synchronous replication, the process will require certification from each node and local (by node) write; as such, the number of writes is NOT distributed across multiple nodes but duplicated. Because the solutions still rely on writing in one single node that works as Primary.

Traffic 124

Traffic Scalability Database Servers 124

The Morning Paper

DECEMBER 8, 2019

The beauty of persistent memory is that we can use memory layouts for persistent data (with some considerations for volatile caches etc. Traditional pointers address a memory location (often virtual of course). in front of that memory , as we saw last week). At least, the nature of pointers that we want to make persistent.

Hardware 56

Hardware Programming Media Storage 56

KeyCDN

JANUARY 23, 2020

These acronyms, which stand for real user monitoring and application performance monitoring, are software monitoring processes essential to measuring and evaluating applications in many different areas. This process should not be confused with synthetic monitoring which gathers data through synthetic transactions such as pinging a service.

Strategy 72

Strategy Metrics Monitoring Servers 72