Percona

AUGUST 31, 2018

Out of the box, the default PostgreSQL configuration is not tuned for any particular workload. It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. This parameter sets how much dedicated memory will be used by PostgreSQL for cache. wal_buffers.

Tuning 79

Tuning Database Performance Benchmarking 79

The Netflix TechBlog

JULY 1, 2019

Our UI runs on top of a custom rendering engine which uses what we call a “surface cache” to optimize our use of graphics memory. Surface Cache Surface cache is a reserved pool in main memory (or separate graphics memory on a minority of systems) that the Netflix app uses for storing textures (decoded images and cached resources).

Cache 167

Cache Design Testing Development 167

The Netflix TechBlog

AUGUST 10, 2020

Further tuning of pre-defined encoding parameters. These figures were estimated on 200 full-length titles from our catalog and have been validated through extensive A/B testing. In addition, footprint savings will allow more content to be stored in edge caches, thus contributing to an improved experience for our members.

Innovation 242

Innovation Traffic Network Efficiency 242

Percona

APRIL 24, 2023

Indexes are generally considered to be the panacea when it comes to SQL performance tuning, and PostgreSQL supports different types of indexes catering to different use cases. I keep seeing many articles and talks on “tuning” discussing how creating new indexes speeds up SQL but rarely ones discussing removing them.

Tuning 139

Tuning Cache Storage Database 139

Dynatrace

JUNE 18, 2019

Instrumenting multi-dex apps sometimes required advanced manual fine-tuning. Moreover, features like Instant Run and the Gradle Build Cache weren’t supported. Out-of-the-box support for Instant Run and the Gradle Build Cache make the auto-instrumentation process barely noticeable. No multi-dex issues. Supportability.

Cache 35

Cache Java Monitoring Tuning 35

Dynatrace

NOVEMBER 13, 2020

Be sure to fine-tune the anomaly detection settings for your mobile app so that you can focus on those anomalies that are most relevant to the experience of your end users. Test Flutter monitoring with our demo app. To get you up to speed quickly and to test Dynatrace easily, we provide a small Flutter demo app.

Code 244

Code Mobile Monitoring Infrastructure 244

The Netflix TechBlog

JULY 21, 2022

Some features (as an example) include Device Type ID, SDK Version, Buffer Sizes, Cache Capacities, UI resolution, Chipset Manufacturer and Brand. Restricting Testing and Analysis to one day and device at a time. all OOM kills with the tradeoff of lowering the performance/clearing the cache an extra 1.1%

Big Data 188

Big Data Cache Engineering Data Engineering 188

Percona

MARCH 27, 2023

A lot of useful information can be retrieved from this schema, for example, table metadata and foreign key relations, but trying to query I_S can induce performance degradation if your server is under heavy load, as shown in the following example test. The same tests have been executed in Percona Server for MySQL 5.7

Cache 124

Cache Hardware Servers Benchmarking 124

Smashing Magazine

NOVEMBER 8, 2021

But then, quickly advances to contextual pricing, juggling complexity of large and frequently updated product catalog, managing continuously running multivariate tests and promotion campaigns, and serving customer-tailored dynamic recommendations. Stay tuned for more in 2022! The journey, often, starts “simple” with localization.

Cache 139

Cache Best Practices Strategy Servers 139

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. The optimal value can be decided after testing multiple settings, starting from eight is a good choice. If you see concurrency issues, you can tune this variable. I hope this helps!

Performance 144

Performance Hardware Tuning Storage 144

Scalegrid

JANUARY 25, 2024

Effective management of memory stores with policies like LRU/LFU proactive monitoring of the replication process and advanced metrics such as cache hit ratio and persistence indicators are crucial for ensuring data integrity and optimizing Redis’s performance. Cache Hit Ratio The cache hit ratio represents the efficiency of cache usage.

Metrics 130

Metrics Monitoring Latency Cache 130

The Morning Paper

OCTOBER 18, 2020

Radix Sort is carefully designed to make effective use of the L2 cache and sequential memory accesses, whereas Learned Sort is making random accesses all over the destination array. How can learned sort be adapted to make it cache-efficient? If it’s high performance you’re after, you can’t ignore mechanical sympathy.

Cache 137

Cache C++ Java Tuning 137

Percona

MAY 1, 2023

Out of the box, the default PostgreSQL configuration is not tuned for any particular workload. It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. What is PostgreSQL performance tuning? Why is PostgreSQL performance tuning important?

Tuning 52

Tuning Database Efficiency Performance 52

KeyCDN

NOVEMBER 4, 2021

Alternatively, If you would like to request a POP in a certain location or a new feature please let us know and stay tuned for more exciting announcements. For more POPs planned, check our current network for a list of both active and planned edge server locations.

Latency 111

Latency Tuning Cache Traffic 111

Percona

NOVEMBER 9, 2023

With this data, we’ll be able to better understand and tune our Postgres servers. The main idea is to be able to easily detect what the server is doing at any point in time so we can better understand how it reacts to the workload and tune accordingly. You can search the blog for more information on this if needed.

Monitoring 125

Monitoring Tuning Metrics Servers 125

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

Tim Kadlec

APRIL 12, 2020

The cache hit was very low (a topic for another day), and whenever the server had to provide a fresh version of the page, it was taking an unacceptably long time more often than not. Synthetic tests, even properly tuned to match device and network characteristics, only occasionally surfaced the issue.

Tuning 70

Tuning Cache Network Servers 70

Brendan Gregg

FEBRUARY 9, 2018

In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. Much of my testing was on Linux 4.14.11 Also microbenchmarks, which often stress-test the system, will suffer the largest losses. and 4.14.12 DTLB and 4.4% DTLB and 1.1%

Performance 72

Performance Benchmarking Cache Tuning 72

n0derunner

JULY 23, 2019

Many different queries are executing in parallel, some hitting RAM cache, some hitting storage. The Postgres DB is totally un-tuned and contains purely default settings. The variation in the transaction rate is due to the benchmark itself, the transaction rate is not expected to be uniform.

Benchmarking 76

Benchmarking Storage Tuning Cache 76

Smashing Magazine

SEPTEMBER 6, 2021

This explains the challenges involved in deploying and testing HTTP/3 yourself. This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. This is more in-depth and technical.

Network 120

Network Servers Cache Traffic 120

Adrian Cockcroft

MARCH 21, 2020

AB Testing?—?So The first thing I found was that every user visible change we made went through an A/B test. An oft-quoted study by Microsoft Bing found that of the changes they test, one-third prove effective, one-third have neutral results, and one-third have negative results. So You Know What Really Works ??Castillo

Testing 52

Testing Tuning Database Cache 52

Percona

JULY 6, 2023

then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. Next is the table definition.

Best Practices 111

Best Practices Tuning Testing Database 111

The Netflix TechBlog

OCTOBER 18, 2019

Contextual and Multi-armed Bandits enable faster and adaptive alternatives to traditional A/B Testing. Some simulation results and some online A/B test results were shared, demonstrating substantial lifts in the primary business metrics, while keeping the secondary metrics above preset guardrails.

Infrastructure 131

Infrastructure Metrics Architecture Efficiency 131

HammerDB

APRIL 19, 2023

Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. Please refer to this tuning guide to tune the system for HammerDB: Open Source Database Tuning Guide on 3rd Generation Intel® Xeon® Scalable Processors Based Platform. 4.22 %usr 38.40

Performance 55

Performance Benchmarking Cache Storage 55

Percona

JULY 27, 2023

This could be handy for tracking query tuning and performance auditing. The statements include ALTER TABLE, ANALYZE TABLE, CACHE INDEX, CHECK TABLE, CREATE INDEX, CREATE TABLE, DROP INDEX, LOAD INDEX, OPTIMIZE TABLE, REPAIR TABLE, TRUNCATE TABLE, DROP TABLE, and any open cursors. For those wondering when Percona’s 8.0.34

Servers 98

Servers Open Source Tuning Cache 98

Rigor

SEPTEMBER 3, 2019

What you may be overlooking is that peak-event readiness is about more than just load testing or ensuring that your servers are up throughout a specific timeframe. At a minimum, Optimal recommends that you have RUM, APM, synthetic, and load test tools set up, instrumented, and producing meaningful data.

Website 74

Website Cache Traffic Ecommerce 74

The Netflix TechBlog

OCTOBER 18, 2019

Contextual and Multi-armed Bandits enable faster and adaptive alternatives to traditional A/B Testing. Some simulation results and some online A/B test results were shared, demonstrating substantial lifts in the primary business metrics, while keeping the secondary metrics above preset guardrails.

Infrastructure 100

Infrastructure Metrics Architecture Efficiency 100

SQL Performance

JANUARY 11, 2021

So when their compiled application sends ad hoc queries to SQL Server, particularly as a prepared statement, and when we don't have the freedom to add or change indexes, several tuning opportunities are immediately off the table. You won't be able to check the plan cache for these results, because of the recompile. TheThings. (

Cache 59

Cache Tuning Database Performance 59

KeyCDN

JUNE 16, 2021

Alternatively, If you would like to request a POP in a certain location or a new feature please let us know and stay tuned for more exciting announcements. In this case, the Denver POP's identifier is usde. The first two letters stand for the country TLD , while the 3rd and 4th letters are for the city.

Tuning 52

Tuning Cache Network Speed 52

Percona

JANUARY 17, 2019

Aurora Parallel Query response time (for queries which can not use indexes) can be 5x-10x better compared to the non-parallel fully cached operations. Test data and versions. For my test, I need to choose: Aurora instance type and comparison. The second and third run used the cached data. This query is 100% cached.

Cache 72

Cache C++ AWS Airlines 72

MachMetrics

JULY 31, 2020

As we discussed in our article on how to test your page weight , compression is pretty much standard practice in web performance now, so you absolutely want to make sure you’re taking advantage of it. It also offers 9 levels of compression, so that the amount of compression and the time it takes to compress can be fine-tuned.

Speed 67

Speed Servers Google Tuning 67

Brendan Gregg

JUNE 30, 2018

A co-worker introduced me to Craig Hanson and Pat Crain's performance mantras, which neatly summarize much of what we do in performance analysis and tuning. This is a sanity test. In some cases, a benchmark may appear to exceed network bandwidth because it returns from a local memory cache instead of the remote target.

Benchmarking 47

Benchmarking Latency Cache Network 47

Smashing Magazine

APRIL 11, 2022

web.dev’s main content is an image according to LCP (test ran on WebPageTest). However, developers with a deep understanding of the project may want to improve performance beyond that by doing some fine-tuning under the hood. We can run Lighthouse test to check the metrics and use this data for comparison. Large preview ).

Media 78

Media Tuning Metrics Google 78

Enprowess

MARCH 4, 2018

Enable cluster link for cache replication. ComboPooledDataSource”> /> Testing : Start nodes sequentially, once Liferay portals are up and running Log in and Add any sample portlet on page to node1 and on node2 refresh the page. Repeat the test with reverse roles. Repeat the test with reversed roles.

Cache 40

Cache Transportation Media Traffic 40

Percona

APRIL 17, 2023

The main objective of this post is to share my experience over the past years tuning MongoDB and centralize the diverse sources that I crossed in this journey in a unique place. systemctl stop tuned $ systemctl disable tuned Dirty ratio The dirty_ratio is the percentage of total system memory that can hold dirty pages.

Best Practices 52

Best Practices Design Tuning Database 52

Brendan Gregg

FEBRUARY 8, 2018

In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. Much of my testing was on Linux 4.14.11 Also microbenchmarks, which often stress-test the system, will suffer the largest losses. and 4.14.12 DTLB and 4.4% DTLB and 1.1%

Performance 40

Performance Benchmarking Cache Tuning 40

KeyCDN

JANUARY 31, 2019

Alternatively, If you would like to request a POP in a certain location or a new feature please let us know on our feature requests community page and stay tuned for more exciting announcements. The first two letters stand for the country TLD , while the 3rd and 4th letters are for the city. Happy content delivery!

Internet 48

Internet Internet Ecommerce Speed 48