Dynatrace

JANUARY 31, 2024

Model observability provides visibility into resource consumption and operation costs, aiding in optimization and ensuring the most efficient use of available resources. To leverage these integrations and embark on a journey toward optimized AI performance, explore our documentation for seamless onboarding.

Cache 199

Cache Azure Infrastructure Monitoring 199

Scalegrid

JANUARY 19, 2024

In such cases, rollback becomes necessary to reconcile divergent data among all members of replicas ensuring consistent information throughout multi-document transactions without any inconsistencies arising due to differences between replicated sets. Consequences of Rollbacks After a rollback occurs, the consequences can be quite severe.

Database 130

Database Network Servers Monitoring 130

Scalegrid

DECEMBER 14, 2023

Faster detection of a bad connection is accomplished when there’s a lower value, while latency or intermittent network issues may be better served by increasing it slightly – although overly long timeouts can result in application hang-ups with little chance for an established link.

Java 130

Java Network Servers Database 130

The Netflix TechBlog

AUGUST 30, 2021

For example, when running tests, the state of the device will change from “available for testing” to “in test.” Build a Spring @Configuration class that autowires the KafkaProperties bean injected by the Netflix Spring runtime and, using the Kafka settings available from that bean, construct an Alpakka-Kafka ConsumerSettings bean.

Latency 213

Latency Traffic Transportation Cloud 213

The Netflix TechBlog

SEPTEMBER 8, 2020

For each route we migrated, we wanted to make sure we were not introducing any regressions: either in the form of missing (or worse, wrong) data, or by increasing the latency of each endpoint. You can find a lot more details about how this works in the Spinnaker canaries documentation. This meant that data that was static (e.g.

Latency 233

Latency Cache Java Traffic 233

Adrian Cockcroft

JANUARY 29, 2023

The mean and percentile measurements hide this structure, but the rest of this post will show how the structure can be measured and analyzed so that you can figure out a useful model of your system, understand what is driving the long tail of latencies and come up with better SLAs and measures of capacity.

Lambda 98

Lambda Latency Cache C++ 98

CSS Wizardry

MAY 19, 2020

Their ability to serve the tiniest possible font files tailored to specific user agents and platforms is amazing, and with such a huge, freely-available library served from Google-grade CDNs… I definitely see why people continue to turn to it. On a high-latency connection, this spells bad news. Let’s see what happens.

Google 364

Google Media Latency Metrics 364

Scalegrid

JUNE 18, 2019

In this blog, we’ll show you how to connect to a MongoDB server configured with self-signed certificates for SSL using both the Ruby MongoDB driver and the popular Object-Document-Mapper (ODM) mongoid. The connection options available for the driver are documented here , and the options we will need are: :ssl. ssl_verify.

C++ 100

C++ Servers Database Network 100

Percona

MAY 2, 2023

Since your dataset is 100 GB and you have 500 GB of RAM, you can allocate a significant portion of the available memory to the InnoDB buffer pool. A commonly recommended value for the buffer pool size is between 50% to 75% of the available memory. So the actual answer is highly dependent on the workload (i.e.

Social Media 121

Social Media Database Servers Cache 121

Smashing Magazine

AUGUST 3, 2021

Lots can go wrong: a network request fails, a third-party library breaks, a JavaScript feature is unsupported (assuming JavaScript is even available), a CDN goes down, a user behaves unexpectedly (they double-click a submit button), the list goes on. Both examples check something is available before using it. More after jump!

Network 145

Network Engineering Availability Monitoring 145

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map. runqlat CPU scheduler latency heat map. There is already documentation as man pages and example files in the bcc and bpftrace repositories that you can link to, to help your customers understand the tool output. execsnoop New processes (via exec(2)) table. at the time.

Latency 145

Latency Cache Energy Systems 145

SQL Performance

FEBRUARY 22, 2021

The official documentation for sys.sysprocesses warns: This SQL Server 2000 system table is included as a view for backward compatibility. Recently one of our teams was investigating a log reader latency issue. We recommend that you use the current SQL Server system views instead.

Latency 57

Latency Servers Monitoring Systems 57

The Morning Paper

FEBRUARY 23, 2020

It would be possible for a coordinator to also maintain their own giant copy of the public data available in the system, assuming some freshness guarantees, but the payment mechanisms in AnyLog make a crawl in advance of queries unattractive. SLA enforcement of availability clauses. Incentives for contractors.

Blockchain 94

Blockchain Internet Internet IoT 94

SQL Performance

FEBRUARY 26, 2020

Azure SQL Database Managed Instance became generally available in late 2018. The General Purpose tier is designed for applications with typical performance and I/O latency requirements and provides built-in HA. The Business Critical tier is designed for applications that require low I/O latency and higher HA requirements.

Azure 63

Azure Performance Storage Latency 63

CSS Wizardry

OCTOBER 16, 2023

What is the availability, configurability, and efficacy of each? ?️ Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download. And do any of our previous decisions dictate our options?

Cache 291

Cache Latency Strategy Speed 291

HammerDB

OCTOBER 23, 2023

Note that for all tests, we used the local loopback address and port to provide the lowest possible network latency between client and server and also so we don’t have any concerns about bandwidth limitations. Use the performance metrics available in the database first before looking at data further down in the stack.

Benchmarking 62

Benchmarking Database Network C++ 62

cdemi

DECEMBER 4, 2016

Maximizing Availability : Delays or Downtime of the service does not affect the application generating the messages. Message Brokers are servers that take care of Queue Handling , Routing Messages, High Availability and Scaling out. Maximizing Scalability : Number of Queues and Services can be varied to meet Demand.

Design 47

Design Azure Scalability Latency 47

Dotcom-Montior

DECEMBER 8, 2021

This helps to improve efficiency and ensures that information is consistent, up-to-date, and available. Knowing when and where an error, downtime, or application latency occurs is a critical factor in limiting the impact to users and customers. Incident Management Lifecyle: Process and Steps.

Social Media 90

Social Media Monitoring Latency DevOps 90

Testsigma

AUGUST 24, 2020

Teams often resort to using in-house test automation tools or frameworks which are neither well-documented nor well-maintained. Maintaining test data in a central repository and then accessing it from different test environments may ease this problem but may introduce other issues like network latency in tests.

Testing 69

Testing Open Source Scalability Latency 69

Dynatrace

AUGUST 25, 2023

These signals ( latency, traffic, errors, and saturation ) provide a solid means of proactively monitoring operative systems via SLOs and tracking business success. SLOs, as a measure of service quality, can track the related availability, reliability, and performance. This is what Dynatrace captures as response time.

Performance 169

Performance Latency Traffic Metrics 169

HammerDB

MAY 5, 2019

However in the Skylake microarchitecture (you can see a list of CPUs here ) the PAUSE instruction changed and in the documentation it says “the latency of the PAUSE instruction in prior generation microarchitectures is about 10 cycles, whereas in Skylake microarchitecture it has been extended to as many as 140 cycles.”

Testing 48

Testing Tuning Latency Storage 48

HammerDB

DECEMBER 5, 2020

First of all it has always been clear in the HammerDB documentation that the TPROC-C/TPC-C and TPROC-H/TPC-H workloads have not been ‘real’ audited and published TPC results instead providing a tool to run workloads based on these specifications. The user can then modify the schema as they wish.

C++ 40

C++ Benchmarking Virtualization Open Source 40

Abhishek Tiwari

JULY 12, 2018

Data Pipeline A data pipeline is a software that ingests data from multiple sources, transforms it and finally makes it available to internal or external products. Processing latency is minimum If only you can infinitely scale your data pipeline, processing latency can be guaranteed to be minimum, but we know for sure that is not true.

Latency 63

Latency Analytics Scalability Engineering 63

O'Reilly

DECEMBER 2, 2019

For applications like communication between AVs, latency–how long it takes to get a response–is more likely to be a bigger limitation than raw bandwidth, and is subject to limits imposed by physics. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

Adrian Cockcroft

APRIL 18, 2018

Juvenal Photo taken in Lisbon Portugal by Adrian Cockcroft The documentation for most monitoring tools describes how to use that tool in isolation, often as if no other tools exist, but sometimes with ways to import or export some of the data to other tools. “Quis custodiet ipsos custodes?”?—?Juvenal There are some services like latency.at

Monitoring 40

Monitoring Systems Virtualization Metrics 40

The Netflix TechBlog

JUNE 13, 2023

By collecting and analyzing key performance metrics of the service over time, we can assess the impact of the new changes and determine if they meet the availability, latency, and performance requirements. One can perform this comparison live on the request path or offline based on the latency requirements of the particular use case.

Traffic 279

Traffic Metrics Systems Strategy 279

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map 5. runqlat CPU scheduler latency heat map 10. There is already documentation as man pages and example files in the bcc and bpftrace repositories that you can link to, to help your customers understand the tool output. execsnoop New processes (via exec(2)) table 2. at the time.

Open Source 40

Open Source Latency Cache Energy 40

Scalegrid

DECEMBER 16, 2019

It’s a cross-platform document-oriented database that uses JSON-like documents with schema, and is leveraged broadly across startup apps up to enterprise-level businesses developing modern apps. MongoDB is the #3 open source database and the #1 NoSQL database in the world. DigitalOcean Droplets. MongoDB Replication Strategies.

Azure 187

Azure AWS Latency Database 187

Percona

MARCH 29, 2023

OS: CentOS Linux 7 I’ve used mgenerate command to insert a sample document. s Time taken to import 120000000 document: 7412 seconds We can see from the above comparison that we can save almost 3GB of disk space without impacting the CPU or memory. Host config: 4vCPU, 14 GB RAM DB version: PSMDB 6.0.4

Storage 106

Storage Network Open Source Latency 106

The Netflix TechBlog

MARCH 7, 2023

But we cannot search or present low latency retrievals from files Etc. Marken Architecture Our goal was to help teams at Netflix to create data pipelines without thinking about how that data is available to the readers or the client teams. This API finds all Elasticsearch documents with ID1 and marks isAnnotationOperationActive=FALSE.

Media 264

Media Latency Architecture Database 264

CSS Wizardry

AUGUST 13, 2019

There was no appetite from them to do so, so I decided to make it all available for free anyway—a faster web benefits everyone. Although this response has a 0B filesize, we will always take the latency hit on every single page view (and this response is basically 100% latency). Next up, we get sent to fonts.[client].com

Latency 203

Latency Cache Strategy Media 203

Scalegrid

NOVEMBER 25, 2019

ScyllaDB offers significantly lower latency which allows you to process a high volume of data with minimal delay. percentile latency is up to 11X better than Cassandra on AWS EC2 bare metal. Their managed service, Scylla Cloud, is currently only available on AWS, and you must use the ScyllaDB Enterprise version to leverage their DBaaS.

Big Data 187

Big Data Database Open Source Azure 187

Percona

JULY 17, 2023

1 among non-relational/document-based systems ( DB-Engines, July 2023 ). Instead of the table-based structure of relational databases, MongoDB stores data in documents and collections, a design for handling large amounts of unstructured data and for real-time web applications. It ranks No. And MongoDB is popular across industries.

Open Source 75

Open Source Database Scalability Software 75

The Netflix TechBlog

AUGUST 22, 2019

Once the instance was available, the engineer would use a remote administration tool like RDP to login to the instance to install software and customize settings. The canary stage will determine a score based on metrics such as CPU, threads, latency, and GC pauses. Services are more reliable, testable, and documented.

DevOps 207

DevOps AWS Tuning Infrastructure 207

The Netflix TechBlog

NOVEMBER 2, 2021

This enables us to use our scale to increase throughput and reduce latencies. Here, based on the video length, the throughput and latency requirements, available scale etc., The quality results are now available to the caller via the getQuality endpoint. The workflow is initiated. Assembly for two of the metrics (e.g.

Media 171

Media Innovation Metrics Latency 171

Smashing Magazine

AUGUST 20, 2021

Now there’s a massive range of Jamstack CMSs available, which bring all the advantages of static sites while allowing non-technical folk to update content. What’s interesting is there was little mention of static sites in MoveableType’s documentation at all. These use cases include: Documentation. Large preview ).

Ecommerce 140

Ecommerce Website Government Internet 140

Dynatrace

DECEMBER 22, 2019

After being available in an Early Adopter Release, we’re happy to announce that AWS supporting services are now Generally Available (GA). Supporting services include every service that isn’t available with out-of-the-box Dynatrace monitoring. Amazon ElastiCache (see AWS documentation for Memcached and Redis ). Amazon EMR.

AWS 135

AWS Metrics IoT Storage 135