Scalegrid

JANUARY 19, 2024

For example, memory-resident databases without persistent disks, such as Redis cluster setups or Apache Spark installations, rely on stand-alone machines. To traditional relational databases, where rollbacks are less likely to cause data loss, MongoDB differs significantly.

Database 130

Database Network Servers Monitoring 130

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

All Things Distributed

JUNE 20, 2017

This enables customers to serve content to their end users with low latency, giving them the best application experience. In 2008, AWS opened a point of presence (PoP) in Hong Kong to enable customers to serve content to their end users with low latency. Since then, AWS has added two more PoPs in Hong Kong, the latest in 2016.

AWS 146

AWS Logistics Cloud Social Media 146

SQL Performance

FEBRUARY 22, 2021

Recently one of our teams was investigating a log reader latency issue. We pay a lot of attention to latency here, along with any long-running transactions, because of downstream impact to technologies that use the log reader – like Availability Groups and transactional replication.

Latency 57

Latency Servers Monitoring Systems 57

Percona

JANUARY 24, 2023

Some of the built-in features ( wal_compression ) have been there since 2016, and almost all backup tools do the WAL compression before taking it to the backup repository. Such “torn pages” are corruptions from the database point of view. Individual processes generate WAL records, and latency is very crucial for transactions.

Database 118

Database Benchmarking Open Source Latency 118

SQL Server According to Bob

SEPTEMBER 26, 2016

Our customers who deployed Availability Groups were now using servers for primary and secondary replicas with 12+ core sockets and flash storage SSD arrays providing microsecond to low millisecond latencies. However, if you are looking to accelerate your hardware, our Always On Availability Group design for SQL Server 2016 can keep pace.

Availability 40

Availability Servers Hardware Benchmarking 40

Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. In 2016, Jio swept over the subcontinent like a monsoon dropping a torrent of 4G infrastructure and free data rather than rain.

Performance 124

Performance Network Cache Metrics 124