Percona

MARCH 20, 2023

When designing an architecture, many components need to be considered before deciding on the best solution. MySQL router, after the 2048 connection, could not serve anything more. HAProxy performs better with a low number of connections, while ProxySQL performs better when a high number of connections is in place.

Games 119

Games Latency Traffic Cache 119

SQL Server According to Bob

JANUARY 31, 2017

Scatter/gather capabilities allow more efficient memory to disk transfers reducing redundant memory copies, sorting and other activities applications may require to gain improved I/O performance. On Linux the total number of buffers that can be read or written, in a single ABI request, is capped at 2048.

Servers 40

Servers Software Engineering Operating System Database 40

Percona

AUGUST 21, 2023

Even though there is an encrypted session between psql and the Postgres server, there is no encrypted session between Postgres and LDAP as authentication is performed: SSL connection (protocol: TLSv1.3, Download Percona Distribution for PostgreSQL Today!

C++ 69

C++ Servers Open Source Testing 69

Testsigma

MAY 5, 2021

For instance, if we design features that run on Safari on Mac OS, those features may not function across other browsers. To ensure the features run uniformly across various browsers and OS versions that our users have, we should perform multi-browser testing. And, we all know that a few browsers can limit certain features.

Testing Tools 74

Testing Tools Testing Internet Internet 74

Percona

AUGUST 29, 2023

Reference tables can be replicated to all nodes for joins and foreign keys from distributed tables and for maximum read performance. Depending on the configuration, one can tune a hardware RAID for either performance or redundancy. The same can be said for Citus data sharding. The colors indicate duplicated shards of the table.

C++ 78

C++ Database Storage Testing 78

Brendan Gregg

AUGUST 18, 2019

bpftrace is a new open source tracer for Linux for analyzing production performance problems and troubleshooting software. Linux already has many performance tools, but these are often counter-based and have limited visibility. Originally posted at https:/opensource.com/article/19/8/introduction-bpftrace. bashreadline.bt

Latency 68

Latency C++ Cache Programming 68

CSS - Tricks

MAY 15, 2019

You might have to perform a hard reload ( CTRL + Shift + R ) to re-trigger range requests. In contrast to JavaScript lazy-loading libraries, native lazy-loading uses a kind of pre-flight request to get the first 2048?bytes You can find a comprehensive list of requirements in Scott Little's design documentation. References.

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