Tempesta Technologies

06/24/2025

Forbes Technology Council has published an article by our CEO on accelerating Web Application Firewalls (WAF)

Web security and performance are tightly linked aspects of any web application: It’s impossible to achieve strong security on an underperforming infrastructure.

01/28/2025

On this Saturday we'll be talking about HTTP streams on 2025, in the Web Performance track, https://fosdem.org/2025/schedule/event/fosdem-2025-4903-scheduling-http-streams/ . Welcome!

Scheduling problem arise in many subsystems such as the CPU scheduler, disk IO or Qdisc. Despite extensive research during several decades, this problem remain challenging to solve due to varying workload requirements, diversity of scheduled resources, latency versus throughput considerations, sched...

01/22/2025

The US government recently issued several documents advocating a transition from C, C++, and Assembly to memory-safe languages like Rust, particularly for software with high-security requirements. In our article https://tempesta-tech.com/blog/memory-safety-and-network-security/, we explore the current state of safety in modern C and C++, leveraging modern compilers, and discuss why not everything can be rewritten in Rust.

07/17/2024

The Tempesta FW core team has given a talk about high-performance fair HTTP streams scheduling, discussing RFCs 7540 and 9218 for HTTP/2 and HTTP/3, along with advanced data structures and efficient WFQ scheduling algorithms.

https://netdevconf.info/0x18/sessions/talk/scheduling-http-streams.html

04/09/2024

https://tempesta-tech.com/blog/building-your-own-wordpress-staging-with-tempesta-fw/

There are many articles in the Internet about website staging, what it is and why do you need one. In this article we describe how to build your own staging and a couple of gotchas you might face on this way.

10/10/2023

Now Tempesta FW in the release 0.7 supports WordPress over HTTP/2 0.7. During the work we also discovered several issues with the modern open source server and client streams prioritization implementations

https://tempesta-tech.com/blog/tempesta-fw-0-7-release-wordpress-on-http-2/

11/25/2022

CppCon has published Alexander Krizhanovsky's talk about lock-free cache conscious data structures (primary hybrids of hash tables and trees) used in the Tempesta FW web cache and other storages. https://www.youtube.com/watch?v=_dS4Z6JifPs

https://cppcon.org/---Scalable and Low Latency Lock-free Data Structures in C++ - Alexander Krizhanovsky - CppCon 2022https://github.com/CppCon/CppCon2022Ima...

06/27/2022

We proud to be a sponsor of Netdev 0x16 conference - the best conference on Linux networking! https://staging.netdevconf.info/0x16/news.html?bronze-sponsor-tempesta

02/23/2022

We traced Nginx running on a 80 CPU server as a CDN node in one of the world largest Internet exchange point. We revealed that a ligh-weight monitoring process may cause severe latencies due to the Linux CPU scheduler. During the investigations we had a lot of fun with eBPF and perf. https://tempesta-tech.com/blog/nginx-tail-latency

In this article we trace Nginx running on a 80 CPU server as a CDN node in one of the world largest Internet exchange point. We revealed that a ligh-weight monitoring process may cause severe latencies due to the Linux CPU scheduler. During the investigations we had a lot of fun with eBPF and perf.

11/01/2021

Dear friends, we're looking for talented C/C++ Linux developers. This is a remote position where you can learn advanced algorithms, the Linux and x86-64 internals, the cutting-edge scalable multi-core synchronization approaches. https://hh.ru/vacancy/49300883

08/05/2021

How do we know a developer writes quality code? what at all constitutes the quality and why should we care?
What if you’re not well acquainted with the development process yourself?
All that accompanied with examples and recommendations.
https://www.linkedin.com/feed/update/urn:li:activity:6828971847825129474

We are going to look into how quality requirements in code design differ between in-house and IT consulting / custom development, when a developer is invited...

07/23/2021

https://tempesta-tech.com/blog/lean-video-conferencing-billing-keep-it-simple-make-it-fast

Learn how to build a high performance billing system for video conferencing services. This article studies the case of a lean startup who we helped to with building the system. We focus not only on the system performance, but also how to make it with as low budget as possible.