haproxy
The Reliable, High Performance TCP/HTTP Load Balancer
HAProxy implements an event-driven, mono-process model which enables support for very high number of simultaneous connections at very high speeds. Multi-process or multi-threaded models can rarely cope with thousands of connections because of memory limits, system scheduler limits, and lock contention everywhere. Event-driven models do not have these problems because implementing all the tasks in user-space allows a finer resource and time management. The down side is that those programs generally don't scale well on multi-processor systems. That's the reason why they must be optimized to get the most work done from every CPU cycle.
There is no official package available for openSUSE Leap 15.5Distributions
openSUSE Tumbleweed
openSUSE Leap 15.5
openSUSE Leap 15.4
SUSE SLE-15-SP1
SUSE SLE-12-SP5
Debian Unstable
Debian 11
Debian 10
Fedora Rawhide (unstable)
ScientificLinux 7
RedHat RHEL-7
CentOS CentOS-8-Stream
CentOS CentOS-8
CentOS CentOS-7
Ubuntu 22.04
Ubuntu 20.04