Resource Limits The Linux kernel has protective mechanisms to prevent processes from consuming excessive memory. Since BPF maps can consume a significant amount of memory, they are also subject to these mechanisms. rlimit (Resource Limit) <span>rlimit</span> (resource limit) is a system mechanism used to track and limit the amount of specific resources that a process … Read more
The Linux Control Groups (cgroups) is a mechanism provided by the Linux kernel to limit, control, and isolate the resources (such as CPU, memory, disk I/O, etc.) of a group of processes. Cgroup v1 and v2 are two major versions that have significant differences in design and functionality. 1. Architecture cgroup v1: Uses a hierarchical … Read more
The core problem that Docker solves is application packaging. Containers themselves have no value; the value lies in container orchestration. Underlying Principles of Docker The underlying principles of Docker utilize Linux’s Cgroups and Namespace technologies. Cgroups are the primary means of creating constraints, while Namespace technology is the main method for modifying process views (isolation). … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 1000-person technical exchange QQ group Note [Public Account] for faster approval In Linux, there are two ways to control resources: One is based on POSIX (dependent on the PAM module), which limits user session resources. The other is based on Cgroup, mainly used … Read more