-------------------------------------------------------------------------------- Fedora EPEL Update Notification FEDORA-EPEL-2021-17a93b09a2 2021-03-20 00:40:11.437656 --------------------------------------------------------------------------------

Name : oomd Product : Fedora EPEL 8 Version : 0.4.0 Release : 6.el8 URL : https://github.com/facebookincubator/oomd/ Summary : Userspace Out-Of-Memory (OOM) killer Description : Out of memory killing has historically happened inside kernel space. On a memory overcommitted linux system, malloc(2) and friends usually never fail. However, if an application dereferences the returned pointer and the system has run out of physical memory, the linux kernel is forced take extreme measures, up to and including killing processes. This is sometimes a slow and painful process because the kernel can spend an unbounded amount of time swapping in and out pages and evicting the page cache. Furthermore, configuring policy is not very flexible while being somewhat complicated.

oomd aims to solve this problem in userspace. oomd leverages PSI and cgroupv2 to monitor a system holistically. oomd then takes corrective action in userspace before an OOM occurs in kernel space. Corrective action is configured via a flexible plugin system, in which custom code can be written. By default, this involves killing offending processes. This enables an unparalleled level of flexibility where each workload can have custom protection rules. Furthermore, time spent livedlocked in kernelspace is minimized.

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Initial version for EPEL 8. -------------------------------------------------------------------------------- ChangeLog:

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This update can be installed with the "yum" update programs. Use su -c 'yum update oomd' at the command line. For more information, refer to "YUM", available at https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7%5C /html/System_Administrators_Guide/ch-yum.html

All packages are signed with the Fedora EPEL GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys --------------------------------------------------------------------------------