nocache

Minimize caching effects for applications

The nocache tool tries to minimize the effect an application has on the Linux file system cache. This is done by intercepting the open and close system calls and calling posix_fadvise with the POSIX_FADV_DONTNEED parameter. Because the library remembers which pages were already in file system cache when the file was opened, these will not be marked as "don't need", because other applications might need that, although they are not actively used (think: hot standby). Use case: backup processes that should not interfere with the present state of the cache.

homepage ↗ github: Feh/nocache