mirror of
https://github.com/opnsense/src.git
synced 2026-06-05 23:04:36 -04:00
a0895e394d
This lets tarfs provide readahead/behind hints to the VFS, which helps memory-mapped I/O performance, important when running faulting in executables out of a tarfs mount as one might if tarfs is used to back the root filesystem, for example. The improvement is particularly noticeable when the backing tarball is zstd-compressed. The implementation simply returns the extent of the virtual block containing the target offset, clamped by the maximum I/O size. This is perhaps simplistic; it effectively just chooses values that would correspond to a single VOP_READ call in tarfs_read_file(). Reviewed by: des, kib MFC after: 1 month Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D44626 |
||
|---|---|---|
| .. | ||
| autofs | ||
| cd9660 | ||
| cuse | ||
| deadfs | ||
| devfs | ||
| ext2fs | ||
| fdescfs | ||
| fifofs | ||
| fuse | ||
| mntfs | ||
| msdosfs | ||
| nfs | ||
| nfsclient | ||
| nfsserver | ||
| nullfs | ||
| procfs | ||
| pseudofs | ||
| smbfs | ||
| tarfs | ||
| tmpfs | ||
| udf | ||
| unionfs | ||