On Sun, Oct 29, 2023 at 06:19:24PM +0200, Ariel Miculas wrote: > +2.1 Mount options > +----------------- > +=================== ========================================================= > +errors=%s Specify whether squashfs errors trigger a kernel panic > + or not > + > + ========== ============================================= > + continue errors don't trigger a panic (default) > + panic trigger a panic when errors are encountered, > + similar to several other filesystems (e.g. > + btrfs, ext4, f2fs, GFS2, jfs, ntfs, ubifs) > + > + This allows a kernel dump to be saved, > + useful for analyzing and debugging the > + corruption. > + ========== ============================================= > +threads=%s Select the decompression mode or the number of threads > + > + If SQUASHFS_CHOICE_DECOMP_BY_MOUNT is set: > + > + ========== ============================================= > + single use single-threaded decompression (default) > + > + Only one block (data or metadata) can be > + decompressed at any one time. This limits > + CPU and memory usage to a minimum, but it > + also gives poor performance on parallel I/O > + workloads when using multiple CPU machines > + due to waiting on decompressor availability. > + multi use up to two parallel decompressors per core > + > + If you have a parallel I/O workload and your > + system has enough memory, using this option > + may improve overall I/O performance. It > + dynamically allocates decompressors on a > + demand basis. > + percpu use a maximum of one decompressor per core > + > + It uses percpu variables to ensure > + decompression is load-balanced across the > + cores. > + 1|2|3|... configure the number of threads used for > + decompression > + > + The upper limit is num_online_cpus() * 2. > + ========== ============================================= > + > + If SQUASHFS_CHOICE_DECOMP_BY_MOUNT is **not** set and > + SQUASHFS_DECOMP_MULTI is set: > + > + ========== ============================================= > + 2|3|... configure the number of threads used for > + decompression > + > + The upper limit is num_online_cpus() * 2. > + ========== ============================================= > + > +=================== ========================================================= > + > The doc LGTM, thanks! Reviewed-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx> -- An old man doll... just what I always wanted! - Clara
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