Linux : ram disk
linux支援以memory做作為disk方法,來提升存取效率. 但也意味著資料會隨著電源關閉而消失. 以下為常見的方法列表與特性. tmpfs ramfs ramdisk Write out of limitation Error keep writing Error Fixed Size Y N Y Uses Swap Y N N Volatile Storage Y Y Y format before use N N Y 以下為各種ram disk的相關指令 tmpfs root@~# mkdir tmpfs root@~# mount -t tmpfs -o size=20m tmpfs tmpfs/ ramfs root@~# mkdir ramfs root@~# mount -t ramfs -o size=20m ramfs tmpfs/ ramdisk root@~# mkdir ramdisk root@~# mkfs.ext3 /dev/ram9 mke2fs 1.42.13 (17-May-2015) Discarding device blocks: done Creating filesystem with 65536 1k blocks and 16384 inodes Filesystem UUID: df58a293-4574-4e95-bde5-e60618eee94b Superblock backups stored on blocks: 8193, 24577, 40961, 57345 Allocating group tables: done Writing inode tables: done Creating journal (4096 blocks): done Writing superblocks and filesystem accoun...