This situation may seem pathological, limited to things like mail server spool directories.
File systems designed in an era when the largest disks held tens of thousands of files tend to choke on modern workloads where a single directory could contain hundreds of thousands of files, and the entire disk could contain many millions. It's mostly that large disks can hold so many more small files. It's not so much that the minimum storage required for each small file has grown (although it has in some cases, with large block sizes on file systems optimized for high-bandwidth i/o). As disk sizes have grown, very small files have become the enemy of file system efficiency. I chose these features because each has a potential benefit to Mac OS X users and developers.Įfficient storage and handling of very small files. ZFS and ReiserFS are just two examples of modern file systems, and the list of features above is far from exhaustive. Both file systems are notable for their willingness to reconsider past assumptions about file system design. ReiserFS is a bit older, but it covers some of the same territory. It's the most "modern" (in terms of release date, at the very least) of the modern file systems. It's no surprise that many of those bullet points were pulled from the ZFS home page. Improved data integrity using checksums on all data.Logical volume management through a pooled storage model.Efficient storage and handling of very small files.Today, there are new capabilities that the best modern file systems have, but that HFS+, even with all of its recent additions, does not. HFS+ is only eight years old, but it's built on many of the design decisions of HFS. HFS was a state-of-the-art personal computer file system when it was first released. Does Mac OS X really need a new file system? It can even be case-sensitive to satisfy the Unix geeks. It supports arbitrarily extensible metadata. Why should the mere name "Time Machine" scream "new file system" to anyone? And why the excitement about a new file system in the first place? What's wrong with HFS+, Mac OS X's current file system? It's got journaling. In fact, it was my personal favorite bingo square, and the one that I most looked forward to marking.īut let's back up a bit. That feature was Time Machine, and the name alone was enough to cause one particular phrase to hammer in the mind of many people, including me: " New file system in Leopard!" It was even a bingo square.
#GAME CREATING SOFTWARE SUPPORTED BY MAC OS X 10.0 AND ABOVE FOR MAC#
For Mac geeks of a certain persuasion, the first mention of a soon-to-be-revealed feature of Leopard during the WWDC keynote set off a mental chain-reaction.
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