Hi guys! In the last few months there are a lot of talks around Persistent Storages <http://pmem.io/> solutions and with the new Intel's 3D XPoints starting to have affordable prices I was thinking that having a memory mapped solution for the Artemis's Journal would be great: a mmap call against a file mounted on a persistent storage will mean direct access to the storage memory while writing, with super-fast flushes/commit on disk, when durability is needed... Having such kind of journal could be useful as it is right now, making a lot of operations against the journal more straightforward to be implemented (eg the encoding of messages could be directly addressed on the mapped bytes) and it will be future-proof too considering the arrival of this new type of storage...what do you think about it?
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