According to this article at eWEEK, Apple is preparing to release OS X 10.2.2, aka “Elvis” in the next few weeks. Elvis will feature an optional fully journaling filesystem, which can be enabled from the command line. For those of us migrating to OS X from BeOS, this is huge news – Be’s BFS was one of the operating system’s crown jewels (full journaling was only one of BFS’ selling points). Unfortunately, journaling is expected to slow OS X down 10-15%, which was not true of BFS. Prayers are being answered, one at a time…
The article is asinine…. The Journalling would logically slow down FILESYSTEM performance, not overall system performance (and probably just writes, at that)… And I would expect that 10-15% would be about right given the overhead….
lol
I saw this article earlier today, and as soon as I saw it I thought — Shacker will be very pleased, keep eyes open for related post.
:)
Sean, that’s what I thought too, but decided not to question the article since I haven’t seen it for myself. And remember fileystem performance touches on system performance all the time, almost inseparably. I wonder what Dominic would have to say about this…
I wonder if it’s really going to be a _fully_ journaling filesystem, or if the journaling is ‘only’ going to cover the metadata.
Lars, there isn’t much metadata in OS X, so there wouldn’t be much point (hopefully in the future!). It’s full journaling.
Ah, small confusion regarding the term ‘metadata’ here: I meant it to mean the directories and other filesystem structures; even journaling only these would be a great step forward for OS-X.
Ah – I really don’t know – no one outside of Apple knows that right now….