From c03d8e84f433dcc7476999ebb75887352838fc59 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Fri, 31 Mar 2017 15:01:06 -0800 Subject: update todo --- Todo.mdwn | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'Todo.mdwn') diff --git a/Todo.mdwn b/Todo.mdwn index c568438..4eaec7e 100644 --- a/Todo.mdwn +++ b/Todo.mdwn @@ -15,6 +15,18 @@ is implementing a new kind of reservation of journal space for the new, long running transactions. + * Allocation information (currently just bucket generation numbers & priority + numbers, for LRU caching) needs to be moved into a btree, and we need to + start persisting actual allocation information so we don't have to walk all + extents at mount time. + + Just moving the existing prios/gens to a btree will be a significant + improvement - besides getting us incrementally closer to persisting full + allocation information, the existing code is a rather hacky mechanism dating + from the early days of bcache and has recently been the source of an annoying + bug due to the design being a bit fragile, and it'll be a performance + improvement since it'll get rid of the last source of forced journal flushes. + ### Other * When we're using compression, we end up wasting a fair amount of space on @@ -56,6 +68,8 @@ ## Developers + * End user documentation needs a lot of work - complete man pages, etc. + * bcachefs-tools needs some fleshing out in the --help department ## Users -- cgit v1.2.3