David Goldblatt
36c6bfb963
SEC: Allow arbitrarily many shards, cached sizes.
2021-05-22 08:17:41 -07:00
David Goldblatt
fb327368db
SEC: Expand option configurability.
...
This change pulls the SEC options into a struct, which simplifies their handling
across various modules (e.g. PA needs to forward on SEC options from the
malloc_conf string, but it doesn't really need to know their names). While
we're here, make some of the fixed constants configurable, and unify naming from
the configuration options to the internals.
2021-02-19 15:10:54 -08:00
David Goldblatt
cdae6706a6
SEC: Use batch fills.
...
Currently, this doesn't help much, since no PAI implementation supports
flushing. This will change in subsequent commits.
2021-02-19 15:10:54 -08:00
David Goldblatt
480f3b11cd
Add a batch allocation interface to the PAI.
...
For now, no real allocator actually implements this interface; this will change
in subsequent diffs.
2021-02-19 15:10:54 -08:00
David Goldblatt
bf448d7a5a
SEC: Reduce lock hold times.
...
Only flush a subset of extents during flushing, and drop the lock while doing
so.
2021-02-19 15:10:54 -08:00
David Goldblatt
f47b4c2cd8
PAI/SEC: Add a dalloc_batch function.
...
This lets the SEC flush all of its items in a single call, rather than flushing
everything at once.
2021-02-19 15:10:54 -08:00
David Goldblatt
ea51e97bb8
Add SEC module: a small extent cache.
...
This can be used to take pressure off a more centralized, worse-sharded
allocator without requiring a full break of the arena abstraction.
2020-10-23 11:14:34 -07:00
