- Spin up a background thread to call the shrinkers every 1 second
- Memory allocations will only call reclaim after a failed allocation,
not every single time
This will be a major performance boost on allocation intensive
workloads.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This would correspond to GFP_RECLAIM in the kernel - but we don't
distinguish between different types of reclaim here.
This solves a deadlock in the btree node memory allocation path - we
allocate with the btree node cache lock held but without GFP_KERNEL set.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
After memory allocation failure, don't rely on /proc/meminfo to figure
out how much memory we should free - instead unconditionally free 1/8th
of each cache.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
