Searched hist:"7 c7e071d90ac278e462640570d739dd165d3acd0" (Results 1 – 2 of 2) sorted by relevance
| /linux/fs/bcachefs/ |
| H A D | trace.h | diff 7c7e071d90ac278e462640570d739dd165d3acd0 Mon Apr 04 02:36:32 CEST 2022 Kent Overstreet <kent.overstreet@gmail.com> bcachefs: Don't normalize to pages in btree cache shrinker
This behavior dates from the early, early days of bcache, and upon
further delving appears to not make any sense. The shrinker only works
in terms of 'objects' of unknown size; normalizing to pages only had the
effect of changing the batch size, which we could do directly - if we
wanted; we probably don't. Normalizing to pages meant our batch size was
very small, which seems to have been keeping us from doing as much
shrinking as we should be under heavy memory pressure; this patch
appears to alleviate some OOMs we've been seeing.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
|
| H A D | btree_cache.c | diff 7c7e071d90ac278e462640570d739dd165d3acd0 Mon Apr 04 02:36:32 CEST 2022 Kent Overstreet <kent.overstreet@gmail.com> bcachefs: Don't normalize to pages in btree cache shrinker
This behavior dates from the early, early days of bcache, and upon
further delving appears to not make any sense. The shrinker only works
in terms of 'objects' of unknown size; normalizing to pages only had the
effect of changing the batch size, which we could do directly - if we
wanted; we probably don't. Normalizing to pages meant our batch size was
very small, which seems to have been keeping us from doing as much
shrinking as we should be under heavy memory pressure; this patch
appears to alleviate some OOMs we've been seeing.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
|