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| author | Justin M. Forbes <jforbes@fedoraproject.org> | 2020-08-04 17:00:01 -0500 |
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| committer | Justin M. Forbes <jforbes@fedoraproject.org> | 2020-08-04 17:00:01 -0500 |
| commit | 9ab9ea2db0b13375d3d7114d5c82eb298a118740 (patch) | |
| tree | eb4615cacf3e4ee8bd71c2522241011baa6c56fe /configs/fedora/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING | |
| parent | bf5b588422a50d970ea8660d368cc6cdd2c377c9 (diff) | |
| download | kernel-9ab9ea2db0b13375d3d7114d5c82eb298a118740.tar.gz kernel-9ab9ea2db0b13375d3d7114d5c82eb298a118740.tar.xz kernel-9ab9ea2db0b13375d3d7114d5c82eb298a118740.zip | |
Linux v5.8 rebase
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
Diffstat (limited to 'configs/fedora/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING')
| -rw-r--r-- | configs/fedora/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/configs/fedora/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING b/configs/fedora/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING new file mode 100644 index 000000000..2f3d89cf6 --- /dev/null +++ b/configs/fedora/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING @@ -0,0 +1,23 @@ +# CONFIG_ZSMALLOC_PGTABLE_MAPPING: +# +# By default, zsmalloc uses a copy-based object mapping method to +# access allocations that span two pages. However, if a particular +# architecture (ex, ARM) performs VM mapping faster than copying, +# then you should select this. This causes zsmalloc to use page table +# mapping rather than copying for object mapping. +# +# You can check speed with zsmalloc benchmark: +# https://github.com/spartacus06/zsmapbench +# +# Symbol: ZSMALLOC_PGTABLE_MAPPING [=n] +# Type : bool +# Defined at mm/Kconfig:708 +# Prompt: Use page table mapping to access object in zsmalloc +# Depends on: ZSMALLOC [=y]=y +# Location: +# -> Memory Management options +# -> Memory allocator for compressed pages (ZSMALLOC [=y]) +# +# +# +# CONFIG_ZSMALLOC_PGTABLE_MAPPING is not set |