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Diffstat (limited to 'drivers/staging/zcache/Kconfig')
| -rw-r--r-- | drivers/staging/zcache/Kconfig | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig deleted file mode 100644 index 2d7b2da3b9e0..000000000000 --- a/drivers/staging/zcache/Kconfig +++ /dev/null @@ -1,59 +0,0 @@ -config ZCACHE - tristate "Dynamic compression of swap pages and clean pagecache pages" - depends on CRYPTO=y && SWAP=y && CLEANCACHE && FRONTSWAP - select CRYPTO_LZO - default n - help - Zcache doubles RAM efficiency while providing a significant - performance boosts on many workloads. Zcache uses - compression and an in-kernel implementation of transcendent - memory to store clean page cache pages and swap in RAM, - providing a noticeable reduction in disk I/O. - -config ZCACHE_DEBUG - bool "Enable debug statistics" - depends on DEBUG_FS && ZCACHE - default n - help - This is used to provide an debugfs directory with counters of - how zcache is doing. You probably want to set this to 'N'. - -config RAMSTER - tristate "Cross-machine RAM capacity sharing, aka peer-to-peer tmem" - depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE - depends on NET - # must ensure struct page is 8-byte aligned - select HAVE_ALIGNED_STRUCT_PAGE if !64BIT - default n - help - RAMster allows RAM on other machines in a cluster to be utilized - dynamically and symmetrically instead of swapping to a local swap - disk, thus improving performance on memory-constrained workloads - while minimizing total RAM across the cluster. RAMster, like - zcache2, compresses swap pages into local RAM, but then remotifies - the compressed pages to another node in the RAMster cluster. - -config RAMSTER_DEBUG - bool "Enable ramster debug statistics" - depends on DEBUG_FS && RAMSTER - default n - help - This is used to provide an debugfs directory with counters of - how ramster is doing. You probably want to set this to 'N'. - -# Depends on not-yet-upstreamed mm patches to export end_swap_bio_write and -# __add_to_swap_cache, and implement __swap_writepage (which is swap_writepage -# without the frontswap call. When these are in-tree, the dependency on -# BROKEN can be removed -config ZCACHE_WRITEBACK - bool "Allow compressed swap pages to be writtenback to swap disk" - depends on ZCACHE=y && BROKEN - default n - help - Zcache caches compressed swap pages (and other data) in RAM which - often improves performance by avoiding I/O's due to swapping. - In some workloads with very long-lived large processes, it can - instead reduce performance. Writeback decompresses zcache-compressed - pages (in LRU order) when under memory pressure and writes them to - the backing swap disk to ameliorate this problem. Policy driving - writeback is still under development. |