add comment about perf on <2GB RAM.

George Melikov 2019-07-17 18:09:49 +03:00
parent 3d77027a9d
commit 175594a7c7
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@ -8,7 +8,7 @@
* [A 64-bit kernel is *strongly* encouraged.](https://github.com/zfsonlinux/zfs/wiki/FAQ#32-bit-vs-64-bit-systems)
* Installing on a drive which presents 4KiB logical sectors (a “4Kn” drive) only works with UEFI booting. This not unique to ZFS. [GRUB does not and will not work on 4Kn with legacy (BIOS) booting.](http://savannah.gnu.org/bugs/?46700)
Computers that have less than 2 GiB of memory run ZFS slowly. 4 GiB of memory is recommended for normal performance in basic workloads. If you wish to use deduplication, you will need [massive amounts of RAM](http://wiki.freebsd.org/ZFSTuningGuide#Deduplication). Enabling deduplication is a permanent change that cannot be easily reverted.
Computers that have less than 2 GiB of memory may run ZFS slowly due to small available space for ZFS cache. 4 GiB of memory is recommended for normal performance in basic workloads. If you wish to use deduplication, you will need [massive amounts of RAM](http://wiki.freebsd.org/ZFSTuningGuide#Deduplication). Enabling deduplication is a permanent change that cannot be easily reverted.
## Support