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OpenZFS on Linux and FreeBSD
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tuxoko a3fcc7c48b Fix zfs_dirty_data_max overflow on 32-bit 
On 32 bit, the calculation of zfs_dirty_data_max from phymem will overflow,
causing it to be smaller than zfs_dirty_data_sync, and will cause txg being
delayed while no one write to disk. The end result is horrendous write speed.

On 4G ram 32-bit VM, before this patch, simple dd results in ~7MB/s. Now it
can reach speed on par with 64-bit VM.

Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3973
 		2015-12-23 17:29:35 -08:00
cmd Update arcstat.py to remove deprecated rmis reference. 2015-12-23 17:29:34 -08:00
config Skip GPL-only symbols test when cross-compiling 2015-12-23 17:29:34 -08:00
contrib Init script fixes 2015-09-29 15:27:14 -07:00
etc zfs-import: Perform verbatim import using cache file 2015-10-13 14:33:49 -07:00
include Add zap_prefetch() interface 2015-12-23 17:29:34 -08:00
lib Either _ILP32 or _LP64 must be defined 2015-12-23 17:29:34 -08:00
man Make zio_taskq_batch_pct user configurable 2015-12-23 17:29:34 -08:00
module Fix zfs_dirty_data_max overflow on 32-bit 2015-12-23 17:29:35 -08:00
rpm Prepare to tag zfs-0.6.5.3 2015-10-13 15:35:23 -07:00
scripts Use truncate instead of fallocate in ziltest.sh 2015-07-13 11:02:59 -07:00
udev Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
.gitignore Ignore *.{deb,rpm,tar.gz} files in the top directory. 2013-04-24 16:18:59 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
COPYRIGHT Update ZED copyright boilerplate 2015-05-11 15:07:00 -07:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
META Prepare to tag zfs-0.6.5.3 2015-10-13 15:35:23 -07:00
Makefile.am Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Move dracut directory to contrib 2015-07-09 13:59:37 -07:00
copy-builtin Fix --enable-linux-builtin 2015-12-23 17:29:34 -08:00
zfs-script-config.sh.in Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

Native ZFS for Linux!

ZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the Illumos community.

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.

Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org