tuxoko 43518d92fd 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

2015-11-19 16:02:47 -08:00

..

avl

Support parallel build trees (VPATH builds)

2015-07-17 13:42:51 -07:00

nvpair

Support parallel build trees (VPATH builds)

2015-07-17 13:42:51 -07:00

unicode

Support parallel build trees (VPATH builds)

2015-07-17 13:42:51 -07:00

zcommon

Fix uioskip crash when skip to end

2015-09-29 10:06:58 -07:00

zfs

Fix zfs_dirty_data_max overflow on 32-bit

2015-11-19 16:02:47 -08:00

zpios

Add large block support to zpios(1) benchmark

2015-09-22 09:13:20 -07:00

.gitignore

gitignore: anchor entries at their respective directory

2013-04-02 10:50:17 -07:00

Makefile.in

Support parallel build trees (VPATH builds)

2015-07-17 13:42:51 -07:00