This patch tries to use the journal numbers to evenly distribute
which node prefers which resource group for block allocations. This
is to help performance.
---
fs/gfs2/incore.h | 1 +
fs/gfs2/rgrp.c | 66 +++-
2 files changed, 62
If we run out of blocks for a given multi-block allocation, we obviously
did not reserve enough. We should reserve more blocks for the next
reservation to reduce fragmentation. This patch increases the size hint
for reservations when they run out.
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fs/gfs2/rgrp.c | 3 +++
fs/gfs2/rgrp.h | 1 +
Hi,
This is a revised version of my patches to improve GFS2 performance and
reduce GFS2 fragmentation. As suggested by Steve Whitehouse, the first patch
has been modified to base its distribution of resource groups on the number
of journals.
Also as suggested, the patch that kept file close from
If an application does a sequence of (1) big write, (2) little write
we don't necessarily want to reset the size hint based on the smaller
size. The fact that they did any big writes implies they may do more,
and therefore we should try to allocate bigger block reservations, even
if the last few
