Hi,
On 15/08/18 18:04, Bob Peterson wrote:
Hi,
Before this patch, function gfs2_rgrp_bh_get would only update the
rgrp info from the buffer if the GFS2_RDF_UPTODATE flag was clear.
This went back to the days when gfs2 kept rgrp version numbers, and
re-read the buffer_heads constantly, not just
Hi,
I am looking at gfs2 performance when there is Virtual Machine workload and
have some questions:
If we have a system where every host is writing sequentially, o_direct, 512k
at the time, 20 files or more each host, we can see very high CPU usage and lot
of contention on resource groups.
I
On 13 August 2018 at 19:45, Andreas Gruenbacher wrote:
> Hi,
>
> we've got 25 patches queued for this merge window, in the following
> areas:
>
> 1. Iomap support for buffered writes and for direct I/O.
> 2. Two patches that reduce the size of struct gfs2_inode.
> 3. Lots of fixes and cleanu
Hi,
On 16/08/18 13:56, Stefano Panella wrote:
Hi,
I am looking at gfs2 performance when there is Virtual Machine workload and
have some questions:
If we have a system where every host is writing sequentially, o_direct, 512k
at the time, 20 files or more each host, we can see very high CPU
Hi,
On 15/08/18 18:13, Bob Peterson wrote:
Hi,
Before this patch, gfs2_rgrp_bh_get would check for lvb mismatches,
but it wouldn't tell you what was actually wrong. This patch adds
more information to help us debug it. It also makes rgrp consistency
checks dump any bad rgrps, and the rgrp dump
Hi Steven,
Thanks for your reply,
unfortunately for us we need to wait a bit until we can take all the iomap
changes because we are still on a 4.4 kernel and to backport the iomap
framework would be huge.
Regarding fixing the application to do fallocate 16MBs at the time, the problem
is that
Hi,
On 16/08/18 16:05, Stefano Panella wrote:
Hi Steven,
Thanks for your reply,
unfortunately for us we need to wait a bit until we can take all the iomap
changes because we are still on a 4.4 kernel and to backport the iomap
framework would be huge.
Regarding fixing the application to do
