At 11/17/2016 04:30 AM, Hans van Kranenburg wrote:
In the last two days I've added the --blockgroup option to btrfs heatmap
to let it create pictures of block group internals.
Examples and more instructions are to be found in the README at:
https://github.com/knorrie/btrfs-heatmap/blob/master/README.md
To use the new functionality it needs a fairly recent python-btrfs for
the 'skinny' METADATA_ITEM_KEY to be present. Latest python-btrfs
release is v0.3, created yesterday.
Yay,
Wow, really cool!
I always dream about a visualizing tool to represent the chunk and
extent level of btrfs.
This should really save me from reading the boring dec numbers from
btrfs-debug-tree.
Although IMHO the full fs output is mixing extent and chunk level
together, which makes it a little hard to represent multi-device case,
it's still an awesome tool!
And considering the "show-block" tool in btrfs-progs is quite old,
I think if the tool get further polished it may have a chance get into
btrfs-progs.
Thanks,
Qu
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