swap on rbd volume

[Maciej Gałkiewicz <macias@xxxxxxxxxxxxxxx>]

Hello

Are there any known problems with using rbd volume as swap? I would like to create swap file on rbd volume with ext4 filesystem which has a parent rbd volume:

# rbd info volume-f3e2ba2d-be66-4090-8acf-edcfbe87eada

rbd image 'volume-f3e2ba2d-be66-4090-8acf-edcfbe87eada':

        size 8192 MB in 1024 objects

        order 23 (8192 KB objects)

        block_name_prefix: rbd_data.8747238e1f29

        format: 2

        features: layering

        parent: 373762ea-b64f-41c4-ae6e-3c32e20b8cbd@snap

        overlap: 4096 MB

Will it be much faster if swap was a separate volume instead of file in filesystem? 

regards

--
Maciej Gałkiewicz
Shelly Cloud Sp. z o. o., Sysadmin
http://shellycloud.com/, macias@xxxxxxxxxxxxxxx
KRS: 0000440358 REGON: 101504426

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