Re: Mapped rbd is very slow

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Subject: Re: Mapped rbd is very slow
From: vitalif@xxxxxxxxxx
Date: Fri, 16 Aug 2019 21:34:11 +0300
Cc: ceph-users@xxxxxxx
In-reply-to: <f4fe8860510662c89f50e92f209f314a5e8b30d3.camel@nmlq.fr>
References: <d7354a02f38bc859ffdee181b60dbde3f085c317.camel@nmlq.fr> <CAD9yTbGzDHGt72XTXJsbrnD8JHXTPtHedb6CDgpShc8MNTiheQ@mail.gmail.com> <CAOi1vP8SU=BfzCVK07erdpGYkQOK5mGwZ0Rif5zKs6cMe1xFEw@mail.gmail.com> <4ae4b6b10b59bf5d76c4dd2774143aa0ae762cbc.camel@nmlq.fr> <op.z6k36ho10ncgu9@localhost> <8e4cbb85d65346cfb53230aa56b465ab91a0e460.camel@nmlq.fr> <f558f56bbe1894197f2d85d6b4a6dc75fdf1bace.camel@nmlq.fr> <0193716bc19547b8871fdd9a4c05220e@yourcmc.ru> <9ffbf850efe4eed44c59ecebc990225b4afe7ce4.camel@nmlq.fr> <1afb3e76dbd4f35806d157b894f33e95@yourcmc.ru> <f4fe8860510662c89f50e92f209f314a5e8b30d3.camel@nmlq.fr>
User-agent: Roundcube Webmail/1.2.3

And once more you're checking random I/O with 4 MB !!! block size.

Now recheck it with bs=4k.
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- Re: Mapped rbd is very slow
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- Re: Mapped rbd is very slow
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- Re: Mapped rbd is very slow
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- Re: Mapped rbd is very slow
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- Re: Mapped rbd is very slow
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- Re: Mapped rbd is very slow
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