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Re: Testing in AWS, EBS - Mailing list pgsql-performance

From Artem Tomyuk
Subject Re: Testing in AWS, EBS
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Msg-id CANYYVqJNFKFQKX46FkyJVVN-BgTLdk31SC7TGtbpB8DGkAbcRA@mail.gmail.com
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In response to Re: Testing in AWS, EBS  (Rayson Ho <raysonlogin@gmail.com>)
Responses Re: Testing in AWS, EBS  (Rayson Ho <raysonlogin@gmail.com>)
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Please look at the official doc.

"New EBS volumes receive their maximum performance the moment that they are available and do not require initialization (formerly known as pre-warming). However, storage blocks on volumes that were restored from snapshots must be initialized (pulled down from Amazon S3 and written to the volume) before you can access the block"

Quotation from:

2016-05-26 17:47 GMT+03:00 Rayson Ho <raysonlogin@gmail.com>:
On Thu, May 26, 2016 at 10:00 AM, Artem Tomyuk <admin@leboutique.com> wrote:

2016-05-26 16:50 GMT+03:00 Rayson Ho <raysonlogin@gmail.com>:
Amazon engineers said that EBS pre-warming is not needed anymore.

but still if you will skip this step you wont get much performance on ebs created from snapshot.


IIRC, that's not what Amazon engineers said. Is that from your personal experience, and if so, when did you do the test??

Rayson

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