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Mickey Hovel
Mickey Hovel

Reputation: 1060

copy files on EC2 slowing down very fast

I'm running a simple test when i'm copying 6 GB of files from one directory to other. I'm doing this test on R4.4xlarge instance of AWS. The disk is 300 GIB and the IOPs are configured to 600 on the specific volume.

What i'm facing is very wierd, in the begining it start copying in rate of more than 600 MB/sec and after few seconds it slowing down dramatically to 20 MB /sec.

The volume type (file system type) is IO1, and the OS is windows

Any idea of what could cause this behaviour?

Upvotes: 2

Views: 1955

Answers (1)

mootmoot
mootmoot

Reputation: 13166

AWS storage topics is a beast. In short, i suggest you go through the following material.

Slide share : Deep Dive: Maximizing EC2 and EBS Performance

Youtube : Deep Dive: Maximizing EC2 and EBS Performance

Upvotes: 1

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