# Attachment\_fu Memory Use When Uploading

**URL:** <https://www.ruby-forum.com/t/attachment-fu-memory-use-when-uploading/103692>\
**Category:** Rails\
**Created:** [May 9, 2007, 10:52am UTC](https://www.ruby-forum.com/t/attachment-fu-memory-use-when-uploading/103692 "2007-05-09T10:52:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![starmaerker](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/e9bcb4/32.png) [@starmaerker](https://www.ruby-forum.com/u/starmaerker)\
**Post date:** [May 9, 2007, 10:52am UTC](https://www.ruby-forum.com/t/attachment-fu-memory-use-when-uploading/103692/1 "2007-05-09T10:52:59Z")

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Hello,

If I were to upload, say, a 250MB image using attachment\_fu without  
any resizing or image manipulation would I need 250MB of spare RAM to  
handle the upload?

I ask because I’m not sure whether attachment\_fu streams the data to  
its storage location as it arrives over HTTP or whether it builds the  
entire blob up in memory before writing it all in one go to the  
storage location.

Thanks and regards,  
Andy S.