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Issue 9: Performance problems when using FileVault
1 person starred this issue and may be notified of changes. Back to list
Status:  Fixed
Owner:  ----
Closed:  Oct 2008
Cc:  yoav.yer...@gmail.com


 
Reported by jerem...@mac.com, Oct 22, 2008
What steps will reproduce the problem?
1. Configure a user with an encrypted home directory using FileVault
2. Install iTivo
3. Connect to a Tivo and attempt to download a show

Performance comparisons between a FileVault user and a non FileVault user show a performance 
hit of about 2x.

Further investigation shows that iTivo uses a few temporary files during the download and video 
conversion. These files are stored in ~/.TiVoDLPipe and ~/.TiVoDLPipe2. Putting these files in 
the user's home directory means that they are encrypted and decrypted during the whole 
process.

Moving the files to /tmp fixes this issue but creates a potential later issue of multiple users 
possibly running iTiVo at the same time and clobbering each other. I suggest uniquely generated 
file names per operation stored in /tmp.
Oct 27, 2008
Project Member #1 yoav.yer...@gmail.com
Ok, just checked in a code-change to place temp files in /tmp/iTiVo(blah)-username. 
The same user shouldn't be running multiple copies of the program, and the program
can only download one show at a time, so no conflicts should emerge.

  Should make it into the next release

Status: Fixed
Cc: yoav.yerushalmi
Labels: -Type-Defect -Priority-Medium Type-Enhancement Priority-High

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