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Phoronix Test Suite

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Phoromatic Test Orchestration

Ubuntu 9.10 Home Encryption Performance

Michael Larabel

Published on 16 September 2009
Written by Michael Larabel
Page 2 of 3 - 5 Comments

While most will not be running a PostgreSQL server on a system with home directory encryption (especially from a netbook), but if anything full disk encryption for the drive, there is a huge performance hit. Without home encryption there were over 234 transactions per second, but when running from the encrypted home directory its performance was just over 10% that -- 24 TPS.

The number of transactions per second also dropped when running PostMark, but it was by a much smaller margin -- 15 vs. 11 TPS.

The random write performance via AIO-Stress had dropped from 2.18MB/s to 1.54MB/s under an encrypted home directory.

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