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https://issues.apache.org/jira/browse/DERBY-5503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150089#comment-13150089
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Rick Hillegas commented on DERBY-5503:
--------------------------------------
I ran the single record update test to get some sense of the performance loss
incurred by Derby encryption. Here are the average transactions/second I saw on
my machine using various configurations:
No encryption: 898 tx/s
Default encryption: 874 tx/s (~ 3% performance loss)
AES 256-bit encryption: 788 tx/s (~ 12% performance loss)
Here is more information on the experiments I ran. I would appreciate advice
about other experiments which I should run to get a handle on this question.
Thanks.
--------- NO ENCRYPTION -------
I ran the following experiment 10 times:
rm -rf db
java org.apache.derbyTesting.perf.clients.Runner \
-driver org.apache.derby.jdbc.EmbeddedDriver \
-url "jdbc:derby:db;create=true" \
-init \
-load sr_update \
-threads 1 \
This yielded the following figures for transactions/seconds:
941, 795, 913, 863, 922, 942, 905, 927, 875, 893
--------- DEFAULT ENCRYPTION -------
I ran the following experiment 10 times:
rm -rf db
java org.apache.derbyTesting.perf.clients.Runner \
-driver org.apache.derby.jdbc.EmbeddedDriver \
-url
"jdbc:derby:db;create=true;dataEncryption=true;encryptionKey=1234567890abcdef1234567890abcdef"
\
-init \
-load sr_update \
-threads 1 \
This yielded the following figures for transactions/seconds:
903, 928, 881, 881, 814, 792, 894, 909, 868, 873
--------- AES 256-BIT ENCRYPTION -------
I ran the following experiment 10 times:
rm -rf db
java org.apache.derbyTesting.perf.clients.Runner \
-driver org.apache.derby.jdbc.EmbeddedDriver \
-url
"jdbc:derby:db;create=true;dataEncryption=true;encryptionKeyLength=256;encryptionAlgorithm=AES/CBC/NoPadding;encryptionKey=1234567890abcdef1234567890abcdef"
\
-init \
-load sr_update \
-threads 1 \
This yielded the following figures for transactions/seconds:
819, 778, 821, 809, 760, 733, 834, 772, 791, 759
> Measure the performance degradation incurred by encrypting Derby databases
> --------------------------------------------------------------------------
>
> Key: DERBY-5503
> URL: https://issues.apache.org/jira/browse/DERBY-5503
> Project: Derby
> Issue Type: Task
> Components: Store
> Affects Versions: 10.9.0.0
> Reporter: Rick Hillegas
>
> It would be good to measure the performance degradation incurred by Derby's
> encryption.
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