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Effect of search encryption on performance

Updated on June 30, 2017

You can encrypt search communication to ensure that the data that is transferred across nodes cannot be accessed by unauthorized hosts. Encryption, however, affects search performance. The following performance testing results for search and incremental indexing can help you to assess the effect of encryption on performance.

System specifications

The system on which the tests were performed had the following specifications:

  • RAM: 96 GB
  • Operating system: Windows 64-bit
  • Processor: Intel Xeon CPU ES-2665 0 @ 2.4 GHz (2 processors)
  • Type: physical server
  • Java 1.7.0_49

The following security protocols were used for certificate generation:

  • TLS
  • Number of bits: 1024
  • RSA
  • Signature algorithm: SHA256WithRSA

Performance results for a substring search

The following table contains the performance measurements for a substring search. Concurrent users were simulated by using Apache JMeter.

Test

Average over 3 runs
without encryption

Average over 3 runs
with encryption
Overhead percentage
1 user, 50000 iterations37,320 ms49,633 ms32.99%
50 users, 600 iterations16,114 ms21,591 ms33.98%
100 users, 300 iterations11,185 ms14,826 ms32.52%

Performance results for incremental indexing

The following table contains the performance measurements for creating, updating, and resolving work objects. Concurrent users were simulated by using Apache JMeter.

Test

Average over 2 runs
without encryption

Average over 2 runs
with encryption
Overhead percentage
100 users, 100 iterations9,047 ms12,199 ms34.84%
20 users, 100 iterations5,314 ms6,853 ms28.96%
  • Previous topic Create a database index to improve performance of searches
  • Next topic Enable the UDF feature in JSP Lookup tag for best performance

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