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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Created: (STDCXX-928) [HP aCC 6.10] native library faster than stdcxx 4.2.1
Date Thu, 08 May 2008 23:22:55 GMT
[HP aCC 6.10] native library faster than stdcxx 4.2.1
-----------------------------------------------------

                 Key: STDCXX-928
                 URL: https://issues.apache.org/jira/browse/STDCXX-928
             Project: C++ Standard Library
          Issue Type: Improvement
          Components: 23. Containers, 25. Algorithms
    Affects Versions: 4.2.1
            Reporter: Martin Sebor
            Priority: Critical


When compiled with HP aCC 6.10 on HP-UX 11.23/IPF and stdcxx 4.2.1 the Stepanov and Stroustup's
[Standard Container Benchmark|http://www.stepanovpapers.com/container_benchmark.cpp] runs
with the following output.

||size||array||vector<T*>||vector<iterator>||deque||list||set||multiset||
|10|1.11|1.35|1.34|3.79|3.76|2.41|3.24|
|100|0.47|0.50|0.50|1.38|1.92|1.07|1.62|
|1000|0.45|0.48|0.47|1.25|1.56|0.82|1.17|
|10000|0.45|0.47|0.47|1.23|1.63|0.78|1.09|
|100000|0.50|0.51|0.51|1.41|3.65|1.29|2.36|
|1000000|0.56|0.58|0.58|1.51|7.08|3.60|4.62|

Total runtimes:
{noformat}
real    1m6.370s
user    1m5.920s
sys     0m0.130s
{noformat}

When compiled with the same compiler but the native C++ Standard Library the same benchmarks
runs with the output below. Note that in most cases the times in this table are better than
in the one above.

||size||array||vector<T*>||vector<iterator>||deque||list||set||multiset||
|10|1.06|1.11|1.12|4.00|3.49|2.35|3.05|
|100|0.46|0.47|0.47|1.38|1.80|0.98|1.51|
|1000|0.44|0.45|0.44|1.09|1.46|0.75|1.11|
|10000|0.42|0.43|0.43|0.97|1.54|0.73|1.02|
|100000|0.47|0.45|0.46|0.99|3.57|1.25|2.32|
|1000000|0.51|0.52|0.50|1.02|6.83|3.54|4.70|

Total runtimes:
{noformat}
real    1m3.320s
user    1m2.800s
sys     0m0.140s
{noformat}


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