[jira] Commented: (STDCXX-928) [HP aCC 6.10] native library faster than stdcxx 4.2.1

["Martin Sebor (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/STDCXX-928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12595425#action_12595425 ] 

Martin Sebor commented on STDCXX-928:
-------------------------------------

Similar results with aCC 6.14:
\\
{panel:title=aCC 6.14 +O2, HP-UX 11.31, 1.6GHz Itanium II, stdcxx 4.1.2 (12d build type)}
||size||array||vector<T*>||vector<iterator>||deque||list||set||multiset||
|10|0.74|0.86|0.86|2.58|2.71|1.78|2.46|
|100|0.39|0.42|0.43|1.12|1.58|0.92|1.40|
|1000|0.39|0.42|0.41|1.05|1.34|0.74|1.06|
|10000|0.39|0.41|0.41|1.05|1.40|0.71|0.98|
|100000|0.41|0.42|0.42|1.14|1.88|0.92|1.33|
|1000000|0.45|0.46|0.45|1.23|4.01|2.01|2.88|

Runtimes:
{noformat}
real    0m47.524s
user    0m47.210s
sys     0m0.140s
{noformat}
{panel}

and

{panel:title=aCC 6.14 -AA +O2 -mt, HP-UX 11.31, 1.6GHz Itanium II, libstd_v2 2.2.1}
||size||array||vector<T*>||vector<iterator>||deque||list||set||multiset||
|10|0.70|0.72|0.72|2.52|2.47|1.48|2.08|
|100|0.42|0.43|0.42|1.07|1.45|0.78|1.20|
|1000|0.38|0.39|0.38|0.88|1.24|0.64|0.92|
|10000|0.37|0.38|0.38|0.78|1.33|0.63|0.86|
|100000|0.38|0.38|0.38|0.74|1.87|0.79|1.19|
|1000000|0.41|0.40|0.40|0.80|4.14|1.89|2.77|

Runtimes:
{noformat}
real    0m43.061s
user    0m42.920s
sys     0m0.120s
{noformat}
{panel}


> [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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