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https://issues.apache.org/jira/browse/IGNITE-16451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17497340#comment-17497340
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Kirill Tkalenko commented on IGNITE-16451:
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Test results are on my laptop:
{noformat}
Benchmark Mode Cnt Score
Error Units
ArrayUtilsSelfTestBench.removeLongArr thrpt 10 2548787,955 ±
46298,368 ops/ms
ArrayUtilsSelfTestBench.removeLongArrNew thrpt 10 2622077,988 ±
38953,430 ops/ms
ArrayUtilsSelfTestBench.removeObjectArr thrpt 10 28247,399 ±
1100,879 ops/ms
ArrayUtilsSelfTestBench.removeObjectArrNew thrpt 10 2520448,097 ±
192707,083 ops/ms
ArrayUtilsSelfTestBench.removeLongArr avgt 10 ≈ 10⁻⁶
ms/op
ArrayUtilsSelfTestBench.removeLongArrNew avgt 10 ≈ 10⁻⁶
ms/op
ArrayUtilsSelfTestBench.removeObjectArr avgt 10 ≈ 10⁻⁴
ms/op
ArrayUtilsSelfTestBench.removeObjectArrNew avgt 10 ≈ 10⁻⁶
ms/op
ArrayUtilsSelfTestBench.removeLongArr sample 390485 ≈ 10⁻⁵
ms/op
ArrayUtilsSelfTestBench.removeLongNewArr sample 246693 ≈ 10⁻⁵
ms/op
ArrayUtilsSelfTestBench.removeObjectArr sample 248217 ≈ 10⁻⁴
ms/op
ArrayUtilsSelfTestBench.removeObjectArrNew sample 391491 ≈ 10⁻⁵
ms/op
ArrayUtilsSelfTestBench.removeLongArr ss 10 0,002 ±
0,001 ms/op
ArrayUtilsSelfTestBench.removeLongArrNew ss 10 0,003 ±
0,001 ms/op
ArrayUtilsSelfTestBench.removeObjectArr ss 10 0,004 ±
0,001 ms/op
ArrayUtilsSelfTestBench.removeObjectArrNew ss 10 0,004 ±
0,001 ms/op
{noformat}
> Try to optimize ArrayUtils#remove
> ---------------------------------
>
> Key: IGNITE-16451
> URL: https://issues.apache.org/jira/browse/IGNITE-16451
> Project: Ignite
> Issue Type: Improvement
> Reporter: Kirill Tkalenko
> Assignee: Kirill Tkalenko
> Priority: Minor
> Labels: ignite-3, tech-debt
> Fix For: 3.0.0-alpha5
>
>
> We can try to optimize and benchmark *ArrayUtils#remove(T[], int)* and
> *ArrayUtils#remove(long[], int)*, for example using *Arrays#copyOf* and
> *System#arraycopy*.
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