[jira] [Updated] (ARROW-15332) [C++] Add new cases and fix issues in IPC read/write benchmark

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-15332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-15332:
-----------------------------------
    Labels: pull-request-available  (was: )

> [C++] Add new cases and fix issues in IPC read/write benchmark
> --------------------------------------------------------------
>
>                 Key: ARROW-15332
>                 URL: https://issues.apache.org/jira/browse/ARROW-15332
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Weston Pace
>            Assignee: Weston Pace
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> This breaks out the benchmark changes in ARROW-14577 to allow us to more easily demonstrate the effect of the PR.
> First, there are a few problems with the current benchmark:
>  * The benchmark named ReadFile is misleading since it is actually reading from an in-memory buffer and no OS "read" call is ever issued.
>  * Renamed ReadTempFile to ReadCachedFile and added a second case for ReadUncachedFile.  The former reads a file in the OS' page cache and the latter forces a read to actually hit the disk.
>  * The TempFile benchmarks were not actually writing the correct amount of data and were reporting unrealistically high rates as a result.
>  * Adding a "partial read" parameter which, when true, only reads 1/8 the columns in the file so we can see the impact of pushdown projection.
>  * Slightly reduced the range of parameters to keep the benchmark time reasonable (8k columns wasn't telling us anything more than 4k columns).



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