[PATCH] test/py: Add a report show test durations

[Tom Rini]

On Fri, Jan 24, 2025 at 11:56:04AM -0700, Simon Glass wrote:

> Execution time varies widely with the existing tests. Provides a summary
> of the time taken for each test, along with a histogram.
> 
> Example:
> 
>    Duration : Number of tests
>    ======== : ========================================
>        <1ms :  1
>        <8ms :  1
>       <20ms : # 20
>       <30ms : ######## 127
>       <50ms : ######################################## 582
>       <75ms : ####### 102
>      <100ms : ## 39
>      <200ms : ##### 86
>      <300ms : # 29
>      <500ms : ## 42
>      <750ms : # 16
>       <1.0s : # 15
>       <2.0s : # 23
>       <3.0s :  13
>       <5.0s :  9
>       <7.5s :  1
>      <10.0s :  6
>      <20.0s :  12
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
> 
>  test/py/conftest.py | 77 +++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 77 insertions(+)

Whitespace issues aside, we should probably not do this every time, just
when requested.

-- 
Tom
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