-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/38102/#review99481
-----------------------------------------------------------

Ship it!


Thanks for your patience!


3rdparty/libprocess/3rdparty/stout/include/stout/uuid.hpp (line 33)
<https://reviews.apache.org/r/38102/#comment156359>

    Typically we name types with a capital in the first letter, like 
'Generator', but let's just remove the typedef here, it doesn't seem to be 
helping a lot?


- Ben Mahler


On Sept. 15, 2015, 9:39 a.m., Klaus Ma wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/38102/
> -----------------------------------------------------------
> 
> (Updated Sept. 15, 2015, 9:39 a.m.)
> 
> 
> Review request for mesos and Ben Mahler.
> 
> 
> Bugs: MESOS-3046
>     https://issues.apache.org/jira/browse/MESOS-3046
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> __Phenomenon:__
> Performance downgrade
> 
> __Root Cause:__
> stout's UUID abstraction is re-seeding the random generator during each call 
> to UUID::random(), which is really expensive.
> 
> __Solution:__
> Seeding the random generator only once per thread.
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/3rdparty/stout/include/stout/uuid.hpp e90dabb 
> 
> Diff: https://reviews.apache.org/r/38102/diff/
> 
> 
> Testing
> -------
> 
> make
> make check
> 
> 
> Thanks,
> 
> Klaus Ma
> 
>

Reply via email to