Anything doing a lot of user-mode to kernel-mode transitions is affected
the most. That's why i.e. IO intensive code suffers more than just
computations.
--
Mgr. Jiří Činčura
https://www.tabsoverspaces.com/
On Wed, Jan 10, 2018, at 17:47, Carlos H. Cantu wrote:
> I saw a performance comparison (using comercial benchmarks tools, not>
> specific for databases) and the most impact seems to be on Disk (even> SSD),
> followed by RAM and CPU. The only area that isn't impacted seems> to be GPU.
>
> []s
> Carlos
> http://www.firebirdnews.org
> FireBase - http://www.FireBase.com.br
>
> DY> 10.01.2018 18:43, Leyne, Sean пишет:
> >>
> >>> Tests are different, so results cannot be compared "as is".
> >>
> >> I appreciate that the tests are different, I was commenting on the
> >> relative performance impact.>
> DY> Slowdown mostly depends on % of syscalls. R/O vs R/W tests would
> DY> show> DY> different relative impact due to different lock contention. Big
> DY> page> DY> cache (thus less I/O calls, even if resolved by the filesystem
> DY> cache) vs> DY> small page cache - also different relative impact.
> Different
> DY> workloads -> DY> also different relative impact.
>
> DY> Dmitry
>
>
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