[cfarm-users] Two physical RISC-V hosts available for testing

[Denis Ovsienko]

On Mon, 4 Jul 2022 10:30:00 +0200
Baptiste Jonglez via cfarm-users <cfarm-users at lists.tetaneutral.net>
wrote:

> Hi,
> 
> This is not yet an official announcement, but we have two RISC-V
> boards available in the farm [1]
> 
> gcc91: StarFive VisionFive V1 running Debian
> gcc92: Hifive Unmatched running Ubuntu 22.04

Hello list.

I did a few tests to see how this hardware performs in one of my use
cases (building and testing of a C project in 32 different variations).
Nezha D1, which is a smaller RISC-V board, takes between 4 hours and
5h30m to complete the job using 1 CPU core and populated ccache,
completely on tmpfs.

gcc91 with lesser use of tmpfs took 2h27m on 1 core and 2h12m on 2
cores.

gcc92 without tmpfs took 1h45m on 1 core and 1h33m on 2 cores.

So for this particular workload StarFive seems roughly 2 times and
Unmatched is roughly 3 times faster than D1.

-- 
    Denis Ovsienko