Re: Current ULE state and plans (was Re: HMP scheduling on FreeBSD)

From: Mark Millard <marklmi_at_yahoo.com>
Date: Fri, 23 Jan 2026 16:46:07 UTC
On 1/23/26 07:50, Minsoo Choo wrote:
> On Friday, January 23rd, 2026 at 10:30 AM, David Chisnall <theraven@freebsd.org> wrote:
> 
>>
>>
>> On 22 Jan 2026, at 21:00, Minsoo Choo minsoochoo0122@proton.me wrote:
>>
>>> If we want real-world scenarios, phoronix test suite would be great.
>>
>>
>> The Phoronix test suite is probably not helpful for schedulers. It runs a bunch of things one at a time, whereas schedulers care about dividing a shared resource among different things. It does a small number of samples and doesn’t do anything sensible with statistics to try to give you a useful number. It is a legendarily bad benchmark suite.
>>
>> David
> 
> Doesn't come with stress-ng?
> 
> https://www.phoronix.com/review/freebsd-15-amd-epyc/4
> 
> It gives numbers on mixed scheduler, context switching, etc, although I have no idea if that numbers are reliable.
> 
> 

https://cgit.freebsd.org/ports/tree/benchmarks/stress-ng

Looks like here is no need for phoronix to be involved in order to use
stress-ng .

-- 
===
Mark Millard
marklmi at yahoo.com