|Subject:||Re: CPU stress tests for LilyPond|
|Date:||Thu, 2 Dec 2021 02:55:40 +0100|
Hello Hans,I don't think this test can give reliable results for what we need to compare.With my processor (Intel Celeron N3350) it took 96 seconds to compile MSDN.lyBut my CPU is listed with score 287:---> (1712 / 287)From what I see, is it true that geekbench 5 is single core, but it intensively uses RAM and the test we need should not be focused on RAM. I would consider a Gzip compression test, instead.(note that it compares Apple M1 with Celeron J3455, which is NOT my CPU, but it should be very similar for single-core tests.)The result is 91 / 40 which is very similar to 96 seconds / 40 seconds (Jacque's test) . I don't know if this is a coincidence and please, if you all have more data, share it.On Tue, Nov 30, 2021 at 5:56 PM Hans Åberg <firstname.lastname@example.org> wrote:So, to illustrate the idea of using the benchmark at the list below, it might be the Mac mini (Late 2020) with single-core score 1712 and the other Macs of this year have a similar performance. It gives for the iMac 2008 used a single-core score 372 (depending on model), and it took 4–5 minutes to compile the same example. Then 1712/407 = 4.6, and dividing 4 minutes with that gives 53 seconds, and this ignores speedups in lilypond self, but it seems one can get a rough idea of performance this way.
> On 30 Nov 2021, at 16:36, Jacques Menu <email@example.com> wrote:
> Here is what I get for this 102 page score:
> jacquesmenu@macmini > time lilypond MSDM.ly
> GNU LilyPond 2.22.1
> ;;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0
> ;;; or pass the --no-auto-compile argument to disable.
> … … … …
> real 0m39.590s
> user 0m37.119s
> sys 0m2.285s
> jacquesmenu@macmini > ls -sal MSDM.*
> 8 -rw-------@ 1 jacquesmenu staff 2695 Nov 17 2016 MSDM.ly
> 88 -rw-r--r-- 1 jacquesmenu staff 42641 Nov 30 16:32 MSDM.mid
> 1888 -rw-r--r-- 1 jacquesmenu staff 963019 Nov 30 16:32 MSDM.pdf
> The machine is a Mac Mini M1, 8GB RAM, 256 GB disk.
>> Le 30 nov. 2021 à 15:28, Hans Åberg <firstname.lastname@example.org> a écrit :
>>> On 30 Nov 2021, at 14:26, Paolo Prete <email@example.com> wrote:
>>> I need to buy a new PC, more powerful than the one I own. The CPU and RAM must be chosen on the time required to produce LilyPond output. Are there any test sheets with different CPUs and the time they take to output a score that takes a long time to compile? In case this doesn't exist specifically for LilyPond, is there anything equivalent I can use?
>> There are general benchmarks, like those below, maybe the single core ones can be useful.
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