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List:       cygwin-apps
Subject:    Re: Build machines
From:       ASSI via Cygwin-apps <cygwin-apps () cygwin ! com>
Date:       2024-05-11 14:15:35
Message-ID: 87r0e8ph88.fsf () Gerda ! invalid
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ASSI via Cygwin-apps writes:
> > I misremembered the code names.  The direct successor to the 7735HS
> > (Rembrandt Refresh) are the 7840HS / 7940HS (Phoenix-H at 8 cores and
> > upgraded to 4nm Zen4/RDNA3 and about 15% better performance per Watt);
> > the upcoming 16 core is the 7945HX (Dragon Range, 5nm Zen4/RDNA2).
> 
> The Phoenix mini PC are starting to appear right now, about 15%…20% more
> performance for about 150€…200€ higher price (about 40…50%) right now.
> Still waiting for Dragon Range, first teasers have popped up, so I think
> it'll be available before the end of the year.

I've finally got my hands on that Dragon Range mITX motherboard, paired
it with 96 GiB memory, 2×4TB NVMe and built it into a nice small
form-factor case.  I've decided to run it under Linux for now and
virtualize Windows via KVM.  Running the gcc compilation test as before,
but with a different version of gcc to be built and the objdump
improvements, so not directly comparable.  I'll see if and when I can
re-do the older tests with the current versions later.

   | Processor      | HW         | Core    | TDP |  Base | Turbo | aTurbo | \
L1i/L1d+L2 |    L3 |     Mem |  comp |  inst |  pack |  test |   tot |  |             \
|            |         | [W] | [MHz] | [MHz] |  [MHz] | [kiB]      | [MiB] | [GiB/s] \
| [min] | [min] | [min] | [min] | [min] |  \
|----------------+------------+---------+-----+-------+-------+--------+------------+-------+---------+-------+-------+-------+-------+-------|
  | Xeon E3-1276v3 | 1S/4C/8T   | Haswell |  84 |  3600 |  4000 |   3800 | 32/32+256  \
|     8 |    25.6 |   101 |    15 |     9 |   445 |   570 |  | EPYC 7252      | \
2S/16C/32T | Zen2    | 120 |  3100 |  3200 |   3200 | 32/32+512  |   128 |   170.6 |  \
123 |     9 |    10 |   200 |   342 |  | Ryzen 7735HS   | 1S/8C/16T  | Zen3+   |  54 \
|  3200 |  4750 |   3850 | 32/32+512  |    16 |    75.0 |    68 |    32 |     7 |   \
200 |   307 |  |----------------+------------+---------+-----+-------+-------+--------+------------+-------+---------+-------+-------+-------+-------+-------|
  | Ryzen 7845HX   | 1S/16C/32T | Zen4    |  75 |  3000 |  5200 |   4000 | 32/32+1024 \
|    64 |    81.2 |    43 |     2 |     4 |   122 |   171 |

Efficiency wise this (expectedly) doesn't quite reach the level of the
miniPC for low and medium load, hovering around 23W at idle under Linux
and 60W with the Windows VM started and idling, peaking at about 130W
under full load, which makes it slightly more efficient than two miniPC
for this scenario.  Virtualization seems to consume around two cores
with high filesystem activity, so maybe bare-metal via dual-boot would
help a bit.  I can't test direct hardware passthrough for disks at the
moment, which might also help.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

SD adaptations for KORG EX-800 and Poly-800MkII V0.9:
http://Synth.Stromeko.net/Downloads.html#KorgSDada


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