Author Topic: I don't think my Pixinsight is working as fast as it should. Please help!  (Read 2740 times)

Offline BirdrockImaging

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Hi all,

I was watching a few videos on line and was noticing how much faster everyone else's programs were working (on such things as integration, deconvolution, an TGVDenoise).

I ran a benchmark with the information given below. How does everyone have such low CPU times?

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The Official PixInsight Benchmark version 1.0
Copyright (C) 2014-2015 Pleiades Astrophoto. All Rights Reserved.
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Benchmark version ...... 1.00.08

CPU Identification
CPU vendor ............. AuthenticAMD
CPU model .............. AMD A10-7850K Radeon R7, 12 Compute Cores 4C+8G

System Information
Platform ............... Windows
Operating system ....... Microsoft Windows 10 Pro
Core version ........... PixInsight Core 01.08.05.1353 (x64)
Logical processors ..... 4
Total memory size ...... 14.945 GiB

Execution Times
Total time ............. 03:18.01
CPU time ............... 02:19.62
Swap time .............. 00:58.30
Swap transfer rate ..... 284.285 MiB/s

Performance Indices
Total performance ...... 2376
CPU performance ........ 2711
Swap performance ....... 1575

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Offline pfile

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  • PixInsight Jedi Grand Master
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i am using a comparable intel CPU (albeit overclocked to 4GHz) and i'm seeing half your execution times.

the only thing i can think of is that PI is not running enough threads against this CPU for some reason. can you look at the windows performance monitor tool while the benchmark is running and see if all the cpus/threads are running @ 100%?

rob

Offline BirdrockImaging

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Here is a photo of that screen. I guess I have 2 physical cores and 4 logical processors? I don't know exactly what that means.

But it looks like all 4 processes are maxed out. I know I could reduce to swap file speed if I were to get a SSD but I guess I will have to bight the bullet and get a new processor too?

Ugh, I want to use the more advanced process but it takes 15 minutes to run TGVDenoise and I dread debayering images.

Thanks for your help.

Offline pfile

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  • PixInsight Jedi Grand Master
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ok, this is i think normal then. my CPU has 4 physical cores with 2 threads each, so 8 threads total. yours has 2 physical cores with 2 threads each, so 4 threads total... and the performance is roughly 1/2 mine.

until Ryzen came out, AMD was pretty far behind intel performance wise, both single-threaded and multi-threaded. but the ryzen architecture is supposed to be pretty awesome.

rob

Offline OldSkyEyes

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The CPU looks inline with this score:
https://pixinsight.com/benchmark/benchmark-report.php?sn=4XIQMH687VBOB5S6H73296N87Z5971Y8

To make you feel better there are still many CPUs slower than yours (also intel)  ;)
https://pixinsight.com/benchmark/index.php?sort=cpu&os=windows


Offline BirdrockImaging

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I got a SSD today and it brought my swap time down to 35 seconds. I guess Santa will have to bring a new processor.

Thinking about the AMD Ryzen 7 1800X.

Offline OldSkyEyes

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An 1600 is probably the most speed improvement for the money. (about 3 times faster CPU)
Use the money you save to buy some more/better/faster DDR4 memory and you can most likely double your speed again in 2 years time with the same (new) PC with a new CPU.
If you want the 1800x then I would wait until the speed improvement (and price drop) from AMD begin next year.
You pay a premium for the best CPU (for now) on the AM4 platform.

The extra memory you can use for a ramdisk:
I got 6 seconds swap speed setup this way, see picture. (C: is my SSD in case there isn't enough space, without RAMDISK you should also put it 8 times in the list)