Logic Pro Multicore Benchmarktest !

[Neil Parfitt]

Test machine: Mac Pro 2x3.46 6core / 48GB Ram / 10.6.8 / 256 sample buffer @ 48k

I can get 141 of these running.. and that's only 3/4 of the machine as Logic can only see 16 of the 24 threads available. Honestly, it's not a realistic 'realworld' test whatsoever. The fact is, I can choke Logic with an Omnisphere and a few Kontakts depending on what's happening, yet I could load up 35 audio tracks and put 15 space-designers on each rail and it works..

At the end of the day, Logic's Multi-core handling is quite poor and inconsistent. It's really easy to pin a single thread while the other cores are doing nothing. Whatever happened to Grandcentral dispatch?



-Neil

[brandmarc]

Test Machine: Mac Pro 2009 2,26 Ghz 8 Core 24 gb ram SSD OSX 10.6.8 Logic: 9.1.7
i/o: 512
Buffer: mid
Threads: 16
Track Mute/Solo behaviour: CPU saving
Software Monitoring: off
ESX virtual memory: on

64 Bit: After Reeboot max 102, then after 1 Minute only 92, then after 10 Minutes only 90, then after 5 minutes only 82 stable
Cpu temp between 37 - 49 celsius (istat)

32 Bit: without reeboot: max 100, after a minute 97, after 5 minutes: 92 stable
Cpu temp between 42 - 51 celsius

no difference between usbpre2 audio or internal audio

Anyone suggestions what iam doing wrong? i thougt with my machine 115 Tracks would be possible.

i did an efi update to 2010 mac pro 5.1
but i do not think i this is the reason. i realised performance really slowed down over the years (i used osx 10.5.8) therefore i installed 10.6.8, logic and everything fresh on SSD!

also tried to shutdown second monitor.
with treads "automatic" is even worse, only about 60 tracks


trying now with my old osx 10.5.8 HDD and logic 9.1.5
(when i switch between threads automatic and 16 it takes MUCH more time then with the new ssd system)

starting with 88 tracks, after 3 minutes 80 tracks stable (not really, stops after 2 minutes)

so, how can i get better performance???
thanks in advance!

--------------------------------------------------------------------------------------------------------------------------------
Edit:
i cleanded the inside of my mac. heatsink of processor A (where memory 1,2,3,4 is) was much hotter than B.
There was really not much dust in there.

After cleaning i got folowing results:

64 bit: starting with about 10 loops with 109 tracks, then got nearly stable at 101 tracks
32 bit: starting with 3 loops at 106, then about 10 at 102 tracks, 30 loops at 96 tracks, stable with 92 tracks

better performance only for 64 bit

maybe i have to change thermal paste and check everything is screwed tight etc.

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2nd Edit:
set the fan speeds very high with smc fanspeed cpu temp between 26 - 29 celsius
got now 105 tracks stable with 64 bit only 2 loops or so with 109 tracks

[matt thomas]

Originally Posted by Firechild

Woohooo!

Just ordered a used 8 core 2.93 (on the above charts recommendation), and added 32 GB RAM and an SSD system drive, I'll probably get a velociraptor audio drive too (currently got a raptor).. Can't wait!

I'll be upgrading from the shortest intel MacPro on the graph, to the third longest

Funny thing though, with a computer, the good thing about having a fast one is that you don't notice it

And knowing my luck, the same thing will happen as when I bought my macbook, look out for new models next month!

matt

[The Beatsmith]

Originally Posted by matt thomas

Woohooo!

Just ordered a used 8 core 2.93 (on the above charts recommendation), and added 32 GB RAM and an SSD system drive, I'll probably get a velociraptor audio drive too (currently got a raptor).. Can't wait!

I'll be upgrading from the shortest intel MacPro on the graph, to the third longest

Funny thing though, with a computer, the good thing about having a fast one is that you don't notice it

And knowing my luck, the same thing will happen as when I bought my macbook, look out for new models next month!

matt

You've ordered an amazing machine, congrats!

[matt thomas]

Originally Posted by The Beatsmith

You've ordered an amazing machine, congrats!

Buggar, my computer failed testing before shipment, so the order had to be cancelled.

And now I've got 32 gb of RAM sitting here with nowhere to go

I'll keep looking for another one.

matt

[HitzHits]

Originally Posted by matt thomas

Buggar, my computer failed testing before shipment, so the order had to be cancelled.

And now I've got 32 gb of RAM sitting here with nowhere to go

I'll keep looking for another one.

matt

Hi Matt,

bummer regarding your mac. I'm in a similar situation holding out for a new mac killa toy. Still waiting though and see what's going to happen soon. So that's why I'm following this thread :-)

Checking the fb page I can see you are from Switzerland? Or lived there?

I'm a Swiss guy living in NJ, USA :-).

Dia huara Schwiizer sind überall....lol.

Best to you,
Oliver

[matt thomas]

Originally Posted by HitzHits

Hi Matt,

Checking the fb page I can see you are from Switzerland? Or lived there?

Actually I'm a New Zealander who's wife is Swiss, and I've lived there a while, although currently I'm in NZ



matt

[VengasUK]

Does anyone have any idea why the 2.0 quad inside the Macbook Pro will allow more tracks than the 2.0 quad inside the Mac Mini Server? Do we expect the Ivy Bridge 2.3 quad inside a Mac Mini to be slower than the Sandy Bridge 2.3 quad in the Macbook Pro when the time comes?

[tablatom]

Originally Posted by Kenton

Tempted as I was by the MacMini Server, I finally got a refurbished iMac 21" i7 2.8GHz instead.

72 tracks....

Very happy (considering my 5 year old 2.16GHz C2D MBP could only do 14 tracks with a following wind).

My partner's 2008 quad Mac Pro does 55-60.

Wow, thats a great score.
Have you put 16 gigs of ram in it?
I am thinking about getting the same 21.5 inch 2.8 imac.
How does it perform with regular Logic projects?