Catalyst in snow leopard

[samsc]

I'm on tour and testing during down time. My last leg I didn't get as much testing time as I wanted.

I also have a slow SSD which I need to zero and defrag content on. With 100Gb of show content, that is going to take a while. Once I do that I can run tests.

I'll report more on results after the weekend.

Oh and Apple's brilliant idea of changing the Gamma was a bit annoying to correct.

defrag ssd?

isnt the access to every bit of data is the same time? irrespective of read position.

[Semillion]

Do not Defrag SSD. It will only wear down the flash memory!

http://www.tomshardware.co.uk/forum/...6283_14_0.html

It's not worth it...

[samsc]

Do not Defrag SSD. It will only wear down the flash memory!

http://www.tomshardware.co.uk/forum/...6283_14_0.html

It's not worth it...

i would agree with this -

but maybe todd has heard something else?

it says here :

OCZ also warns on their info page that “Solid State Drives DO NOT require defragmentation. It may decrease the lifespan of the drive.”

This is nothing to actually be overly concerned about as the theoretical re-write limits for each sector in a Solid State Drive are going to outlive the use of the drive. It is just that defragmenting (although not necessary) creates an excessive amount of write cycles on any drive. Solid State Drives are designed so that data is written evenly to all sectors – this is what the industry refers to as “Wear Leveling.” So feel free to fill your drive full of random data just so you can see how fast it defrags for kicks; you will not harm anything, but do not do it on a regular basis unless you want to lower the MTBF of the drive down to mechanical HDD standards.

http://www.tomshardware.co.uk/OCZ-AP...ews-30096.html

[ajmaudio]

Well to get back on topic my first test results on snow leapord:
late 2008 8 core mac pro
8800 gt
ocz ssd
cat 167

using 720p files.. all around 150mb in size snow leopard allows for 1-2 more layers to be run... total of 7

I would say that so far it is a verifiable improvement... will test LFG cards next week if nobody beats me to it.

[NevBull]

Thanks Anthony

[samsc]

Well to get back on topic my first test results on snow leapord:
late 2008 8 core mac pro
8800 gt
ocz ssd
cat 167

using 720p files.. all around 150mb in size snow leopard allows for 1-2 more layers to be run... total of 7

I would say that so far it is a verifiable improvement... will test LFG cards next week if nobody beats me to it.

and standard definition?

[ajmaudio]

I'll let ya know when I get a chance

[SourceChild]

I have a few things on my touring systems which have limited playback (locking to interlaced and exact frame rates). However, I am successfully running my backup machines on Snow Leopard.

I tried to crash things today. I caused six crashes by running FX generator on multiple servers from a lighting desk. Obviously something I would never do during a real show. Each of the crashes were on the Primary Leopard systems and never a single crash on the Snow Leopard backup machines.

Although I don't have many regular SD test files, I loaded some of the original HES stock and was able to run 13 layers without frame drop at locked 29.97fps. I haven't tested yet at 25fps and won't with this configuration.

I am back in my office on Monday and will use some of my test servers to produce better reports. I'll be testing on one each of 2007 Pro (Mtron &x1900), 2008 Pro (OCZ & 8800), and 2009 Pro (OCZ 4870). I might try a Quatro FX 5600 also to see if there's a difference. However this is trivial for most of our applications.