Hi, I thought I had built a system that would work for me but there seems to be a bottleneck. The problem is I cant work out what it it.
My first project is a mixture of Canon 550D DSLR footage and Panasonic AVCHD (from a prosuma handy-cam). The AVCHD footage sometimes seems to play OK but as soon as I try playing the DSLR footage memory usige shoots up and I loose sync (even for the AVCHD footage, if I try to play it after playing DSLR footage sync is out, I have to restart PP).
I have a i5 550 (its a 3G i5 and acording to performance tests at http://www.cpubenchmark.net/high_end_cpus.html outperforms some i7 such as i7 975 3.33GHz). I am playing at 1/4 rez, cpu spends most of its time below 25%. It seems go quite high sometimes when I start playing but goes down to 25% very quickly.
I am using a Seagate 3TB 7200 drive which shows > 90MB/s write and > 100 MB/s read. I have 8GB system memory. I have a Nvida 550 Ti GPU.
I am running on Mac. I did try installing the trial on Windows (same box) and sync seems to be better but it grinds to a halt fairly quickly and will not play (all my fast disks are formatted Mac so it may be disk speed that is causing the problem, its a little under 50MB/s).
So where is the bottleneck. Ime kind of surprised as I thought it was possible to edit DSLR footage (at 1/4 rez) without getting as top notch laptop, I guess I believed the hype (I am using a desktop).
In terms of the stuff I am editing its documentary/factual so generally it is straight cuts with a few dissolves and a few titles.
Are there any decent articles giving recomended and optimal system specifications, the ones I found on the Adobe site are very vage.
and all the articles in the FAQ section.
Your main problem appears to be a single disk, which is below minimum requirements. Your hardware specs are marginal for such source material and then running MAC OS does not help.
Thanks for that info. I think I need to get a couple of nw HDs, either in RAID 0 or so I can put media and PP generated stuff on different HDs. Cant find advice on what HD Make/model to get. I asume all 72000 are not the same. Also cant find any advice on requiered HD throughput. The 3TB Seagate Baracuda I have gives me over 110 MB/s using blackmagic sped test util, is this enough?
What I am perticularly curious about is the Mac thing. I did not realise Mac underperforms PC. I was thinking of maybe oging to PC, do you have any links whitch disuss this? How mutch is the dirrerence?
Also wqill more memory make mtch difference. My system is only using around 3/4 max. I have 8GB, will going to 16 make a nocible difference. My projects are not that complex (docuentery/factual).
Look here: PPBM5 Benchmark
There is only one non-comparable submission using a MAC, but it was clearly disappointing in performance (about 2 times slower than a similarly equipped PC). However, MAC tends to use MOV formats, while on the PC AVI is used, so this can influence results. One thing one can say is that threading support was pretty bad with MAC's but again, maybe things have changed with Mountain Lion, I simply do not know.
It appears however that MAC 's have more problems than Windows machines, just looking at the threads here on the forum. Now that may also be influenced by the technical expertise of MAC users, who historically could get by with simply plugging the machine into a wall outlet and get to work.
Maybe this article will give you an inkling of what disks to buy: Adobe Forums: Planning / building a new system. Part 1
Look under the tab 'Disks, PSU' and then hover to the 'Disks' topic.
Basically it boils down to:
Thanks for that. found some benchmarks on Toms Hardware @ http://www.tomshardware.com/charts/hdd-charts-2012/-04-Write-Throughpu t-Average-h2benchw-3.16,2904.html and they seem to rate the non XT Seagate Barracuda above the XT, I think these are the ones I will go for. I am going to put them in a RAID0 ensclsure, hopefully this will be OK.
Curious about SATA II vs III. Sata II is 3GB/s so even if it is actualy half that is way beyond what a single HD can deliver.
I have yet to find a worthwhile benchmark on Tom's site. Their tests are so far removed from what you need for video editing and their tests are very lob-sided. In addition they can not be replicated by others, so one may wonder about the validity of their tests. This comes as no surprise, since they are very much oriented towards budget gamers, not towards NLE pro's as shown by the content of vtheir forums.
Thanks for that. Had a look at benchmark link about and it did not help me choose a HD. Currently I am trying to choose between Samsung F3 and Seagate Baracuda. I have seen reports of Baracudas dying, I have a dead one and so does a friend. The F3 dos not seem as fast but would a RAID0 pair be OK for DSLR footage. I am planing on taking your advise and moveing to Windows but need to get new drives as currently most of my stuff is formated for Mac and has FCP 7 projects on them.
Reformatting your drives to NTFS will do the trick. That is not a reason to get new disks. Increasing the number of disks is a valid argument.
Seagate Barracuda gained a very lousy reputation with the 7200.11 series. They were a disaster. The 7200.12 series were somewhat better, the 7200.14 series may be better still, but Seagate reduced the warranty period to only 1 year. Not a good sign in my book. It is a clear sign that the company does not believe in the quality of its products.
Just my $ 0.02