I've found that MC is doing some caching tasks and eating up RAM behind the scenes when I have any AMA files linked in a project, regardless of whether those bins are open or not. So I try to remove them (delete AMA clips from bins) completely.
It's fairly trivial in most of our projects since I'm working from transcodes. From there, if I have to go back to the original media, it's usually in passing them on to a color grade, so they never have to go back to AMA. And on the occasion that we're doing up-res in MC, it's easy enough to re-AMA, move the transcodes offline, and relink sequences to the AMA.On Wed, Jul 29, 2015 at 3:31 AM, bigfish@pacbell.net [Avid-L2] <Avid-L2@yahoogroups.com> wrote:
You mention removing ama references. Would that be removing bins that contain the original ama linked clips that were transcoded to low rez DNX? Is just having a bin with ama clips in it enough to effect performance or does the bin have to be open to slow things down? Have you adopted an approach of having a different capture project to hold all the ama bins etc...?
---In Avid-L2@yahoogroups.com, <cutandcover@...> wrote :Performance with 10.8.5 and v8.3.1 is generally OK with the following
conditions:
- no AMA
- waveforms off
- hardware 'happy' (not interrupting)
Even then though, I get symptoms where I hit play, audio plays fine and
video skips and lags. Hit stop, then hit play again, and it's fine. Caching
of files seems to be what's happening to slow things down. Once the app has
'found' all the files in my sequence or viewer, then it catches up and
plays OK. So scrubbing quickly through a timeline is relatively annoying,
since it's a slow caching issue, and caching lots of files is bogging down
MC. Add in AMA and it's a bear, and then if you turn on waveforms, look
out. Molasses time.
I have seen this with all sorts of storage. Local SATA all the way to
EditShare RAID over 10G Fiber. I also think something has drastically
changed in the Mac OS implementation of AFP and file sharing in general
between Lion and later OS.
These are all guesses but they are results of having troubleshot over the
past 5 months. My only relative solutions are the above, or maybe find new
hardware. I'm hoping to move to new Mac Pro hardware some time next year,
so I'll revisit the major issues then. But for now, I'm dealing with it by
transcoding most if not all media to low res DNxHD if I can, and then
removing AMA references from the projects. I get fewer complaints with this
combination, for now.
On Mon, Jul 27, 2015 at 4:24 PM, Bruce Tovsky bruce@...
[Avid-L2] <Avid-L2@yahoogroups.com> wrote:
>[Non-text portions of this message have been removed]
>
> mark, how is your performance with the 10.8.5 / 8.3.1 combo? what graphics
> card are you running with it? i saw that some folks were trying that combo,
> thought it needed Mavericks and higher to work. i tried your trick of
> switching to software and back to the DX and that seemed to magically make
> things nice again. i NEVER would have gone there without your tip mark, so
> a beer awaits you at some point in the future…
>
>
> bogdan, here are two screenshots via BMDST:
> Avid VideoRAID ST:
>
> and the FibreJet:
> seemed about right to me.
>
> thanks guys!
> b
>
> On Jul 27, 2015, at 3:58 PM, Mark Spano cutandcover@... [Avid-L2] <
> Avid-L2@yahoogroups.com> wrote:
>
>
> Try one simple thing. Open project, then with the button on the timeline
> (next to the audio meters), turn OFF the Nitris DX hardware. Wait a few
> seconds and then turn it back on. Check performance.
>
> This is a solution I've come up with for some of the same symptoms with
> our fleet of Mac Pro / Nitris DX systems (now running 10.8.5 / 8.3.1) when
> the performance dives. I can see a hardware issue if I have a WFM hooked
> up, as the audio outputs randomly spike periodically with doing nothing.
> Turning the hardware off and on seems to re-hook the hardware and then
> performance comes back to normal.
>
> On Mon, Jul 27, 2015 at 3:54 PM, Bruce Tovsky bruce@...
> [Avid-L2] <Avid-L2@yahoogroups.com> wrote:
>
>>
>>
>> hi all
>> this one is stumping me: over the weekend my avid system (Nitris DX
>> running 7.0.4.3 on OS X 10.8.5 on a Mac Pro 3,1 early 2008 with 32GB
>> memory, NVIDIA GeForce 8800 GT, 500GB SSD boot drive) decided to act up in
>> a new and interesting way. with a very undemanding project (:30 sec spot,
>> 1080i, minimal layers) i'm getting stuttering, even just playing audio with
>> video turned off, and at any timeline resolution setting. red marks are
>> appearing at the top of the timeline. testing with another project has the
>> same result. i had recently installed the 7.0.4.4 patch, so i uninstalled
>> that and went back to 7.0.4.3 to no avail. repaired permissions, zapped the
>> PRAM, etc. my media resides on an Avid VideoRAID SR connected via SAS and a
>> Roarke RAID connected via fibre with FibreJet. this system has been running
>> relatively trouble-free for several years (with minor bumps along the way)
>> and yes, it is due for an overhaul once i make the myriad decisions on the
>> transition to the trash can. i've run out of ideas, and before i make my
>> service call i thought i'd see if there is something simple i've missed.
>> cheers
>> b
>>
>> bruce tovsky
>> www.skeletonhome.com
>>
>> "Sometimes the appropriate response to reality is to go insane."
>> Philip K. Dick
>>
>>
>>
>
>
>
>
>
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Posted by: Mark Spano <cutandcover@gmail.com>
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