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Proxies Revival?
Hello again,
I’m having trouble working with anything over SD in revival. Until the files are loaded into RAM from the hard drive, the playback is just too slow to view HD footage in anything close to real-time. I was wondering if there is any way to work with smaller proxy files in revival. Since we are a small company that works with 8mm home movies, we have to have a very quick turn around because most of our clients could not afford to pay for anything that isn’t quick. Is it possible to use SD proxy files when working with HD material? -
4 Replies
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Hi,
I was wondering what type of storage you’re using. On the SuperMicro with internal storage configured (eight drives), you should get very good playback speed in SD. Are you running off the system disk? If so, system disk performance will be quite slow and not recommended.
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SD footage runs fine, it’s HD and higher that chugs along. I have the data stored on two 2TB SATA 72,000 drives. These drives are separate from the system drive.
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Definitely sounds like something to do with you drives. I’m running six internal SATA drives with a StorNext file system and it runs very well in HD.
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Two disks generally do not provide enough spread of the image to provide any great throughput. Having more disks scripped as a single volume will help. The StorNext file system will increase the throughput as well but probably not worth the cost for two disks. If these disks are using the local file system (like ext3), make sure you have the “Enable Direct I/O” box checked in the Revival configuration widget. This will help reduce system overhead during playback and processing.
The problem with proxies in this environment is they require reading the whole file which is the issue in the first place. Writing proxies after reading each change will compromise throughput as well.
Regards, Gary
Gary Adams
DaVinci Revival Product Manager
Blackmagic Design
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