dlRaw: memory requirement
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Hi folks,
there have been some complaints about the speed of dlRaw on computers with little memory and 1:1 pipe. So just a few words about the background. Since dlRaw has so many filters it takes a while to compute them all, so to speed this up the image is cached after every tab. With this the calculation has only to start at the beginning of the tab with the last changes. The drawback, this caching needs of course some memory, increasing with the size of the image and the preview. Now, if your computer has not enough free memory it starts swapping and then it gets really slow.
I've have done some rough tests how much memory dlRaw needs at the moment:
| Image | 1:4 pipe | 1:2 pipe | 1:1 pipe |
| 6 MP | 115 MB | 200 MB | 700 MB |
| 10 MP | 140 MB | 300 MB | 1100 MB |
| 14 MP | 175 MB | 420 MB | 1600 MB |
So, you should have at least this amount of memory free (!) when using dlRaw, otherwise it will get very slow because of swapping...
greets mike


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