XNVIEWMP SHARPEN HOW TO

When this happens, the time to retrieve a certain info from the database increases (sometimes a lot) because of 1) disk fragmentation - the disk head will need to jump from sector to sector to find the requested info and 2) pointer / page fragmentation: the program needs to jump from page to page in the disk cache maintained in memory (because of a -very- deep chain of pointers traversed frequently) in order to locate and retrieve the desired record / index bucket.

Keep the above terms in mind when you read the descriptions below.īecause of the way the operating system maintains disk storage, over time the MP database files can become fragmented into several pieces stored in different locations on the drive. So, Cataloged = Scanned + User Entered Information A Cataloged file is a Scanned file for which an user has added information (information = data with human meaning): color, rating, keywords/categories, tags/albums, user comments (& other human generated IPTC), etc.A Scanned file is the a file which is added to (entered into) the database by the (automatic) subsystem which builds the thumbnails and enters all the basic (meta)data about the said file: name, directory, EXIF, machine-generated IPTC etc.The options there are explained below.įirst, however, it is important to understand the notion of cataloged vs scanned In the main menu, go to Tools | Settings | Database and press the Optimize.

XNVIEWMP SHARPEN HOW TO

Periodically optimize your Database: See the next section for how to do this.

If you have a big image collection and lots of RAM memory, set the value at 100 - 200 MB or even more.

Increase the 'Memory usage for database engine' settings value (in the Tools | Settings | Database panel).

You can change the paths from the 'Other settings' pane.

Note> To change the location of your databases, navigate to Tools | Settings | Integration | Paths.

If you can, have the two databases themselves (xnview.db and thumbs.db) each on separate drives - this will speedup access.

Try to put the databases on a secondary (non-busy) drive (not the drive with the operating system on it).

Keep your databases - especially the Thumbs.db database - on SSDs rather than Hard Disks.

square).Īssure the best storage environment for your databases width ratio proportional to the shape of the thumb images you want (vertical vs. 10% or so) by adjusting the values in the Setup dialog, but keep the height vs. Next, reduce the resulting thumb dimensions a small amount (e.g. The dialog will capture the thumb size you formerly selected using the slider in the Browser. Then, go to Tools | Settings | Database and press Get thumbnail Size. Use the thumbs slider (in the Browser) to approximate the (normal) thumb size that works best for you, day-to-day. As a matter of policy, be willing to accept a slight 'fuzziness' in the appearance of your thumbnails. XnView MP can dynamically (and temporarily) resize the thumbs to fit which ever thumb size you select using the browser thumbnail sizer, but without changing the stored size.

reducing the amount of Input/Output Operations from/to database/disk, dramatically improving the speed.īe conservative with the size of the stored thumbnails.

keeping the thumbs database as small as is practical, hence enabling MP to keep much more of it in memory (which means quicker thumbs display).when correlated with issues related to page overflow) can be of huge importance to: This mean means that a typical 30% gain in compression from JPG to WebP (esp. WebP is a significantly better compression algorithm than JPEG and and can reduce the disk-space footprint of the database file that MP uses to quickly redisplay image thumbnails in the Browser.įrom a technical perspective, the stored size of each thumbnail bitmap can be quite close to the Operating System sector size (for example: 4K) and very close to XnView MP's DB page size (8K).

In the main menu, navigate to Tools | Settings | Database and choose Lossy - High quality (WebP) from the Compression drop-down. Here are some hints for making the most of this fine software. XnView MP provides (one of) the most scalable multimedia managers available today.

Xnviewmp sharpen