0Navigateur média LogoPeaufiner nouveau média performances du navigateur

L'année dernière, j'ai posté sur améliorer les performances des médias navigateur.  En fin de cette tentative a donné des résultats décevants. cependant, J'ai récemment fait des expériences avec divers moyens d'améliorer les performances que ma taille bibliothèque augmente.

  • The sql­ite per­form­ance of Media Browser is now notice­ably bet­ter than when it was first enabled and I was very pleased with the res­ults I got from enabling it with the new 2.2.8 Libération.
  • I will be exper­i­ment­ing with the res­ult of mov­ing the sql­ite data­base file onto the RAM Drive I already use for my WMP data­base and will update this post accord­ingly

The above changes have yiel­ded some bene­fits, but really I was in search of a bit more. Whilst bench­mark­ing a new USB Pen drive I checked the size of my media browser image cache and noticed that it had grown sub­stan­tially — to over 600 meg, with an aver­age image size of about 600k. Giv­en the typ­ic­al dis­play size of the images in ques­tion this seemed rather a lot and I wondered what else could be done. I remembered see­ing a post about redu­cing the image cache on TheHT­PC, which is one of the blog feeds I keep a half-eye on quite reg­u­larly and decided to dig the art­icle in ques­tion up. I was delighted to see that the author (un autre Jon) has tried vari­ous of the things I had already done, and had some excel­lent advice for redu­cing image size.

  • Recom­press all the JPEGs (in my case to 80%).  This saved over 350meg
  • Res­ize all the movie cov­er images (I fol­lowed the advice to use 600×400).  This saved an addi­tion­al 230meg.

I would like to echo Jon of TheHT­PC in endors­ing Fast­Stone Image View­er for the above oper­a­tions. It was free and easy to use.

  • I also decided to lim­it the num­ber of back­drops per movie to a max­im­um of 2. This saved an addi­tion­al (post com­pres­sion) 60meg. I con­sidered redu­cing the max­im­um to just 1, but this would only save an addi­tion­al 14mb — which I decided isn’t worth it for the moment.

In total I have reduced the num­ber of images by approx 250, and the total size by 640mb.

  • I also checked to see if any back­drops were lar­ger than 1920×1080 with the inten­tion of res­iz­ing any that were. Sadly (or sens­ibly) none were. But I was able to identi­fy 4 cor­rupt (1kb) back­drop files which I also removed.
  • I have also switched off “use inter­net pro­viders” in the Media Browser con­fig (inside media cen­ter, not the start menu con­fig util­ity) altho I don’t expect this to have any effect as I already have com­plete meta-data that I man­age with Médias Cen-ter Mas-ter

I still have 189mb of PNG’s and decided to try com­press­ing them fur­ther with PNGOUTWin, which I selec­ted based on a com­par­is­on of vari­ous png com­pres­sion toolsDes­pite the ori­gin­al com­par­is­on giv­ing PNGOUT rather unfa­vour­able per­form­ance in terms of time to com­plete, I found the win­dows ver­sion, which has been optim­ised for mul­ticore cpu’s, per­formed well, com­plet­ing most images in under 10 secondes, with an aver­age com­pres­sion to 94%. Extra­pol­ated to all my images this would save just 12mb. Sadly PNGOUTWin isn’t free, and I decided sav­ing 12mb just was­n’t worth pay­ing for.

Over­all I have now reduced the aver­age size of a file in my ImageCache folder to just under 220kb — only 37% the ori­gin­al aver­age. Once the entire cache is rebuilt I expect (and hope) this will res­ult in a new cache size of under 250mb, which should offer a very sub­stan­tial speed boost.

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