Best content in Web Performance

Are WebSockets faster than AJAX? ...with latency in mind? - Peterbe.com - 0 views

www.peterbe.com/...re-websockets-faster-than-ajax

ajax websockets

shared by Laurent Paoletti on 22 Apr 12 - No Cached

Laurent Paoletti on 22 Apr 12

The advantage with WebSockets (over AJAX) is basically that there's less HTTP overhead. Once the connection has been established, all future message passing is over a socket rather than new HTTP request/response calls. So, you'd assume that WebSockets can send and receive much more messages per unit time.

<div class="cArrow"> </div><div class="cContentInner">The advantage with WebSockets (over AJAX) is basically that there's less HTTP overhead. Once the connection has been established, all future message passing is over a socket rather than new HTTP request/response calls. So, you'd assume that WebSockets can send and receive much more messages per unit time.</div>

...

Cancel

PunyPNG - PNG Compression and Image Optimization - Gracepoint After Five - 2 views

www.punypng.com

png image optimization performance

shared by Mehdi Kabab on 19 Apr 12 - Cached

Mehdi Kabab on 19 Apr 12

PunyPNG first analyzes the content of your image and figures out the best image format to use.

<div class="cArrow"> </div><div class="cContentInner">PunyPNG first analyzes the content of your image and figures out the best image format to use.</div>

...

Cancel

Steve Souders on Web Performance Optimization [video] - 2 views

www.youtube.com/watch

Steve Souders performance

shared by Laurent Paoletti on 20 Apr 12 - No Cached

Laurent Paoletti on 20 Apr 12

Itw by M. Hendrickson Current state of the Performance and Operations market. Terms, semantics and DevOps, are we splitting hairs? What do performance people do on a daily basis? Do you need to tradeoff anything to get better performance? Are most websites acceptable when it comes to speed? Measuring slowness -- clarified and demystified Where do you find performance monitoring tools? How do you know if you have a fast enough web site? Does Mobile disrupt your quest for high performance? Does HTML5 add any more complexity challenges to high performance web sites? Wrap up and discussion of Velocity Conference

<div class="cArrow"> </div><div class="cContentInner">Itw by M. Hendrickson Current state of the Performance and Operations market. Terms, semantics and DevOps, are we splitting hairs? What do performance people do on a daily basis? Do you need to tradeoff anything to get better performance? Are most websites acceptable when it comes to speed? Measuring slowness -- clarified and demystified Where do you find performance monitoring tools? How do you know if you have a fast enough web site? Does Mobile disrupt your quest for high performance? Does HTML5 add any more complexity challenges to high performance web sites? Wrap up and discussion of Velocity Conference</div>

...

Cancel

\"Le Web Performance Improvement,\" French Style | Web Performance Monitoring and Optim... - 1 views

blog.catchpoint.com/...lemonde-perflif

performance

shared by Laurent Paoletti on 18 Apr 12 - No Cached

Laurent Paoletti on 18 Apr 12

A month ago, we wrote about how the Home Depot improved their web performance through a major "Perflift". Today, we want to congratulate "l'equipe" at Le Monde for improving their website. While The New York Times is the number one newspaper in US, Le Monde is the number one news source in France and for French speakers around the world.

<div class="cArrow"> </div><div class="cContentInner">A month ago, we wrote about how the Home Depot improved their web performance through a major "Perflift". Today, we want to congratulate "l'equipe" at Le Monde for improving their website. While The New York Times is the number one newspaper in US, Le Monde is the number one news source in France and for French speakers around the world.</div>

...

Cancel

mschrag/speedlimit - 0 views

github.com/speedlimit

web performance tools macosx leopard speed network testing

shared by Mehdi Kabab on 15 Apr 12 - No Cached

Mehdi Kabab on 15 Apr 12

Speedlimit is a Leopard preference pane for limiting your network bandwidth to one of a couple different speeds.

<div class="cArrow"> </div><div class="cContentInner">Speedlimit is a Leopard preference pane for limiting your network bandwidth to one of a couple different speeds.</div>

...

Cancel

Firefox & Page Load Speed - Part I | Blog of Metrics - 3 views

blog.mozilla.org/...firefox-page-load-speed-part-i

performance firefox

shared by Éric D. on 13 Apr 12 - No Cached

Trimage (lossless) image compressor - 8 views

trimage.org

performance image compression tools

shared by Mehdi Kabab on 17 Aug 10 - Cached

Oncle Tom on 17 Aug 10

Interface visuelle (GUI) permettant de compresser plusieurs images, PNG et JPG. Ce programme, utilisable également en CLI, se base sur optipng, advpng et jpegoptim.

<div class="cArrow"> </div><div class="cContentInner">Interface visuelle (GUI) permettant de compresser plusieurs images, PNG et JPG. Ce programme, utilisable également en CLI, se base sur optipng, advpng et jpegoptim.</div>

...

Cancel
...4 more comments...
Samuel Martin on 18 Aug 10

Outils peu convaincant. L'outil conserve toujours le fichier compressé même si ce dernier est supérieur en taille.

<div class="cArrow"> </div><div class="cContentInner">Outils peu convaincant. L'outil conserve toujours le fichier compressé même si ce dernier est supérieur en taille.</div>

...

Cancel
Oncle Tom on 18 Aug 10

Dommage :-/ ça automatise une partie du taf déjà.

<div class="cArrow"> </div><div class="cContentInner">Dommage :-/ ça automatise une partie du taf déjà.</div>

...

Cancel
Samuel Martin on 18 Aug 10

Mouai, Eric n'a probablement pas fait de test, mais de mon côté mieux vaut utiliser à la main les outils "optipng, pngout, deflopt avec options" on obtient de bien meilleurs résultats. L'intérêt de l'outil réside dans l'interface à la limite

<div class="cArrow"> </div><div class="cContentInner">Mouai, Eric n'a probablement pas fait de test, mais de mon côté mieux vaut utiliser à la main les outils "optipng, pngout, deflopt avec options" on obtient de bien meilleurs résultats. L'intérêt de l'outil réside dans l'interface à la limite</div>

...

Cancel
Éric D. on 18 Aug 10

Non, je n'ai pas fait de test. Par contre j'ai vu que la correction du bug soulevé par Samuel est prévue. Après attention, on peut toujours obtenir de meilleurs résultats à la main avec ce genre d'outils, mais parfois au prix d'un temps cpu démesuré. Le propre de ces outils c'est de choisir des valeurs raisonnables et optimale pour le compromis efficacité/temps. Pour moi l'intérêt c'est surtout que c'est "déjà fait", donc pas besoin de chercher les bons paramètres pour le compromis optimal, de faire appel à image magik pour savoir quel outil utiliser en fonction du format et du nombre de couleurs, et de scripter tout ça soi même : c'est déjà fait. J'apprécie aussi qu'ils aient prévu une gui *et* une cli pour le même outil. C'est assez sympa.

<div class="cArrow"> </div><div class="cContentInner">Non, je n'ai pas fait de test. Par contre j'ai vu que la correction du bug soulevé par Samuel est prévue. Après attention, on peut toujours obtenir de meilleurs résultats à la main avec ce genre d'outils, mais parfois au prix d'un temps cpu démesuré. Le propre de ces outils c'est de choisir des valeurs raisonnables et optimale pour le compromis efficacité/temps. Pour moi l'intérêt c'est surtout que c'est "déjà fait", donc pas besoin de chercher les bons paramètres pour le compromis optimal, de faire appel à image magik pour savoir quel outil utiliser en fonction du format et du nombre de couleurs, et de scripter tout ça soi même : c'est déjà fait. J'apprécie aussi qu'ils aient prévu une gui *et* une cli pour le même outil. C'est assez sympa.</div>

...

Cancel
Vincent Voyer on 31 Aug 10

Il y a aussi http://phpied.com/files/yuicd/ a suivre, déjà essayé pour recompresser rapidement des png et le résultat est très bon à chaque fois.

<div class="cArrow"> </div><div class="cContentInner">Il y a aussi <a href="http://phpied.com/files/yuicd/" rel="nofollow" target="_blank">http://phpied.com/files/yuicd/</a> a suivre, déjà essayé pour recompresser rapidement des png et le résultat est très bon à chaque fois.</div>

...

Cancel
Mehdi Kabab on 12 Apr 12

A cross-platform tool for losslessly optimizing PNG and JPG files. Inspired by ImageOptim.

<div class="cArrow"> </div><div class="cContentInner">A cross-platform tool for losslessly optimizing PNG and JPG files. Inspired by ImageOptim.</div>

...

Cancel

Media Query & Asset Downloading Results | TimKadlec.com - 1 views

timkadlec.com/...uery-asset-downloading-results

performance media queries responsive design mobile css3 test

shared by Mehdi Kabab on 11 Apr 12 - No Cached

anonymous on 11 Apr 12

"I did some research about how images are downloaded when media queries are involved. I wrote up some automated tests where Javascript could determine whether or not the image was requested. I've got enough data now to be able to go into detailed findings."

<div class="cArrow"> </div><div class="cContentInner">"I did some research about how images are downloaded when media queries are involved. I wrote up some automated tests where Javascript could determine whether or not the image was requested. I've got enough data now to be able to go into detailed findings."</div>

...

Cancel

The 7 Deadly Mistakes That Make Websites Slow [Infographic] | Web Performance Optimization - 3 views

blog.yottaa.com/...make-websites-slow-infographic

performance infographics

shared by Laurent Paoletti on 09 Apr 12 - No Cached

Laurent Paoletti on 09 Apr 12

The 7 Deadly Mistakes That Make Websites Slow [Infographic] There are several common mistakes people make that slow down their website. Are you making any of them? See the mistakes below (and how you can fix them if you are making them!)

<div class="cArrow"> </div><div class="cContentInner">The 7 Deadly Mistakes That Make Websites Slow [Infographic] There are several common mistakes people make that slow down their website. Are you making any of them? See the mistakes below (and how you can fix them if you are making them!)</div>

...

Cancel

Cedexis | Radar Demo - 2 views

www.cedexis.com/...speedtest.html

web performance testing cdn

shared by Mehdi Kabab on 09 Apr 12 - No Cached

Mehdi Kabab on 09 Apr 12

Découvrez quel est le meilleur CDN ou Cloud depuis votre localisation.

<div class="cArrow"> </div><div class="cContentInner">Découvrez quel est le meilleur CDN ou Cloud depuis votre localisation.</div>

...

Cancel

Which Browsers are the Fastest? - 1 views

blog.newrelic.com/...fastest-browsers

performance browsers

shared by Laurent Paoletti on 06 Apr 12 - No Cached

Laurent Paoletti on 06 Apr 12

We've come quite a long way since introducing RUM about a year ago. Being the first app performance company to build real user monitoring as a core, native feature of application performance management, we are currently monitoring about 750 million page views a day, 5 billion a week and 20 billion a month for 20,000 active accounts.

<div class="cArrow"> </div><div class="cContentInner">We've come quite a long way since introducing RUM about a year ago. Being the first app performance company to build real user monitoring as a core, native feature of application performance management, we are currently monitoring about 750 million page views a day, 5 billion a week and 20 billion a month for 20,000 active accounts.</div>

...

Cancel

Why node.js streams are awesome - 4 views

blog.dump.ly/...hy-node-js-streams-are-awesome

webdev backend ux stream io nodejs performance

shared by Oncle Tom on 05 Apr 12 - No Cached

Oncle Tom on 05 Apr 12

Où comment la manière de servir des fichiers change l'expérience utilisateur. Quand la mécanique influe sur l'aspect pratique.

<div class="cArrow"> </div><div class="cContentInner">Où comment la manière de servir des fichiers change l'expérience utilisateur. Quand la mécanique influe sur l'aspect pratique.</div>

...

Cancel
Julien Wajsberg on 05 Apr 12

Intéressant mais rien de vraiment nouveau... les Streams, ça existe depuis Java 1.0 (1996), et sans doute avant dans d'autres langages. Tant mieux si ça arrive dans node.js !

<div class="cArrow"> </div><div class="cContentInner">Intéressant mais rien de vraiment nouveau... les Streams, ça existe depuis Java 1.0 (1996), et sans doute avant dans d'autres langages. Tant mieux si ça arrive dans node.js !</div>

...

Cancel

Why Minify JavaScript? | Engineered Web - 2 views

engineeredweb.com/...why-minify-javascript

performance javascript

shared by Laurent Paoletti on 31 Mar 12 - No Cached

Laurent Paoletti on 31 Mar 12

When I was at DrupalCon Denver I suggested that all production JavaScript should be minified. This seemed like something simple that I wouldn't get any push back on. After all, the major JavaScript packages do it and the performance recommendation tools all recommend it. I was wrong.

<div class="cArrow"> </div><div class="cContentInner">When I was at DrupalCon Denver I suggested that all production JavaScript should be minified. This seemed like something simple that I wouldn't get any push back on. After all, the major JavaScript packages do it and the performance recommendation tools all recommend it. I was wrong.</div>

...

Cancel

Speed and Mobility: An Approach for HTTP 2.0 to Make Mobile Apps and the Web Faster - I... - 0 views

blogs.msdn.com/...e-apps-and-the-web-faster.aspx

shared by Laurent Paoletti on 28 Mar 12 - No Cached

Laurent Paoletti on 28 Mar 12

This week begins face to face meetings at the IETF on how to approach HTTP 2.0 and improve the Internet. How the industry moves forward together on the next version of HTTP - how every application and service on the web communicates today - can positively impact user experience, operational and environmental costs, and even the battery life of the devices you carry around.

<div class="cArrow"> </div><div class="cContentInner">This week begins face to face meetings at the IETF on how to approach HTTP 2.0 and improve the Internet. How the industry moves forward together on the next version of HTTP - how every application and service on the web communicates today - can positively impact user experience, operational and environmental costs, and even the battery life of the devices you carry around.</div>

...

Cancel

Comparatif web performance des candidats 2012 - les images - Creaone.fr - 2 views

blog.creaone.fr/...ance-des-candidats-2012-images

comparatif web performance

shared by Samuel Martin on 28 Mar 12 - No Cached

Samuel Martin on 28 Mar 12

ImagePicker et ImageOptim sont présentés ; pour récupérer et optimiser les images.

<div class="cArrow"> </div><div class="cContentInner">ImagePicker et ImageOptim sont présentés ; pour récupérer et optimiser les images.</div>

...

Cancel

Comparatif web performance des candidats 2012 - Prélude - Creaone.fr - 0 views

blog.creaone.fr/...nce-des-candidats-2012-prelude

comparatif web performance

shared by Samuel Martin on 28 Mar 12 - No Cached

Cache compressed? or uncompressed? | High Performance Web Sites - 1 views

www.stevesouders.com/...che-compressed-or-uncompressed

Steve Souders performance cache

shared by Laurent Paoletti on 28 Mar 12 - No Cached

Laurent Paoletti on 28 Mar 12

My previous blog post, Cache them if you can, suggests that current cache sizes are too small - especially on mobile. Given this concern about cache size a relevant question is: If a response is compressed, does the browser save it compressed or uncompressed? Compression typically reduces responses by 70%.

<div class="cArrow"> </div><div class="cContentInner">My previous blog post, Cache them if you can, suggests that current cache sizes are too small - especially on mobile. Given this concern about cache size a relevant question is: If a response is compressed, does the browser save it compressed or uncompressed? Compression typically reduces responses by 70%.</div>

...

Cancel