Articles tagged ‘performance’

NOTE: This article does not teaches how to Jailbreak your iPhone nor how to install Cydia an its apps. There are plenty of info on that out there. Please do not insist.

NOTE: As pointed by Robert, the amount of I/O generated by the swapfile may greatly decrease the iPhone’s SSD lifetime since is designed to be more at rest.

After buying an iPhone 2G from a friend I just couldn’t resists and started hacking all that I could. Put on the latest firmware by the time (3.1.3) and Jailbroke it, put on Saurik‘s Cycorder via Cydia (apt^w repository) (also from Saurik) in order to gain movie recording ability but didn’t went any further than that.

Then, as I don’t have a 3G/EDGE plan on my carrier, I decided only to access internet over WiFI but even scrambling APN credentials my little buddy kept connecting to my carrier EDGE network (and thus spending my money on high taxes).

After reading a while I discovered that SBSSettings would give me the option to control EDGE status (enabled/disabled) instead of just jamming credentials (that were being ignored by the carrier anyway). Installed and it just worked like a charm…. BUT… I’ve noticed that my Spingboard page transitions became a little hangy and apps opening and closing started to take much longer than it usual. From SBSSettings pane, I constantly see my memory running out due to iPhone’s lack of memory and lots of apps in background struggling for resources.

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We are constantly trying to improve our web applications performance to gain speed, lower the load on the clusters and thus being able to attend to even more users but have you ever thought about how these improvements can aid Global Warming?

For years optimization techniques such as Caching in many levels (Disk/Memory), Compression, Clustering and other were developed to acheive greater performance.

Global Warming is there for years and is getting worse every year but it seems that movements under IT has begun in order to create greener solutions. Many hosts such as Dreamhost (which we’re proud of being our hosting company) have already started their effort in reducing or even neutralizing their Carbon Footprint and now developers can help on their side too.
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