egzthunder1 · Dec 23, 2010 at 12:00 am

Ext4 Speed Improvement for Nexus S

XDA member supercurio has been working on the Ext4 file system for a little while now, and you may remember that there are results out of that already for the Nexus S with this improved kernel. But what is this about? In essence, the use of a safe mount option would allow the device to perform certain internal tasks better without compromising data integrity or file system integrity if the system was to fail for some reason (crash).

There has been some benchmarking done for his work and it seems to get a significant boost after this option is enabled. The dev also states that the benchmark used (Quadrant), while not really crucial, it would yield interesting information for comparison purposes. The whole discussion is rather technical, but we thought it was still worth pointing it out as a reference. After all, some people may wonder why their Nexus S is running faster all of the sudden ;)

Hey everyone.

As I spend some time on studying Ext4 for the Galaxy S devices, working on Voodoo lagfix, and based on what I saw in mount logs it’s possible that the performances could be increased without altering data integrity nor filesystem integrity in case of crash.
On /data, noauto_da_alloc is not used.

This option activates a sort of Ext3 emulation mode, which force sync on write close without sync.

It also comes with a speed penalty for SQLite writes, and is unneccessary when hardware barriers are enabled.
Barriers allow usage of delayed allocations without risk. Delayed allocations are the key to performance for modern filesystems.

You can find more information in the original thread.

Want something published in the Portal? Contact any News Writer.


_________
Want something on the XDA Portal? Send us a tip!
Emil Kako · Mar 4, 2015 at 11:49 am · no comments

HTC One M8 Owners: Upgrade to the M9, or Skip?

While HTC's latest flagship brings many new features, the aesthetic design of the device remains largely untouched in comparison to its predecessor. Many Android enthusiasts throughout the community were expecting a large redesign of one of the most beautiful handsets ever released, but what we got is something more along the lines of an 'HTC One M8S". So this begs the question, is the M9 worth the upgrade if you already own the M8? Current HTC One M8 users chime in and let us know your thoughts.

DISCUSS
Aamir Siddiqui · Mar 4, 2015 at 11:02 am · 1 comment

NVIDIA SHIELD: The Tegra X1 Powered Android TV Box

At the annual Game Developers Conference being held in San Francisco, NVIDIA announced the latest addition to its collection of devices, the NVIDIA SHIELD. Powered by the Tegra X1 ARM SoC, the SHIELD is a set-top box running Android TV at its heart. But since it is a NVIDIA device, it does things beyond the simple streaming and gaming that is expected in this age. The SHIELD can locally run and stream 4K content to a capable TV. It is compatible with existing...

XDA NEWS
Jimmy McGee · Mar 4, 2015 at 06:00 am · no comments

Pixie Dust – XDA Game Time!

There are some excellent ‘AAA’ tier games by huge development houses that offer fun, and, most of the time, in-app purchases. There is no doubt that some of these games are great. However, at XDA we like to keep an eye on the little guy. Some of the more successful Android developers have started out as the little guy. Today we celebrate another simple game developed by an XDA member. XDA Senior Member Rolf Smit offers up a 2D sandbox...

XDA NEWS
Share This