If you?re looking to give your Sprint Optimus S a speed boost, I?ve got a kernel for you, compiled from official LG source code, that adds overclocking and removes unneeded debugging features for a leaner, meaner kernel.
The basic idea behind this kernel build is ?stable performance? ? other devs are doing a great job backporting the latest features from the mainline Android kernel and writing experimental patches. My goal is a lot less ambitious, but also less bleeding-edge: Build a kernel from official source, one that ?just works? for me the user, but boost performance to get the most from the hardware.
I?ve also included the Linux TUN/TAP driver as a module, so that (among other things) you can use OpenVPN with your Optimus, if you like. Need some other module? Ask!
Features
Uses current (2.6.32.9 Linux kernel for Optimus S with VD baseband) LG source code for simplicity and maximum compatibility. See ?design goals,? below.
CPU frequency scaling beyond 600 MHz (i.e. overclocking). By default, I?ve upped the maximum clock speed to 748 MHz, but you can enable higher speeds (and test them) using trusty SetCPU. At 748 MHz, SetCPU benchmarks run 20% faster.
Removed a lot of unneeded debugging/development features, such as Ethernet, IPVS and highmem support, kernel debugging, debugfs etc. The end result is a kernel that?s 260K smaller than LG?s (2.3M vs. 2.6M).
Minor performance tweaks (TREE_PREEMPT_RCU etc.).
tun.ko compiled as a module, since I use it for OpenVPN. Future releases can include additional drivers as modules, if there?s interest.
Overclock Android kernel for Sprint Optimus S | lyncd.com
The basic idea behind this kernel build is ?stable performance? ? other devs are doing a great job backporting the latest features from the mainline Android kernel and writing experimental patches. My goal is a lot less ambitious, but also less bleeding-edge: Build a kernel from official source, one that ?just works? for me the user, but boost performance to get the most from the hardware.
I?ve also included the Linux TUN/TAP driver as a module, so that (among other things) you can use OpenVPN with your Optimus, if you like. Need some other module? Ask!
Features
Uses current (2.6.32.9 Linux kernel for Optimus S with VD baseband) LG source code for simplicity and maximum compatibility. See ?design goals,? below.
CPU frequency scaling beyond 600 MHz (i.e. overclocking). By default, I?ve upped the maximum clock speed to 748 MHz, but you can enable higher speeds (and test them) using trusty SetCPU. At 748 MHz, SetCPU benchmarks run 20% faster.
Removed a lot of unneeded debugging/development features, such as Ethernet, IPVS and highmem support, kernel debugging, debugfs etc. The end result is a kernel that?s 260K smaller than LG?s (2.3M vs. 2.6M).
Minor performance tweaks (TREE_PREEMPT_RCU etc.).
tun.ko compiled as a module, since I use it for OpenVPN. Future releases can include additional drivers as modules, if there?s interest.
Overclock Android kernel for Sprint Optimus S | lyncd.com
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