[Sony Xperia P, U, Sola, Go] C00ldUdE8655:
This is a known LINUX Speed Tweak, and i found it on the epic 4g thread that was started by marcusant. So, i'm really just sharing the info with the Xperian community, but I truly think it is quite valuable info, and will likely work on any Android based device since as stated earlier it is a Linux tweak. This has only been tested on ICS, and JB, but I'm pretty sure results will be the same with our XPERIAs...

v2-Changelogs- Completely Rebuild+AROMA INSTALLER (beta)

-CPU Tweaks included

-System Tweaks

-Net Tweaks Updated

-& lots :laugh:More

This is what i did, and for those of you that want to add it yourself, just add this code...

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############################
# CPU tweaks #
############################

# Queue size modifications
sysctl -w net.core.optmem_max=20480;
sysctl -w net.unix.max_dgram_qlen=50;

# Net Core Settings
# Location: /proc/sys/net/core
sysctl -w net.core.wmem_max=524288;
sysctl -w net.core.rmem_max=524288;
sysctl -w net.core.rmem_default=256960;
sysctl -w net.core.wmem_default=256960;

############################
# VM & Filesystem tweaks #
############################
sysctl -w fs.lease-break-time=10;
sysctl -w fs.file-max=65536;
sysctl -w vm.overcommit_memory=1;
sysctl -w vm.min_free_order_shift=4;
sysctl -w vm.block_dump=0;
sysctl -w vm.oom_dump_tasks=1;
sysctl -w vm.page-cluster=3;

############################
# Net Speed tweaks #
############################

# UnderUtilized Networking Tweaks below as recommended by avgjoemomma (from XDA)
sysctl -w net.ipv4.tcp_congestion_control=cubic;

# Hardening the TCP/IP stack to SYN attacks
sysctl -w net.ipv4.tcp_syncookies=1;
sysctl -w net.ipv4.conf.all.rp_filter=1;
sysctl -w net.ipv4.conf.default.rp_filter=1;
sysctl -w net.ipv4.tcp_synack_retries=2;
sysctl -w net.ipv4.tcp_syn_retries=2;
sysctl -w net.ipv4.tcp_max_syn_backlog=1024;
sysctl -w net.ipv4.tcp_max_tw_buckets=16384;
sysctl -w net.ipv4.icmp_echo_ignore_all=1;
sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1;
sysctl -w net.ipv4.tcp_no_metrics_save=1;
sysctl -w net.ipv4.tcp_fin_timeout=15;
sysctl -w net.ipv4.tcp_keepalive_time=1800;
sysctl -w net.ipv4.ip_forward=0;
sysctl -w net.ipv4.tcp_moderate_rcvbuf=1;
sysctl -w net.ipv4.route.flush=1;
sysctl -w net.ipv4.udp_rmem_min=6144;
sysctl -w net.ipv4.udp_wmem_min=6144;
sysctl -w net.ipv4.tcp_rfc1337=1;
sysctl -w net.ipv4.ip_no_pmtu_disc=0;
sysctl -w net.ipv4.tcp_ecn=0;
sysctl -w net.ipv4.tcp_sack=1;
sysctl -w net.ipv4.tcp_fack=1;
[/FONT]

[/SIZE]

AND Lotz More

to a file sysctl.conf (you can use root explorer to make a **NEW** file, or whatever file manager tool you like) then using root explorer copy the file and navigate to /system/etc/ mount as r/w and rename the original sysctl.conf file to sysctl.conf.bak, then paste the one you originally copied (you can add the lines of code to the original file if you are using a edited one already). Then change ownership to root/root, and permissions to rw/r/r, then mount back to r/o, and exit root explorer, and reboot. If it works you should notice your browser opening pages faster, the market much faster, and of course speed test will be faster.

This is highly unlikely, but if this somehow breaks your device I am in no way responsible...

OR SIMPLY-

EXTRACT ZIP ON YOUR SD CARD MOVE sysctl.cfg TO system/etc WITH RW-R--R-- AND

REBOOT

ENJOY FASTESTTTTTTTT.......INTERNET SPEED:angel:

LIKED MY POST PRESS **THANKS**:laugh:​