Linux: likely & unlikely

In the Linux,
You can see the below code

if ( likely(x == 0) )
{
// code ...
}
or
if ( unlikely(x == 1) )
{
// code ...
}

#define likely(x) __builtin_expect((x),1)
#define unlikely(x) __builtin_expect((x),0)


As I know, its another expression is "Branch Prediction".
It is supported gcc 2.96 or later version.

likely/unlikely macros in the Linux kernel
http://stackoverflow.com/questions/109710/likely-unlikely-macros-in-the-linux-kernel

Kernel : likely/unlikely macros
http://kerneltrap.org/node/4705

from thunderbird to outlook express

Web Site

How to Export Mail from Thunderbird to Outlook Express and Other Email Programs

http://email.about.com/od/mozillathunderbirdtips/qt/et_export_to_oe.htm

Tools

IMAPSize

http://www.broobles.com/imapsize/

tbird2oe

http://download.cnet.com/Tbird2OE/3000-2369_4-10601979.html

Aid4Mail MBOX Converter (My Choice!)

http://www.aid4mail.com/mbox-converter.php

DIGITAL BY QUALCOMM

From the google, I got information,

Qualcomm has its own patent of CDMA technology.

Samsung - Digital by Qualcomm?

http://www.howardforums.com/showthread.php/5508-Samsung-Digital-by-Qualcomm

Linux: Current Frequency

How to read cpu frequency on android device
http://stackoverflow.com/questions/3021054/how-to-read-cpu-frequency-on-android-device

How to detect android cpu speed?
http://stackoverflow.com/questions/4875415/how-to-detect-android-cpu-speed

Linux: CPU scaling governor

Governors In the Linux Kernel

1 Performance

2 Powersave

3 Userspace

4 Ondemand

5 Conservative

6 Interactive

7 InteractiveX

CPU frequency and voltage scaling code in the Linux(TM) kernel

http://bonsai.googlecode.com/svn-history/r447/trunk/kernel-src/linux-2.6.32.9/Documentation/cpu-freq/governors.txt

CPU Frequency Governor

http://icarus21.tistory.com/entry/CPU-Frequency-Governor

# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

For all available scaling governors:

# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors

Check Available frequencies
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

To control CPU1 manually,
# echo 0 > /sys/devices/system/cpu/cpu1/online
# echo 1 > /sys/devices/system/cpu/cpu1/online


Update 6/28 2013
=============================================
CPU Governors
http://forum.xda-developers.com/showthread.php?t=1736168

Linux: DVFS & hotplug

Web:

- Linux kernel CPU Frequency 변경(DVFS) 코드

PDF:

- DVFS와 파워 게이팅의 결합 통한 절전 성능 향상

- 그린 데이터센터를 위한 전력 관리 기술

- DVFS and power-off controls on a multicore operating system by Renesas

How to debug in Release Mode in Visual C++ 6.0

Project > Setting > C/C++ tab menu

Debug Info: change from None to Program database

And, Project > Setting > Link

Check, Generate debug info