* ctrace.h (class CTrace): Remove submit function. Change it to Submit. Change Submit to private.
Add New private static function GetCurrentTime, to get current time record
by the last construction or destruction instance of class CTrace.
(CTrace::~CTrace): Change submit function to Submit.
(CTrace::CommonInit): Remove sleep calls. Originally the sleep call is
used to force the Linux kernel to update the wall clock, see
update_process_times & update_wall_time.
Now we use a global variable which record the last commit time,
and avoid any time falling before this variable.
(CTrace::GetCurrentTime): New Function definition.
(CTrace::Submit): Rename from submit. Avoid duration smaller than 1.
Update the new global variable.
* main.cpp (main): Remove the sleep that may cause failing to
detect bug.