Re: CPU load 100% threading issue

From:

"Tom Serface" <tom.nospam@camaswood.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 21 Jun 2007 07:29:17 -0700

Message-ID:

<BA744830-F6C7-42DA-B77F-97CCEC70D739@microsoft.com>

Hi Anu,

I agree with David. I don't see anything here that would take any time.
Also, if you are using a thread why are you calling SetTimer() and
KillTimer()?

I think you may be mixing metaphors. If this code is, indeed, not in a
thread doing the sleep will not reduce the use of the CPU and certainly
sleeping for 1 millisecond is going to reduce it much. Maybe you could post
more of the code???

Tom

"Anu" <anu.mishra@gmail.com> wrote in message
news:1182410523.560395.236040@n15g2000prd.googlegroups.com...

We use timer thread in our code, for monitoring Directories and doing
some file management operations. the application is a Namespace
extension.
When it is run on Dual core or Dual processor systems everything seems
to work fine, but when is run on normal processor systems, CPU
utilization is going high. (after working some time CPU utilization
becomes 100%, this is shared between Explore.exe and CSRSS.exe)

snapshot of our code:

g_Inst.m_ptrTimer=SetTimer(NULL,0,1000,TimerProc);
MSG msg;
while(GetMessage(&msg,NULL,0,0) >0)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
// I have added the below line after going through some articles on
CPU uitilization....this also didn't help at
::Sleep(1);
}

KillTimer(NULL,g_Inst.m_ptrTimer);
---------
Any help/inputs for this is highly appreciated.
Regards,
Anu