A while back I was running into a similar issue with svchost taking up a lot of CPU resources and it turned out to be a bug in windows update (a race condition I think).
>From what I can gather, svchost is involved in a lot of network stack operations so you might want to use a tool like Wireshark to see if the CPU spike corresponds to network activity. --------------------------- Brian Weeden Technical Consultant Secure World Foundation <http://www.secureworldfoundtion.org> +1 (514) 466-2756 Canada +1 (202) 683-8534 US On Sat, Nov 22, 2008 at 2:31 PM, Bobby Heid <[EMAIL PROTECTED]> wrote: > Hey again, > > > > I am running Vista Business SP1 and for the past couple (could be longer) > of > months now have been having an intermittent issue with one of the svchost > processes on my system. > > > > What is happening is that my CPU jumps to about 48% utilization (I have HT > turned on, so it is probably really near 100%) for a period of time lasting > minutes to over ½ hour. Process explorer points out the svchost process > that hosts the DCOM Server Process Launcher (DCOMLaunch) and Plug and Play > (PlugPlay) processes. When looking at the threads in the svchost process, > there are usually two threads using all of the CPU, they are both > ntdll.dll!UserThreadStart. > > > > In doing some research last night, I came across three threads that talk > about this issue: > > 1) A thread that seems to have something to do with the sound devices > and an enhancements tab on the configuration where you can turn off > enhancements. But others in the thread, and myself, do not have the > enhancements tab. > > 2) A thread that talks about HP printer software, which I have, but > nothing seems to point at this software. > > 3) A thread talking about VMware virtual network adapters. Someone > stated this: "I figured out what the problem is: VMware virtual network > adaptors. The problem disappeared after disabling both of the virtual > adaptors." I am running VMware. While the high CPU usage was occurring > last night, I went everywhere I could think of and disabled VMware network > stuff, but nothing seemed to help. > > > > Has anyone run up against this and solved it? Any ideas? > > > > Thanks, > > Bobby > >
