svchost.exe is the windows host process for system services. I have a new Dell Inspiron E1705 notebook computer (2GB RAM, Core 2 Duo Processor, internal Wi-Fi card). Two svchost processes are showing a rather odd pattern in processor useage. I set the affinity of both processes to Core1. The processor useage graph shows very regular peaks in the processor utilization of Core1. The processes seem to spike to 100% CPU for about 1 second every 10 seconds. They idle at (I'm pretty sure) less than 1%. I read on another forum that the 1 second/10 second spikes could be caused by 3rd party wifi drivers, but I can't find anything obvious. It is a new laptop after all, and I haven't installed any extra wifi drivers. Turning the card off does nothing. tasklist /SVC /FI "IMAGENAME eq svchost.exe" returns the following:
PIDs 900 and 1144 (in this instance) are the offending processes. Either of DcomLaunch and PlugPlay could be the problem; neither are stoppable for diagnostic purposes. Out of the other services, AudioEndpointBuilder, EMDMgmt, Netman, TrkWks, WdiSystemHost, Wlansvc, and WPDBusEnum were stopped to no effect. I could not stop wudfsvc. hidserv and UxSms were not stopped because they looked like they could affect the usability of the computer. Any ideas on what might be causing this odd behavior? Any possible solutions? This is only a problem because it uses 100% of my CPU. A workaround might be to write a script that identifies these processes and drops the priority to background, but I would rather not have to do that.
Image Name PID Services ========================= ======== =========================================== svchost.exe 900 DcomLaunch, PlugPlay svchost.exe 960 RpcSs svchost.exe 1112 Audiosrv, Dhcp, Eventlog, lmhosts, wscsvc svchost.exe 1144 AudioEndpointBuilder, EMDMgmt, hidserv, Netman, PcaSvc, SysMain, TrkWks, UxSms, WdiSystemHost, Wlansvc, WPDBusEnum, wudfsvc svchost.exe 1172 AeLookupSvc, Appinfo, BITS, Browser, EapHost, gpsvc, IKEEXT, iphlpsvc, LanmanServer, MMCSS, ProfSvc, RasMan, Schedule, seclogon, SENS, ShellHWDetection, Themes, Winmgmt, wuauserv svchost.exe 1380 EventSystem, fdPHost, FDResPub, LanmanWorkstation, netprofm, nsi, SSDPSRV, upnphost, W32Time, WebClient, WinHttpAutoProxySvc svchost.exe 1520 CryptSvc, Dnscache, KtmRm, NlaSvc, TapiSrv, TermService svchost.exe 1788 BFE, DPS, MpsSvc svchost.exe 2840 BthServ svchost.exe 4060 PolicyAgent svchost.exe 4872 stisvc svchost.exe 5440 WerSvc svchost.exe 956 swprv