ActiveSync takes 9% CPU?

microsoft.public.pocketpc.activesync - MS ActiveSync software for your PDA discussed here 

Subject Author Date ActiveSync takes 9% CPU? Terry Pinnell 10-09-2005  Re: ActiveSync takes 9% CPU? Clinton Fitch, ... 10-09-2005  Re: ActiveSync takes 9% CPU? V Green 10-09-2005  Re: ActiveSync takes 9% CPU? Chris De Herrer... 10-09-2005  Re: ActiveSync takes 9% CPU? Terry Pinnell 10-09-2005  Re: ActiveSync takes 9% CPU? V Green 10-09-2005  Re: ActiveSync takes 9% CPU? Beverly Howard ... 10-09-2005  Re: ActiveSync takes 9% CPU? teecee1945-forums 10-10-2005  Re: ActiveSync takes 9% CPU? Chris De Herrer... 10-10-2005  Re: ActiveSync takes 9% CPU? Terry Pinnell 10-10-2005  Re: ActiveSync takes 9% CPU? Terry Pinnell 10-10-2005  Re: ActiveSync takes 9% CPU? Beverly Howard ... 10-10-2005  Re: ActiveSync takes 9% CPU? Andy Mulhearn 10-09-2005  Re: ActiveSync takes 9% CPU? Alan 10-09-2005  Re: ActiveSync takes 9% CPU? Tony A. 10-09-2005

Posted by Terry Pinnell on October 9, 2005, 11:31 am Please log in for more thread options Here, it seems that the process wcescomm.exe accounts for about 9% of my CPU usage when I'm 'doing nothing' on my WinXP SP1 PC. That's consistent over many observations. There are lots of other processes running, but Task Manager shows zero for them in the CPU column. And reinforcing that, if I run Filemon, a high proportion of the entries are like these: wcescomm.exe:1912 QUERY INFORMATION wcescomm.exe:1912 CLOSE wcescomm.exe:1912 OPEN wcescomm.exe:1912 READ Is that 9% typical for other users with their PPC cradled under XP please? Seems a heck of a lot to me... -- Terry, West Sussex, UK Using iPAQ 2210 with WM2003. Posted by Clinton Fitch, Clinton Fitch \ on October 9, 2005, 8:44 am Please log in for more thread options Terry, On my Pentium IV 2.0GHz running WindowsXP Pro, I run right at 9% as well. Regards, -- Clinton Fitch Senior Editor / Owner Clinton Fitch (Dot) Com! http://www.clintonfitch.com A Pocket PC Magazine "Best Site" for Pocket PC Reviews! show/hide quoted text > Here, it seems that the process wcescomm.exe accounts for about 9% of > my CPU usage when I'm 'doing nothing' on my WinXP SP1 PC. That's > consistent over many observations. There are lots of other processes > running, but Task Manager shows zero for them in the CPU column. And > reinforcing that, if I run Filemon, a high proportion of the entries > are like these: > wcescomm.exe:1912 QUERY INFORMATION > wcescomm.exe:1912 CLOSE > wcescomm.exe:1912 OPEN > wcescomm.exe:1912 READ > Is that 9% typical for other users with their PPC cradled under XP > please? Seems a heck of a lot to me... > -- > Terry, West Sussex, UK > Using iPAQ 2210 with WM2003. Posted by V Green on October 9, 2005, 9:33 am Please log in for more thread options show/hide quoted text > Here, it seems that the process wcescomm.exe accounts for about 9% of > my CPU usage when I'm 'doing nothing' on my WinXP SP1 PC. That's > consistent over many observations. There are lots of other processes > running, but Task Manager shows zero for them in the CPU column. And > reinforcing that, if I run Filemon, a high proportion of the entries > are like these: > wcescomm.exe:1912 QUERY INFORMATION > wcescomm.exe:1912 CLOSE > wcescomm.exe:1912 OPEN > wcescomm.exe:1912 READ > Is that 9% typical for other users with their PPC cradled under XP > please? Seems a heck of a lot to me... > -- > Terry, West Sussex, UK > Using iPAQ 2210 with WM2003. FWIW, doesn't happen with hX2755 using 802.11 sync, whether or not the "Sync continuously" option is enabled... W2K SP4, WM2K3SE. 0-1% CPU as reported by TM. Maybe USB overhead? Posted by Chris De Herrera on October 9, 2005, 9:47 am Please log in for more thread options Hi, What you are seeing is the overhead to perform PPP encapsulation for packets that are being sent to the USB port. Because of the high speed connection, PPP is a very CPU intensive. With Windows Mobile 2005 devices you will see different results because Microsoft changed the protocol to use remote networking. -- Chris De Herrera http://www.pocketpcfaq.com http://www.tabletpctalk.com http://www.pocketpctalk.com http://www.mobilitytalk.com show/hide quoted text > Here, it seems that the process wcescomm.exe accounts for about 9% of > my CPU usage when I'm 'doing nothing' on my WinXP SP1 PC. That's > consistent over many observations. There are lots of other processes > running, but Task Manager shows zero for them in the CPU column. And > reinforcing that, if I run Filemon, a high proportion of the entries > are like these: > wcescomm.exe:1912 QUERY INFORMATION > wcescomm.exe:1912 CLOSE > wcescomm.exe:1912 OPEN > wcescomm.exe:1912 READ > Is that 9% typical for other users with their PPC cradled under XP > please? Seems a heck of a lot to me... > -- > Terry, West Sussex, UK > Using iPAQ 2210 with WM2003. Posted by Terry Pinnell on October 9, 2005, 7:17 pm Please log in for more thread options show/hide quoted text >Hi, >What you are seeing is the overhead to perform PPP encapsulation for packets >that are being sent to the USB port. Because of the high speed connection, >PPP is a very CPU intensive. >With Windows Mobile 2005 devices you will see different results because >Microsoft changed the protocol to use remote networking. Thanks all. Looks like I have to accept it as about normal then. Still seems very surprising that another 40 or so processes (including Explorer and whatever) plus half a dozen waiting applications all show '0', while the application that is merely watching for the rare occasions when I add/edit a task or appointment, or place a file in the PPC area, is at 9%! I could edit a largish graphic for that! Of course, I could switch it to Manual instead of Continuous - but show/hide quoted text then I'd forget, and miss an appointment <g> -- Terry, West Sussex, UK Similar Threads Posted Activesync 4.5 takes forever November 9, 2007, 9:25 am ActiveSync 4.5 Takes Forever to Sync August 24, 2007, 9:10 am directpush/exchange activesync takes forever June 21, 2006, 9:01 pm wcescomm.exe takes any where from 35-60 % of my cpu cycles February 16, 2006, 6:54 pm WM5 and AS4.1 issues - initial sync takes forever December 19, 2005, 9:03 pm new pda Fujitsu N560 wm5 syncing takes forever July 13, 2007, 8:29 pm HTC tyTN II - Connection slow, "Connecting" takes forever and often hangs, :-( November 27, 2007, 4:42 am Treo Exchange ActiveSync direct ActiveSync Xp and Mobile Sync Vist November 3, 2009, 9:16 pm ActiveSync Desktop API not working after ActiveSync 4 is installed June 13, 2006, 12:53 am "Microsoft ActiveSync cannot open the COM port" with "ActiveSync 4.5.0" June 18, 2007, 10:58 pm