This is the mail archive of the cygwin mailing list for the Cygwin project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: R: Cygwin 1.7.7 fork/exec performance MUCH slower than 1.5.25

--- Ven 1/10/10, SZABÓ Gergely  ha scritto:

> Ciao Marco,
> I do not think a real /home would help, as I have several
> colleagues who
> have a real /home, but still have similar slow performance
> with cygwin
> 1.7.x. 
> What kind of ACL issue could this be? And why is it no
> problem for
> Cygwin 1.5.25? Anything to do with the new cyglsa.dll?
> The funny thing is, The sum of the sys and user times for
> the "fork"
> script is around 1 minute. What happens in the remaining 3
> minutes, to
> make up that terrible time over 4 min?
> If I am watching the Windows Task Manager during the
> execution of the
> "fork" script, I see that the process "System" eats more
> than 50% of the
> CPU all the time. 

Antivirus ?
Some time on my system with McAfee, when I create a
huge number of files with cygwin the process "explorer.exe" 
go to 50% (100% of 1 CPU)and I need to kill it. 
I guess there is a timing problem between the antivirus
and cygwin-1.7.

> Best regards
> Gergely
> P.S: this is all Win32 (not x64) as you can see from the
> cygcheck
> files...

also here is Win32 XP SP2, and there is no difference in timing


PS: cygwin B15 and B20 ? How old is your PC :-?

Problem reports:
Unsubscribe info:

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]