This is the mail archive of the cygwin@cygwin.com 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: Cygwin signal bandwidth


Sorry about the multiple posts, I was trying to use gmane and it delayed delivery of my messages for 90 minutes, so I did the naive thing and sent it two more times.

-Rolf

Rolf Campbell wrote:
While working on a project, I had the need to run a function every millisecond. So, my first attempt was to fork() and then loop sending a signal then delaying 1ms. What I found was that a cygwin process can only recieve about 100 signals/sec before it uses up 100% of the processor (on a PIII/850MHz).

Is it reasonable for me to conclude that cygwin uses about 8,000,000 cycles to process a single signal, or have I done something wrong?

-Rolf


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/


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