Home » U++ Library support » U++ MT-multithreading and servers » multi-threading slower than single thread
| Re: multi-threading slower than single thread [message #24793 is a reply to message #24792] |
Sat, 30 January 2010 10:35   |
Didier
Messages: 680
Registered: November 2008
Location: France
|
Contributor |
|
|
Hi,
the same code runs faster with one thread than with several threads !
==> This is not a code performance issue : you would have the same problem with the single threaded version.
So must be a synchronisation problem :either you're use of mutexes has a bug ( maybe the API changed ? ), or more likely some internals use mutexes for GUI protection and you fall into global thread lock situation (all other threads are locked until the current thread has finished) .... and of corse on multi core, this is not good !
Do you're threads interact with GUI ?
[Updated on: Sat, 30 January 2010 10:36] Report message to a moderator |
|
|
|
Current Time: Wed May 08 01:43:59 CEST 2024
Total time taken to generate the page: 0.02090 seconds
|
Members
Pages
Help
Register
Login
Home
