Re: LiS-2.18 performance ?

[email protected] Sat, 10 Dec 2005 21:32:26 -0500
Newsgroups gmane.linux.kernel.streams
Message-ID <[email protected]>
> I suppose the only problem might be that some semaphore gets held  while
> queue are being run.  Perhaps Dave could comment why it was removed in
> the first place.  
 
Dave, sorry to bother you, can you comment on why the 'can_call'
processing was removed from lis_setqsched() function in LiS-2.18 ?
 
I.e. in 2.16 lis_setqsched() could call lis_runqueues() directly if 'can_call'
parameter was set.   In 2.18 everything is passed on to LiS threads.
 
Since performance is so much better with direct lis_runqueues() call
can I add it back?  I.e. is it safe to add it back or there is something to consider
before doing this?
 
I'll really appreciate your comments.
 
Thanks,
--
Eugene
 
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