Messages in this thread | | | From | Keith Owens <> | Subject | Re: [POLL] SLAB : Are the 32 and 192 bytes caches really usefull on x86_64 machines ? | Date | Thu, 29 Dec 2005 12:50:10 +1100 |
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Dave Jones (on Wed, 28 Dec 2005 20:29:15 -0500) wrote: > > > Something like this: > > > > http://lwn.net/Articles/124374/ > >One thing that really sticks out like a sore thumb is soft_cursor() >That thing gets called a *lot*, and every time it does a kmalloc/free >pair that 99.9% of the time is going to be the same size alloc as >it was the last time. This patch makes that alloc persistent >(and does a realloc if the size changes). >The only time it should change is if the font/resolution changes I think.
Can soft_cursor() be called from multiple processes at the same time, in particular with dual head systems? If so then a static variable is not going to work.
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