Linux 3.4 kernel released
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Linux 3.4 kernel released
1–10 of 47 posts
Re: Linux 3.4 kernel released
#2Btrfs is getting the love.
Re: Linux 3.4 kernel released
#3The X32 ABI is interesting. Who'd have thought this many years after 64 bit becoming mainstream, (and decades after it becoming mainstream on servers) something like this would be needed.
Re: Linux 3.4 kernel released
#4Is default support for dynamic graphics switching (~bumblebee) meant to be implemented as part of the kernel or the graphics driver?
Re: Linux 3.4 kernel released
#5What I thought was more interesting (Linus noted "Nothing really exciting happened since -rc7...") was the exchange between Linus and Peter Zijlstra, in particular this Linus eruption:
Re: Linux 3.4 kernel released
#6The X32 ABI is interesting. Who'd have thought this many years after 64 bit becoming mainstream, (and decades after it becoming mainstream on servers) something like this would be needed.
Anyone has a good argument why NOT to use this for every non memory intensive application? I always thought that using 64bit pointers was a waste of memory when not needed and this x32 abi to me seems fantastic since it keeps the several advantages of newer 64bit cpus (more registers for example as mentioned in the article).
Re: Linux 3.4 kernel released
#7The X32 ABI is interesting. Who'd have thought this many years after 64 bit becoming mainstream, (and decades after it becoming mainstream on servers) something like this would be needed.
Anyone has a good argument why NOT to use this for every non memory intensive application? I always thought that using 64bit pointers was a waste of memory when not needed and this x32 abi to me seems fantastic since it keeps the several advantages of newer 64bit cpus (more registers for example as mentioned in the article).
If an application is not memory intensive, why would you care if there is 'waste'? Personally I wish everyone would just move to 64 bit all the time.
Re: Linux 3.4 kernel released
#8What I thought was more interesting (Linus noted "Nothing really exciting happened since -rc7...") was the exchange between Linus and Peter Zijlstra, in particular this Linus eruption: https://lkml.org/lkml/2012/5/19/97
Your link is empty.
Re: Linux 3.4 kernel released
#9Earlier quoted context omitted.
Anyone has a good argument why NOT to use this for every non memory intensive application? I always thought that using 64bit pointers was a waste of memory when not needed and this x32 abi to me seems fantastic since it keeps the several advantages of newer 64bit cpus (more registers for example as mentioned in the article).
If an application is not memory intensive, why would you care if there is 'waste'? Personally I wish everyone would just move to 64 bit all the time.
An application that uses 64-bit pointers but doesn't need 64-bits of virtual address space is wasting physical memory because your pointers are twice as large. The application would waste physical memory pages and memory bus traffic just to store 64-bit pointers with lots of unused zero bits like 0x00000000ffffffff.
Re: Linux 3.4 kernel released
#10Earlier quoted context omitted.
Anyone has a good argument why NOT to use this for every non memory intensive application? I always thought that using 64bit pointers was a waste of memory when not needed and this x32 abi to me seems fantastic since it keeps the several advantages of newer 64bit cpus (more registers for example as mentioned in the article).
If an application is not memory intensive, why would you care if there is 'waste'? Personally I wish everyone would just move to 64 bit all the time.
Because there is a finite amount of cache at each level.