Originally posted by tajjada
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Linux's vmalloc Seeing "Large Performance Benefits" With 5.2 Kernel Changes
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Originally posted by tajjada View PostAFAIK ZFS is a heavy user of vmalloc, because it was ported from Solaris and using virtual memory in kernelspace is much more popular there than in Linux. Too bad ZFS is slow af on crippled 5.0+ kernels without patches to fix them.
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AFAIK ZFS is a heavy user of vmalloc, because it was ported from Solaris and using virtual memory in kernelspace is much more popular there than in Linux. Too bad ZFS is slow af on crippled 5.0+ kernels without patches to fix them.
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This is obviously a huge travesty. Now all the SNES emulators will have to embed delay ops to counteract this performance improvement and keep the speed run players honest!
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Originally posted by urezki View PostI gave a talk about this at LLC conference(https://lundlinuxcon.org) in Sweden. So if somebody is interested
in you can find more details about it here: ftp://vps418301.ovh.net/incoming/Rew...nux_kernel.pdf
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Vlad Rezki
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I gave a talk about this at LLC conference(https://lundlinuxcon.org) in Sweden. So if somebody is interested
in you can find more details about it here: ftp://vps418301.ovh.net/incoming/Rew...nux_kernel.pdf
--
Vlad Rezki
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Originally posted by Widefox View PostLinus on vmalloc "There are basically no valid new uses of it. There's a few valid legacy users (I think the file descriptor array), and there are some drivers that use it (which is crap, but drivers are drivers), and it's _really_ valid only for modules. Nothing else." https://lwn.net/Articles/57800/
[1]https://lwn.net/Articles/692208/
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Guest repliedOriginally posted by Widefox View PostLinus on vmalloc "There are basically no valid new uses of it. There's a few valid legacy users (I think the file descriptor array), and there are some drivers that use it (which is crap, but drivers are drivers), and it's _really_ valid only for modules. Nothing else." https://lwn.net/Articles/57800/
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