Messages in this thread |  | | Date | Thu, 25 Jan 2024 17:41:12 +0800 | | From | Herbert Xu <> | | Subject | Re: [PATCH v4 2/6] mm/zswap: reuse dstmem when decompress |
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On Wed, Jan 03, 2024 at 03:57:59PM +1300, Barry Song wrote: > > > We could certainly do that. But I wonder if it might actually be > > better for you to allocate a second sync-only algorithm for such > > cases. I'd like to see some real numbers. > > some hardware might want to use an accelerator to help offload CPU's > work. their drivers are working in async mode, for example, hisilicon > and intel. > > I don't have the exact number we can save by removing the redundant > memcpy, nor do i have a proper hardware to test and get the number. > As Chengming is actually working in zswap, i wonder if you can test > my patches and post some data?
I don't have the hardware to test this. Since you're proposing the change, please test it to ensure that we're not adding cruft to the API that's actually detrimental to performance.
Thanks, -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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