Re: Impact of persistent NVM Memory (pnvm) on ZODB's performance

Jim Fulton <[email protected]> Fri, 6 Oct 2017 07:36:32 -0400
Newsgroups gmane.comp.web.zope.zodb
Message-ID <CAPDm-FgLKvL_7cG0X3sUcx3sAkztYBg3=igL1R0j0K19DvxB9A@mail.gmail.com>
On Thu, Oct 5, 2017 at 5:55 PM, Yashwardhan Singh <[email protected]>
wrote:

> Hi All,
>
> I am new to zodb and am interested in knowing if persistent non-volatile
> memory, will help in speeding up zodb.
>

I'm not sure what you mean here. Are you referring to something like
Intel's Optane technology?




> Is there any benchmark available for zodb for performance evaluation?
>

Not really, because ZODB applications can vary so much. (There's ZODB
shootout, but that's really a database server benchmark.)



> With persistent nvm. the objects which needs to be persistent can be
> directly allocated on it and thus might help in getting rid of pickling
> cost. Any comments?
>

Again, I'm not sure what technology you're referring to.  AFAIK, Optane is
~100x slower than DRAM, so, IDK that I'd want to use it directly.  I'd be
inclined to use it for some kind of cache. I don't think that unpickling is
a major performance factor.

Jim

-- 
Jim Fulton
http://jimfulton.info

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