Messages in this thread | | | Date | Mon, 8 Aug 2022 13:52:07 -0700 | Subject | Re: [RFC PATCH 0/2] cxl: BG operations and device sanitation | From | Dave Jiang <> |
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On 8/4/2022 1:07 PM, Davidlohr Bueso wrote: > On Thu, 04 Aug 2022, Dave Jiang wrote: > >> From the operational sense everything looks good to me. As for the >> polling delay on overwrite, with pre-CXL pmem on Optane, we've >> discovered that overwrite can take a long time depending on the size. >> Sometimes MANY hours if the size is really large. We just opted to >> increment the polling interval as time went on [1] instead of based on >> size. > > Thanks for having a look. Sure, we can do that, I have no particular > attachment > to doing it based on size (it's just the way it occured to me). I am > curious, > though: While regardless of size vs time based estimates, are the numbers > expected to be similar for volatile regions? All these numbers being from > nvdimm DSM docs.
I don't either. Just pointing out that's what we did with the Optane stuff. I think that the volatile devices (DRAM?) would probably be a lot faster when it comes to writes. So maybe won't take as long. And also perhaps smaller in size in the immediate future? Just guessing.
> > Thanks, > Davidlohr
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