[Bug 1848212] Re: Optane PM access times are much longer than they should be

This seems to be working correctly now here: https://lore.kernel.org/linux-nvdimm/CAPcyv4gi--MyxXOt- vb4Tw+ku=juymo4y+ysv+6ujf24bcd...@mail.gmail.com/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/184

[Bug 1848212] Re: Optane PM access times are much longer than they should be

Is there an estimate as to when you are likely to pick up this fix? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848212 Title: Optane PM access times are much longer than they should be To manage

[Bug 1848212] Re: Optane PM access times are much longer than they should be

https://lore.kernel.org/linux-nvdimm/CAPcyv4gi--MyxXOt- vb4Tw+ku=juymo4y+ysv+6ujf24bcd...@mail.gmail.com -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848212 Title: Optane PM access times are much

Re: [Bug 1848212] Re: Optane PM access times are much longer than they should be

On Thu, 24 Oct 2019 15:21:15 -, Kai-Heng Feng wrote: >Please test latest mainline kernel: >https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4-rc4/ > >And raise the issue to mailing list if the issue persists. I'll do that as soon as possible, maybe tonight or tomorrow. Thanks!

[Bug 1848212] Re: Optane PM access times are much longer than they should be

Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4-rc4/ And raise the issue to mailing list if the issue persists. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/18

[Bug 1848212] Re: Optane PM access times are much longer than they should be

I believe this bug is due to a change that causes files on a dax volume to be allocated as sparse files, so that every write to a new allocation unit causes another physical allocation. The previous behavior was to allocate the whole file up to the allocated size as one operation. This is just by

[Bug 1848212] Re: Optane PM access times are much longer than they should be

I have confirmed that the bug still exists in 5.6.3. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848212 Title: Optane PM access times are much longer than they should be To manage notifications