[Kernel-packages] [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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad

[Kernel-packages] [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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1848212 Title: Optane PM access times are much longer than they should

[Kernel-packages] [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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1848212 Title: Optane PM access ti

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

tomorrow. Thanks! ---- Steve Heller -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1848212 Title: Optane PM access times are much longer than they should be Status in linux package in Ubuntu:

[Kernel-packages] [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

[Kernel-packages] [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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1848212 Title: Optane PM access times are much longer than they should be Status in l

[Kernel-packages] [Bug 1848212] [NEW] Optane PM access times are much longer than they should be

Public bug reported: I have 4 128GB Optane DC Persistent Memory devices in my server, assigned to AppDirect access (i.e., accessed via memory-mapping at the cache line level), and have run into a severe performance issue with the latest kernel 5.0.0-31. I realize that not many people have this st