** Changed in: linux (Ubuntu Bionic)
Status: Triaged => Fix Committed
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https://bugs.launchpad.net/bugs/1745899
Title:
[Bug][KVM][Crystal Ridge] Terrible performance of vNVDIMM on QEMU with
device DAX backend
Status in intel:
New
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Bionic:
Fix Committed
Bug description:
Description:
When device DAX (e.g., /dev/daxX.Y) is used as QEMU vNVDIMM backend, its
performance in guest is far behind the performance on bare metal.
Commit Ids:
aa2e063aea79 b8d7044bcff7 (which is in KVM branch instead of mainline kernel)
Target kernel:4.16
Target Release:18.04
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