[Bug 47128] New: Heroes of the Storm: Unreasonable I/ O disk usage on leading to stuttering during game gameplay

https://bugs.winehq.org/show_bug.cgi?id=47128

Bug ID: 47128
           Summary: Heroes of the Storm: Unreasonable I/O disk usage on
                    leading to stuttering during game gameplay
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

This was experienced from me and a few people I play with on Linux + Wine

Distribution: Ubuntu 19.04
Hardware: 19.04, the machine has an AMD Ryzen 5 1600 CPU, GTX NVIDIA 1060 3GB,
2x4GB dual channel DDR4 HyperX RAM, Crucial MX 500 SSD, MSI b350m mortar
motherboard, nvidia driver 430.09
Wine version: Tested 4.6, and a couple of others leading pretty much the same
results.

What was tested:
-Playing from an ntfs-3g partition on an HDD (Seagate 5200RPM)
-Playing from an ntfs-3g partition on an SSD (Crucial MX500)
-Playing from an ext4 partition on an SSD and HDD (the same as above)

No matter what configuration, graphics driver, DXVK, wine d3d11 or not, using
disk monitoring software like iotop clearly shows unreasonable I/O usage (close
to 100%) when those stutters happen for small reads (less than 1 Megabyte)
leading the game to be mostly unplayable thanks to those, which for example do
not happen on other wine games with the same specs/config even more
graphics-demanding.

This happens during the normal gameplay, not during the loading.

This is obviously worse when the game is run from an HDD, slightly better but
still present on an SSD. Of course the I/O usage is different from the one
Windows has in this game.

I am obviously available for further testing if you tell me what to do to
better diagnose that.