Requires Vulkan 1.0
Jeff Bolz jeffbolznv
- Last Modified Date
Jeff Bolz, NVIDIA
Jeff Juliano, NVIDIA
While running a Vulkan application, other processes on the machine might also be attempting to use the same device memory, which can pose problems. This extension adds support for querying the amount of memory used and the total memory budget for a memory heap. The values returned by this query are implementation-dependent and can depend on a variety of factors including operating system and system load.
can be used as a guideline for how much total memory from each heap the
current process can use at any given time, before allocations may start
failing or causing performance degradation.
The values may change based on other activity in the system that is outside
the scope and control of the Vulkan implementation.
display the current process estimated heap usage.
With this information, the idea is for an application at some interval (once
per frame, per few seconds, etc) to query
From here the application can notice if it is over budget and decide how it
wants to handle the memory situation (free it, move to host memory, changing
mipmap levels, etc).
This extension is designed to be used in concert with
to help with this part of memory management.
For more information, see the Vulkan Specification
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