---
name: "nvme_pmr_size"
section: "2"
platform: "linux"
package: "libnvme-dev"
version: "1.13-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nvme_pmr_size"
---

# nvme\_pmr\_size(2)

Calculate size of persistent memory region elasticity buffer

## NAME

nvme\_pmr\_size - Calculate size of persistent memory region elasticity buffer

## SYNOPSIS

**\_\_u64 nvme\_pmr\_size** **(\_\_u32 pmrebs** *);*

## ARGUMENTS

- pmrebs

  Value from controller register NVME\_REG\_PMREBS

## RETURN

size of controller persistent memory buffer in bytes