windows – NTFS的最大理论数据传输吞吐量是多少?

最近我参加了本地用户组会议,主持人指出NTFS IO堆栈的最大吞吐量为1 GBps.他通过同时将两个大文件从同一逻辑卷复制到不同的逻辑卷(即[a]是源,[b]是目的地1和[c]是目的地2)并注意到转移率徘徊在500左右来证实了他的主张. MBps的.他重复了几次这个测试并注意到底层存储子系统是闪存(以确保我们不怀疑缓慢存储).

我一直试图验证这个断言,但找不到任何记录.我怀疑我正在搜索错误的搜索条件(“1GBps NTFS吞吐量”,“NTFS吞吐量最大值”).我对IO堆栈实际上是否限制为1GBps吞吐量感兴趣.

编辑

澄清一下:我不相信主持人意图暗示NTFS是故意限制的(如果我暗示这一点,我很抱歉).我认为它暗示它是文件系统设计的一个功能.

即使假设你的意思是GBps而不是Gbps ……

我不知道任何具有实际吞吐量限制的文件系统.文件系统只是围绕如何存储和检索文件的结构.它们使用元数据,结构,命名约定,安全约定等,但实际的吞吐量限制是由底层硬件本身定义的(通常是涉及大量硬件的组合).

可以比较不同的文件系统以及它们如何影响底层硬件的性能,但同样不是文件系统直接施加的限制,而是系统整体性能的“变量”.

选择将一个文件系统部署到另一个文件系统通常与底层操作系统是什么,服务器/应用程序将是什么,底层硬件是什么以及软件因素(如管理员的专业领域和熟悉程度)有关.

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技术资源和引用

Optimizing NTFS

NTFS Performance Factors

You determine many of the factors that affect an NTFS volumes’
performance. You choose important elements such as an NTFS volume’s
type (e.g., SCSI, or IDE), speed (e.g., the disks’ rpm speed), and the
number of disks the volume contains. In addition to these important
components, the following factors significantly influence an NTFS
volume’s performance:

  • The cluster and allocation unit size
  • The location and fragmentation level of frequently accessed files, such as the Master File Table (MFT), directories, special files
    containing NTFS metadata, the paging file, and commonly used user data
    files
  • Whether you create the NTFS volume from scratch or convert it from an existing FAT volume
  • Whether the volume uses NTFS compression
  • Whether you disable unnecessary NTFS behaviors

Using faster disks and more drives in multidisk volumes is an obvious
way to improve performance. The other performance improvement methods
are more obscure and relate to the details of an NTFS volume’s
configuration.

Scalability and Performance in Modern File Systems

Unfortunately, it is impossible to do direct performance comparisons
of the file systems under discussion since they are not all available
on the same platform. Further, since available data is necessarily
from differing hardware platforms, it is difficult to distinguish the
performance characteristics of the file system from that of the
hardware platform on which it is running.

NTFS Optimization

New white paper providing guidance for sizing NTFS volumes

What’s new in NTFS

Configuring NTFS file system for performance

https://superuser.com/questions/411720/how-does-ntfs-compression-affect-performance

Best practices for NTFS compression in Windows

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