BUG: File Creation Time Increases as Files Are Added to a Volume |
Q196071
The information in this article applies to:
- Microsoft Windows NT Server versions 3.5, 3.51, 4.0
- Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0
SYMPTOMS
As more and more files are created on an NTFS volume, the amount of time it takes to create new files increases linearly with the number of files existing on the volume. This slowdown becomes more noticeable when creating many new files when there are already millions of preexisting files on the volume.
CAUSE
Each time a file is created, a file record is allocated from the MFT (Master File Table). As more files are created on a volume, the MFT grows larger and the amount of time it takes to allocate a free file record from the MFT increases.
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.
REFERENCES
For additional information, please see the following articles in the Microsoft Knowledge Base:
Q120363 Slow Performance on NTFS with Long Filenames
Q174619 How NTFS Reserves Space for its Master File Table (MFT)
Additional query words:
Keywords : kbFileIO kbKernBase kbOSWinNT350 kbOSWinNT351 kbOSWinNT400 _IK kbGrpDSKernBase
Issue type : kbbug
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351xsearch kbWinNT350xsearch kbWinNT400xsearch kbWinNTW350 kbWinNTW350xsearch kbWinNTW351xsearch kbWinNTW351 kbWinNTSsearch kbWinNTS400xsearch kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS351xsearch kbWinNTS350xsearch
Last Reviewed: October 27, 2000 |
