CVS log for xfs-cmds/xfsdump/restore/namreg.h

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Default branch: MAIN

Revision 1.6 / (download) - annotate - [select for diffs], Tue Jan 31 15:47:31 2006 UTC (11 years, 8 months ago) by wkendall
Branch: MAIN
CVS Tags: HEAD
Changes since 1.5: +3 -0 lines
Diff to previous 1.5 (colored)

This mod adds a number of optimizations to increase the
performance of xfsdump and xfsrestore, especially on filesystems
with millions of inodes. Many small changes were made to
minimize the number of system calls required per inode.
Significant changes to xfsdump:
- Cache the gen number of each inode during the initial inode
  scan so that a bulkstat single does not need to be done for
  each inode when dumping directories.
- No longer retrieve the DMF attribute when estimating the dump
  size of a file. Use information from the bulkstat instead.
- Retrieve DMF attribute by handle instead of doing
  open/attr_getf/close.
- In determining where to split multi-stream dumps, take into
  consideration the number of files and not just the file size.
  This allows filesystems with large amounts of inodes but
  relatively little data (DMF filesystem) to be split correctly.
Significant changes to xfsrestore:
- Buffer writes to the namreg file to eliminate 2 very small
  write system calls per directory entry.
- Buffer writes to dirattr file to eliminate a small write system
  call per directory.
- Speedup the check to see if a particular window of the tree
  file is mapped. This allows xfsrestore to use more, smaller
  windows which is beneficial if we can't fit them all in memory
  and have to start unmapping them. This also makes the -w
  option obsolete so that option now has no effect.
- Change the hash function to give a better distribution among
  the hash buckets.
- Do not make an unnecessary unlink call if the file being
  restored does not already exist.

Revision 1.5 / (download) - annotate - [select for diffs], Wed Nov 9 05:04:17 2005 UTC (11 years, 11 months ago) by nathans.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.4: +14 -28 lines
Diff to previous 1.4 (colored)

Update copyright annotations and license boilerplates to correspond with SGI Legals preferences.
Merge of master-melb:xfs-cmds:24334a by kenmcd.

Revision 1.4 / (download) - annotate - [select for diffs], Tue Jun 4 23:07:56 2002 UTC (15 years, 4 months ago) by sandeen
Branch: MAIN
CVS Tags: XFS-1_3_0pre1
Changes since 1.3: +1 -1 lines
Diff to previous 1.3 (colored)

Update copyright dates (again)

Revision 1.3 / (download) - annotate - [select for diffs], Tue Jun 4 22:53:09 2002 UTC (15 years, 4 months ago) by sandeen
Branch: MAIN
Changes since 1.2: +1 -1 lines
Diff to previous 1.2 (colored)

Undoes mod:     xfs-cmds:slinx:120772a
Undo xfs-cmds:slinx:120772a, inadvertently whacked a previous mod.

Revision 1.2 / (download) - annotate - [select for diffs], Tue Jun 4 17:58:21 2002 UTC (15 years, 4 months ago) by sandeen
Branch: MAIN
Changes since 1.1: +1 -1 lines
Diff to previous 1.1 (colored)

Update copyright dates

Revision 1.1 / (download) - annotate - [select for diffs], Mon Jan 15 04:06:20 2001 UTC (16 years, 9 months ago) by nathans
Branch: MAIN
CVS Tags: Release-1_0_0, Linux-2_4_5-merge

cmd/xfs/dump/restore/namreg.h 1.2 Renamed to cmd/xfsdump/restore/namreg.h

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