Hi,
I have been working on speeding up rm.
The idea is to save on kernel calls.
While kernel calls are fast, not doing
them is still a lot faster.
I do think there is more to gain, but
before I proceed it's best to first see if
this is something you're willing to commit.
I guess the first five patches are trivial,
I would really like some feedback on the last six.
Also, I'd like to state: I provide my patches to
the Cygwin sources under the 2-clause BSD license
Thank you,
Ben Wijen (11):
syscalls.cc: unlink_nt: Try FILE_DISPOSITION_IGNORE_READONLY_ATTRIBUTE
first
syscalls.cc: Deduplicate _remove_r
syscalls.cc: Fix num_links
syscalls.cc: Use EISDIR
Cygwin: Move post-dir unlink check
cxx.cc: Fix dynamic initialization for static local variables
syscalls.cc: Implement non-path_conv dependent _unlink_nt
path.cc: Allow to skip filesystem checks
mount.cc: Implement poor-man's cache
syscalls.cc: Expose shallow-pathconv unlink_nt
dir.cc: Try unlink_nt first
winsup/cygwin/Makefile.in | 2 +-
winsup/cygwin/cxx.cc | 10 -
winsup/cygwin/dir.cc | 6 +
winsup/cygwin/fhandler_disk_file.cc | 24 +-
winsup/cygwin/forkable.cc | 4 +-
winsup/cygwin/mount.cc | 78 ++++--
winsup/cygwin/mount.h | 2 +-
winsup/cygwin/ntdll.h | 3 +-
winsup/cygwin/path.cc | 5 +-
winsup/cygwin/path.h | 2 +
winsup/cygwin/syscalls.cc | 366 +++++++++++++++++++++++-----
11 files changed, 384 insertions(+), 118 deletions(-)
--
2.29.2
