Mail Archives: cygwin/1997/03/17/09:29:58
Hi!
This patch increases the speed of stat/lstat calls dramatically. The trick
is simple. Cygwin's stat call implementation reads the beginning of stated
file to look for a "magic cookie" to define "executable" and "symlink"
attributes of a file. With this patch reading is performed only if file
have "archive" bit cleared. All ordinary files (not executables/symlinks)
have this bit set. After applying this patch You have to "chmod +x file" on
all executables/symlinks. I made a "chmod +x *" on directories with
binaries. Later I'll write a special utility "fssync" to examine all files
in a given directory tree and to set archive bit according to file magic
cookie. Compare the time of "du ." on cygwin's root without and with this
patch :-)
--
Sergey Okhapkin
Moscow, Russia
Looking for a job.
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