linux/poky.git/meta/lib/oe/cachedpath.py, branch krogoth

cachedpath.py: global name 'error' is not defined

2013-05-15T16:27:11+00:00

The error is not global since we don't use "from os import *", so it should be os.error. [YOCTO #4489] (From OE-Core rev: ac0e2781c2723257bd380cac170d4c8b97e36747) Signed-off-by: Robert Yang Signed-off-by: Richard Purdie

clases/lib: Use modern exception syntax

2013-05-09T13:06:50+00:00

Update older code to use modern exception handling syntax which is the form accepted by python 3. (From OE-Core rev: b010501cd089e649a68f683be0cf4d0aac90fbe3) Signed-off-by: Richard Purdie

package: Add cachedpath optimisation

2013-03-18T21:26:40+00:00

Currently, various standard library operations like os.walk(), os.path.isdir() and os.path.islink() each call stat or lstat which involves a syscall into the kernel. There is no caching since they could conceivably have changed on disk. The result is that for something like the do_package task of the kernel we're spending over two minutes making 868,000 individual stat calls for 23,000 files. This is suboptimal. This patch adds lib/oe/cachedpath.py which are a set of replacement functions for these operations which use cached stat data rather than hitting the kernel each time. It gives a nice performance improvement halving the build time of the kernel do_package. (From OE-Core rev: 556dee0c4d6d8a87c0cddbd2f60fe5917d009f18) Signed-off-by: Richard Purdie