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authorRichard Purdie <richard.purdie@linuxfoundation.org>2012-08-15 15:57:47 (GMT)
committerRichard Purdie <richard.purdie@linuxfoundation.org>2012-08-16 10:19:02 (GMT)
commit2718537b4b04eb3d80ab4d74171b58e7b8dd68b8 (patch)
tree063558b2a40f6fc7e1ee83ca7e5273d7be58e819
parente2d023ff5fbf6c11e7edeb1d5f27d9c6fb307cc5 (diff)
downloadpoky-2718537b4b04eb3d80ab4d74171b58e7b8dd68b8.tar.gz
bitbake: build.py: Only execute mkdirhier if stampdir doesn't exist
I noticed this was showing up on profile logs as a sigificant time user in "bitbake bash" when bash was already built. It reduces the time from 5.2 to 4.5 seconds in my test environment. We make use of the parser's mtime cache as once a directory exists, we can assume it continues to exist and this avoids syscalls. (Bitbake rev: 769b694eeb617bb793bd79d0d7b29c43d2646ece) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--bitbake/lib/bb/build.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index bea2926..d64077e 100644
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -464,7 +464,9 @@ def stamp_internal(taskname, d, file_name):
464 464
465 stamp = bb.parse.siggen.stampfile(stamp, file_name, taskname, extrainfo) 465 stamp = bb.parse.siggen.stampfile(stamp, file_name, taskname, extrainfo)
466 466
467 bb.utils.mkdirhier(os.path.dirname(stamp)) 467 stampdir = os.path.dirname(stamp)
468 if bb.parse.cached_mtime_noerror == 0:
469 bb.utils.mkdirhier(stampdir)
468 470
469 return stamp 471 return stamp
470 472