diff options
authorRichard Purdie <>2015-04-10 15:57:04 +0100
committerRichard Purdie <>2015-04-11 16:21:47 +0100
commit0d1f75b9d67aa796a14be115e9f04d5d6247ce40 (patch)
parent542d9770f28cff298368263dd55f4c6e7bdbfb5c (diff)
bitbake: cooker: Further optimise pyinotify
We currently add crazy numbers of watches on files. The per user limit is 8192 by default and on a system handling multiple builds, this can be an issue. We don't need to watch all files individually, we can watch the directory containing the file instead. This gives better resource utilisation and better performance further reverting some of the performance regression seen with the introduction of pyinotify. (Bitbake rev: a2d441237916a99405b800c1a3dc39f860100a8c) (Bitbake rev: 6ab3945fc54b2a242292a874d78ebd8cccb99573) Signed-off-by: Richard Purdie <>
1 files changed, 4 insertions, 1 deletions
diff --git a/bitbake/lib/bb/ b/bitbake/lib/bb/
index 614d47d16f..e965bcc440 100644
--- a/bitbake/lib/bb/
+++ b/bitbake/lib/bb/
@@ -180,7 +180,10 @@ class BBCooker:
if not watcher:
watcher = self.watcher
for i in deps:
- f = i[0]
+ f = os.path.dirname(i[0])
+ if f in watcher.bbseen:
+ continue
+ watcher.bbseen.append(f)
while True:
# We try and add watches for files that don't exist but if they did, would influence
# the parser. The parent directory of these files may not exist, in which case we need