Hi Martin,
Thanks for the response.
Yes, all the various compilations produce the exact same binary output.
On Monday, May 5, 2014 6:38 AM, Martin Pool m...@sourcefrog.net wrote:
Do the various compilations produce the exact same binary output?
There might be something in your tree that makes the output vary from one run
to the next.
On Apr 29, 2014 3:50 PM, Sunny Jose sunju_j...@yahoo.com wrote:
Hi,
I want to share the ccache built using one workspace to be utilized by another
workspace, so that one copy of ccache data is used for compiling identical
source code.
E.x: 1) Created a workspace (home/user/source_code1). 2) synced the code here
from the server. 3) Compiled the Code with USE_CCACHE=1
The above will build my ccache. Now I do the following
Case 1: 1) Created a workspace (home/user/source_code2). 2) synced identical
source code here from the server. 3) Did the same compilation as I did in the
earlier workspace.
Case 2: 1) Delete workspace home/user/source_code1 2) Re-create the earlier
workspace (home/user/source_code1). 2) Re-synced the code here from the
server. 3) Compiled the Code with USE_CCACHE=1
I want source_code2 compilation to use the ccache built from source_code1 and
when I delete and re-create the same workspace, I need the compilation to
happen with the ccache already built. Any pointers to achieve the same are
welcome!
The result that I see now in both the above cases is though ccache is built it
is never used or there are no hits in the ccache, it keeps on getting built up
whenever a new workspace is used, If I just clean the build and re-compile in
the same workspace without deleting any earlier source
code(home/user/source_code1), then ccache compilation jumps in and there are
hits which help in reducing the build time.
Any idea why I do not see any ccache hits whenever a brand new workspace is
used?
I always have the ccache miss incremented rather than the cache hit
(direct) , or , cache hit (preprocessed) . Also the cache hit (direct) is
always 0.
I have set the following variables.
CCACHE_BASEDIR= /home/user
USE_CCACHE=1
CCACHE_DIR=/home/user/ccache
CCACHE_SLOPPINESS=time_macros,file_macro
Kindly please let me know if I'm missing something obvious here.
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