Richard Purdie
<[email protected]>
writes:

> Currently, ccache is used if it is present. When building from scratch
> it gives no performance improvement

Here, I have a 10% cache hit ratio in a scratch build:

cache hit (direct)                  2841
cache hit (preprocessed)            1370
cache miss                         39957
called for link                     3369
called for preprocessing            3207
multiple source files                  8
compile failed                      2531
preprocessor error                   432
couldn't find the compiler           111
bad compiler arguments               468
unsupported source language          532
autoconf compile/link               6613
unsupported compiler option          132
no input file                       2919
files in cache                     94205
cache size                           2.0 Gbytes
max cache size                       3.0 Gbytes



Enrico

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