https://bugs.documentfoundation.org/show_bug.cgi?id=129632
Bug ID: 129632
Summary: ccache does not get any hits on 'make sc' just after
'make sc.clean'
Product: LibreOffice
Version: 6.5.0.0.alpha0+ Master
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: LibreOffice
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: dennisfrancis...@gmail.com
Description:
After a fresh build of master, and a 'make sc.clean' ccache does not get any
hits on running 'make sc.build'.
$ cat autogen.input
--with-parallelism=2
--disable-skia
--without-junit
--enable-symbols
--without-doxygen
--without-help
--without-myspell-dicts
--enable-assert-always-abort
Steps to Reproduce:
1. Setup ccache if you don't have already.
2. Clear ccache cache if there are any.
3. Start a fresh build of core.git master branch (I am at head
56063d30628ee2497a7c559d7de42d26e9cfc8ae). To save time for the purposes of
reproduction, do 'make build-nocheck'
4. run 'make sc.clean'
5. run 'make sc.build'
Actual Results:
The fifth step 'make sc.build' actually invokes the compiler every time because
of ccache misses. It is pretty obvious due to the long time it takes to finish
this step.
Expected Results:
The fifth step 'make sc.build' should have finished under a minute. At least
until a few weeks ago, with ccache this step used to finish under a minute.
Reproducible: Always
User Profile Reset: No
Additional Info:
uname -a
Linux dennis-laptop 4.19.0-6-amd64 #1 SMP Debian 4.19.67-2+deb10u2 (2019-11-11)
x86_64 GNU/Linux
ccache -V
ccache version 3.6
I'm certain that there was no such issue in the master from late November. I'll
try to get debug logs from ccache debug-mode runs, next time I build.
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