On 2025-03-26 11:37 pm, Andreas Rheinhardt wrote:
Gyan Doshi:
On 2025-03-25 05:11 pm, Ramiro Polla wrote:
Hi,
On Sat, Mar 22, 2025 at 5:33 AM Gyan Doshi <ffm...@gyani.pro> wrote:
On 2025-03-22 03:29 am, Martin Storsjö wrote:
On Fri, 21 Mar 2025, Gyan Doshi wrote:
ffbuild/library.mak | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/ffbuild/library.mak b/ffbuild/library.mak
index 7e1871b74c..15302852ec 100644
--- a/ffbuild/library.mak
+++ b/ffbuild/library.mak
@@ -36,7 +36,8 @@ endif
$(SUBDIR)$(LIBNAME): $(OBJS) $(STLIBOBJS)
$(RM) $@
ifeq ($(AR_OBJS),true)
- $(Q)echo $^ > $@.objs
+ -$(RM) $@.objs
+ $(Q)$(foreach ARG,$^,echo -n "$(ARG) " >> $@.objs;)
Does this instance even work, it looks broken, like it is missing
something?
Tested both static and shared building. All working with no noticeable
speed difference although I didn't formally bench.
It's generally a good idea to check for and report the speed
differences. Even if just for the sake of curiosity.
So, with this configure:
--disable-doc --disable-w32threads --enable-pthreads --disable-
autodetect --cc="ccache gcc" --enable-static --enable-shared --extra-
ldflags="-static" --enable-gpl --enable-version3
I ran one priming run + 5 repeat runs of `time make -j4`.
Before, real ranged from 2m10.188s to 2m12.154s
After, real ranged from 2m12.486s to 2m13.405s
I also ran one priming run + 5 repeat runs of `time make -j4
libavcodec/libavcodec.a libavcodec/avcodec.dll`.
Before, real ranged from 1m34.232s to 1m42.721s
After, real ranged from 1m32.360s to 1m39.484s
I presume this command compiled the whole of FFmpeg/libavcodec, i.e. it
did not just link, didn't it?
Its deps, are *.o in lavu, lswr, lavc, but after the priming run, all
the cc steps would be cache hits,
so the bulk of the fresh executions are the linking steps.
Regards,
Gyan
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