| Message ID | 20190114081942.9088-1-andi@firstfloor.org |
|---|---|
| State | New |
| Headers | show |
| Series | [1/3] Lower sampling rate for autofdo bootstrap | expand |
On Mon, Jan 14, 2019 at 9:20 AM Andi Kleen <andi@firstfloor.org> wrote: > > From: Andi Kleen <ak@linux.intel.com> > > autofdo create_gcov uses a lot of memory for large sample files. > Since gcc runs quite long the sample files generated during > the bootstrap are fairly ig. > > Currently I can't even build make autoprofiledbootstrap on my system at > home because create_gcov needs more than 12GB and runs out of memory. > > This should probably be fixed in create_gcov, but for now > lowering the sampling rate works well enough for me. The bootstrap > run is long enough that it gets good enough data in any case. OK. Richard. > gcc/: > 2019-01-14 Andi Kleen <ak@linux.intel.com> > > * Makefile.in: Lower autofdo sampling rate by 10x. > * Makefile.tpl: Dito. > --- > Makefile.in | 2 +- > Makefile.tpl | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/Makefile.in b/Makefile.in > index aa41730528a..28539a45372 100644 > --- a/Makefile.in > +++ b/Makefile.in > @@ -387,7 +387,7 @@ MAKEINFO = @MAKEINFO@ > EXPECT = @EXPECT@ > RUNTEST = @RUNTEST@ > > -AUTO_PROFILE = gcc-auto-profile -c 1000000 > +AUTO_PROFILE = gcc-auto-profile -c 10000000 > > # This just becomes part of the MAKEINFO definition passed down to > # sub-makes. It lets flags be given on the command line while still > diff --git a/Makefile.tpl b/Makefile.tpl > index 1ab65ac8ec4..126296fb49a 100644 > --- a/Makefile.tpl > +++ b/Makefile.tpl > @@ -390,7 +390,7 @@ MAKEINFO = @MAKEINFO@ > EXPECT = @EXPECT@ > RUNTEST = @RUNTEST@ > > -AUTO_PROFILE = gcc-auto-profile -c 1000000 > +AUTO_PROFILE = gcc-auto-profile -c 10000000 > > # This just becomes part of the MAKEINFO definition passed down to > # sub-makes. It lets flags be given on the command line while still > -- > 2.19.1 >
diff --git a/Makefile.in b/Makefile.in index aa41730528a..28539a45372 100644 --- a/Makefile.in +++ b/Makefile.in @@ -387,7 +387,7 @@ MAKEINFO = @MAKEINFO@ EXPECT = @EXPECT@ RUNTEST = @RUNTEST@ -AUTO_PROFILE = gcc-auto-profile -c 1000000 +AUTO_PROFILE = gcc-auto-profile -c 10000000 # This just becomes part of the MAKEINFO definition passed down to # sub-makes. It lets flags be given on the command line while still diff --git a/Makefile.tpl b/Makefile.tpl index 1ab65ac8ec4..126296fb49a 100644 --- a/Makefile.tpl +++ b/Makefile.tpl @@ -390,7 +390,7 @@ MAKEINFO = @MAKEINFO@ EXPECT = @EXPECT@ RUNTEST = @RUNTEST@ -AUTO_PROFILE = gcc-auto-profile -c 1000000 +AUTO_PROFILE = gcc-auto-profile -c 10000000 # This just becomes part of the MAKEINFO definition passed down to # sub-makes. It lets flags be given on the command line while still
From: Andi Kleen <ak@linux.intel.com> autofdo create_gcov uses a lot of memory for large sample files. Since gcc runs quite long the sample files generated during the bootstrap are fairly ig. Currently I can't even build make autoprofiledbootstrap on my system at home because create_gcov needs more than 12GB and runs out of memory. This should probably be fixed in create_gcov, but for now lowering the sampling rate works well enough for me. The bootstrap run is long enough that it gets good enough data in any case. gcc/: 2019-01-14 Andi Kleen <ak@linux.intel.com> * Makefile.in: Lower autofdo sampling rate by 10x. * Makefile.tpl: Dito. --- Makefile.in | 2 +- Makefile.tpl | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)