From 6facd01f982ddeffccb2a66dec2041322f3a9b76 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 15 Jan 2019 03:49:45 +0000 Subject: [PATCH] Lower sampling rate for autofdo bootstrap 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 * Makefile.in: Lower autofdo sampling rate by 10x. * Makefile.tpl: Dito. From-SVN: r267930 --- Makefile.in | 2 +- Makefile.tpl | 2 +- gcc/ChangeLog | 5 +++++ 3 files changed, 7 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 diff --git a/gcc/ChangeLog b/gcc/ChangeLog index aea7143dc91..03667c8d97f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2019-01-14 Andi Kleen + + * Makefile.in: Lower autofdo sampling rate by 10x. + * Makefile.tpl: Dito. + 2019-01-14 Tom Honermann * defaults.h: Define CHAR8_TYPE. -- 2.30.2