From: Julian Seward <jseward@acm.org>
Date: Thu, 1 Jun 2017 05:46:54 +0000 (+0000)
Subject: Back out r16414 (Enable fair scheduling by default on Linux.) following
X-Git-Tag: VALGRIND_3_14_0~331
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd35201b869c184eec7ff0a9dc9a99ddf5819753;p=thirdparty%2Fvalgrind.git

Back out r16414 (Enable fair scheduling by default on Linux.) following
further investigations showing large performance losses in some case, and no
obvious way to fix the problem.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16428
---

diff --git a/coregrind/m_options.c b/coregrind/m_options.c
index 5f33471e60..1bf2cc02e8 100644
--- a/coregrind/m_options.c
+++ b/coregrind/m_options.c
@@ -105,13 +105,8 @@ Bool   VG_(clo_debug_dump_syms) = False;
 Bool   VG_(clo_debug_dump_line) = False;
 Bool   VG_(clo_debug_dump_frames) = False;
 Bool   VG_(clo_trace_redir)    = False;
-
-#if defined(VGO_linux)
-enum FairSchedType VG_(clo_fair_sched) = enable_fair_sched;
-#else
-enum FairSchedType VG_(clo_fair_sched) = disable_fair_sched;
-#endif
-
+enum FairSchedType
+       VG_(clo_fair_sched)     = disable_fair_sched;
 Bool   VG_(clo_trace_sched)    = False;
 Bool   VG_(clo_profile_heap)   = False;
 Int    VG_(clo_core_redzone_size) = CORE_REDZONE_DEFAULT_SZB;