Experimental Profiler: tweak type info threshold.

src/flag-definitions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 198 matching lines @@
             "call recompile stub directly when self-optimizing")
 DEFINE_bool(retry_self_opt, false, "re-try self-optimization if it failed")
 DEFINE_bool(count_based_interrupts, false,
             "trigger profiler ticks based on counting instead of timing")
 DEFINE_bool(interrupt_at_exit, false,
             "insert an interrupt check at function exit")
 DEFINE_bool(weighted_back_edges, false,
             "weight back edges by jump distance for interrupt triggering")
 DEFINE_int(interrupt_budget, 5900,
            "execution budget before interrupt is triggered")
-DEFINE_int(type_info_threshold, 40,
+DEFINE_int(type_info_threshold, 15,
            "percentage of ICs that must have type info to allow optimization")
 DEFINE_int(self_opt_count, 130, "call count before self-optimization")
 
 DEFINE_implication(experimental_profiler, watch_ic_patching)
 DEFINE_implication(experimental_profiler, self_optimization)
 // Not implying direct_self_opt here because it seems to be a bad idea.
 DEFINE_implication(experimental_profiler, retry_self_opt)
 DEFINE_implication(experimental_profiler, count_based_interrupts)
 DEFINE_implication(experimental_profiler, interrupt_at_exit)
 DEFINE_implication(experimental_profiler, weighted_back_edges)
@@ skipping 408 matching lines @@
 #undef DEFINE_bool
 #undef DEFINE_int
 #undef DEFINE_string
 #undef DEFINE_implication
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META
 #undef FLAG_MODE_DEFINE_IMPLICATIONS