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Remove the opt.lg_prof_bt_max option.

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Remove opt.lg_prof_bt_max, and hard code it to 7.  The original
intention of this option was to enable faster backtracing by limiting
backtrace depth.  However, this makes graphical pprof output very
difficult to interpret.  In practice, decreasing sampling frequency is a
better mechanism for limiting profiling overhead.
This commit is contained in:
Jason Evans
2012-02-13 18:23:41 -08:00
parent 0b526ff94d
commit 5389146191
6 changed files with 18 additions and 61 deletions
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3
src/ctl.c
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@@ -74,7 +74,6 @@ CTL_PROTO(opt_lg_tcache_gc_sweep)
CTL_PROTO(opt_prof)
CTL_PROTO(opt_prof_prefix)
CTL_PROTO(opt_prof_active)
CTL_PROTO(opt_lg_prof_bt_max)
CTL_PROTO(opt_lg_prof_sample)
CTL_PROTO(opt_lg_prof_interval)
CTL_PROTO(opt_prof_gdump)
@@ -216,7 +215,6 @@ static const ctl_node_t opt_node[] = {
{NAME("prof"), CTL(opt_prof)},
{NAME("prof_prefix"), CTL(opt_prof_prefix)},
{NAME("prof_active"), CTL(opt_prof_active)},
{NAME("lg_prof_bt_max"), CTL(opt_lg_prof_bt_max)},
{NAME("lg_prof_sample"), CTL(opt_lg_prof_sample)},
{NAME("lg_prof_interval"), CTL(opt_lg_prof_interval)},
{NAME("prof_gdump"), CTL(opt_prof_gdump)},
@@ -1125,7 +1123,6 @@ CTL_RO_NL_CGEN(config_tcache, opt_lg_tcache_gc_sweep, opt_lg_tcache_gc_sweep,
CTL_RO_NL_CGEN(config_prof, opt_prof, opt_prof, bool)
CTL_RO_NL_CGEN(config_prof, opt_prof_prefix, opt_prof_prefix, const char *)
CTL_RO_CGEN(config_prof, opt_prof_active, opt_prof_active, bool) /* Mutable. */
CTL_RO_NL_CGEN(config_prof, opt_lg_prof_bt_max, opt_lg_prof_bt_max, size_t)
CTL_RO_NL_CGEN(config_prof, opt_lg_prof_sample, opt_lg_prof_sample, size_t)
CTL_RO_NL_CGEN(config_prof, opt_lg_prof_interval, opt_lg_prof_interval, ssize_t)
CTL_RO_NL_CGEN(config_prof, opt_prof_gdump, opt_prof_gdump, bool)