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Implement process_madvise support.

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Add opt.process_madvise_max_batch which determines if process_madvise is enabled
(non-zero) and the max # of regions in each batch.  Added another limiting
factor which is the space to reserve on stack, which results in the max batch of
128.
This commit is contained in:
Qi Wang
2025-02-04 18:31:11 -08:00
committed by Qi Wang
parent 70f019cd3a
commit 22440a0207
13 changed files with 204 additions and 6 deletions
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4
src/ctl.c
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@@ -169,6 +169,7 @@ CTL_PROTO(opt_prof_time_res)
CTL_PROTO(opt_lg_san_uaf_align)
CTL_PROTO(opt_zero_realloc)
CTL_PROTO(opt_limit_usize_gap)
CTL_PROTO(opt_process_madvise_max_batch)
CTL_PROTO(opt_malloc_conf_symlink)
CTL_PROTO(opt_malloc_conf_env_var)
CTL_PROTO(opt_malloc_conf_global_var)
@@ -559,6 +560,7 @@ static const ctl_named_node_t opt_node[] = {
{NAME("debug_double_free_max_scan"),
CTL(opt_debug_double_free_max_scan)},
{NAME("limit_usize_gap"), CTL(opt_limit_usize_gap)},
{NAME("process_madvise_max_batch"), CTL(opt_process_madvise_max_batch)},
{NAME("malloc_conf"), CHILD(named, opt_malloc_conf)}
};
@@ -2316,6 +2318,8 @@ CTL_RO_NL_GEN(opt_lg_tcache_flush_large_div, opt_lg_tcache_flush_large_div,
CTL_RO_NL_GEN(opt_thp, thp_mode_names[opt_thp], const char *)
CTL_RO_NL_GEN(opt_lg_extent_max_active_fit, opt_lg_extent_max_active_fit,
size_t)
CTL_RO_NL_GEN(opt_process_madvise_max_batch, opt_process_madvise_max_batch,
size_t)
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_NL_CGEN(config_prof, opt_prof_active, opt_prof_active, bool)