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PA: Use an SEC in fron of the HPA shard.

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This commit is contained in:
David Goldblatt
2020-10-16 13:14:59 -07:00
committed by David Goldblatt
parent ea51e97bb8
commit 6599651aee
15 changed files with 141 additions and 41 deletions
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30
src/jemalloc.c
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@@ -141,6 +141,11 @@ size_t opt_hpa_slab_max_alloc = 256 * 1024;
size_t opt_hpa_small_max = 32 * 1024;
size_t opt_hpa_large_min = 4 * 1024 * 1024;
size_t opt_hpa_sec_max_alloc = 32 * 1024;
/* These settings correspond to a maximum of 1MB cached per arena. */
size_t opt_hpa_sec_max_bytes = 256 * 1024;
size_t opt_hpa_sec_nshards = 4;
/*
* Arenas that are used to service external requests. Not all elements of the
* arenas array are necessarily used; arenas are created lazily as needed.
@@ -1494,11 +1499,18 @@ malloc_conf_init_helper(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS],
true)
CONF_HANDLE_SIZE_T(opt_hpa_slab_max_alloc,
"hpa_slab_max_alloc", PAGE, 512 * PAGE,
CONF_CHECK_MIN, CONF_CHECK_MAX, true)
CONF_CHECK_MIN, CONF_CHECK_MAX, true);
CONF_HANDLE_SIZE_T(opt_hpa_small_max, "hpa_small_max",
PAGE, 0, CONF_CHECK_MIN, CONF_DONT_CHECK_MAX, true)
PAGE, 0, CONF_CHECK_MIN, CONF_DONT_CHECK_MAX, true);
CONF_HANDLE_SIZE_T(opt_hpa_large_min, "hpa_large_min",
PAGE, 0, CONF_CHECK_MIN, CONF_DONT_CHECK_MAX, true)
PAGE, 0, CONF_CHECK_MIN, CONF_DONT_CHECK_MAX, true);
CONF_HANDLE_SIZE_T(opt_hpa_sec_max_alloc, "hpa_sec_max_alloc",
PAGE, 0, CONF_CHECK_MIN, CONF_DONT_CHECK_MAX, true);
CONF_HANDLE_SIZE_T(opt_hpa_sec_max_bytes, "hpa_sec_max_bytes",
PAGE, 0, CONF_CHECK_MIN, CONF_DONT_CHECK_MAX, true);
CONF_HANDLE_SIZE_T(opt_hpa_sec_nshards, "hpa_sec_nshards",
0, 0, CONF_CHECK_MIN, CONF_DONT_CHECK_MAX, true);
if (CONF_MATCH("slab_sizes")) {
if (CONF_MATCH_VALUE("default")) {
@@ -1808,7 +1820,8 @@ malloc_init_hard_a0_locked() {
}
if (pa_shard_enable_hpa(&a0->pa_shard, &arena_hpa_global,
opt_hpa_slab_goal, opt_hpa_slab_max_alloc,
opt_hpa_small_max, opt_hpa_large_min)) {
opt_hpa_small_max, opt_hpa_large_min, opt_hpa_sec_nshards,
opt_hpa_sec_max_alloc, opt_hpa_sec_max_bytes)) {
return true;
}
}
@@ -4226,7 +4239,7 @@ _malloc_prefork(void)
background_thread_prefork1(tsd_tsdn(tsd));
}
/* Break arena prefork into stages to preserve lock order. */
for (i = 0; i < 8; i++) {
for (i = 0; i < 9; i++) {
for (j = 0; j < narenas; j++) {
if ((arena = arena_get(tsd_tsdn(tsd), j, false)) !=
NULL) {
@@ -4255,12 +4268,15 @@ _malloc_prefork(void)
case 7:
arena_prefork7(tsd_tsdn(tsd), arena);
break;
case 8:
arena_prefork8(tsd_tsdn(tsd), arena);
break;
default: not_reached();
}
}
}
if (i == 3 && opt_hpa) {
hpa_prefork3(tsd_tsdn(tsd), &arena_hpa_global);
if (i == 4 && opt_hpa) {
hpa_prefork4(tsd_tsdn(tsd), &arena_hpa_global);
}
}