Merge branch 'dev'5.3.0master

1 files changed, 74 insertions, 0 deletions

diff --git a/include/jemalloc/internal/hpa_opts.h b/include/jemalloc/internal/hpa_opts.h
new file mode 100644
index 00000000..ee84fea1
--- /dev/null
+++ b/include/jemalloc/internal/hpa_opts.h
@@ -0,0 +1,74 @@
+#ifndef JEMALLOC_INTERNAL_HPA_OPTS_H
+#define JEMALLOC_INTERNAL_HPA_OPTS_H
+
+#include "jemalloc/internal/fxp.h"
+
+/*
+ * This file is morally part of hpa.h, but is split out for header-ordering
+ * reasons.
+ */
+
+typedef struct hpa_shard_opts_s hpa_shard_opts_t;
+struct hpa_shard_opts_s {
+	/*
+	 * The largest size we'll allocate out of the shard.  For those
+	 * allocations refused, the caller (in practice, the PA module) will
+	 * fall back to the more general (for now) PAC, which can always handle
+	 * any allocation request.
+	 */
+	size_t slab_max_alloc;
+
+	/*
+	 * When the number of active bytes in a hugepage is >=
+	 * hugification_threshold, we force hugify it.
+	 */
+	size_t hugification_threshold;
+
+	/*
+	 * The HPA purges whenever the number of pages exceeds dirty_mult *
+	 * active_pages.  This may be set to (fxp_t)-1 to disable purging.
+	 */
+	fxp_t dirty_mult;
+
+	/*
+	 * Whether or not the PAI methods are allowed to defer work to a
+	 * subsequent hpa_shard_do_deferred_work() call.  Practically, this
+	 * corresponds to background threads being enabled.  We track this
+	 * ourselves for encapsulation purposes.
+	 */
+	bool deferral_allowed;
+
+	/*
+	 * How long a hugepage has to be a hugification candidate before it will
+	 * actually get hugified.
+	 */
+	uint64_t hugify_delay_ms;
+
+	/*
+	 * Minimum amount of time between purges.
+	 */
+	uint64_t min_purge_interval_ms;
+};
+
+#define HPA_SHARD_OPTS_DEFAULT {					\
+	/* slab_max_alloc */						\
+	64 * 1024,							\
+	/* hugification_threshold */					\
+	HUGEPAGE * 95 / 100,						\
+	/* dirty_mult */						\
+	FXP_INIT_PERCENT(25),						\
+	/*								\
+	 * deferral_allowed						\
+	 * 								\
+	 * Really, this is always set by the arena during creation	\
+	 * or by an hpa_shard_set_deferral_allowed call, so the value	\
+	 * we put here doesn't matter.					\
+	 */								\
+	false,								\
+	/* hugify_delay_ms */						\
+	10 * 1000,							\
+	/* min_purge_interval_ms */					\
+	5 * 1000							\
+}
+
+#endif /* JEMALLOC_INTERNAL_HPA_OPTS_H */