1147997Srwatson/*- 2147997Srwatson * Copyright (c) 2005 Robert N. M. Watson 3147997Srwatson * All rights reserved. 4147997Srwatson * 5147997Srwatson * Redistribution and use in source and binary forms, with or without 6147997Srwatson * modification, are permitted provided that the following conditions 7147997Srwatson * are met: 8147997Srwatson * 1. Redistributions of source code must retain the above copyright 9147997Srwatson * notice, this list of conditions and the following disclaimer. 10147997Srwatson * 2. Redistributions in binary form must reproduce the above copyright 11147997Srwatson * notice, this list of conditions and the following disclaimer in the 12147997Srwatson * documentation and/or other materials provided with the distribution. 13147997Srwatson * 14147997Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15147997Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16147997Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17147997Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18147997Srwatson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19147997Srwatson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20147997Srwatson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21147997Srwatson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22147997Srwatson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23147997Srwatson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24147997Srwatson * SUCH DAMAGE. 25147997Srwatson * 26147997Srwatson * $FreeBSD: releng/10.3/lib/libmemstat/memstat_internal.h 224569 2011-08-01 09:43:35Z pluknet $ 27147997Srwatson */ 28147997Srwatson 29147997Srwatson#ifndef _MEMSTAT_INTERNAL_H_ 30147997Srwatson#define _MEMSTAT_INTERNAL_H_ 31147997Srwatson 32147997Srwatson/* 33147997Srwatson * memstat maintains its own internal notion of statistics on each memory 34147997Srwatson * type, common across UMA and kernel malloc. Some fields are straight from 35147997Srwatson * the allocator statistics, others are derived when extracted from the 36147997Srwatson * kernel. A struct memory_type will describe each type supported by an 37147997Srwatson * allocator. memory_type structures can be chained into lists. 38147997Srwatson */ 39147997Srwatsonstruct memory_type { 40147997Srwatson /* 41147997Srwatson * Static properties of type. 42147997Srwatson */ 43147997Srwatson int mt_allocator; /* malloc(9), uma(9), etc. */ 44147997Srwatson char mt_name[MEMTYPE_MAXNAME]; /* name of memory type. */ 45147997Srwatson 46147997Srwatson /* 47147997Srwatson * (Relatively) static zone settings, that don't uniquely identify 48147997Srwatson * the zone, but also don't change much. 49147997Srwatson */ 50147997Srwatson uint64_t mt_countlimit; /* 0, or maximum allocations. */ 51147997Srwatson uint64_t mt_byteslimit; /* 0, or maximum bytes. */ 52147997Srwatson uint64_t mt_sizemask; /* malloc: allocated size bitmask. */ 53147997Srwatson uint64_t mt_size; /* uma: size of objects. */ 54147997Srwatson 55147997Srwatson /* 56147997Srwatson * Zone or type information that includes all caches and any central 57147997Srwatson * zone state. Depending on the allocator, this may be synthesized 58147997Srwatson * from several sources, or directly measured. 59147997Srwatson */ 60147997Srwatson uint64_t mt_memalloced; /* Bytes allocated over life time. */ 61147997Srwatson uint64_t mt_memfreed; /* Bytes freed over life time. */ 62147997Srwatson uint64_t mt_numallocs; /* Allocations over life time. */ 63147997Srwatson uint64_t mt_numfrees; /* Frees over life time. */ 64147997Srwatson uint64_t mt_bytes; /* Bytes currently allocated. */ 65147997Srwatson uint64_t mt_count; /* Number of current allocations. */ 66147997Srwatson uint64_t mt_free; /* Number of cached free items. */ 67147997Srwatson uint64_t mt_failures; /* Number of allocation failures. */ 68209215Ssbruno uint64_t mt_sleeps; /* Number of allocation sleeps. */ 69147997Srwatson 70147997Srwatson /* 71147997Srwatson * Caller-owned memory. 72147997Srwatson */ 73148041Srwatson void *mt_caller_pointer[MEMSTAT_MAXCALLER]; /* Pointers. */ 74148041Srwatson uint64_t mt_caller_uint64[MEMSTAT_MAXCALLER]; /* Integers. */ 75147997Srwatson 76147997Srwatson /* 77147997Srwatson * For allocators making use of per-CPU caches, we also provide raw 78147997Srwatson * statistics from the central allocator and each per-CPU cache, 79147997Srwatson * which (combined) sometimes make up the above general statistics. 80147997Srwatson * 81147997Srwatson * First, central zone/type state, all numbers excluding any items 82147997Srwatson * cached in per-CPU caches. 83147997Srwatson * 84147997Srwatson * XXXRW: Might be desirable to separately expose allocation stats 85147997Srwatson * from zone, which should (combined with per-cpu) add up to the 86147997Srwatson * global stats above. 87147997Srwatson */ 88147997Srwatson uint64_t mt_zonefree; /* Free items in zone. */ 89148170Srwatson uint64_t mt_kegfree; /* Free items in keg. */ 90147997Srwatson 91147997Srwatson /* 92147997Srwatson * Per-CPU measurements fall into two categories: per-CPU allocation, 93147997Srwatson * and per-CPU cache state. 94147997Srwatson */ 95224569Spluknet struct mt_percpu_alloc_s { 96147997Srwatson uint64_t mtp_memalloced;/* Per-CPU mt_memalloced. */ 97147997Srwatson uint64_t mtp_memfreed; /* Per-CPU mt_memfreed. */ 98147997Srwatson uint64_t mtp_numallocs; /* Per-CPU mt_numallocs. */ 99147997Srwatson uint64_t mtp_numfrees; /* Per-CPU mt_numfrees. */ 100147997Srwatson uint64_t mtp_sizemask; /* Per-CPU mt_sizemask. */ 101148041Srwatson void *mtp_caller_pointer[MEMSTAT_MAXCALLER]; 102148041Srwatson uint64_t mtp_caller_uint64[MEMSTAT_MAXCALLER]; 103224569Spluknet } *mt_percpu_alloc; 104147997Srwatson 105224569Spluknet struct mt_percpu_cache_s { 106147997Srwatson uint64_t mtp_free; /* Per-CPU cache free items. */ 107224569Spluknet } *mt_percpu_cache; 108147997Srwatson 109147997Srwatson LIST_ENTRY(memory_type) mt_list; /* List of types. */ 110147997Srwatson}; 111147997Srwatson 112147997Srwatson/* 113147997Srwatson * Description of struct memory_type_list is in memstat.h. 114147997Srwatson */ 115148357Srwatsonstruct memory_type_list { 116148357Srwatson LIST_HEAD(, memory_type) mtl_list; 117148357Srwatson int mtl_error; 118148357Srwatson}; 119147997Srwatson 120148619Srwatsonvoid _memstat_mtl_empty(struct memory_type_list *list); 121148354Srwatsonstruct memory_type *_memstat_mt_allocate(struct memory_type_list *list, 122224569Spluknet int allocator, const char *name, int maxcpus); 123224569Spluknetvoid _memstat_mt_reset_stats(struct memory_type *mtp, 124224569Spluknet int maxcpus); 125147997Srwatson 126147997Srwatson#endif /* !_MEMSTAT_INTERNAL_H_ */ 127