1 /* $NetBSD: uvm_stat.c,v 1.38 2016/12/01 01:59:17 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Charles D. Cranor and Washington University. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * from: Id: uvm_stat.c,v 1.1.2.3 1997/12/19 15:01:00 mrg Exp 28 */ 29 30 /* 31 * uvm_stat.c 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: uvm_stat.c,v 1.38 2016/12/01 01:59:17 mrg Exp $"); 36 37 #include "opt_readahead.h" 38 #include "opt_ddb.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/cpu.h> 43 44 #include <uvm/uvm.h> 45 #include <uvm/uvm_ddb.h> 46 47 #ifdef DDB 48 49 /* 50 * uvmexp_print: ddb hook to print interesting uvm counters 51 */ 52 void 53 uvmexp_print(void (*pr)(const char *, ...) 54 __attribute__((__format__(__printf__,1,2)))) 55 { 56 int active, inactive; 57 CPU_INFO_ITERATOR cii; 58 struct cpu_info *ci; 59 60 uvm_estimatepageable(&active, &inactive); 61 62 (*pr)("Current UVM status:\n"); 63 (*pr)(" pagesize=%d (0x%x), pagemask=0x%x, pageshift=%d, ncolors=%d\n", 64 uvmexp.pagesize, uvmexp.pagesize, uvmexp.pagemask, 65 uvmexp.pageshift, uvmexp.ncolors); 66 (*pr)(" %d VM pages: %d active, %d inactive, %d wired, %d free\n", 67 uvmexp.npages, active, inactive, uvmexp.wired, 68 uvmexp.free); 69 (*pr)(" pages %d anon, %d file, %d exec\n", 70 uvmexp.anonpages, uvmexp.filepages, uvmexp.execpages); 71 (*pr)(" freemin=%d, free-target=%d, wired-max=%d\n", 72 uvmexp.freemin, uvmexp.freetarg, uvmexp.wiredmax); 73 (*pr)(" resv-pg=%d, resv-kernel=%d, zeropages=%d\n", 74 uvmexp.reserve_pagedaemon, uvmexp.reserve_kernel, uvmexp.zeropages); 75 76 for (CPU_INFO_FOREACH(cii, ci)) { 77 (*pr)(" cpu%u:\n", cpu_index(ci)); 78 (*pr)(" faults=%" PRIu64 ", traps=%" PRIu64 ", " 79 "intrs=%" PRIu64 ", ctxswitch=%" PRIu64 "\n", 80 ci->ci_data.cpu_nfault, ci->ci_data.cpu_ntrap, 81 ci->ci_data.cpu_nintr, ci->ci_data.cpu_nswtch); 82 (*pr)(" softint=%" PRIu64 ", syscalls=%" PRIu64 "\n", 83 ci->ci_data.cpu_nsoft, ci->ci_data.cpu_nsyscall); 84 } 85 86 (*pr)(" fault counts:\n"); 87 (*pr)(" noram=%d, noanon=%d, pgwait=%d, pgrele=%d\n", 88 uvmexp.fltnoram, uvmexp.fltnoanon, uvmexp.fltpgwait, 89 uvmexp.fltpgrele); 90 (*pr)(" ok relocks(total)=%d(%d), anget(retrys)=%d(%d), " 91 "amapcopy=%d\n", uvmexp.fltrelckok, uvmexp.fltrelck, 92 uvmexp.fltanget, uvmexp.fltanretry, uvmexp.fltamcopy); 93 (*pr)(" neighbor anon/obj pg=%d/%d, gets(lock/unlock)=%d/%d\n", 94 uvmexp.fltnamap, uvmexp.fltnomap, uvmexp.fltlget, uvmexp.fltget); 95 (*pr)(" cases: anon=%d, anoncow=%d, obj=%d, prcopy=%d, przero=%d\n", 96 uvmexp.flt_anon, uvmexp.flt_acow, uvmexp.flt_obj, uvmexp.flt_prcopy, 97 uvmexp.flt_przero); 98 99 (*pr)(" daemon and swap counts:\n"); 100 (*pr)(" woke=%d, revs=%d, scans=%d, obscans=%d, anscans=%d\n", 101 uvmexp.pdwoke, uvmexp.pdrevs, uvmexp.pdscans, uvmexp.pdobscan, 102 uvmexp.pdanscan); 103 (*pr)(" busy=%d, freed=%d, reactivate=%d, deactivate=%d\n", 104 uvmexp.pdbusy, uvmexp.pdfreed, uvmexp.pdreact, uvmexp.pddeact); 105 (*pr)(" pageouts=%d, pending=%d, nswget=%d\n", uvmexp.pdpageouts, 106 uvmexp.pdpending, uvmexp.nswget); 107 (*pr)(" nswapdev=%d, swpgavail=%d\n", 108 uvmexp.nswapdev, uvmexp.swpgavail); 109 (*pr)(" swpages=%d, swpginuse=%d, swpgonly=%d, paging=%d\n", 110 uvmexp.swpages, uvmexp.swpginuse, uvmexp.swpgonly, uvmexp.paging); 111 } 112 #endif 113 114 #if defined(READAHEAD_STATS) 115 116 #define UVM_RA_EVCNT_DEFINE(name) \ 117 struct evcnt uvm_ra_##name = \ 118 EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "readahead", #name); \ 119 EVCNT_ATTACH_STATIC(uvm_ra_##name); 120 121 UVM_RA_EVCNT_DEFINE(total); 122 UVM_RA_EVCNT_DEFINE(hit); 123 UVM_RA_EVCNT_DEFINE(miss); 124 125 #endif /* defined(READAHEAD_STATS) */ 126