| 1 | /* $NetBSD: uvm_stat.c,v 1.37 2011/05/17 04:18:07 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 1.37 2011/05/17 04:18:07 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\n, ncolors=%d" , |
| 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 | |
| 74 | for (CPU_INFO_FOREACH(cii, ci)) { |
| 75 | (*pr)(" cpu%u:\n" , cpu_index(ci)); |
| 76 | (*pr)(" faults=%" PRIu64 ", traps=%" PRIu64 ", " |
| 77 | "intrs=%" PRIu64 ", ctxswitch=%" PRIu64 "\n" , |
| 78 | ci->ci_data.cpu_nfault, ci->ci_data.cpu_ntrap, |
| 79 | ci->ci_data.cpu_nintr, ci->ci_data.cpu_nswtch); |
| 80 | (*pr)(" softint=%" PRIu64 ", syscalls=%" PRIu64 "\n" , |
| 81 | ci->ci_data.cpu_nsoft, ci->ci_data.cpu_nsyscall); |
| 82 | } |
| 83 | |
| 84 | (*pr)(" fault counts:\n" ); |
| 85 | (*pr)(" noram=%d, noanon=%d, pgwait=%d, pgrele=%d\n" , |
| 86 | uvmexp.fltnoram, uvmexp.fltnoanon, uvmexp.fltpgwait, |
| 87 | uvmexp.fltpgrele); |
| 88 | (*pr)(" ok relocks(total)=%d(%d), anget(retrys)=%d(%d), " |
| 89 | "amapcopy=%d\n" , uvmexp.fltrelckok, uvmexp.fltrelck, |
| 90 | uvmexp.fltanget, uvmexp.fltanretry, uvmexp.fltamcopy); |
| 91 | (*pr)(" neighbor anon/obj pg=%d/%d, gets(lock/unlock)=%d/%d\n" , |
| 92 | uvmexp.fltnamap, uvmexp.fltnomap, uvmexp.fltlget, uvmexp.fltget); |
| 93 | (*pr)(" cases: anon=%d, anoncow=%d, obj=%d, prcopy=%d, przero=%d\n" , |
| 94 | uvmexp.flt_anon, uvmexp.flt_acow, uvmexp.flt_obj, uvmexp.flt_prcopy, |
| 95 | uvmexp.flt_przero); |
| 96 | |
| 97 | (*pr)(" daemon and swap counts:\n" ); |
| 98 | (*pr)(" woke=%d, revs=%d, scans=%d, obscans=%d, anscans=%d\n" , |
| 99 | uvmexp.pdwoke, uvmexp.pdrevs, uvmexp.pdscans, uvmexp.pdobscan, |
| 100 | uvmexp.pdanscan); |
| 101 | (*pr)(" busy=%d, freed=%d, reactivate=%d, deactivate=%d\n" , |
| 102 | uvmexp.pdbusy, uvmexp.pdfreed, uvmexp.pdreact, uvmexp.pddeact); |
| 103 | (*pr)(" pageouts=%d, pending=%d, nswget=%d\n" , uvmexp.pdpageouts, |
| 104 | uvmexp.pdpending, uvmexp.nswget); |
| 105 | (*pr)(" nswapdev=%d, swpgavail=%d\n" , |
| 106 | uvmexp.nswapdev, uvmexp.swpgavail); |
| 107 | (*pr)(" swpages=%d, swpginuse=%d, swpgonly=%d, paging=%d\n" , |
| 108 | uvmexp.swpages, uvmexp.swpginuse, uvmexp.swpgonly, uvmexp.paging); |
| 109 | } |
| 110 | #endif |
| 111 | |
| 112 | #if defined(READAHEAD_STATS) |
| 113 | |
| 114 | #define UVM_RA_EVCNT_DEFINE(name) \ |
| 115 | struct evcnt uvm_ra_##name = \ |
| 116 | EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "readahead", #name); \ |
| 117 | EVCNT_ATTACH_STATIC(uvm_ra_##name); |
| 118 | |
| 119 | UVM_RA_EVCNT_DEFINE(total); |
| 120 | UVM_RA_EVCNT_DEFINE(hit); |
| 121 | UVM_RA_EVCNT_DEFINE(miss); |
| 122 | |
| 123 | #endif /* defined(READAHEAD_STATS) */ |
| 124 | |