157 lines
5.7 KiB
C
157 lines
5.7 KiB
C
/* $NetBSD: uvm_stat.c,v 1.46 2020/06/14 21:41:42 ad Exp $ */
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/*
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* Copyright (c) 1997 Charles D. Cranor and Washington University.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* from: Id: uvm_stat.c,v 1.1.2.3 1997/12/19 15:01:00 mrg Exp
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*/
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/*
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* uvm_stat.c
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: uvm_stat.c,v 1.46 2020/06/14 21:41:42 ad Exp $");
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#include "opt_readahead.h"
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#include "opt_ddb.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/cpu.h>
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#include <uvm/uvm.h>
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#include <uvm/uvm_ddb.h>
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#ifdef DDB
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#include <sys/pool.h>
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/*
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* uvmexp_print: ddb hook to print interesting uvm counters
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*/
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void
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uvmexp_print(void (*pr)(const char *, ...)
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__attribute__((__format__(__printf__,1,2))))
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{
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int64_t anonpg, execpg, filepg;
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int active, inactive;
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int poolpages, freepg;
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uvm_estimatepageable(&active, &inactive);
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poolpages = pool_totalpages_locked();
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/* this will sync all counters. */
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freepg = uvm_availmem(false);
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anonpg = cpu_count_get(CPU_COUNT_ANONCLEAN) +
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cpu_count_get(CPU_COUNT_ANONDIRTY) +
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cpu_count_get(CPU_COUNT_ANONUNKNOWN);
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execpg = cpu_count_get(CPU_COUNT_EXECPAGES);
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filepg = cpu_count_get(CPU_COUNT_FILECLEAN) +
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cpu_count_get(CPU_COUNT_FILEDIRTY) +
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cpu_count_get(CPU_COUNT_FILEUNKNOWN) -
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execpg;
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(*pr)("Current UVM status:\n");
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(*pr)(" pagesize=%d (0x%x), pagemask=0x%x, pageshift=%d, ncolors=%d\n",
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uvmexp.pagesize, uvmexp.pagesize, uvmexp.pagemask,
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uvmexp.pageshift, uvmexp.ncolors);
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(*pr)(" %d VM pages: %d active, %d inactive, %d wired, %d free\n",
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uvmexp.npages, active, inactive, uvmexp.wired, freepg);
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(*pr)(" pages %" PRId64 " anon, %" PRId64 " file, %" PRId64 " exec\n",
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anonpg, filepg, execpg);
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(*pr)(" freemin=%d, free-target=%d, wired-max=%d\n",
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uvmexp.freemin, uvmexp.freetarg, uvmexp.wiredmax);
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(*pr)(" resv-pg=%d, resv-kernel=%d\n",
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uvmexp.reserve_pagedaemon, uvmexp.reserve_kernel);
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(*pr)(" bootpages=%d, poolpages=%d\n",
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uvmexp.bootpages, poolpages);
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(*pr)(" faults=%" PRId64 ", traps=%" PRId64 ", "
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"intrs=%" PRId64 ", ctxswitch=%" PRId64 "\n",
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cpu_count_get(CPU_COUNT_NFAULT),
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cpu_count_get(CPU_COUNT_NTRAP),
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cpu_count_get(CPU_COUNT_NINTR),
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cpu_count_get(CPU_COUNT_NSWTCH));
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(*pr)(" softint=%" PRId64 ", syscalls=%" PRId64 "\n",
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cpu_count_get(CPU_COUNT_NSOFT),
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cpu_count_get(CPU_COUNT_NSYSCALL));
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(*pr)(" fault counts:\n");
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(*pr)(" noram=%" PRId64 ", noanon=%" PRId64 ", pgwait=%" PRId64
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", pgrele=%" PRId64 "\n",
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cpu_count_get(CPU_COUNT_FLTNORAM),
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cpu_count_get(CPU_COUNT_FLTNOANON),
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cpu_count_get(CPU_COUNT_FLTPGWAIT),
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cpu_count_get(CPU_COUNT_FLTPGRELE));
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(*pr)(" ok relocks(total)=%" PRId64 "(%" PRId64 "), "
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"anget(retrys)=%" PRId64 "(%" PRId64 "), amapcopy=%" PRId64 "\n",
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cpu_count_get(CPU_COUNT_FLTRELCKOK),
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cpu_count_get(CPU_COUNT_FLTRELCK),
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cpu_count_get(CPU_COUNT_FLTANGET),
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cpu_count_get(CPU_COUNT_FLTANRETRY),
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cpu_count_get(CPU_COUNT_FLTAMCOPY));
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(*pr)(" neighbor anon/obj pg=%" PRId64 "/%" PRId64
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", gets(lock/unlock)=%" PRId64 "/%" PRId64 "\n",
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cpu_count_get(CPU_COUNT_FLTNAMAP),
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cpu_count_get(CPU_COUNT_FLTNOMAP),
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cpu_count_get(CPU_COUNT_FLTLGET),
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cpu_count_get(CPU_COUNT_FLTGET));
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(*pr)(" cases: anon=%" PRId64 ", anoncow=%" PRId64 ", obj=%" PRId64
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", prcopy=%" PRId64 ", przero=%" PRId64 "\n",
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cpu_count_get(CPU_COUNT_FLT_ANON),
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cpu_count_get(CPU_COUNT_FLT_ACOW),
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cpu_count_get(CPU_COUNT_FLT_OBJ),
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cpu_count_get(CPU_COUNT_FLT_PRCOPY),
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cpu_count_get(CPU_COUNT_FLT_PRZERO));
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(*pr)(" daemon and swap counts:\n");
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(*pr)(" woke=%d, revs=%d, scans=%d, obscans=%d, anscans=%d\n",
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uvmexp.pdwoke, uvmexp.pdrevs, uvmexp.pdscans, uvmexp.pdobscan,
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uvmexp.pdanscan);
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(*pr)(" busy=%d, freed=%d, reactivate=%d, deactivate=%d\n",
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uvmexp.pdbusy, uvmexp.pdfreed, uvmexp.pdreact, uvmexp.pddeact);
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(*pr)(" pageouts=%d, pending=%d, nswget=%d\n", uvmexp.pdpageouts,
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uvmexp.pdpending, uvmexp.nswget);
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(*pr)(" nswapdev=%d, swpgavail=%d\n",
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uvmexp.nswapdev, uvmexp.swpgavail);
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(*pr)(" swpages=%d, swpginuse=%d, swpgonly=%d, paging=%d\n",
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uvmexp.swpages, uvmexp.swpginuse, uvmexp.swpgonly, uvmexp.paging);
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}
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#endif
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#if defined(READAHEAD_STATS)
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#define UVM_RA_EVCNT_DEFINE(name) \
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struct evcnt uvm_ra_##name = \
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EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "readahead", #name); \
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EVCNT_ATTACH_STATIC(uvm_ra_##name);
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UVM_RA_EVCNT_DEFINE(total);
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UVM_RA_EVCNT_DEFINE(hit);
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UVM_RA_EVCNT_DEFINE(miss);
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#endif /* defined(READAHEAD_STATS) */
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