266 lines
7.6 KiB
C
266 lines
7.6 KiB
C
/* $NetBSD: uvm_stat.c,v 1.22 2001/12/09 03:07:20 chs Exp $ */
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/*
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles D. Cranor and
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* Washington University.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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 1.22 2001/12/09 03:07:20 chs Exp $");
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#include "opt_uvmhist.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 <uvm/uvm.h>
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#include <uvm/uvm_ddb.h>
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/*
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* globals
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*/
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struct uvm_cnt *uvm_cnt_head = NULL;
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#ifdef UVMHIST
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struct uvm_history_head uvm_histories;
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#endif
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#ifdef UVMHIST_PRINT
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int uvmhist_print_enabled = 1;
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#endif
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#ifdef DDB
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/*
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* prototypes
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*/
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#ifdef UVMHIST
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void uvmhist_dump __P((struct uvm_history *));
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void uvm_hist __P((u_int32_t));
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static void uvmhist_dump_histories __P((struct uvm_history *[]));
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#endif
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void uvmcnt_dump __P((void));
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#ifdef UVMHIST
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/* call this from ddb */
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void
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uvmhist_dump(l)
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struct uvm_history *l;
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{
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int lcv, s;
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s = splhigh();
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lcv = l->f;
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do {
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if (l->e[lcv].fmt)
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uvmhist_print(&l->e[lcv]);
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lcv = (lcv + 1) % l->n;
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} while (lcv != l->f);
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splx(s);
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}
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/*
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* print a merged list of uvm_history structures
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*/
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static void
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uvmhist_dump_histories(hists)
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struct uvm_history *hists[];
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{
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struct timeval tv;
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int cur[MAXHISTS];
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int s, lcv, hi;
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/* so we don't get corrupted lists! */
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s = splhigh();
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/* find the first of each list */
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for (lcv = 0; hists[lcv]; lcv++)
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cur[lcv] = hists[lcv]->f;
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/*
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* here we loop "forever", finding the next earliest
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* history entry and printing it. cur[X] is the current
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* entry to test for the history in hists[X]. if it is
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* -1, then this history is finished.
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*/
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for (;;) {
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hi = -1;
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tv.tv_sec = tv.tv_usec = 0;
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/* loop over each history */
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for (lcv = 0; hists[lcv]; lcv++) {
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restart:
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if (cur[lcv] == -1)
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continue;
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/*
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* if the format is empty, go to the next entry
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* and retry.
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*/
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if (hists[lcv]->e[cur[lcv]].fmt == NULL) {
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cur[lcv] = (cur[lcv] + 1) % (hists[lcv]->n);
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if (cur[lcv] == hists[lcv]->f)
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cur[lcv] = -1;
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goto restart;
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}
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/*
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* if the time hasn't been set yet, or this entry is
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* earlier than the current tv, set the time and history
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* index.
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*/
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if (tv.tv_sec == 0 ||
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timercmp(&hists[lcv]->e[cur[lcv]].tv, &tv, <)) {
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tv = hists[lcv]->e[cur[lcv]].tv;
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hi = lcv;
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}
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}
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/* if we didn't find any entries, we must be done */
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if (hi == -1)
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break;
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/* print and move to the next entry */
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uvmhist_print(&hists[hi]->e[cur[hi]]);
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cur[hi] = (cur[hi] + 1) % (hists[hi]->n);
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if (cur[hi] == hists[hi]->f)
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cur[hi] = -1;
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}
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splx(s);
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}
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/*
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* call this from ddb. `bitmask' is from <uvm/uvm_stat.h>. it
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* merges the named histories.
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*/
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void
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uvm_hist(bitmask)
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u_int32_t bitmask; /* XXX only support 32 hists */
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{
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struct uvm_history *hists[MAXHISTS + 1];
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int i = 0;
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if ((bitmask & UVMHIST_MAPHIST) || bitmask == 0)
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hists[i++] = &maphist;
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if ((bitmask & UVMHIST_PDHIST) || bitmask == 0)
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hists[i++] = &pdhist;
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if ((bitmask & UVMHIST_UBCHIST) || bitmask == 0)
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hists[i++] = &ubchist;
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hists[i] = NULL;
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uvmhist_dump_histories(hists);
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}
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#endif /* UVMHIST */
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void
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uvmcnt_dump()
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{
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struct uvm_cnt *uvc = uvm_cnt_head;
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while (uvc) {
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if ((uvc->t & UVMCNT_MASK) != UVMCNT_CNT)
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continue;
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printf("%s = %d\n", uvc->name, uvc->c);
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uvc = uvc->next;
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}
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}
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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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{
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(*pr)("Current UVM status:\n");
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(*pr)(" pagesize=%d (0x%x), pagemask=0x%x, pageshift=%d\n",
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uvmexp.pagesize, uvmexp.pagesize, uvmexp.pagemask,
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uvmexp.pageshift);
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(*pr)(" %d VM pages: %d active, %d inactive, %d wired, %d free\n",
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uvmexp.npages, uvmexp.active, uvmexp.inactive, uvmexp.wired,
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uvmexp.free);
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(*pr)(" min %d%% (%d) anon, %d%% (%d) file, %d%% (%d) exec\n",
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uvmexp.anonminpct, uvmexp.anonmin, uvmexp.fileminpct,
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uvmexp.filemin, uvmexp.execminpct, uvmexp.execmin);
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(*pr)(" max %d%% (%d) anon, %d%% (%d) file, %d%% (%d) exec\n",
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uvmexp.anonmaxpct, uvmexp.anonmax, uvmexp.filemaxpct,
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uvmexp.filemax, uvmexp.execmaxpct, uvmexp.execmax);
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(*pr)(" pages %d anon, %d file, %d exec\n",
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uvmexp.anonpages, uvmexp.filepages, uvmexp.execpages);
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(*pr)(" freemin=%d, free-target=%d, inactive-target=%d, "
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"wired-max=%d\n", uvmexp.freemin, uvmexp.freetarg, uvmexp.inactarg,
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uvmexp.wiredmax);
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(*pr)(" faults=%d, traps=%d, intrs=%d, ctxswitch=%d\n",
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uvmexp.faults, uvmexp.traps, uvmexp.intrs, uvmexp.swtch);
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(*pr)(" softint=%d, syscalls=%d, swapins=%d, swapouts=%d\n",
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uvmexp.softs, uvmexp.syscalls, uvmexp.swapins, uvmexp.swapouts);
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(*pr)(" fault counts:\n");
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(*pr)(" noram=%d, noanon=%d, pgwait=%d, pgrele=%d\n",
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uvmexp.fltnoram, uvmexp.fltnoanon, uvmexp.fltpgwait,
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uvmexp.fltpgrele);
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(*pr)(" ok relocks(total)=%d(%d), anget(retrys)=%d(%d), "
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"amapcopy=%d\n", uvmexp.fltrelckok, uvmexp.fltrelck,
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uvmexp.fltanget, uvmexp.fltanretry, uvmexp.fltamcopy);
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(*pr)(" neighbor anon/obj pg=%d/%d, gets(lock/unlock)=%d/%d\n",
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uvmexp.fltnamap, uvmexp.fltnomap, uvmexp.fltlget, uvmexp.fltget);
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(*pr)(" cases: anon=%d, anoncow=%d, obj=%d, prcopy=%d, przero=%d\n",
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uvmexp.flt_anon, uvmexp.flt_acow, uvmexp.flt_obj, uvmexp.flt_prcopy,
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uvmexp.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, nanon=%d, nanonneeded=%d nfreeanon=%d\n",
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uvmexp.nswapdev, uvmexp.nanon, uvmexp.nanonneeded,
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uvmexp.nfreeanon);
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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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