/* $NetBSD: uvm_stat.h,v 1.24 2002/03/05 05:45:54 simonb Exp $ */ /* * * Copyright (c) 1997 Charles D. Cranor and Washington University. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles D. Cranor and * Washington University. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * from: Id: uvm_stat.h,v 1.1.2.4 1998/02/07 01:16:56 chs Exp */ #ifndef _UVM_UVM_STAT_H_ #define _UVM_UVM_STAT_H_ #if defined(_KERNEL_OPT) #include "opt_uvmhist.h" #endif #include /* * uvm_stat: monitor what is going on with uvm (or whatever) */ /* * counters [XXX: maybe replace event counters with this] */ #define UVMCNT_MASK 0xf /* rest are private */ #define UVMCNT_CNT 0 /* normal counter */ #define UVMCNT_DEV 1 /* device event counter */ struct uvm_cnt { int c; /* the value */ int t; /* type */ struct uvm_cnt *next; /* global list of cnts */ char *name; /* counter name */ void *p; /* private data */ }; #ifdef _KERNEL extern struct uvm_cnt *uvm_cnt_head; /* * counter operations. assume spl is set ok. */ #define UVMCNT_INIT(CNT,TYP,VAL,NAM,PRIV) \ do { \ CNT.c = VAL; \ CNT.t = TYP; \ CNT.next = uvm_cnt_head; \ uvm_cnt_head = &CNT; \ CNT.name = NAM; \ CNT.p = PRIV; \ } while (0) #define UVMCNT_SET(C,V) \ do { \ (C).c = (V); \ } while (0) #define UVMCNT_ADD(C,V) \ do { \ (C).c += (V); \ } while (0) #define UVMCNT_INCR(C) UVMCNT_ADD(C,1) #define UVMCNT_DECR(C) UVMCNT_ADD(C,-1) #endif /* _KERNEL */ /* * history/tracing */ struct uvm_history_ent { struct timeval tv; /* time stamp */ char *fmt; /* printf format */ size_t fmtlen; /* length of printf format */ char *fn; /* function name */ size_t fnlen; /* length of function name */ u_long call; /* function call number */ u_long v[4]; /* values */ }; struct uvm_history { const char *name; /* name of this this history */ size_t namelen; /* length of name, not including null */ LIST_ENTRY(uvm_history) list; /* link on list of all histories */ int n; /* number of entries */ int f; /* next free one */ struct simplelock l; /* lock on this history */ struct uvm_history_ent *e; /* the malloc'd entries */ }; LIST_HEAD(uvm_history_head, uvm_history); /* * grovelling lists all at once. we currently do not allow more than * 32 histories to exist, as the way to dump a number of them at once * is by calling uvm_hist() with a bitmask. */ /* this is used to set the size of some arrays */ #define MAXHISTS 32 /* do not change this! */ /* and these are the bit values of each history */ #define UVMHIST_MAPHIST 0x00000001 /* maphist */ #define UVMHIST_PDHIST 0x00000002 /* pdhist */ #define UVMHIST_UBCHIST 0x00000004 /* ubchist */ #ifdef _KERNEL /* * macros to use the history/tracing code. note that UVMHIST_LOG * must take 4 arguments (even if they are ignored by the format). */ #ifndef UVMHIST #define UVMHIST_DECL(NAME) #define UVMHIST_INIT(NAME,N) #define UVMHIST_INIT_STATIC(NAME,BUF) #define UVMHIST_LOG(NAME,FMT,A,B,C,D) #define UVMHIST_CALLED(NAME) #define UVMHIST_FUNC(FNAME) #define uvmhist_dump(NAME) #else #include /* for "cold" variable */ extern struct uvm_history_head uvm_histories; #define UVMHIST_DECL(NAME) struct uvm_history NAME #define UVMHIST_INIT(NAME,N) \ do { \ (NAME).name = __STRING(NAME); \ (NAME).namelen = strlen((NAME).name); \ (NAME).n = (N); \ (NAME).f = 0; \ simple_lock_init(&(NAME).l); \ (NAME).e = (struct uvm_history_ent *) \ malloc(sizeof(struct uvm_history_ent) * (N), M_TEMP, \ M_WAITOK); \ memset((NAME).e, 0, sizeof(struct uvm_history_ent) * (N)); \ LIST_INSERT_HEAD(&uvm_histories, &(NAME), list); \ } while (0) #define UVMHIST_INIT_STATIC(NAME,BUF) \ do { \ (NAME).name = __STRING(NAME); \ (NAME).namelen = strlen((NAME).name); \ (NAME).n = sizeof(BUF) / sizeof(struct uvm_history_ent); \ (NAME).f = 0; \ simple_lock_init(&(NAME).l); \ (NAME).e = (struct uvm_history_ent *) (BUF); \ memset((NAME).e, 0, sizeof(struct uvm_history_ent) * (NAME).n); \ LIST_INSERT_HEAD(&uvm_histories, &(NAME), list); \ } while (0) #if defined(UVMHIST_PRINT) extern int uvmhist_print_enabled; #define UVMHIST_PRINTNOW(E) \ do { \ if (uvmhist_print_enabled) { \ uvmhist_print(E); \ DELAY(100000); \ } \ } while (0) #else #define UVMHIST_PRINTNOW(E) /* nothing */ #endif #define UVMHIST_LOG(NAME,FMT,A,B,C,D) \ do { \ int _i_, _s_ = splhigh(); \ simple_lock(&(NAME).l); \ _i_ = (NAME).f; \ (NAME).f = (_i_ + 1) % (NAME).n; \ simple_unlock(&(NAME).l); \ splx(_s_); \ if (!cold) \ microtime(&(NAME).e[_i_].tv); \ (NAME).e[_i_].fmt = (FMT); \ (NAME).e[_i_].fmtlen = strlen((NAME).e[_i_].fmt); \ (NAME).e[_i_].fn = _uvmhist_name; \ (NAME).e[_i_].fnlen = strlen((NAME).e[_i_].fn); \ (NAME).e[_i_].call = _uvmhist_call; \ (NAME).e[_i_].v[0] = (u_long)(A); \ (NAME).e[_i_].v[1] = (u_long)(B); \ (NAME).e[_i_].v[2] = (u_long)(C); \ (NAME).e[_i_].v[3] = (u_long)(D); \ UVMHIST_PRINTNOW(&((NAME).e[_i_])); \ } while (0) #define UVMHIST_CALLED(NAME) \ do { \ { \ int s = splhigh(); \ simple_lock(&(NAME).l); \ _uvmhist_call = _uvmhist_cnt++; \ simple_unlock(&(NAME).l); \ splx(s); \ } \ UVMHIST_LOG(NAME,"called!", 0, 0, 0, 0); \ } while (0) #define UVMHIST_FUNC(FNAME) \ static int _uvmhist_cnt = 0; \ static char *_uvmhist_name = FNAME; \ int _uvmhist_call; static __inline void uvmhist_print __P((struct uvm_history_ent *)); static __inline void uvmhist_print(e) struct uvm_history_ent *e; { printf("%06ld.%06ld ", e->tv.tv_sec, e->tv.tv_usec); printf("%s#%ld: ", e->fn, e->call); printf(e->fmt, e->v[0], e->v[1], e->v[2], e->v[3]); printf("\n"); } #endif /* UVMHIST */ #endif /* _KERNEL */ #endif /* _UVM_UVM_STAT_H_ */