BSD 4.4 Lite Kernel Sources

1 files changed, 147 insertions, 0 deletions

diff --git a/sys/sys/vmmeter.h b/sys/sys/vmmeter.h
new file mode 100644
index 0000000..f0b3d57
--- /dev/null
+++ b/sys/sys/vmmeter.h
@@ -0,0 +1,147 @@
+/*-
+ * Copyright (c) 1982, 1986, 1993
+ *	The Regents of the University of California.  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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)vmmeter.h	8.1 (Berkeley) 6/2/93
+ */
+
+/*
+ * System wide statistics counters.
+ */
+struct vmmeter {
+	/*
+	 * General system activity.
+	 */
+	unsigned v_swtch;	/* context switches */
+	unsigned v_trap;	/* calls to trap */
+	unsigned v_syscall;	/* calls to syscall() */
+	unsigned v_intr;	/* device interrupts */
+	unsigned v_soft;	/* software interrupts */
+	unsigned v_faults;	/* total faults taken */
+	/*
+	 * Virtual memory activity.
+	 */
+	unsigned v_lookups;	/* object cache lookups */
+	unsigned v_hits;	/* object cache hits */
+	unsigned v_vm_faults;	/* number of address memory faults */
+	unsigned v_cow_faults;	/* number of copy-on-writes */
+	unsigned v_swpin;	/* swapins */
+	unsigned v_swpout;	/* swapouts */
+	unsigned v_pswpin;	/* pages swapped in */
+	unsigned v_pswpout;	/* pages swapped out */
+	unsigned v_pageins;	/* number of pageins */
+	unsigned v_pageouts;	/* number of pageouts */
+	unsigned v_pgpgin;	/* pages paged in */
+	unsigned v_pgpgout;	/* pages paged out */
+	unsigned v_intrans;	/* intransit blocking page faults */
+	unsigned v_reactivated;	/* number of pages reactivated from free list */
+	unsigned v_rev;		/* revolutions of the hand */
+	unsigned v_scan;	/* scans in page out daemon */
+	unsigned v_dfree;	/* pages freed by daemon */
+	unsigned v_pfree;	/* pages freed by exiting processes */
+	unsigned v_zfod;	/* pages zero filled on demand */
+	unsigned v_nzfod;	/* number of zfod's created */
+	/*
+	 * Distribution of page usages.
+	 */
+	unsigned v_page_size;	/* page size in bytes */
+	unsigned v_kernel_pages;/* number of pages in use by kernel */
+	unsigned v_free_target;	/* number of pages desired free */
+	unsigned v_free_min;	/* minimum number of pages desired free */
+	unsigned v_free_count;	/* number of pages free */
+	unsigned v_wire_count;	/* number of pages wired down */
+	unsigned v_active_count;/* number of pages active */
+	unsigned v_inactive_target; /* number of pages desired inactive */
+	unsigned v_inactive_count;  /* number of pages inactive */
+};
+#ifdef KERNEL
+struct	vmmeter cnt;
+#endif
+
+/* systemwide totals computed every five seconds */
+struct vmtotal
+{
+	short	t_rq;		/* length of the run queue */
+	short	t_dw;		/* jobs in ``disk wait'' (neg priority) */
+	short	t_pw;		/* jobs in page wait */
+	short	t_sl;		/* jobs sleeping in core */
+	short	t_sw;		/* swapped out runnable/short block jobs */
+	long	t_vm;		/* total virtual memory */
+	long	t_avm;		/* active virtual memory */
+	long	t_rm;		/* total real memory in use */
+	long	t_arm;		/* active real memory */
+	long	t_vmshr;	/* shared virtual memory */
+	long	t_avmshr;	/* active shared virtual memory */
+	long	t_rmshr;	/* shared real memory */
+	long	t_armshr;	/* active shared real memory */
+	long	t_free;		/* free memory pages */
+};
+#ifdef KERNEL
+struct	vmtotal total;
+#endif
+
+/*
+ * Optional instrumentation.
+ */
+#ifdef PGINPROF
+
+#define	NDMON	128
+#define	NSMON	128
+
+#define	DRES	20
+#define	SRES	5
+
+#define	PMONMIN	20
+#define	PRES	50
+#define	NPMON	64
+
+#define	RMONMIN	130
+#define	RRES	5
+#define	NRMON	64
+
+/* data and stack size distribution counters */
+unsigned int	dmon[NDMON+1];
+unsigned int	smon[NSMON+1];
+
+/* page in time distribution counters */
+unsigned int	pmon[NPMON+2];
+
+/* reclaim time distribution counters */
+unsigned int	rmon[NRMON+2];
+
+int	pmonmin;
+int	pres;
+int	rmonmin;
+int	rres;
+
+unsigned rectime;		/* accumulator for reclaim times */
+unsigned pgintime;		/* accumulator for page in times */
+#endif