Author: araujo
Date: Mon Dec 28 02:07:56 2015
New Revision: 292817
URL: https://svnweb.freebsd.org/changeset/base/292817

Log:
  Add on systat -vm the ability to display the physical and kernel memory
  percent usage.
  
  PR:           bin/203917
  Submitted by: ota <o...@j.email.ne.jp>
  Approved by:  bapt (mentor)
  Differential Revision:        https://reviews.freebsd.org/D4281

Modified:
  head/usr.bin/systat/vmstat.c

Modified: head/usr.bin/systat/vmstat.c
==============================================================================
--- head/usr.bin/systat/vmstat.c        Mon Dec 28 02:01:41 2015        
(r292816)
+++ head/usr.bin/systat/vmstat.c        Mon Dec 28 02:07:56 2015        
(r292817)
@@ -108,6 +108,7 @@ static struct Info {
        u_int v_active_count;   /* number of pages active */
        u_int v_inactive_count; /* number of pages inactive */
        u_int v_cache_count;    /* number of pages on buffer cache queue */
+       u_long v_kmem_map_size; /* Current kmem allocation size */
        struct  vmtotal Total;
        struct  nchstats nchstats;
        long    nchcount;
@@ -118,6 +119,8 @@ static struct Info {
        long    freevnodes;
        int     numdirtybuffers;
 } s, s1, s2, z;
+static u_long kmem_size;
+static u_int v_page_count;
 
 struct statinfo cur, last, run;
 
@@ -278,6 +281,8 @@ initkre(void)
                allocinfo(&s2);
                allocinfo(&z);
        }
+       GETSYSCTL("vm.kmem_size", kmem_size);
+       GETSYSCTL("vm.stats.vm.v_page_count", v_page_count);
        getinfo(&s2);
        copyinfo(&s2, &s1);
        return(1);
@@ -307,7 +312,8 @@ labelkre(void)
 
        clear();
        mvprintw(STATROW, STATCOL + 6, "users    Load");
-       mvprintw(MEMROW, MEMCOL, "Mem:KB    REAL            VIRTUAL");
+       mvprintw(STATROW + 1, STATCOL + 3, "Mem usage:    %%Phy   %%Kmem");
+       mvprintw(MEMROW, MEMCOL, "Mem: KB    REAL            VIRTUAL");
        mvprintw(MEMROW + 1, MEMCOL, "        Tot   Share      Tot    Share");
        mvprintw(MEMROW + 2, MEMCOL, "Act");
        mvprintw(MEMROW + 3, MEMCOL, "All");
@@ -478,6 +484,11 @@ showkre(void)
        putfloat(avenrun[2], STATROW, STATCOL + 32, 5, 2, 0);
        mvaddstr(STATROW, STATCOL + 55, buf);
 #define pgtokb(pg)     ((pg) * (s.v_page_size / 1024))
+       putfloat(100.0 * (v_page_count - total.t_free) / v_page_count,
+          STATROW + 1, STATCOL + 15, 2, 0, 1);
+       putfloat(100.0 * s.v_kmem_map_size / kmem_size,
+          STATROW + 1, STATCOL + 22, 2, 0, 1);
+
        putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 4, 7);
        putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 12, 7);
        putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 20, 8);
@@ -790,6 +801,7 @@ getinfo(struct Info *ls)
        GETSYSCTL("vfs.freevnodes", ls->freevnodes);
        GETSYSCTL("vfs.cache.nchstats", ls->nchstats);
        GETSYSCTL("vfs.numdirtybuffers", ls->numdirtybuffers);
+       GETSYSCTL("vm.kmem_map_size", ls->v_kmem_map_size);
        getsysctl("hw.intrcnt", ls->intrcnt, nintr * sizeof(u_long));
 
        size = sizeof(ls->Total);
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