make sure ps/top output what they claim: vsz, not rss ... down the line we should make the output controllable either at runtime or buildtime as both statistics are quite useful

git-svn-id: svn://busybox.net/trunk/busybox@17813 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 21 insertions, 21 deletions

diff --git a/procps/top.c b/procps/top.c
index 2681f9748..ee6ee5d5c 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -32,7 +32,7 @@
 
 
 typedef struct {
-        unsigned long rss;
+        unsigned long vsz;
 #if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
         unsigned long ticks;
         unsigned pcpu; /* delta of ticks */
@@ -55,7 +55,7 @@ static struct save_hist *prev_hist;
 static int prev_hist_count;
 /* static int hist_iterations; */
 static unsigned total_pcpu;
-/* static unsigned long total_rss; */
+/* static unsigned long total_vsz; */
 #endif
 
 #define OPT_BATCH_MODE (option_mask32 & 0x4)
@@ -72,8 +72,8 @@ static int pid_sort(top_status_t *P, top_status_t *Q)
 static int mem_sort(top_status_t *P, top_status_t *Q)
 {
         /* We want to avoid unsigned->signed and truncation errors */
-        if (Q->rss < P->rss) return -1;
-        return Q->rss != P->rss; /* 0 if ==, 1 if > */
+        if (Q->vsz < P->vsz) return -1;
+        return Q->vsz != P->vsz; /* 0 if ==, 1 if > */
 }
 
 
@@ -147,7 +147,7 @@ static void do_stats(void)
 
         get_jiffy_counts();
         total_pcpu = 0;
-        /* total_rss = 0; */
+        /* total_vsz = 0; */
         new_hist = xmalloc(sizeof(struct save_hist)*ntop);
         /*
          * Make a pass through the data to get stats.
@@ -179,7 +179,7 @@ static void do_stats(void)
                         i = (i+1) % prev_hist_count;
                         /* hist_iterations++; */
                 } while (i != last_i);
-                /* total_rss += cur->rss; */
+                /* total_vsz += cur->vsz; */
         }
 
         /*
@@ -287,8 +287,8 @@ static void display_status(int count, int scr_width)
         };
 
         top_status_t *s = top;
-        char rss_str_buf[8];
-        unsigned long total_memory = display_generic(scr_width); /* or use total_rss? */
+        char vsz_str_buf[8];
+        unsigned long total_memory = display_generic(scr_width); /* or use total_vsz? */
         unsigned pmem_shift, pmem_scale;
 
 #if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
@@ -297,22 +297,22 @@ static void display_status(int count, int scr_width)
 
         /* what info of the processes is shown */
         printf(OPT_BATCH_MODE ? "%.*s" : "\e[7m%.*s\e[0m", scr_width,
-                "  PID USER     STATUS   RSS  PPID %CPU %MEM COMMAND");
+                "  PID USER     STATUS   VSZ  PPID %CPU %MEM COMMAND");
 #define MIN_WIDTH \
-        sizeof( "  PID USER     STATUS   RSS  PPID %CPU %MEM C")
+        sizeof( "  PID USER     STATUS   VSZ  PPID %CPU %MEM C")
 #else
         printf(OPT_BATCH_MODE ? "%.*s" : "\e[7m%.*s\e[0m", scr_width,
-                "  PID USER     STATUS   RSS  PPID %MEM COMMAND");
+                "  PID USER     STATUS   VSZ  PPID %MEM COMMAND");
 #define MIN_WIDTH \
-        sizeof( "  PID USER     STATUS   RSS  PPID %MEM C")
+        sizeof( "  PID USER     STATUS   VSZ  PPID %MEM C")
 #endif
 
         /*
-         * MEM% = s->rss/MemTotal
+         * MEM% = s->vsz/MemTotal
          */
         pmem_shift = bits_per_int-11;
         pmem_scale = 1000*(1U<<(bits_per_int-11)) / total_memory;
-        /* s->rss is in kb. we want (s->rss * pmem_scale) to never overflow */
+        /* s->vsz is in kb. we want (s->vsz * pmem_scale) to never overflow */
         while (pmem_scale >= 512) {
                 pmem_scale /= 4;
                 pmem_shift -= 2;
@@ -346,14 +346,14 @@ static void display_status(int count, int scr_width)
         /* printf(" pmem_scale=%u pcpu_scale=%u ", pmem_scale, pcpu_scale); */
 #endif
         while (count-- > 0) {
-                div_t pmem = div((s->rss*pmem_scale) >> pmem_shift, 10);
+                div_t pmem = div((s->vsz*pmem_scale) >> pmem_shift, 10);
                 int col = scr_width+1;
                 USE_FEATURE_TOP_CPU_USAGE_PERCENTAGE(div_t pcpu;)
 
-                if (s->rss >= 100*1024)
-                        sprintf(rss_str_buf, "%6ldM", s->rss/1024);
+                if (s->vsz >= 100*1024)
+                        sprintf(vsz_str_buf, "%6ldM", s->vsz/1024);
                 else
-                        sprintf(rss_str_buf, "%7ld", s->rss);
+                        sprintf(vsz_str_buf, "%7ld", s->vsz);
                 USE_FEATURE_TOP_CPU_USAGE_PERCENTAGE(
                 pcpu = div((s->pcpu*pcpu_scale) >> pcpu_shift, 10);
                 )
@@ -362,7 +362,7 @@ static void display_status(int count, int scr_width)
                                 USE_FEATURE_TOP_CPU_USAGE_PERCENTAGE("%3u.%c")
                                 "%3u.%c ",
                                 s->pid, get_cached_username(s->uid), s->state,
-                                rss_str_buf, s->ppid,
+                                vsz_str_buf, s->ppid,
                                 USE_FEATURE_TOP_CPU_USAGE_PERCENTAGE(pcpu.quot, '0'+pcpu.rem,)
                                 pmem.quot, '0'+pmem.rem);
                 if (col > 0)
@@ -474,7 +474,7 @@ int top_main(int argc, char **argv)
                 while ((p = procps_scan(p, 0
                                 | PSSCAN_PID
                                 | PSSCAN_PPID
-                                | PSSCAN_RSS
+                                | PSSCAN_VSZ
                                 | PSSCAN_STIME
                                 | PSSCAN_UTIME
                                 | PSSCAN_STATE
@@ -486,7 +486,7 @@ int top_main(int argc, char **argv)
                         top = xrealloc(top, (++ntop)*sizeof(top_status_t));
                         top[n].pid = p->pid;
                         top[n].ppid = p->ppid;
-                        top[n].rss = p->rss;
+                        top[n].vsz = p->vsz;
 #if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
                         top[n].ticks = p->stime + p->utime;
 #endif