top: improve large PID display in memory ('s') mode

function                                             old     new   delta
display_topmem_process_list                          530     564     +34

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/procps/top.c b/procps/top.c
index 744f20e9b..ff775422c 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -879,8 +879,11 @@ static NOINLINE void display_topmem_process_list(int lines_rem, int scr_width)
                 lines_rem = ntop - G_scroll_ofs;
         while (--lines_rem >= 0) {
                 /* PID VSZ VSZRW RSS (SHR) DIRTY (SHR) COMMAND */
-                ulltoa6_and_space(s->pid     , &line_buf[0*6]);
+                int n = sprintf(line_buf, "%5u ", s->pid);
                 ulltoa6_and_space(s->vsz     , &line_buf[1*6]);
+                if (n > 7 || (n == 7 && line_buf[6] != ' '))
+                        /* PID and VSZ are clumped together, truncate PID */
+                        line_buf[5] = '.';
                 ulltoa6_and_space(s->vszrw   , &line_buf[2*6]);
                 ulltoa6_and_space(s->rss     , &line_buf[3*6]);
                 ulltoa6_and_space(s->rss_sh  , &line_buf[4*6]);