diff -up ./proc/sysinfo.c.ori ./proc/sysinfo.c

--- ./proc/sysinfo.c.ori	2021-02-09 11:11:25.000000000 +0100

+++ ./proc/sysinfo.c	2022-07-29 14:08:42.093322509 +0200

@@ -786,10 +786,8 @@ nextline:

      where such values will be dramatically distorted over those of the host. */

   if (kb_main_available > kb_main_total)

     kb_main_available = kb_main_free;

-  mem_used = kb_main_total - kb_main_free - kb_main_cached - kb_main_buffers;

-  if (mem_used < 0)

-    mem_used = kb_main_total - kb_main_free;

-  kb_main_used = (unsigned long)mem_used;

+  mem_used = kb_main_total - kb_main_available;

+  kb_main_used = mem_used < 0 ? 0 : (unsigned long) mem_used;

   /* zero? might need fallback for 2.6.27 <= kernel 

   if (!kb_main_available) {

diff -up ./top/top.c.ori ./top/top.c

--- ./top/top.c.ori	2021-02-09 11:11:25.000000000 +0100

+++ ./top/top.c	2022-07-29 13:59:04.681966019 +0200

@@ -6076,12 +6076,16 @@ numa_nope:

          char used[SMLBUFSIZ], util[SMLBUFSIZ], dual[MEDBUFSIZ];

          float pct_used, pct_misc, pct_swap;

          int ix, num_used, num_misc;

+         unsigned long my_used;

-         pct_used = (float)kb_main_used * (100.0 / (float)kb_main_total);

+         // upstream kept old calculation of 'used' here for some reason

+         // https://gitlab.com/procps-ng/procps/-/commit/047d16ccfda6638eda78f56b67def196a2002b6f

+         my_used = kb_main_total - kb_main_free - kb_main_cached - kb_main_buffers;

+         pct_used = (float)my_used * (100.0 / (float)kb_main_total);

 #ifdef MEMGRAPH_OLD

          pct_misc = (float)(kb_main_buffers + kb_main_cached) * (100.0 / (float)kb_main_total);

 #else

-         pct_misc = (float)(kb_main_total - kb_main_available - kb_main_used) * (100.0 / (float)kb_main_total);

+         pct_misc = (float)(kb_main_total - kb_main_available - my_used) * (100.0 / (float)kb_main_total);

 #endif

          if (pct_used + pct_misc > 100.0 || pct_misc < 0) pct_misc = 0;

          pct_swap = kb_swap_total ? (float)kb_swap_used * (100.0 / (float)kb_swap_total) : 0;