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diff -up ./proc/sysinfo.c.ori ./proc/sysinfo.c
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--- ./proc/sysinfo.c.ori 2021-02-09 11:11:25.000000000 +0100
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+++ ./proc/sysinfo.c 2022-07-29 14:08:42.093322509 +0200
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@@ -786,10 +786,8 @@ nextline:
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where such values will be dramatically distorted over those of the host. */
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if (kb_main_available > kb_main_total)
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kb_main_available = kb_main_free;
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- mem_used = kb_main_total - kb_main_free - kb_main_cached - kb_main_buffers;
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- if (mem_used < 0)
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- mem_used = kb_main_total - kb_main_free;
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- kb_main_used = (unsigned long)mem_used;
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+ mem_used = kb_main_total - kb_main_available;
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+ kb_main_used = mem_used < 0 ? 0 : (unsigned long) mem_used;
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/* zero? might need fallback for 2.6.27 <= kernel
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if (!kb_main_available) {
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diff -up ./top/top.c.ori ./top/top.c
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--- ./top/top.c.ori 2021-02-09 11:11:25.000000000 +0100
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+++ ./top/top.c 2022-07-29 13:59:04.681966019 +0200
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@@ -6076,12 +6076,16 @@ numa_nope:
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char used[SMLBUFSIZ], util[SMLBUFSIZ], dual[MEDBUFSIZ];
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float pct_used, pct_misc, pct_swap;
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int ix, num_used, num_misc;
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+ unsigned long my_used;
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- pct_used = (float)kb_main_used * (100.0 / (float)kb_main_total);
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+ // upstream kept old calculation of 'used' here for some reason
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+ // https://gitlab.com/procps-ng/procps/-/commit/047d16ccfda6638eda78f56b67def196a2002b6f
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+ my_used = kb_main_total - kb_main_free - kb_main_cached - kb_main_buffers;
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+ pct_used = (float)my_used * (100.0 / (float)kb_main_total);
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#ifdef MEMGRAPH_OLD
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pct_misc = (float)(kb_main_buffers + kb_main_cached) * (100.0 / (float)kb_main_total);
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#else
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- pct_misc = (float)(kb_main_total - kb_main_available - kb_main_used) * (100.0 / (float)kb_main_total);
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+ pct_misc = (float)(kb_main_total - kb_main_available - my_used) * (100.0 / (float)kb_main_total);
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#endif
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if (pct_used + pct_misc > 100.0 || pct_misc < 0) pct_misc = 0;
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pct_swap = kb_swap_total ? (float)kb_swap_used * (100.0 / (float)kb_swap_total) : 0;
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