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POAre the pmap's RSS and htop's RES the same?
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2011-03-17T09:27:07.413
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2018-08-31T13:41:35.467
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2018-08-31T13:41:35.467
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I run the following simple program <pre><code>#include <stdio.h> #include <stdlib.h> int main() { malloc(1024*1024*32); getchar(); return 0; } </code></pre> <code>htop</code> gives this <pre><code>VIRT RES SHR 36684 312 240 </code></pre> <code>pmap -x</code> gives this <pre><code>Address Kbytes RSS Dirty Mode Mapping 0000000000400000 0 4 0 r-x-- a.out 0000000000600000 0 4 4 r---- a.out 0000000000601000 0 4 4 rw--- a.out 00007f063d3b7000 0 4 4 rw--- [ anon ] 00007f063f3b8000 0 228 0 r-x-- libc-2.12.1.so 00007f063f532000 0 0 0 ----- libc-2.12.1.so 00007f063f731000 0 16 16 r---- libc-2.12.1.so 00007f063f735000 0 4 4 rw--- libc-2.12.1.so 00007f063f736000 0 12 12 rw--- [ anon ] 00007f063f73b000 0 108 0 r-x-- ld-2.12.1.so 00007f063f93d000 0 12 12 rw--- [ anon ] 00007f063f958000 0 8 8 rw--- [ anon ] 00007f063f95b000 0 4 4 r---- ld-2.12.1.so 00007f063f95c000 0 4 4 rw--- ld-2.12.1.so 00007f063f95d000 0 4 4 rw--- [ anon ] 00007fff4b298000 0 12 12 rw--- [ stack ] 00007fff4b2d7000 0 4 0 r-x-- [ anon ] ffffffffff600000 0 0 0 r-x-- [ anon ] ---------------- ------ ------ ------ total kB 36684 432 88 </code></pre> <code>htop</code> and <code>pmap</code> show the same virtual size(36684), but they shows different things for physical memory (<code>htop</code>'s <code>RES</code> = 321 and <code>pmap</code>'s <code>RSS</code> = 432). Maybe I confuse something but is there any difference between <code>htop</code>'s <code>RES</code> and <code>pmap</code>'s <code>RSS</code>?
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<memory><pmap><htop>
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Are the pmap's RSS and htop's RES the same?
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