Difference between revisions of "Memory management"
From Linuxintro
imported>ThorstenStaerk |
imported>ThorstenStaerk |
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| Line 6: | Line 6: | ||
* http://lwn.net/Articles/230975/ | * http://lwn.net/Articles/230975/ | ||
* https://fedorahosted.org/libpagemap/ | * https://fedorahosted.org/libpagemap/ | ||
| + | |||
| + | <pre> | ||
| + | # pmap 24058 | ||
| + | 24058: a.out | ||
| + | START SIZE RSS PSS DIRTY SWAP PERM MAPPING | ||
| + | 0000000000400000 4K 4K 4K 0K 0K r-xp /home/tstaerk/test/a.out | ||
| + | 0000000000600000 4K 4K 4K 4K 0K r--p /home/tstaerk/test/a.out | ||
| + | 0000000000601000 4K 4K 4K 4K 0K rw-p /home/tstaerk/test/a.out | ||
| + | 00007fda6f01e000 1364K 160K 1K 0K 0K r-xp /lib64/libc-2.11.1.so | ||
| + | 00007fda6f173000 2044K 0K 0K 0K 0K ---p /lib64/libc-2.11.1.so | ||
| + | 00007fda6f372000 16K 16K 16K 16K 0K r--p /lib64/libc-2.11.1.so | ||
| + | 00007fda6f376000 4K 4K 4K 4K 0K rw-p /lib64/libc-2.11.1.so | ||
| + | 00007fda6f377000 20K 12K 12K 12K 0K rw-p [anon] | ||
| + | 00007fda6f37c000 124K 104K 1K 0K 0K r-xp /lib64/ld-2.11.1.so | ||
| + | 00007fda6f55a000 12K 12K 12K 12K 0K rw-p [anon] | ||
| + | 00007fda6f599000 4K 4K 4K 4K 0K rw-p [anon] | ||
| + | 00007fda6f59a000 4K 4K 4K 4K 0K r--p /lib64/ld-2.11.1.so | ||
| + | 00007fda6f59b000 4K 4K 4K 4K 0K rw-p /lib64/ld-2.11.1.so | ||
| + | 00007fda6f59c000 4K 4K 4K 4K 0K rw-p [anon] | ||
| + | 00007fff625e5000 84K 12K 12K 12K 0K rw-p [stack] | ||
| + | 00007fff625ff000 4K 4K 0K 0K 0K r-xp [vdso] | ||
| + | ffffffffff600000 4K 0K 0K 0K 0K r-xp [vsyscall] | ||
| + | Total: 3704K 352K 86K 80K 0K | ||
| + | |||
| + | 136K writable-private, 3568K readonly-private, 0K shared, and 352K referenced | ||
| + | # ldd a.out | ||
| + | linux-vdso.so.1 => (0x00007fffc4bee000) | ||
| + | libc.so.6 => /lib64/libc.so.6 (0x00007f2c6cc78000) | ||
| + | /lib64/ld-linux-x86-64.so.2 (0x00007f2c6d013000) | ||
| + | </pre> | ||
Revision as of 09:20, 6 June 2012
- http://linux-mm.org
- http://linux-mm.org/Low_On_Memory
- http://www.linux.com/learn/tutorials/42048-uncover-the-meaning-of-tops-statistics
- http://en.wikipedia.org/wiki/Resident_set_size
- http://en.wikipedia.org/wiki/Mmap
- http://lwn.net/Articles/230975/
- https://fedorahosted.org/libpagemap/
# pmap 24058
24058: a.out
START SIZE RSS PSS DIRTY SWAP PERM MAPPING
0000000000400000 4K 4K 4K 0K 0K r-xp /home/tstaerk/test/a.out
0000000000600000 4K 4K 4K 4K 0K r--p /home/tstaerk/test/a.out
0000000000601000 4K 4K 4K 4K 0K rw-p /home/tstaerk/test/a.out
00007fda6f01e000 1364K 160K 1K 0K 0K r-xp /lib64/libc-2.11.1.so
00007fda6f173000 2044K 0K 0K 0K 0K ---p /lib64/libc-2.11.1.so
00007fda6f372000 16K 16K 16K 16K 0K r--p /lib64/libc-2.11.1.so
00007fda6f376000 4K 4K 4K 4K 0K rw-p /lib64/libc-2.11.1.so
00007fda6f377000 20K 12K 12K 12K 0K rw-p [anon]
00007fda6f37c000 124K 104K 1K 0K 0K r-xp /lib64/ld-2.11.1.so
00007fda6f55a000 12K 12K 12K 12K 0K rw-p [anon]
00007fda6f599000 4K 4K 4K 4K 0K rw-p [anon]
00007fda6f59a000 4K 4K 4K 4K 0K r--p /lib64/ld-2.11.1.so
00007fda6f59b000 4K 4K 4K 4K 0K rw-p /lib64/ld-2.11.1.so
00007fda6f59c000 4K 4K 4K 4K 0K rw-p [anon]
00007fff625e5000 84K 12K 12K 12K 0K rw-p [stack]
00007fff625ff000 4K 4K 0K 0K 0K r-xp [vdso]
ffffffffff600000 4K 0K 0K 0K 0K r-xp [vsyscall]
Total: 3704K 352K 86K 80K 0K
136K writable-private, 3568K readonly-private, 0K shared, and 352K referenced
# ldd a.out
linux-vdso.so.1 => (0x00007fffc4bee000)
libc.so.6 => /lib64/libc.so.6 (0x00007f2c6cc78000)
/lib64/ld-linux-x86-64.so.2 (0x00007f2c6d013000)
