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https://github.com/fhunleth/memused
An attempt to get a better idea of the amount of memory needed on an embedded Linux system
https://github.com/fhunleth/memused
Last synced: about 1 month ago
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An attempt to get a better idea of the amount of memory needed on an embedded Linux system
- Host: GitHub
- URL: https://github.com/fhunleth/memused
- Owner: fhunleth
- License: gpl-2.0
- Created: 2013-01-30T15:31:43.000Z (almost 12 years ago)
- Default Branch: master
- Last Pushed: 2016-03-07T16:01:42.000Z (almost 9 years ago)
- Last Synced: 2024-10-13T09:56:26.216Z (2 months ago)
- Language: Shell
- Size: 96.7 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README
- Changelog: ChangeLog
- License: COPYING
Awesome Lists containing this project
README
# memused
This program scans /proc/\*/maps to account for all virtual memory mappings. The
goal is to help determine the worst case physical memory that could be used by
not double counting shared text and data areas. It also can help identify
processes that map unexpectantly large amounts of virtual memory. However, the
stats should be taken with a grain of salt. While I've found this more useful than
ps, it certainly has its flaws too.
# Example output
Processes sorted by total amount of mapped memory:
Name PID Unique text Shared text Unique data Shared data Total
/usr/bin/stim 440 1003520 14786560 47759360 266240 63815680
/usr/bin/rim 439 2363392 15900672 4730880 339968 23334912
supervisor 422 180224 15880192 6074368 286720 22421504
/sbin/syslogd 385 0 2527232 315392 16384 2859008
-sh 457 45056 2535424 253952 20480 2854912
watchdog 391 0 2527232 249856 16384 2793472
/sbin/klogd 387 0 2527232 249856 16384 2793472
init 1 0 2527232 249856 16384 2793472
Mapped files sorted by size privately or uniquely mapped:
Name Unique text Shared text Unique data Shared data Total
/dev/cmem 0 0 46166016 0 46166016
/usr/bin/stim 937984 0 4096 4096 946176
/usr/bin/rim 741376 0 8192 0 749568
/lib/libqwt.so.6.0.2 671744 0 0 16384 688128
b/libasound.so.2.0.0 585728 0 0 16384 602112
/usr/bin/supervisor 180224 0 4096 0 184320
/lib/liblua.so.5.1.5 147456 0 0 4096 151552
tMultimedia.so.4.8.1 147456 0 0 4096 151552
ibrimscript.so.1.0.0 131072 0 0 4096 135168
lib/libdmtx.so.0.0.0 94208 0 0 4096 98304
libnss_files-2.13.so 69632 4096 0 4096 77824
lib/libstub.so.1.0.0 69632 0 0 4096 73728
/SYSV414e4547 0 0 65536 0 65536
ibrffcharts.so.1.0.0 45056 0 0 4096 49152
/SYSV4956444a 0 0 4096 0 4096
/SYSV50434958 0 0 4096 0 4096
/SYSV50434959 0 0 4096 0 4096
/SYSV4d43544f 0 0 4096 0 4096
/SYSV4d435450 0 0 4096 0 4096
ib/libQtGui.so.4.8.1 0 7135232 0 126976 7262208
b/libQtCore.so.4.8.1 0 2920448 0 36864 2957312
/lib/libc-2.13.so 0 1327104 0 4096 1331200
/dev/fb0 0 0 0 921600 921600
/libstdc++.so.6.0.16 0 823296 0 8192 831488
/lib/libm-2.13.so 0 667648 0 4096 671744
/libQxtCore.so.0.6.2 0 532480 0 20480 552960
ibQtNetwork.so.4.8.1 0 528384 0 12288 540672
/bin/busybox 0 434176 0 4096 438272
geformats/libqmng.so 0 335872 0 8192 344064
/SYSV00000000 0 0 0 307200 307200
/lib/librff.so.1.0.0 0 237568 0 12288 249856
lib/libjpeg.so.8.4.0 0 208896 0 4096 212992
s/DroidSans-Bold.ttf 0 196608 0 0 196608
/fonts/DroidSans.ttf 0 192512 0 0 192512
/lib/libgcc_s.so.1 0 155648 0 4096 159744
/libpng14.so.14.11.0 0 143360 0 4096 147456
/lib/ld-2.13.so 0 131072 0 4096 135168
b/libpthread-2.13.so 0 110592 0 4096 114688
ibrim-utils.so.1.0.0 0 98304 0 4096 102400
sr/lib/libz.so.1.2.6 0 98304 0 4096 102400
/lib/librt-2.13.so 0 53248 0 4096 57344
eformats/libqjpeg.so 0 49152 0 4096 53248
/lib/libdl-2.13.so 0 40960 0 4096 45056
/SYSV00000000 0 0 0 4096 4096
/dev/mem 0 0 0 4096 4096
Summary
Total amount of unique read-only/text data: 3592192 bytes
Total amount of shared read-only/text data: 16633856 bytes
Total amount of private or singly mapped writable data: 59883520 bytes
Total amount of shared writable data: 1593344 bytes
Sum total of mapped memory: 81702912 bytes