emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

pmap: new applet. +1k.

Browse Source 
pmap is a tool used to look at processes' memory maps, normally found
in procps package. It provides more readable and easily sortable output
(one line per mapping) from  maps/smaps files in /proc/PID/.  This would
help in debugging memory usage issues, especially on devices where lots
of typing is not a viable option.

This patch does'n implement -d and -A command line options of GNU pmap,
since those are not that must have features and I was afraid of going
blind from looking at its code.

The implementation takes smaps scanning part out of procps_scan() function
and moves it into procps_read_smaps(), which does more detailed processing
of a single PID's smaps data.

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Alexander Shishkin
2010-08-28 23:20:34 +02:00
committed by Denys Vlasenko
parent 74c992af5c
commit 0834a6d3b9
4 changed files with 251 additions and 67 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
procps/top.c
View File

@@ -942,20 +942,20 @@ int top_main(int argc UNUSED_PARAM, char **argv)
}
#if ENABLE_FEATURE_TOPMEM
else { /* TOPMEM */
if (!(p->mapped_ro | p->mapped_rw))
if (!(p->smaps.mapped_ro | p->smaps.mapped_rw))
continue; /* kernel threads are ignored */
n = ntop;
/* No bug here - top and topmem are the same */
top = xrealloc_vector(topmem, 6, ntop++);
strcpy(topmem[n].comm, p->comm);
topmem[n].pid = p->pid;
topmem[n].vsz = p->mapped_rw + p->mapped_ro;
topmem[n].vszrw = p->mapped_rw;
topmem[n].rss_sh = p->shared_clean + p->shared_dirty;
topmem[n].rss = p->private_clean + p->private_dirty + topmem[n].rss_sh;
topmem[n].dirty = p->private_dirty + p->shared_dirty;
topmem[n].dirty_sh = p->shared_dirty;
topmem[n].stack = p->stack;
topmem[n].vsz = p->smaps.mapped_rw + p->smaps.mapped_ro;
topmem[n].vszrw = p->smaps.mapped_rw;
topmem[n].rss_sh = p->smaps.shared_clean + p->smaps.shared_dirty;
topmem[n].rss = p->smaps.private_clean + p->smaps.private_dirty + topmem[n].rss_sh;
topmem[n].dirty = p->smaps.private_dirty + p->smaps.shared_dirty;
topmem[n].dirty_sh = p->smaps.shared_dirty;
topmem[n].stack = p->smaps.stack;
}
#endif
} /* end of "while we read /proc" */