because of the variability of whose "time" you get and so forth, i gave up and
wrote a linux-specific
function to do this. there are of course pros and cons, but take this if you
want:
#include "basic.h"
#include "libng.h"
#include "libw.h"
#include <asm-i386/param.h>
void
resource_summary(FILE *fp)
{
char buf[4096];
FILE *mp;
int r_tps, r_rss, r_sp, r_text, r_lib, r_data, r_dt, r_pid;
unsigned long r_utime, r_stime, r_vsize;
long r_nthread;
sprintf(buf, "/proc/%d/statm", getpid());
if((mp = fopen(buf, "r")) == NULL){
perror(buf);
return;
}
if(fscanf(mp, "%d %d %d %d %d %d %d", &r_tps, &r_rss, &r_sp, &r_text,
&r_lib, &r_data, &r_dt) != 7){
fprintf(stderr, "bad format statm\n");
fclose(mp);
return;
}
fclose(mp);
sprintf(buf, "/proc/%d/stat", getpid());
if((mp = fopen(buf, "r")) == NULL){
perror(buf);
return;
}
if(fscanf(mp, "%d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %lu \
%lu %*d %*d %*d %*d %ld %*u %*u %lu %*u %*u %*u %*u %*u
\
%*u %*u %*u %*u %*u %*u %*u %*u %*d %*d %*u %*u %*u %*u
%*d ",
&r_pid, &r_utime, &r_stime, &r_nthread, &r_vsize) != 5){
fprintf(stderr, "bad format stat\n");
fclose(mp);
return;
}
fclose(mp);
fprintf(fp, "tps=%d rss=%d sp=%d text=%d lib=%d data=%d pid=%d
utime=%.1fs stime=%.1fs nthr=%ld vs=%.1fMB\n",
r_tps, r_rss, r_sp, r_text, r_lib, r_data, r_pid,
r_utime/(double)HZ, r_stime/(double)HZ, r_nthread, r_vsize/(1024*1024.0));
}
of course, its only doing what i was interested in but it may be a useful start.
On Jun 19, 2012, at 10:27 AM, [email protected] wrote:
> /usr/bin/time will provide a lot of stats, take a look and see how close it
> comes to what you want.
>
> David Lang
>
> On Tue, 19 Jun 2012, Christopher R Webber wrote:
>
>> Date: Tue, 19 Jun 2012 05:34:14 -0700
>> From: Christopher R Webber <[email protected]>
>> To: [email protected]
>> Subject: [lopsa-tech] Job/Process Profiling
>> All,
>>
>> I have students and postdocs that write software as part of their research
>> and occasionally they want to answer questions like:
>> - How much memory does this take?
>> - How much time does this take?
>> - What does CPU utilization look like?
>>
>> To add to the list above, I would love to see I/O statistics as well. Any
>> suggestions on a command line profiling tool for linux that will do this?
>> While most of my users are savy enough to use the command line, I would like
>> to see something where you don't have to understand a whole lot of details
>> to get some basic info.
>>
>> Ideas?
>>
>> Thanks.
>>
>> -- cwebber
>>
>> Christopher Webber - Systems Administrator
>> Bioinformatics - University of California, Riverside
>>
>> Twitter: @cwebber
>> Tel: 951.867.7108
>> http://cwebber.ucr.edu
>>
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------------------
Andrew Hume (best -> Telework) +1 623-551-2845
[email protected] (Work) +1 973-236-2014
AT&T Labs - Research; member of USENIX and LOPSA
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