Package: google-perftools
Version: 2.1-2
Severity: normal
I compiled the program below and ran it with google-pprof
using
export LD_PRELOAD="/usr/lib/libprofiler.so.0:$LD_PRELOAD"
export CPUPROFILE="/tmp/prof.out"
and then analysed it using
$ google-pprof ./a.out /tmp/prof.out --text
Using local file ./a.out.
Using local file /tmp/prof.out.
Removing killpg from all stack traces.
Total: 203 samples
196 96.6% 96.6% 196 96.6% __nss_hosts_lookup
7 3.4% 100.0% 203 100.0% main
0 0.0% 100.0% 203 100.0% __libc_start_main
0 0.0% 100.0% 203 100.0% _start
-- Program:
#include <string.h>
#include <stdio.h>
int main(void) {
FILE *f = fopen("/dev/zero", "r");
char buf1[1024 * 1024];
char buf2[1024 * 1024];
int i;
int r;
fread(buf1, sizeof(buf1), 1, f);
fread(buf2, sizeof(buf2), 1, f);
for (i = 0; i < sizeof(buf1); i++)
buf1[i] = buf2[i] = i + 1;
buf2[sizeof(buf2)-1]=buf1[sizeof(buf1)-1] = 0;
for (i = 0; i < 1024 * 1024 * 10; i++)
r |= strcmp(buf1, buf2);
return r != 0;
}
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (980, 'unstable'), (500, 'unstable'), (100, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.13-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages google-perftools depends on:
ii curl 7.36.0-1
ii libgoogle-perftools4 2.1-2
Versions of packages google-perftools recommends:
ii graphviz 2.26.3-16.2
ii gv 1:3.7.4-1
google-perftools suggests no packages.
-- no debconf information
--
Julian Andres Klode - Debian Developer, Ubuntu Member
See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.
Please do not top-post if possible.
--
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
