I think that it cannot find ls.prof in the current directory so it thinks you are trying
to load a remote profile and tries to search for it. For example:


david@hatch:~/gperftools$ pprof --text /bin/ls foo
Using local file /bin/ls.
Gathering CPU profile from http://foo/pprof/profile?seconds=30 for 30 seconds to
  /home/david/pprof/ls.1356276363.foo
Be patient...
sh: curl: not found
Failed to get profile: curl 'http://foo/pprof/profile?seconds=30' > /home/david/pprof/.tmp.ls.1356276363.foo:
No such file or directory

i have the exact same problem to 

the exact same problem

the exact same problem. 
I think the .prof isn't created properly with the CPUPROFILE=out.prof ./a.out command.

I have this problem when compiling with -lprofiler or using env LD_PRELOAD="/usr/lib/libprofiler.so"
./a.out, but not when inserting ProfilerStart() and ProfilerStop() into the code

eyalore, lets create brand-new bug and find out what's not working in your case. On
my box everything works as expected.

same problem here. 

[jcheng@jcW530 gperftools]$ pprof /bin/ls ls.prof
Using local file /bin/ls.
Gathering CPU profile from http://ls.prof/pprof/profile?seconds=30 for 30 seconds to
  /home/jcheng/pprof/ls.1401882036.ls.prof
Be patient...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl:
(6) Could not resolve host: ls.prof; Name or service not known
Failed to get profile: curl 'http://ls.prof/pprof/profile?seconds=30' > /home/jcheng/pprof/.tmp.ls.1401882036.ls.prof:
No such file or directory