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[Bug fortran/56981] Slow I/O: Unformatted 5x slower, large sys component; formatted slow as well
- From: "jvdelisle at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 08 Jun 2014 23:57:24 +0000
- Subject: [Bug fortran/56981] Slow I/O: Unformatted 5x slower, large sys component; formatted slow as well
- Auto-submitted: auto-generated
- References: <bug-56981-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56981
--- Comment #12 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
$ strace -c ./a.out
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
99.97 0.078667 0 1000000 write
0.03 0.000022 2 11 fstat
0.00 0.000000 0 5 read
0.00 0.000000 0 17 10 open
0.00 0.000000 0 7 close
0.00 0.000000 0 8 6 stat
0.00 0.000000 0 17 mmap
0.00 0.000000 0 12 mprotect
0.00 0.000000 0 1 munmap
0.00 0.000000 0 3 brk
0.00 0.000000 0 10 rt_sigaction
0.00 0.000000 0 10 9 access
0.00 0.000000 0 1 execve
0.00 0.000000 0 1 readlink
0.00 0.000000 0 1 arch_prctl
------ ----------- ----------- --------- --------- ----------------
100.00 0.078689 1000104 25 total
This is looking pretty good now!