Am 17.05.2012 01:31, schrieb Øyvind A. Holm:
On Debian GNU/Linux 6.0.5 (squeeze), the two commits on the
tr/xdiff-fast-hash branch introduces compiler warnings and breaks
t/t0020-crlf.sh and maybe later tests:
What does the following short C program report when run (e.g. put it in
a file named s.c, then run "gcc -o s s.c" and "./s")?
#include <stdio.h>
int main(int argc, const char **argv) {
printf("%u %u %u\n", sizeof(int), sizeof(long), sizeof(void *));
return 0;
}
I suspect you run a 32-bit userland on a 64-bit kernel.
On Ubuntu 12.04 x86, t0020 fails for me as well when I compile with
XDL_FAST_HASH explicitly set (it's off by default). It succeeds after
reverting 6f1af02, though, strangely enough. No compiler warnings are
printed in either case.
$ gcc --version
gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
$ uname -a
Linux ubuntu 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:52 UTC
2012 i686 i686 i386 GNU/Linux
Also, here are the measurements for master (v1.7.10.2-520-g6a4a482)
without XDL_FAST_HASH, and with master minus 6f1af02 plus explicitly set
XDL_FAST_HASH:
Test master reverted+FAST
---------------------------------------------------------------------
4000.1: log -3000 (baseline) 0.08(0.05+0.02) 0.08(0.05+0.02)
4000.2: log --raw -3000 (tree-only) 0.39(0.34+0.04) 0.39(0.32+0.06)
4000.3: log -p -3000 (Myers) 1.55(1.43+0.11) 1.43(1.29+0.12)
4000.4: log -p -3000 --histogram 1.63(1.51+0.10) 1.50(1.35+0.14)
4000.5: log -p -3000 --patience 1.85(1.71+0.13) 1.73(1.62+0.10)
René
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