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Improving usage message.

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Copied from Perforce
 Change: 182772
 ServerID: perforce.ravenbrook.com
This commit is contained in:
Richard Brooksby 2013-06-16 00:55:41 +01:00
parent be18333bdb
commit 201a76c3b7
1 changed files with 25 additions and 4 deletions
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29
mps/code/djbench.c
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@ -114,7 +114,7 @@ static struct {
{"mvt", arena_wrap, dj_reserve, mps_class_mvt},
{"mvff", arena_wrap, dj_reserve, mps_class_mvff},
{"mv", arena_wrap, dj_alloc, mps_class_mv},
{"mvb", arena_wrap, dj_reserve, mps_class_mv},
{"mvb", arena_wrap, dj_reserve, mps_class_mv}, /* mv with buffers */
{"an", wrap, dj_malloc, dummy_class},
};
@ -143,9 +143,30 @@ int main(int argc, char *argv[]) {
break;
default:
fprintf(stderr,
"Usage: %s [option...]\n"
"Options: UTSL!\n",
argv[0]);
"Usage: %s [option...] [test...]\n"
"Options:\n"
" -i n, --niter=n\n"
" Iterate each test n times (default %u).\n"
" -p n, --npass=n\n"
" Pass over the block array n times (default %u).\n"
" -b n, --nblocks=n\n"
" Length of the block array (default %u).\n"
" -s n, --sshift=n\n"
" Log2 max block size in words (default %u).\n"
" -r p, --prob=p\n"
" Probability of acting on a block (default %g).\n"
"Tests:\n"
" mvt pool class MVT\n"
" mvff pool class MVFF\n"
" mv pool class MV\n"
" mvb pool class MV with buffers\n"
" an malloc\n",
argv[0],
niter,
npass,
nblocks,
sshift,
prob);
return EXIT_FAILURE;
}
argc -= optind;