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| author | Pedro Vicente Nunes <pvn@hdfgroup.org> | 2008-05-01 16:45:32 (GMT) |
|---|---|---|
| committer | Pedro Vicente Nunes <pvn@hdfgroup.org> | 2008-05-01 16:45:32 (GMT) |
| commit | 7a5edc075a27c9f1cb45260f3ffc2cce8ab5531e (patch) | |
| tree | 0a99b34735e97d7829d30893e13daa3a9ea7fec1 /tools/h5dump/h5dump.c | |
| parent | aec106e324ce20e5efb725c25a6a333c7970127b (diff) | |
| download | hdf5-7a5edc075a27c9f1cb45260f3ffc2cce8ab5531e.zip hdf5-7a5edc075a27c9f1cb45260f3ffc2cce8ab5531e.tar.gz hdf5-7a5edc075a27c9f1cb45260f3ffc2cce8ab5531e.tar.bz2 | |
[svn-r14905] Introduced a ratio formula compression ratio = uncompressed size / compressed size
in the printing of the compression with 3 digits of precision per hdf-forum NASA developers suggestion
tested: windows, linux, solaris
Diffstat (limited to 'tools/h5dump/h5dump.c')
| -rw-r--r-- | tools/h5dump/h5dump.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/tools/h5dump/h5dump.c b/tools/h5dump/h5dump.c index 2389ef4..694c634 100644 --- a/tools/h5dump/h5dump.c +++ b/tools/h5dump/h5dump.c @@ -2507,7 +2507,7 @@ dump_dcpl(hid_t dcpl_id,hid_t type_id, hid_t obj_id) int ndims = H5Sget_simple_extent_dims( sid, dims, NULL); hsize_t nelmts = 1; hsize_t size; - double per = 0; + double ratio = 0; hssize_t a, b; int ok = 0; @@ -2539,13 +2539,13 @@ dump_dcpl(hid_t dcpl_id,hid_t type_id, hid_t obj_id) size = nelmts * datum_size; a = size; b = storage_size; - if (a!=0) - per = (double) (b-a)/a; - - per = -per; - per *=100; - HDfprintf(stdout, "SIZE %Hu (%.1f%%COMPRESSION)\n ", storage_size, per); + /* compression ratio = uncompressed size / compressed size */ + + if (b!=0) + ratio = (double) a / (double) b; + + HDfprintf(stdout, "SIZE %Hu (%.3f:1 COMPRESSION)\n ", storage_size, ratio); } else |