5d49b72f1
Denys Vlasenko
2010-10-29
Subject
decompress_bunzip2: add profiling data to comment. no code changes
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archival/libunarchive/decompress_bunzip2.c+11 -0
| @@ -20,6 +20,17 @@ | |
| the Burrows-Wheeler transformation. Much of that time is delay | |
| resulting from cache misses. | |
| + | (2010 update by vda: profiled "bzcat <84mbyte.bz2 >/dev/null" |
| + | on x86-64 CPU with L2 > 1M: get_next_block is hotter than read_bunzip: |
| + | %time seconds calls function |
| + | 71.01 12.69 444 get_next_block |
| + | 28.65 5.12 93065 read_bunzip |
| + | 00.22 0.04 7736490 get_bits |
| + | 00.11 0.02 47 dealloc_bunzip |
| + | 00.00 0.00 93018 full_write |
| + | ...) |
| + | |
| + | |
| I would ask that anyone benefiting from this work, especially those | |
| using it in commercial products, consider making a donation to my local | |
| non-profit hospice organization (www.hospiceacadiana.com) in the name of | |