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| -rw-r--r-- | archival/libunarchive/decompress_bunzip2.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/archival/libunarchive/decompress_bunzip2.c b/archival/libunarchive/decompress_bunzip2.c index 00ec47c75..2fa0f898a 100644 --- a/archival/libunarchive/decompress_bunzip2.c +++ b/archival/libunarchive/decompress_bunzip2.c @@ -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 |