1acfb72e71
Hello Rob,
Here's a patch to your bunzip-3.c file. Nice work btw.
One minor bug fix... checking for error return when read()ing.
Some size/performance optimizations as well. One instance of
memset() seems unnecssary. You might want to take a look.
Anyway, on my machine, decompressing linux-2.6.0-test7.tar.bz2
to /dev/null gave the following times:
bunzip-3.c bzcat (system) bunzip-3.c (patched)
real 0m24.420s 0m22.725s 0m20.701s
user 0m23.930s 0m22.170s 0m20.180s
sys 0m0.070s 0m0.080s 0m0.140s
Size of the patched version is comparable (slightly larger or
smaller depending on compiler flags).
Manuel
|
||
|---|---|---|
| .. | ||
| archive_copy_file.c | ||
| archive_xread_all_eof.c | ||
| archive_xread_all.c | ||
| archive_xread_char.c | ||
| archive_xread.c | ||
| check_header_gzip.c | ||
| data_align.c | ||
| data_extract_all.c | ||
| data_extract_to_buffer.c | ||
| data_extract_to_stdout.c | ||
| data_skip.c | ||
| decompress_bunzip2.c | ||
| decompress_uncompress.c | ||
| decompress_unzip.c | ||
| filter_accept_all.c | ||
| filter_accept_list_reassign.c | ||
| filter_accept_list.c | ||
| filter_accept_reject_list.c | ||
| find_list_entry.c | ||
| get_header_ar.c | ||
| get_header_cpio.c | ||
| get_header_tar_bz2.c | ||
| get_header_tar_gz.c | ||
| get_header_tar.c | ||
| header_list.c | ||
| header_skip.c | ||
| header_verbose_list.c | ||
| init_handle.c | ||
| Makefile | ||
| Makefile.in | ||
| seek_by_char.c | ||
| seek_by_jump.c | ||
| uncompress.c | ||
| unpack_ar_archive.c | ||
| unzip.c | ||