Overall, they provide a 15% improvement for my favorite testcase (QEMU's "no-op" build). These were first sent out last November, but there have been quite a few changes since then:
- I have dropped the SSE-optimized replacement for strpbrk, because it does not provide any improvement when tested with a newer glibc. - the improved hash function is now used for all case-insensitive hash tables, including those with NUL-terminated keys. - there are two new minor optimizations (patches 3 and 6) The benchmarks were rerun with a newer version of QEMU that has an improved Makefile. For this reason the times are lower and the speedup from patch 5 is smaller than I had reported for v1. Paolo Paolo Bonzini (6): use Jenkins hash use strchr for simple case of find_char_unquote use strchr/memmove in collapse_continuations remove MAP_PERCENT speedup parsing of functions do not use STOP_SET for singleton sets configure.ac | 1 + function.c | 9 +++- hash.c | 148 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ hash.h | 40 ++++++++-------- main.c | 5 +- makeint.h | 2 +- misc.c | 84 ++++++++++++++------------------- read.c | 79 +++++++++++++++++++++++-------- 8 files changed, 275 insertions(+), 93 deletions(-) -- 2.13.3 _______________________________________________ Bug-make mailing list Bug-make@gnu.org https://lists.gnu.org/mailman/listinfo/bug-make
