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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2021-06-30 02:12:27 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2021-06-30 08:01:29 +0200 |
| commit | 6cf6f1eaee1f6be2b936c2ff0e5852c00740edb4 (patch) | |
| tree | 155241f4286faca0cd1c79633dfcb527d90b2fe0 /docs | |
| parent | f99800758e24ff159808ca0b44064f548ed77a26 (diff) | |
| download | busybox-w32-6cf6f1eaee1f6be2b936c2ff0e5852c00740edb4.tar.gz busybox-w32-6cf6f1eaee1f6be2b936c2ff0e5852c00740edb4.tar.bz2 busybox-w32-6cf6f1eaee1f6be2b936c2ff0e5852c00740edb4.zip | |
awk: remove custom pool allocator for temporary awk variables
It seems to be designed to reduce overhead of malloc's auxiliary data,
by allocating at least 64 variables as a block.
With "struct var" being about 20-32 bytes long (32/64 bits),
malloc overhead for one temporary indeed is high, ~33% more memory used
than needed.
function old new delta
evaluate 3137 3145 +8
modprobe_main 798 803 +5
exec_builtin 1414 1419 +5
awk_printf 476 481 +5
as_regex 132 137 +5
EMSG_INTERNAL_ERROR 15 - -15
nvfree 169 116 -53
nvalloc 145 - -145
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 5/1 up/down: 28/-213) Total: -185 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions