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actually smaller buffers to begin works better for small inputs

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This commit is contained in:
Paul Driver 2018-05-30 11:10:58 -07:00
parent d4e27d38a0
commit aaac65446e
1 changed files with 3 additions and 7 deletions
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10
jets/e/jam.c
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@ -3,10 +3,6 @@
*/
#include "all.h"
#define JAM_NONE 0
#define JAM_HEAD 1
#define JAM_TAIL 2
typedef struct {
c3_w a_w;
c3_w b_w;
@ -80,8 +76,8 @@ _jam_buf_top(u3_noun a)
c3_o cel_o;
c3_w* sal_w, len_w;
buf_u.a_w = 14930352; // fib(36) # of bits starting in wor_w
buf_u.b_w = 9227465; // fib(35)
buf_u.a_w = 144; // fib(12) is small enough to be reasonably fast to allocate.
buf_u.b_w = 89; // fib(11) is needed to get fib(13).
len_w = buf_u.a_w >> 5;
if ( (len_w << 5) != buf_u.a_w ) {
++len_w;
@ -139,7 +135,7 @@ _jam_buf_top(u3_noun a)
++len_w;
}
sal_w = u3a_slab(len_w);
memcpy(sal_w, buf_u.wor_w, len_w<<2);
memcpy(sal_w, buf_u.wor_w, len_w*sizeof(c3_w));
u3a_free(buf_u.wor_w);
u3h_free(har_p);
return u3a_mint(sal_w, len_w);