diff options
Diffstat (limited to 'STATUS')
| -rw-r--r-- | STATUS | 40 |
1 files changed, 20 insertions, 20 deletions
@@ -18,7 +18,7 @@ processes are fixed to one CPU. The following functions are probably implemented optimally: -zset .................... always fastest (gcc); until ~1200 (clang [can be fixed with assembly]) +zset .................... always fastest zseti(a, +) ............. tomsfastmath is faster zseti(a, -) ............. tomsfastmath is faster zsetu ................... tomsfastmath is faster @@ -30,8 +30,20 @@ zodd .................... always fastest (shared with gmp) zeven_nonzero ........... always fastest (shared with gmp) zodd_nonzero ............ always fastest (shared with gmp) zbtest .................. always fastest -zsave ................... always fastest [clang needs zset fix] -zload ................... always fastest [clang needs zset fix] +zsave ................... always fastest +zload ................... always fastest + + + The following functions are probably implemented optimally, but + depends on other functions or call-cases for better performance: + +zneg(a, b) .............. always fastest +zabs(a, b) .............. always fastest +ztrunc(a, b, c) ......... always fastest +zbset(a, b, 1) .......... always fastest +zbset(a, b, 0) .......... always fastest +zbset(a, b, -1) ......... always fastest +zsplit .................. alternating with gmp for fastest, but gmp is a bit faster on average The following functions are probably implemented close to @@ -40,26 +52,14 @@ zload ................... always fastest [clang needs zset fix] zadd_unsigned ........... fastest after ~140 (depends on cc and libc) compared against zadd too ztrunc(a, a, b) ......... fastest until ~100, then 77 % (gcc) or 68 % (clang) of tomsfastmath zbset(a, a, 1) .......... always fastest -zbset(a, a, 0) .......... always fastest (faster with clang than gcc) +zbset(a, a, 0) .......... always fastest zbset(a, a, -1) ......... always fastest (only marginally faster than gmp with clang) zlsb .................... always fastest <<suspicious>> zlsh .................... not too fast anymore -zand .................... fastest after ~400, tomsfastmath before (gcc+glibc is slow) -zor ..................... fastest after ~1150, tomsfastmath before (gcc+glibc is slow) -zxor .................... fastest after ~400, tomsfastmath before (clang), gcc is slow -znot .................... always fastest (faster with musl than glibc) - - - The following functions are probably implemented optimally, but - depends on other functions or call-cases for better performance: - -zneg(a, b) .............. always fastest (gcc+musl); gcc is a bit slow [clang needs zset fix] -zabs(a, b) .............. always fastest (gcc+musl); gcc is a bit slow [clang needs zset fix] -ztrunc(a, b, c) ......... always fastest (gcc+musl); gcc is a bit slow [clang needs zset fix] -zbset(a, b, 1) .......... always fastest (gcc+musl); gcc is a bit slow [clang needs zset fix] -zbset(a, b, 0) .......... always fastest (gcc+musl); gcc is a bit slow [clang needs zset fix] -zbset(a, b, -1) ......... always fastest (gcc+musl); gcc is a bit slow [clang needs zset fix] -zsplit .................. alternating with gmp for fastest (clang and glibc is slower) +zand .................... fastest after ~400, tomsfastmath before +zor ..................... fastest after ~1150, tomsfastmath before +zxor .................... alternative with gmp after ~700, tomsfastmath before (musl), a bit slow with glibc +znot .................... always fastest The following functions require structural changes for |