GoldsteinE

newtype State s a = State { runState :: s -> (a, s) }

instance Monad (State s) where
    (State x) >>= f = State $ \s ->
        let (a, s') = x s
            (State x') = f a
        in x' s'

instance Applicative (State s) where
    pure x = State $ \s -> (x, s)

GoldsteinE

newtype Writer w a = Writer { runWriter :: (a, w) }

instance Functor (Writer w) where
	fmap f x = let (Writer (a, w)) = x in Writer (f a, w)

instance (Monoid w) => Applicative (Writer w) where
	pure x = Writer (x, mempty)
	Writer (f, w2) <*> Writer (x, w1) = Writer (f x, w1 `mappend` w2)

instance (Monoid w) => Monad (Writer w) where

GoldsteinE

#include <stdio.h>
#include <sys/mman.h>

int main() {
	printf("mmaping zero\n");
	int* pa = mmap(0, sizeof(int), PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE | MAP_ANON, -1, 0);
	if (pa == MAP_FAILED) {
		perror("mmap failed: ");
		return 1;
	}

GoldsteinE

HEAD is now at b97cc36 fixup! Refactor Storage so operations can fail
With #[derive(Hash)]:
Pre-heating...
Iteration #1:
Debug:

real	0m6.437s
user	0m6.089s
sys	0m0.491s
Release:

GoldsteinE

HEAD is now at b97cc36 fixup! Refactor Storage so operations can fail
With #[derive(Hash)]:
Pre-heating...
Iteration #1:
Debug:
Release:

Iteration #2:
Debug:
Release:

GoldsteinE

#!/bin/sh

preheat() {
	echo "Pre-heating..."
	cargo build >/dev/null 2>&1
	cargo build --release >/dev/null 2>&1
}

run_benchmark() {
	for i in $(seq 1 5); do

GoldsteinE

#!/bin/sh

preheat() {
	echo "Pre-heating..."
	cargo build >/dev/null 2>&1
	cargo build --release >/dev/null 2>&1
}

run_benchmark() {
	for i in $(seq 1 5); do

GoldsteinE

#!/bin/sh

preheat() {
	echo "Pre-heating..."
	cargo build >/dev/null 2>&1
	cargo build --release >/dev/null 2>&1
}

run_benchmark() {
	for i in $(seq 1 5); do

GoldsteinE

+-----------------------------------------------+-----------+-----------------+----------+------------+------------+--------------+-----------------------+
| Item                                          | Self time | % of total time | Time     | Item count | Cache hits | Blocked time | Incremental load time |
+-----------------------------------------------+-----------+-----------------+----------+------------+------------+--------------+-----------------------+
| LLVM_module_codegen_emit_obj                  | 15.12s    | 32.756          | 15.12s   | 461        | 0          | 0.00ns       | 0.00ns                |
+-----------------------------------------------+-----------+-----------------+----------+------------+------------+--------------+-----------------------+
| codegen_module                                | 5.32s     | 11.526          | 5.70s    | 461        | 0          | 0.00ns       | 0.00ns                |
+-----------------------------------------------+-----------+-----------------+---------

GoldsteinE

+---------------------------------------------+-----------+-----------------+----------+------------+------------+--------------+-----------------------+
| Item                                        | Self time | % of total time | Time     | Item count | Cache hits | Blocked time | Incremental load time |
+---------------------------------------------+-----------+-----------------+----------+------------+------------+--------------+-----------------------+
| LLVM_module_optimize_module_passes          | 36.70s    | 25.719          | 36.70s   | 16         | 0          | 0.00ns       | 0.00ns                |
+---------------------------------------------+-----------+-----------------+----------+------------+------------+--------------+-----------------------+
| LLVM_thin_lto_optimize                      | 31.21s    | 21.869          | 31.21s   | 16         | 0          | 0.00ns       | 0.00ns                |
+---------------------------------------------+-----------+-----------------+----------+------------