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Use better memory strategy on Windows

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Rather than using the the rollo global to pick addresses, we select them
randomly now using a conservative vaspace.
This commit is contained in:
Justine Tunney 2024-07-20 02:20:03 -07:00
parent 6a5d4ed65b
commit 2018cac11f
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GPG key ID: BE714B4575D6E328
13 changed files with 113 additions and 124 deletions
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6
test/libc/intrin/mmap_scalability_test.c
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@ -41,7 +41,7 @@
void map_unmap_one_page(void) {
void *p;
if ((p = mmap(randaddr(), 1, PROT_READ | PROT_WRITE,
if ((p = mmap(__maps_randaddr(), 1, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)) == MAP_FAILED)
__builtin_trap();
if (munmap(p, 1))
@ -61,8 +61,8 @@ int main() {
int n = 10000;
kprintf("%20s creating %d sparse maps...\n", "", n);
for (int i = 0; i < n; ++i) {
if (mmap(randaddr(), 1, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
-1, 0) == MAP_FAILED)
if (mmap(__maps_randaddr(), 1, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
__builtin_trap();
}