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add os cache to arena

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This commit is contained in:
Daan Leijen 2019-11-10 10:10:10 -08:00
parent 268698b9ef
commit b04206a9d3
5 changed files with 115 additions and 14 deletions
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8
test/test-stress.c
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@ -1,4 +1,4 @@
/* ----------------------------------------------------------------------------
/* ----------------------------------------------------------------------------
Copyright (c) 2018,2019 Microsoft Research, Daan Leijen
This is free software; you can redistribute it and/or modify it under the
terms of the MIT license.
@ -64,9 +64,9 @@ static bool chance(size_t perc, random_t r) {
static void* alloc_items(size_t items, random_t r) {
if (chance(1, r)) {
if (chance(1,r)) items *= 1000; // 0.01% giant
else if (chance(10,r)) items *= 100; // 0.1% huge
else items *= 10; // 1% large objects;
if (chance(1, r)) items *= 1000; // 0.01% giant
else if (chance(10, r)) items *= 100; // 0.1% huge
else items *= 10; // 1% large objects;
}
if (items==40) items++; // pthreads uses that size for stack increases
uintptr_t* p = (uintptr_t*)mi_malloc(items*sizeof(uintptr_t));