mem_pool: add GIT_TRACE_MEMPOOL support

Add tracing around initializing and discarding mempools. In discard report
on the amount of memory unused in the current block to help tune setting
the initial_size.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
This commit is contained in:
Ben Peart
2018-10-04 18:10:21 -04:00
committed by Johannes Schindelin
parent b27a8cd392
commit 110fdb1334

View File

@@ -5,6 +5,7 @@
#include "cache.h"
#include "mem-pool.h"
static struct trace_key trace_mem_pool = TRACE_KEY_INIT(MEMPOOL);
#define BLOCK_GROWTH_SIZE 1024*1024 - sizeof(struct mp_block);
/*
@@ -48,12 +49,16 @@ void mem_pool_init(struct mem_pool **mem_pool, size_t initial_size)
mem_pool_alloc_block(pool, initial_size, NULL);
*mem_pool = pool;
trace_printf_key(&trace_mem_pool, "mem_pool (%p): init (%"PRIuMAX") initial size\n",
pool, (uintmax_t)initial_size);
}
void mem_pool_discard(struct mem_pool *mem_pool, int invalidate_memory)
{
struct mp_block *block, *block_to_free;
trace_printf_key(&trace_mem_pool, "mem_pool (%p): discard (%"PRIuMAX") unused\n",
mem_pool, (uintmax_t)(mem_pool->mp_block->end - mem_pool->mp_block->next_free));
block = mem_pool->mp_block;
while (block)
{