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Allocate bitmaps along with stripes to avoid memory fragmentation

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This commit is contained in:
Vitaliy Filippov
2021-04-10 17:44:12 +03:00
parent 004f265393
commit 6bf88883ac
4 changed files with 24 additions and 21 deletions
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src/osd_rmw_test.cpp
+11 -3
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@@ -127,10 +127,13 @@ void test1()
void test4()
{
const uint32_t bmp = 4;
unsigned bitmaps[3] = { 0 };
osd_num_t osd_set[3] = { 1, 0, 3 };
osd_rmw_stripe_t stripes[3] = { 0 };
// Test 4.1
split_stripes(2, 128*1024, 128*1024-4096, 8192, stripes);
for (int i = 0; i < 3; i++)
stripes[i].bmp_buf = bitmaps+i;
void* write_buf = malloc(8192);
void* rmw_buf = calc_rmw(write_buf, stripes, osd_set, 3, 2, 2, osd_set, 128*1024, bmp);
assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024);
@@ -652,7 +655,7 @@ void test13()
assert(stripes[1].read_start == 0 && stripes[1].read_end == 128*1024);
assert(stripes[2].read_start == 0 && stripes[2].read_end == 128*1024);
assert(stripes[3].read_start == 0 && stripes[3].read_end == 128*1024);
void *read_buf = alloc_read_buffer(stripes, 4, 0, 0);
void *read_buf = alloc_read_buffer(stripes, 4, 0);
assert(read_buf);
assert(stripes[0].read_buf == read_buf);
assert(stripes[1].read_buf == read_buf+128*1024);
@@ -683,7 +686,7 @@ void test13()
assert(stripes[1].read_start == 0 && stripes[1].read_end == 0);
assert(stripes[2].read_start == 0 && stripes[2].read_end == 128*1024);
assert(stripes[3].read_start == 0 && stripes[3].read_end == 128*1024);
read_buf = alloc_read_buffer(stripes, 4, 0, 0);
read_buf = alloc_read_buffer(stripes, 4, 0);
assert(read_buf);
assert(stripes[0].read_buf == read_buf);
assert(stripes[1].read_buf == NULL);
@@ -723,6 +726,7 @@ void test14()
osd_num_t osd_set[3] = { 1, 2, 0 };
osd_num_t write_osd_set[3] = { 1, 2, 3 };
osd_rmw_stripe_t stripes[3] = { 0 };
unsigned bitmaps[3] = { 0 };
// Test 13.0
void *write_buf = malloc_or_die(8192);
split_stripes(2, 128*1024, 128*1024-4096, 8192, stripes);
@@ -731,6 +735,8 @@ void test14()
assert(stripes[2].req_start == 0 && stripes[2].req_end == 0);
// Test 13.1
void *rmw_buf = calc_rmw(write_buf, stripes, osd_set, 3, 2, 3, write_osd_set, 128*1024, bmp);
for (int i = 0; i < 3; i++)
stripes[i].bmp_buf = bitmaps+i;
assert(rmw_buf);
assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024-4096);
assert(stripes[1].read_start == 4096 && stripes[1].read_end == 128*1024);
@@ -777,7 +783,9 @@ void test14()
assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024);
assert(stripes[1].read_start == 0 && stripes[1].read_end == 128*1024);
assert(stripes[2].read_start == 0 && stripes[2].read_end == 128*1024);
void *read_buf = alloc_read_buffer(stripes, 3, 0, bmp);
void *read_buf = alloc_read_buffer(stripes, 3, 0);
for (int i = 0; i < 3; i++)
stripes[i].bmp_buf = bitmaps+i;
assert(read_buf);
assert(stripes[0].read_buf == read_buf);
assert(stripes[1].read_buf == read_buf+128*1024);