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add more printouts to unit test of buddy allocator
This commit is contained in:
jonas@perch.ndb.mysql.com 2006-02-21 17:29:45 +01:00
parent d8b3acdf50
commit fa2d73a995
1 changed files with 67 additions and 16 deletions
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83
storage/ndb/src/kernel/vm/ndbd_malloc_impl.cpp
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@ -52,8 +52,8 @@ static
bool
do_malloc(Uint32 pages, InitChunk* chunk)
{
void * ptr;
pages += 1;
void * ptr = 0;
Uint32 sz = pages;
if (strcmp(f_method, "sbrk") == 0)
{
@ -92,7 +92,7 @@ do_malloc(Uint32 pages, InitChunk* chunk)
}
}
}
chunk->m_cnt = sz;
chunk->m_ptr = (Alloc_page*)ptr;
const UintPtr align = sizeof(Alloc_page) - 1;
@ -101,6 +101,26 @@ do_malloc(Uint32 pages, InitChunk* chunk)
chunk->m_cnt--;
chunk->m_ptr = (Alloc_page*)((UintPtr(ptr) + align) & ~align);
}
#ifdef UNIT_TEST
ndbout_c("do_malloc(%d) -> %p %d", pages, ptr, chunk->m_cnt);
if (1)
{
Uint32 sum = 0;
Alloc_page* page = chunk->m_ptr;
for (Uint32 i = 0; i<chunk->m_cnt; i++, page++)
{
page->m_data[0*1024] = 0;
page->m_data[1*1024] = 0;
page->m_data[2*1024] = 0;
page->m_data[3*1024] = 0;
page->m_data[4*1024] = 0;
page->m_data[5*1024] = 0;
page->m_data[6*1024] = 0;
page->m_data[7*1024] = 0;
}
}
#endif
return true;
}
@ -286,6 +306,10 @@ Ndbd_mem_manager::grow(Uint32 start, Uint32 cnt)
__LINE__, start, cnt);
return;
}
#ifdef UNIT_TEST
ndbout_c("creating bitmap page %d", start_bmp);
#endif
Alloc_page* bmp = m_base_page + start;
memset(bmp, 0, sizeof(Alloc_page));
@ -388,7 +412,7 @@ Ndbd_mem_manager::alloc(Uint32* ret, Uint32 *pages, Uint32 min)
*/
Int32 min_list = log2(min - 1);
assert(list >= min_list);
assert((Int32)list >= min_list);
for (i = list - 1; i >= min_list; i--)
{
if ((start = m_buddy_lists[i]))
@ -552,33 +576,60 @@ struct Timer
Uint32 cnt;
Timer() { sum = cnt = 0;}
struct timeval st;
void start() {
gettimeofday(&st, 0);
}
Uint64 calc_diff() {
struct timeval st2;
gettimeofday(&st2, 0);
Uint64 diff = st2.tv_sec;
diff -= st.tv_sec;
diff *= 1000000;
diff += st2.tv_usec;
diff -= st.tv_usec;
return diff;
}
void stop() {
add(calc_diff());
}
void add(Uint64 diff) { sum += diff; cnt++;}
void print(const char * title) const {
printf("%s %lld %d -> %d/s\n", title, sum, cnt, Uint32(1000*cnt/sum));
float ps = sum;
ps /= cnt;
printf("%s %fus/call %lld %d\n", title, ps, sum, cnt);
}
};
int
main(void)
main(int argc, char** argv)
{
int sz = 3*32768;
if (argc > 1)
sz = 32*atoi(argv[1]);
char buf[255];
Timer timer[4];
printf("Startar modul test av Page Manager\n");
printf("Startar modul test av Page Manager %dMb\n", (sz >> 5));
g_eventLogger.createConsoleHandler();
g_eventLogger.setCategory("keso");
g_eventLogger.enable(Logger::LL_ON, Logger::LL_INFO);
g_eventLogger.enable(Logger::LL_ON, Logger::LL_CRITICAL);
g_eventLogger.enable(Logger::LL_ON, Logger::LL_ERROR);
g_eventLogger.enable(Logger::LL_ON, Logger::LL_WARNING);
#define DEBUG 0
Ndbd_mem_manager mem;
Resource_limit rl;
rl.m_min = 0;
rl.m_max = 2*32768 + 2*16384;
rl.m_max = sz;
rl.m_curr = 0;
rl.m_resource_id = 0;
mem.set_resource_limit(rl);
@ -592,7 +643,7 @@ main(void)
printf("pid: %d press enter to continue\n", getpid());
fgets(buf, sizeof(buf), stdin);
Vector<Chunk> chunks;
const Uint32 LOOPS = 1000000;
const Uint32 LOOPS = 100000000;
for(Uint32 i = 0; i<LOOPS; i++){
//mem.dump();
@ -625,10 +676,10 @@ main(void)
const int ch = rand() % chunks.size();
Chunk chunk = chunks[ch];
chunks.erase(ch);
timer[0].start();
Uint64 start = NdbTick_CurrentMillisecond();
mem.release(chunk.pageId, chunk.pageCount);
Uint64 stop = NdbTick_CurrentMillisecond();
timer[0].add(stop-start);
timer[0].stop();
if(DEBUG)
printf(" release %d %d\n", chunk.pageId, chunk.pageCount);
}
@ -644,9 +695,9 @@ main(void)
{
printf(" alloc %d -> ", alloc); fflush(stdout);
}
Uint64 start = NdbTick_CurrentMillisecond();
timer[0].start();
mem.alloc(&chunk.pageId, &chunk.pageCount, 1);
Uint64 stop = NdbTick_CurrentMillisecond();
Uint64 diff = timer[0].calc_diff();
if (DEBUG)
printf("%d %d", chunk.pageId, chunk.pageCount);
@ -654,17 +705,17 @@ main(void)
if(chunk.pageCount != 0){
chunks.push_back(chunk);
if(chunk.pageCount != alloc) {
timer[2].add(stop-start);
timer[2].add(diff);
if (DEBUG)
printf(" - Tried to allocate %d - only allocated %d - free: %d",
alloc, chunk.pageCount, 0);
}
else
{
timer[1].add(stop-start);
timer[1].add(diff);
}
} else {
timer[3].add(stop-start);
timer[3].add(diff);
if (DEBUG)
printf(" Failed to alloc %d pages with %d pages free",
alloc, 0);