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Add memset/memcpy benches to test_mem plugin

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26135 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Marcin Bukat 2010-05-18 10:14:15 +00:00
parent 0ea2753d86
commit a5c90d4986
1 changed files with 40 additions and 0 deletions
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40
apps/plugins/test_mem.c
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@ -36,6 +36,42 @@ static volatile int buf_iram[BUF_SIZE] IBSS_ATTR;
/* (Byte per loop * loops)>>20 * ticks per s * 10 / ticks = dMB per s */ /* (Byte per loop * loops)>>20 * ticks per s * 10 / ticks = dMB per s */
#define dMB_PER_SEC(cnt, delta) ((((BUF_SIZE*sizeof(int)*cnt)>>20)*HZ*10)/delta) #define dMB_PER_SEC(cnt, delta) ((((BUF_SIZE*sizeof(int)*cnt)>>20)*HZ*10)/delta)
void memset_test(volatile int *buf, int buf_size, int loop_cnt,
int line, char *ramtype)
{
int delta, dMB, i;
int last_tick = *rb->current_tick;
for(i=0; i < loop_cnt; i++)
memset((void *)buf, 0xff, buf_size);
delta = *rb->current_tick - last_tick;
delta = delta>0 ? delta : delta+1;
dMB = dMB_PER_SEC(loop_cnt, delta);
rb->screens[0]->putsf(0, line, "%s st: %3d.%d MB/s (%2d ticks for %d MB)",
ramtype, dMB/10, dMB%10, delta,
(loop_cnt*BUF_SIZE*4)>>20);
}
void memcpy_test(volatile int *buf, int buf_size, int loop_cnt,
int line, char *ramtype)
{
int delta, dMB, i;
int last_tick = *rb->current_tick;
for(i=0; i < loop_cnt; i++)
memcpy((void *)buf+(buf_size/2), (void *)buf, buf_size/2);
delta = *rb->current_tick - last_tick;
delta = delta>0 ? delta : delta+1;
dMB = dMB_PER_SEC(loop_cnt, delta);
rb->screens[0]->putsf(0, line, "%s cp: %3d.%d MB/s (%2d ticks for %d MB)",
ramtype, dMB/10, dMB%10, delta,
(loop_cnt*BUF_SIZE*4)>>21);
}
void write_test(volatile int *buf, int buf_size, int loop_cnt, void write_test(volatile int *buf, int buf_size, int loop_cnt,
int line, char *ramtype) int line, char *ramtype)
{ {
@ -155,9 +191,13 @@ enum plugin_status plugin_start(const void* parameter)
read_test (buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM"); read_test (buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
write_test(buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM"); write_test(buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
memset_test(buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
memcpy_test(buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
#if defined(PLUGIN_USE_IRAM) #if defined(PLUGIN_USE_IRAM)
read_test (buf_iram, BUF_SIZE, LOOP_REPEAT_IRAM, line++, "IRAM"); read_test (buf_iram, BUF_SIZE, LOOP_REPEAT_IRAM, line++, "IRAM");
write_test(buf_iram, BUF_SIZE, LOOP_REPEAT_IRAM, line++, "IRAM"); write_test(buf_iram, BUF_SIZE, LOOP_REPEAT_IRAM, line++, "IRAM");
memset_test(buf_iram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "IRAM");
memcpy_test(buf_iram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "IRAM");
#endif #endif
rb->screens[0]->update(); rb->screens[0]->update();