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mem: align memory to requested alignment

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Improve the allocators to always align the buffer memory to the
requested alignment
Use aligned read and writes for sse functions and check alignment,
optionally falling back to unaligned path.
Add more tests and benchmark cases
Check and warn for misaligned memory in plugins.
This commit is contained in:
Wim Taymans 2019-01-24 18:28:52 +01:00
parent dd66469570
commit 13bf70a8dd
19 changed files with 736 additions and 516 deletions
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53
spa/plugins/audioconvert/benchmark-fmt-ops.c
View file

@ -31,52 +31,65 @@
#include "fmt-ops.c"
#define N_SAMPLES 4096
#define N_CHANNELS 5
#define MAX_SAMPLES 4096
#define MAX_CHANNELS 11
#define MAX_COUNT 1000
static uint8_t samp_in[N_SAMPLES * N_CHANNELS * 4];
static uint8_t samp_out[N_SAMPLES * N_CHANNELS * 4];
static uint8_t samp_in[MAX_SAMPLES * MAX_CHANNELS * 4];
static uint8_t samp_out[MAX_SAMPLES * MAX_CHANNELS * 4];
static void run_test(const char *name, bool in_packed, bool out_packed, convert_func_t func)
static const int sample_sizes[] = { 0, 1, 128, 513, 4096 };
static const int channel_counts[] = { 1, 2, 4, 6, 8, 11 };
static void run_test1(const char *name, bool in_packed, bool out_packed, convert_func_t func,
int n_channels, int n_samples)
{
const void *ip[N_CHANNELS];
void *op[N_CHANNELS];
int i, j, ic, oc, ns;
int i, j;
const void *ip[n_channels];
void *op[n_channels];
struct timespec ts;
uint64_t t1, t2;
uint64_t count = 0;
uint64_t count, t1, t2;
for (j = 0; j < N_CHANNELS; j++) {
ip[j] = &samp_in[j * N_SAMPLES * 4];
op[j] = &samp_out[j * N_SAMPLES * 4];
for (j = 0; j < n_channels; j++) {
ip[j] = &samp_in[j * n_samples * 4];
op[j] = &samp_out[j * n_samples * 4];
}
ic = in_packed ? 1 : N_CHANNELS;
oc = out_packed ? 1 : N_CHANNELS;
ns = (in_packed && out_packed) ? N_SAMPLES * N_CHANNELS : N_SAMPLES;
clock_gettime(CLOCK_MONOTONIC, &ts);
t1 = SPA_TIMESPEC_TO_NSEC(&ts);
count = 0;
for (i = 0; i < MAX_COUNT; i++) {
func(NULL, oc, op, ic, ip, ns);
func(NULL, op, ip, n_channels, n_samples);
count++;
}
count *= N_SAMPLES;
clock_gettime(CLOCK_MONOTONIC, &ts);
t2 = SPA_TIMESPEC_TO_NSEC(&ts);
fprintf(stderr, "%s: elapsed %"PRIu64" count %"PRIu64" = %"PRIu64"/sec\n", name,
fprintf(stderr, "%s: samples %d, channels %d: elapsed %"PRIu64" count %"
PRIu64" = %"PRIu64"/sec\n", name, n_samples, n_channels,
t2 - t1, count, count * (uint64_t)SPA_NSEC_PER_SEC / (t2 - t1));
}
static void run_test(const char *name, bool in_packed, bool out_packed, convert_func_t func)
{
size_t i, j;
for (i = 0; i < SPA_N_ELEMENTS(sample_sizes); i++) {
for (j = 0; j < SPA_N_ELEMENTS(channel_counts); j++) {
run_test1(name, in_packed, out_packed, func, channel_counts[j],
(sample_sizes[i] + (channel_counts[j] -1)) / channel_counts[j]);
}
}
}
static void test_f32_u8(void)
{
run_test("test_f32_u8", true, true, conv_f32_to_u8);
run_test("test_f32d_u8", false, true, conv_f32d_to_u8);
run_test("test_f32_u8d", true, false, conv_f32_to_u8d);
run_test("test_f32d_u8d", false, false, conv_f32d_to_u8d);
}
static void test_u8_f32(void)