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runtime perf counter

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This commit is contained in:
Blaise Tine 2022-07-26 15:07:59 -07:00
parent 6c1b08f45d
commit 500afe661e
10 changed files with 95 additions and 32 deletions
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57
runtime/common/vx_utils.cpp
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@ -535,7 +535,62 @@ extern int vx_dump_perf(vx_device_h device, FILE* stream) {
// release allocated resources
vx_buf_free(staging_buf);
return ret;
return 0;
}
extern int vx_perf_counter(vx_device_h device, int counter, int core_id, uint64_t* value) {
int ret = 0;
uint64_t num_cores;
ret = vx_dev_caps(device, VX_CAPS_MAX_CORES, &num_cores);
if (ret != 0)
return ret;
if (core_id >= (int)num_cores) {
std::cout << "error: core_id out of range" << std::endl;
return -1;
}
uint64_t mpm_mem_size = 64 * sizeof(uint32_t);
vx_buffer_h staging_buf;
ret = vx_buf_alloc(device, mpm_mem_size, &staging_buf);
if (ret != 0)
return ret;
auto staging_ptr = (uint32_t*)vx_host_ptr(staging_buf);
uint64_t _value = 0;
unsigned i = 0;
if (core_id != -1) {
i = core_id;
num_cores = core_id + 1;
}
for (i = 0; i < num_cores; ++i) {
uint64_t mpm_mem_addr = IO_CSR_ADDR + i * mpm_mem_size;
ret = vx_copy_from_dev(staging_buf, mpm_mem_addr, mpm_mem_size, 0);
if (ret != 0) {
vx_buf_free(staging_buf);
return ret;
}
auto per_core_value = get_csr_64(staging_ptr, counter);
if (counter == CSR_MCYCLE) {
_value = std::max<uint64_t>(per_core_value, _value);
} else {
_value += per_core_value;
}
}
// release allocated resources
vx_buf_free(staging_buf);
// output
*value = _value;
return 0;
}
// Deprecated API functions