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Author SHA1 Message Date
Georgi Gerganov
0abc6a2c25
llama : llama_perf + option to disable timings during decode (#9355)
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* llama : llama_perf + option to disable timings during decode

ggml-ci

* common : add llama_arg

* Update src/llama.cpp

Co-authored-by: Xuan Son Nguyen <thichthat@gmail.com>

* perf : separate functions in the API

ggml-ci

* perf : safer pointer handling + naming update

ggml-ci

* minor : better local var name

* perf : abort on invalid sampler pointer

ggml-ci

---------

Co-authored-by: Xuan Son Nguyen <thichthat@gmail.com>
2024-09-13 09:53:38 +03:00
Gilad S.
bd35cb0ae3
feat: remove a sampler from a chain (#9445)
* feat: remove a sampler from a chain

* fix: return removed sampler

* fix: safer casting
2024-09-13 03:54:49 +02:00
23 changed files with 152 additions and 92 deletions

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@ -720,6 +720,14 @@ gpt_params_context gpt_params_parser_init(gpt_params & params, llama_example ex,
params.prompt = value;
}
));
add_opt(llama_arg(
{"--no-perf"},
format("disable internal libllama performance timings (default: %s)", params.no_perf ? "true" : "false"),
[](gpt_params & params) {
params.no_perf = true;
params.sparams.no_perf = true;
}
).set_env("LLAMA_ARG_NO_PERF"));
add_opt(llama_arg(
{"-f", "--file"}, "FNAME",
"a file containing the prompt (default: none)",

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@ -820,7 +820,7 @@ struct llama_init_result llama_init_from_gpt_params(gpt_params & params) {
}
llama_kv_cache_clear(lctx);
llama_synchronize(lctx);
llama_perf_reset(lctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_reset(lctx);
}
iparams.model = model;
@ -916,6 +916,7 @@ struct llama_context_params llama_context_params_from_gpt_params(const gpt_param
cparams.cb_eval_user_data = params.cb_eval_user_data;
cparams.offload_kqv = !params.no_kv_offload;
cparams.flash_attn = params.flash_attn;
cparams.no_perf = params.no_perf;
cparams.type_k = kv_cache_type_from_str(params.cache_type_k);
cparams.type_v = kv_cache_type_from_str(params.cache_type_v);

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@ -124,6 +124,7 @@ struct gpt_sampler_params {
float mirostat_eta = 0.10f; // learning rate
bool penalize_nl = false; // consider newlines as a repeatable token
bool ignore_eos = false;
bool no_perf = false; // disable performance metrics
std::vector<enum gpt_sampler_type> samplers = {
GPT_SAMPLER_TYPE_TOP_K,
@ -246,6 +247,7 @@ struct gpt_params {
bool simple_io = false; // improves compatibility with subprocesses and limited consoles
bool cont_batching = true; // insert new sequences for decoding on-the-fly
bool flash_attn = false; // flash attention
bool no_perf = false; // disable performance metrics
bool input_prefix_bos = false; // prefix BOS to user inputs, preceding input_prefix
bool logits_all = false; // return logits for all tokens in the batch

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@ -142,7 +142,7 @@ std::string gpt_sampler_params::print() const {
struct gpt_sampler * gpt_sampler_init(const struct llama_model * model, const struct gpt_sampler_params & params) {
llama_sampler_chain_params lparams = llama_sampler_chain_default_params();
lparams.no_perf = false; // TODO: control via params
lparams.no_perf = params.no_perf;
auto * result = new gpt_sampler {
/* .params = */ params,
@ -257,10 +257,10 @@ void gpt_perf_print(const struct llama_context * ctx, const struct gpt_sampler *
// TODO: measure grammar performance
if (gsmpl) {
llama_perf_print(gsmpl->chain, LLAMA_PERF_TYPE_SAMPLER_CHAIN);
llama_perf_sampler_print(gsmpl->chain);
}
if (ctx) {
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
}
}

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@ -187,7 +187,7 @@ int main(int argc, char ** argv) {
}
LOG_TEE("\n");
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
llama_batch_free(batch);

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@ -200,8 +200,8 @@ let t_main_end = ggml_time_us()
print("decoded \(n_decode) tokens in \(String(format: "%.2f", Double(t_main_end - t_main_start) / 1_000_000.0)) s, speed: \(String(format: "%.2f", Double(n_decode) / (Double(t_main_end - t_main_start) / 1_000_000.0))) t/s\n\n")
llama_perf_print(UnsafeRawPointer(context), LLAMA_PERF_TYPE_CONTEXT)
llama_perf_print(UnsafeRawPointer(smpl), LLAMA_PERF_TYPE_SAMPLER_CHAIN)
llama_perf_sampler_print(smpl)
llama_perf_context_print(context)
private func tokenize(text: String, add_bos: Bool) -> [llama_token] {
let utf8Count = text.utf8.count

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@ -229,8 +229,8 @@ int main(int argc, char ** argv) {
__func__, n_decode, (t_main_end - t_main_start) / 1000000.0f, n_decode / ((t_main_end - t_main_start) / 1000000.0f));
LOG_TEE("\n");
llama_perf_print(smpl, LLAMA_PERF_TYPE_SAMPLER_CHAIN);
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_sampler_print(smpl);
llama_perf_context_print(ctx);
fprintf(stderr, "\n");

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@ -306,7 +306,7 @@ int main(int argc, char ** argv) {
}
LOG_TEE("\n");
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
// clean up
llama_batch_free(batch);

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@ -182,7 +182,7 @@ int main(int argc, char ** argv) {
}
LOG_TEE("\n");
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
llama_free(ctx);
llama_free_model(model);

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@ -637,7 +637,7 @@ int main(int argc, char ** argv) {
g_collector.save_imatrix();
LOG_TEE("\n");
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
llama_free(ctx);
llama_free_model(model);

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@ -1630,7 +1630,7 @@ int main(int argc, char ** argv) {
fflush(p_err->fout);
}
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
llama_free(ctx);

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@ -308,7 +308,7 @@ int main(int argc, char ** argv) {
// process the prompt
process_prompt(ctx_llava, image_embed, &params, params.prompt);
llama_perf_print(ctx_llava->ctx_llama, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx_llava->ctx_llama);
llava_image_embed_free(image_embed);
ctx_llava->model = NULL;
llava_free(ctx_llava);
@ -325,7 +325,7 @@ int main(int argc, char ** argv) {
// process the prompt
process_prompt(ctx_llava, image_embed, &params, params.prompt);
llama_perf_print(ctx_llava->ctx_llama, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx_llava->ctx_llama);
llava_image_embed_free(image_embed);
ctx_llava->model = NULL;
llava_free(ctx_llava);

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@ -319,7 +319,7 @@ int main(int argc, char ** argv) {
}
}
printf("\n");
llama_perf_print(ctx_llava->ctx_llama, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx_llava->ctx_llama);
ctx_llava->model = NULL;
llava_free(ctx_llava);

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@ -240,8 +240,7 @@ int main(int argc, char ** argv){
LOG_TEE("accept = %.3f%%\n", 100.0f * n_accept / n_drafted);
LOG_TEE("\ntarget:\n\n");
llama_perf_print(smpl, LLAMA_PERF_TYPE_SAMPLER_CHAIN);
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
gpt_perf_print(ctx, smpl);
gpt_sampler_free(smpl);

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@ -415,7 +415,7 @@ int main(int argc, char ** argv) {
LOG_TEE("\n");
// TODO: print sampling/grammar timings for all clients
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
llama_batch_free(batch);

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@ -256,7 +256,7 @@ int main(int argc, char ** argv) {
__func__, n_decode, (t_main_end - t_main_start) / 1000000.0f, n_decode / ((t_main_end - t_main_start) / 1000000.0f));
LOG_TEE("\n");
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
fprintf(stderr, "\n");

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@ -2047,7 +2047,7 @@ int main(int argc, char ** argv) {
}
LOG_TEE("\n");
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
write_logfile(ctx, params, model, results);
llama_free(ctx);

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@ -292,7 +292,7 @@ int main(int argc, char ** argv) {
}
LOG_TEE("\n");
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx);
// clean up
llama_batch_free(query_batch);

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@ -154,8 +154,8 @@ int main(int argc, char ** argv) {
__func__, n_decode, (t_main_end - t_main_start) / 1000000.0f, n_decode / ((t_main_end - t_main_start) / 1000000.0f));
LOG_TEE("\n");
llama_perf_print(smpl, LLAMA_PERF_TYPE_SAMPLER_CHAIN);
llama_perf_print(ctx, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_sampler_print(smpl);
llama_perf_context_print(ctx);
fprintf(stderr, "\n");

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@ -616,7 +616,7 @@ int main(int argc, char ** argv) {
LOG_TEE("\ndraft:\n\n");
// TODO: print sampling/grammar timings for all drafts
llama_perf_print(ctx_dft, LLAMA_PERF_TYPE_CONTEXT);
llama_perf_context_print(ctx_dft);
LOG_TEE("\ntarget:\n\n");
gpt_perf_print(ctx_tgt, smpl);

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@ -343,7 +343,7 @@ extern "C" {
bool embeddings; // if true, extract embeddings (together with logits)
bool offload_kqv; // whether to offload the KQV ops (including the KV cache) to GPU
bool flash_attn; // whether to use flash attention [EXPERIMENTAL]
//bool no_perf; // whether to measure performance timings, TODO: implement
bool no_perf; // whether to measure performance timings
// Abort callback
// if it returns true, execution of llama_decode() will be aborted
@ -1056,6 +1056,9 @@ extern "C" {
LLAMA_API struct llama_sampler * llama_sampler_chain_get(const struct llama_sampler * chain, int32_t i);
LLAMA_API int llama_sampler_chain_n (const struct llama_sampler * chain);
// after removing a sampler, the chain will no longer own it, and it will not be freed when the chain is freed
LLAMA_API struct llama_sampler * llama_sampler_chain_remove( struct llama_sampler * chain, int32_t i);
// available samplers:
LLAMA_API struct llama_sampler * llama_sampler_init_greedy (void);
@ -1173,13 +1176,30 @@ extern "C" {
// NOTE: Used by llama.cpp examples, avoid using in third-party apps. Instead, do your own performance measurements.
//
enum llama_perf_type {
LLAMA_PERF_TYPE_CONTEXT = 0,
LLAMA_PERF_TYPE_SAMPLER_CHAIN = 1,
struct llama_perf_context_data {
double t_start_ms;
double t_load_ms;
double t_p_eval_ms;
double t_eval_ms;
int32_t n_p_eval;
int32_t n_eval;
};
LLAMA_API void llama_perf_print(const void * ctx, enum llama_perf_type type);
LLAMA_API void llama_perf_reset( void * ctx, enum llama_perf_type type);
struct llama_perf_sampler_data {
double t_sample_ms;
int32_t n_sample;
};
LLAMA_API struct llama_perf_context_data llama_perf_context (const struct llama_context * ctx);
LLAMA_API void llama_perf_context_print(const struct llama_context * ctx);
LLAMA_API void llama_perf_context_reset( struct llama_context * ctx);
// NOTE: the following work only with samplers constructed via llama_sampler_chain_init
LLAMA_API struct llama_perf_sampler_data llama_perf_sampler (const struct llama_sampler * chain);
LLAMA_API void llama_perf_sampler_print(const struct llama_sampler * chain);
LLAMA_API void llama_perf_sampler_reset( struct llama_sampler * chain);
LLAMA_API void llama_perf_dump_yaml(FILE * stream, const struct llama_context * ctx);

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@ -349,13 +349,26 @@ void llama_sampler_chain_add(struct llama_sampler * chain, struct llama_sampler
struct llama_sampler * llama_sampler_chain_get(const struct llama_sampler * chain, int32_t i) {
const auto * p = (const llama_sampler_chain *) chain->ctx;
if (i < 0 || i >= (int32_t) p->samplers.size()) {
if (i < 0 || (size_t) i >= p->samplers.size()) {
return nullptr;
}
return p->samplers[i];
}
struct llama_sampler * llama_sampler_chain_remove(struct llama_sampler * chain, int32_t i) {
auto * p = (llama_sampler_chain *) chain->ctx;
if (i < 0 || (size_t) i >= p->samplers.size()) {
return nullptr;
}
auto * result = p->samplers[i];
p->samplers.erase(p->samplers.begin() + i);
return result;
}
int llama_sampler_chain_n(const struct llama_sampler * chain) {
const auto * p = (const llama_sampler_chain *) chain->ctx;
@ -1656,3 +1669,37 @@ uint32_t llama_sampler_get_seed(const struct llama_sampler * smpl) {
return LLAMA_DEFAULT_SEED;
}
// perf
struct llama_perf_sampler_data llama_perf_sampler(const struct llama_sampler * chain) {
struct llama_perf_sampler_data data = {};
if (chain == nullptr || chain->iface != &llama_sampler_chain_i) {
GGML_ABORT("%s: invalid sampler passed - requires a sampler created with llama_sampler_chain_init()\n", __func__);
}
const auto * ctx = (const struct llama_sampler_chain *) chain->ctx;
data.t_sample_ms = 1e-3 * ctx->t_sample_us;
data.n_sample = std::max(0, ctx->n_sample);
return data;
}
void llama_perf_sampler_print(const struct llama_sampler * chain) {
const auto data = llama_perf_sampler(chain);
LLAMA_LOG_INFO("%s: sampling time = %10.2f ms / %5d runs (%8.2f ms per token, %8.2f tokens per second)\n",
__func__, data.t_sample_ms, data.n_sample, data.t_sample_ms / data.n_sample, 1e3 / data.t_sample_ms * data.n_sample);
}
void llama_perf_sampler_reset(struct llama_sampler * chain) {
if (chain == nullptr || chain->iface != &llama_sampler_chain_i) {
GGML_ABORT("%s: invalid sampler passed - requires a sampler created with llama_sampler_chain_init()\n", __func__);
}
auto * ctx = (struct llama_sampler_chain *) chain->ctx;
ctx->t_sample_us = ctx->n_sample = 0;
}

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@ -2486,6 +2486,7 @@ struct llama_cparams {
bool causal_attn;
bool offload_kqv;
bool flash_attn;
bool no_perf;
enum llama_pooling_type pooling_type;
@ -6661,8 +6662,6 @@ static bool llm_load_tensors(
bool use_mlock,
llama_progress_callback progress_callback,
void * progress_callback_user_data) {
model.t_start_us = ggml_time_us();
auto & hparams = model.hparams;
model.split_mode = split_mode;
@ -8593,14 +8592,13 @@ static bool llm_load_tensors(
}
}
// loading time will be recalculate after the first eval, so
// we take page faults deferred by mmap() into consideration
model.t_load_us = ggml_time_us() - model.t_start_us;
return true;
}
// Returns 0 on success, -1 on error, and -2 on cancellation via llama_progress_callback
static int llama_model_load(const std::string & fname, llama_model & model, llama_model_params & params) {
model.t_start_us = ggml_time_us();
try {
llama_model_loader ml(fname, params.use_mmap, params.check_tensors, params.kv_overrides);
@ -8662,6 +8660,10 @@ static int llama_model_load(const std::string & fname, llama_model & model, llam
return -1;
}
// loading time will be recalculate after the first eval, so
// we take page faults deferred by mmap() into consideration
model.t_load_us = ggml_time_us() - model.t_start_us;
return 0;
}
@ -17949,6 +17951,7 @@ struct llama_context_params llama_context_default_params() {
/*.embeddings =*/ false,
/*.offload_kqv =*/ true,
/*.flash_attn =*/ false,
/*.no_perf =*/ true,
/*.abort_callback =*/ nullptr,
/*.abort_callback_data =*/ nullptr,
};
@ -18159,6 +18162,7 @@ struct llama_context * llama_new_context_with_model(
cparams.embeddings = params.embeddings;
cparams.offload_kqv = params.offload_kqv;
cparams.flash_attn = params.flash_attn;
cparams.no_perf = params.no_perf;
cparams.pooling_type = params.pooling_type;
cparams.n_ctx = params.n_ctx == 0 ? hparams.n_ctx_train : params.n_ctx;
@ -20077,10 +20081,14 @@ void llama_synchronize(struct llama_context * ctx) {
// add the evaluation to the stats
if (ctx->n_queued_tokens == 1) {
ctx->t_eval_us += ggml_time_us() - ctx->t_compute_start_us;
if (!ctx->cparams.no_perf) {
ctx->t_eval_us += ggml_time_us() - ctx->t_compute_start_us;
}
ctx->n_eval++;
} else if (ctx->n_queued_tokens > 1) {
ctx->t_p_eval_us += ggml_time_us() - ctx->t_compute_start_us;
if (!ctx->cparams.no_perf) {
ctx->t_p_eval_us += ggml_time_us() - ctx->t_compute_start_us;
}
ctx->n_p_eval += ctx->n_queued_tokens;
}
@ -20688,65 +20696,40 @@ const char * llama_print_system_info(void) {
return s.c_str();
}
void llama_perf_print(const void * ctx, enum llama_perf_type type) {
switch (type) {
case LLAMA_PERF_TYPE_CONTEXT:
{
const auto * p = (const struct llama_context *) ctx;
struct llama_perf_context_data llama_perf_context(const struct llama_context * ctx) {
struct llama_perf_context_data data = {};
const double t_start_ms = 1e-3 * p->t_start_us;
const double t_end_ms = 1.00 * ggml_time_ms();
const double t_load_ms = 1e-3 * p->t_load_us;
const double t_p_eval_ms = 1e-3 * p->t_p_eval_us;
const double t_eval_ms = 1e-3 * p->t_eval_us;
const int32_t n_p_eval = std::max(0, p->n_p_eval);
const int32_t n_eval = std::max(1, p->n_eval);
LLAMA_LOG_INFO("%s: load time = %10.2f ms\n", __func__, t_load_ms);
LLAMA_LOG_INFO("%s: prompt eval time = %10.2f ms / %5d tokens (%8.2f ms per token, %8.2f tokens per second)\n",
__func__, t_p_eval_ms, n_p_eval, t_p_eval_ms / n_p_eval, 1e3 / t_p_eval_ms * n_p_eval);
LLAMA_LOG_INFO("%s: eval time = %10.2f ms / %5d runs (%8.2f ms per token, %8.2f tokens per second)\n",
__func__, t_eval_ms, n_eval, t_eval_ms / n_eval, 1e3 / t_eval_ms * n_eval);
LLAMA_LOG_INFO("%s: total time = %10.2f ms / %5d tokens\n", __func__, (t_end_ms - t_start_ms), (n_p_eval + n_eval));
} break;
case LLAMA_PERF_TYPE_SAMPLER_CHAIN:
{
const auto * smpl = (const struct llama_sampler *) ctx;
const auto * p = (const struct llama_sampler_chain *) smpl->ctx;
const double t_sampler_ms = 1e-3 * p->t_sample_us;
const int32_t n_sampler = std::max(0, p->n_sample);
LLAMA_LOG_INFO("%s: sampling time = %10.2f ms / %5d runs (%8.2f ms per token, %8.2f tokens per second)\n",
__func__, t_sampler_ms, n_sampler, t_sampler_ms / n_sampler, 1e3 / t_sampler_ms * n_sampler);
} break;
default:
GGML_ABORT("invalid perf type");
if (ctx == nullptr) {
return data;
}
data.t_start_ms = 1e-3 * ctx->t_start_us;
data.t_load_ms = 1e-3 * ctx->t_load_us;
data.t_p_eval_ms = 1e-3 * ctx->t_p_eval_us;
data.t_eval_ms = 1e-3 * ctx->t_eval_us;
data.n_p_eval = std::max(1, ctx->n_p_eval);
data.n_eval = std::max(1, ctx->n_eval);
return data;
}
void llama_perf_reset(void * ctx, enum llama_perf_type type) {
switch (type) {
case LLAMA_PERF_TYPE_CONTEXT:
{
auto * p = (struct llama_context *) ctx;
void llama_perf_context_print(const struct llama_context * ctx) {
const auto data = llama_perf_context(ctx);
p->t_start_us = ggml_time_us();
p->t_eval_us = p->n_eval = 0;
p->t_p_eval_us = p->n_p_eval = 0;
} break;
case LLAMA_PERF_TYPE_SAMPLER_CHAIN:
{
auto * smpl = (struct llama_sampler *) ctx;
auto * p = (struct llama_sampler_chain *) smpl->ctx;
const double t_end_ms = 1e-3 * ggml_time_us();
p->t_sample_us = p->n_sample = 0;
} break;
default:
GGML_ABORT("invalid perf type");
}
LLAMA_LOG_INFO("%s: load time = %10.2f ms\n", __func__, data.t_load_ms);
LLAMA_LOG_INFO("%s: prompt eval time = %10.2f ms / %5d tokens (%8.2f ms per token, %8.2f tokens per second)\n",
__func__, data.t_p_eval_ms, data.n_p_eval, data.t_p_eval_ms / data.n_p_eval, 1e3 / data.t_p_eval_ms * data.n_p_eval);
LLAMA_LOG_INFO("%s: eval time = %10.2f ms / %5d runs (%8.2f ms per token, %8.2f tokens per second)\n",
__func__, data.t_eval_ms, data.n_eval, data.t_eval_ms / data.n_eval, 1e3 / data.t_eval_ms * data.n_eval);
LLAMA_LOG_INFO("%s: total time = %10.2f ms / %5d tokens\n", __func__, (t_end_ms - data.t_start_ms), (data.n_p_eval + data.n_eval));
}
void llama_perf_context_reset(struct llama_context * ctx) {
ctx->t_start_us = ggml_time_us();
ctx->t_eval_us = ctx->n_eval = 0;
ctx->t_p_eval_us = ctx->n_p_eval = 0;
}
void llama_perf_dump_yaml(FILE * stream, const llama_context * ctx) {